Update Rust crate camino to 1.2.6 - #916

control: job assigned to worker 01M4YSYVDBFZGKDGGPT910187Q [factory aws, i-03d6a1eeb5febf20b] (queued for 1 m 15 s)
...
task: starting task 0: "setup"
task: process exited: duration 4117 ms, exit code 0
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task: starting task 1: "rust-toolchain"
task: process exited: duration 17278 ms, exit code 0
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task: starting task 2: "authentication"
task: process exited: duration 17 ms, exit code 0
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task: starting task 3: "clone repository"
task: process exited: duration 2097 ms, exit code 0
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task: starting task 4: "build"
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|   ####   #    #  ######   ####   #    #   ####    ####   #    #
| 
| + cd /out
| + digest -a sha256 mg-ddm-gz.tar
| + digest -a sha256 mg-ddm.tar.gz
| + digest -a sha256 mgd.tar.gz
task: process exited: duration 342518 ms, exit code 0
|W| found 6 output files
|W| uploading: /out/mg-ddm-gz.sha256.txt (65 bytes)
|W| uploaded: /out/mg-ddm-gz.sha256.txt
|W| uploading: /out/mg-ddm-gz.tar (111377920 bytes)
|W| uploaded: /out/mg-ddm-gz.tar
|W| uploading: /out/mg-ddm.sha256.txt (65 bytes)
|W| uploaded: /out/mg-ddm.sha256.txt
|W| uploading: /out/mg-ddm.tar.gz (44549259 bytes)
|W| uploaded: /out/mg-ddm.tar.gz
|W| uploading: /out/mgd.sha256.txt (65 bytes)
|W| uploaded: /out/mgd.sha256.txt
|W| uploading: /out/mgd.tar.gz (57682553 bytes)
|W| uploaded: /out/mgd.tar.gz