[INFO] updating cached repository arifai/Software-Engineering-School
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arifai/Software-Engineering-School
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arifai/Software-Engineering-School" "work/ex/pr-60620/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/arifai/Software-Engineering-School"`
[INFO] [stderr] Cloning into 'work/ex/pr-60620/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/arifai/Software-Engineering-School'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  73% (764/1043)   
Checking out files:  74% (772/1043)   
Checking out files:  75% (783/1043)   
Checking out files:  76% (793/1043)   
Checking out files:  77% (804/1043)   
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Checking out files:  78% (814/1043)   
Checking out files:  79% (824/1043)   
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Checking out files:  80% (835/1043)   
Checking out files:  81% (845/1043)   
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Checking out files:  83% (866/1043)   
Checking out files:  84% (877/1043)   
Checking out files:  85% (887/1043)   
Checking out files:  86% (897/1043)   
Checking out files:  87% (908/1043)   
Checking out files:  88% (918/1043)   
Checking out files:  89% (929/1043)   
Checking out files:  90% (939/1043)   
Checking out files:  91% (950/1043)   
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Checking out files:  98% (1023/1043)   
Checking out files:  99% (1033/1043)   
Checking out files: 100% (1043/1043)   
Checking out files: 100% (1043/1043), done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arifai/Software-Engineering-School" "work/ex/pr-60620/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/arifai/Software-Engineering-School"`
[INFO] [stderr] Cloning into 'work/ex/pr-60620/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/arifai/Software-Engineering-School'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  73% (764/1043)   
Checking out files:  74% (772/1043)   
Checking out files:  75% (783/1043)   
Checking out files:  76% (793/1043)   
Checking out files:  77% (804/1043)   
Checking out files:  77% (810/1043)   
Checking out files:  78% (814/1043)   
Checking out files:  79% (824/1043)   
Checking out files:  80% (835/1043)   
Checking out files:  81% (845/1043)   
Checking out files:  82% (856/1043)   
Checking out files:  83% (866/1043)   
Checking out files:  84% (877/1043)   
Checking out files:  85% (887/1043)   
Checking out files:  85% (891/1043)   
Checking out files:  86% (897/1043)   
Checking out files:  87% (908/1043)   
Checking out files:  88% (918/1043)   
Checking out files:  89% (929/1043)   
Checking out files:  90% (939/1043)   
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Checking out files:  98% (1023/1043)   
Checking out files:  99% (1033/1043)   
Checking out files: 100% (1043/1043)   
Checking out files: 100% (1043/1043), done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f81606a426c9300660d7fc2515431b033473e490
[INFO] sha for GitHub repo arifai/Software-Engineering-School: f81606a426c9300660d7fc2515431b033473e490
[INFO] validating manifest of arifai/Software-Engineering-School on toolchain master#ef01f29964df207f181bd5bcf236e41372a17273
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of arifai/Software-Engineering-School on toolchain try#a7cff45e655f886da150e206c7acbe984df4ab71
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a7cff45e655f886da150e206c7acbe984df4ab71-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing arifai/Software-Engineering-School
[INFO] finished frobbing arifai/Software-Engineering-School
[INFO] frobbed toml for arifai/Software-Engineering-School written to work/ex/pr-60620/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/arifai/Software-Engineering-School/Cargo.toml
[INFO] started frobbing arifai/Software-Engineering-School
[INFO] finished frobbing arifai/Software-Engineering-School
[INFO] frobbed toml for arifai/Software-Engineering-School written to work/ex/pr-60620/sources/try#a7cff45e655f886da150e206c7acbe984df4ab71/gh/arifai/Software-Engineering-School/Cargo.toml
[INFO] crate arifai/Software-Engineering-School already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a7cff45e655f886da150e206c7acbe984df4ab71-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking arifai/Software-Engineering-School against master#ef01f29964df207f181bd5bcf236e41372a17273 for pr-60620
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60620/worker-7/master#ef01f29964df207f181bd5bcf236e41372a17273:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60620/sources/master#ef01f29964df207f181bd5bcf236e41372a17273/gh/arifai/Software-Engineering-School:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+ef01f29964df207f181bd5bcf236e41372a17273-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b28305a19d447139a75e780e92d3a10f6e99497c470641f90b4352f9a72a0b63
[INFO] running `"docker" "start" "-a" "b28305a19d447139a75e780e92d3a10f6e99497c470641f90b4352f9a72a0b63"`
[INFO] [stderr] error: failed to acquire package cache lock
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to open: /opt/crater/cargo-home/.package-cache
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `"docker" "inspect" "b28305a19d447139a75e780e92d3a10f6e99497c470641f90b4352f9a72a0b63"`
[INFO] running `"docker" "rm" "-f" "b28305a19d447139a75e780e92d3a10f6e99497c470641f90b4352f9a72a0b63"`
[INFO] [stdout] b28305a19d447139a75e780e92d3a10f6e99497c470641f90b4352f9a72a0b63