[INFO] updating cached repository aka-yuki/learning_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aka-yuki/learning_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aka-yuki/learning_rust" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/aka-yuki/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/aka-yuki/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aka-yuki/learning_rust" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/aka-yuki/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/aka-yuki/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 847d0dc3421a35cc4d8ae7a17a808c486628806e
[INFO] sha for GitHub repo aka-yuki/learning_rust: 847d0dc3421a35cc4d8ae7a17a808c486628806e
[INFO] validating manifest of aka-yuki/learning_rust on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aka-yuki/learning_rust on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aka-yuki/learning_rust
[INFO] finished frobbing aka-yuki/learning_rust
[INFO] frobbed toml for aka-yuki/learning_rust written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/aka-yuki/learning_rust/Cargo.toml
[INFO] started frobbing aka-yuki/learning_rust
[INFO] finished frobbing aka-yuki/learning_rust
[INFO] frobbed toml for aka-yuki/learning_rust written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/aka-yuki/learning_rust/Cargo.toml
[INFO] crate aka-yuki/learning_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking aka-yuki/learning_rust against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/aka-yuki/learning_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 04e9771f67f6ee9eaa06ecc0cd4dcb67b70f0cfe4a70bb1fb2bcbdb0cd4c763b
[INFO] running `"docker" "start" "-a" "04e9771f67f6ee9eaa06ecc0cd4dcb67b70f0cfe4a70bb1fb2bcbdb0cd4c763b"`
[INFO] [stderr]     Checking rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "04e9771f67f6ee9eaa06ecc0cd4dcb67b70f0cfe4a70bb1fb2bcbdb0cd4c763b"`
[INFO] running `"docker" "rm" "-f" "04e9771f67f6ee9eaa06ecc0cd4dcb67b70f0cfe4a70bb1fb2bcbdb0cd4c763b"`
[INFO] [stdout] 04e9771f67f6ee9eaa06ecc0cd4dcb67b70f0cfe4a70bb1fb2bcbdb0cd4c763b