Sep 10 02:26:29.019 INFO checking shockham/contours against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 02:26:29.019 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 02:26:29.019 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-2/try#3a2610c2a16575649896925631bf8cec4f4b1961:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 02:26:29.226 INFO blam! d837fd45c6de4fe11bbf829c9a087872be96d6ae7a1b0b77499640bff8a7abc8
Sep 10 02:26:29.227 INFO running `"docker" "start" "-a" "d837fd45c6de4fe11bbf829c9a087872be96d6ae7a1b0b77499640bff8a7abc8"`
Sep 10 02:26:31.689 INFO kablam! usermod: no changes
Sep 10 02:26:31.778 INFO kablam! error: failed to load source for a dependency on `caper`
Sep 10 02:26:31.778 INFO kablam! 
Sep 10 02:26:31.778 INFO kablam! Caused by:
Sep 10 02:26:31.778 INFO kablam!   Unable to update https://github.com/shockham/caper#6b103aa4
Sep 10 02:26:31.778 INFO kablam! 
Sep 10 02:26:31.778 INFO kablam! Caused by:
Sep 10 02:26:31.778 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 10 02:26:31.778 INFO kablam! 
Sep 10 02:26:31.778 INFO kablam! Caused by:
Sep 10 02:26:31.778 INFO kablam!   Read-only file system (os error 30)
Sep 10 02:26:31.790 INFO kablam! su: No module specific data is present
Sep 10 02:26:33.608 INFO running `"docker" "rm" "-f" "d837fd45c6de4fe11bbf829c9a087872be96d6ae7a1b0b77499640bff8a7abc8"`
Sep 10 02:26:33.712 INFO blam! d837fd45c6de4fe11bbf829c9a087872be96d6ae7a1b0b77499640bff8a7abc8