[INFO] updating cached repository nyu-pl-sp19/class13
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nyu-pl-sp19/class13
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nyu-pl-sp19/class13" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nyu-pl-sp19/class13"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nyu-pl-sp19/class13'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nyu-pl-sp19/class13" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nyu-pl-sp19/class13"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nyu-pl-sp19/class13'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8db2450e414f5965c89cafb26a844661c6570fa
[INFO] sha for GitHub repo nyu-pl-sp19/class13: b8db2450e414f5965c89cafb26a844661c6570fa
[INFO] validating manifest of nyu-pl-sp19/class13 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 nyu-pl-sp19/class13 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 nyu-pl-sp19/class13
[INFO] finished frobbing nyu-pl-sp19/class13
[INFO] frobbed toml for nyu-pl-sp19/class13 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/nyu-pl-sp19/class13/Cargo.toml
[INFO] started frobbing nyu-pl-sp19/class13
[INFO] finished frobbing nyu-pl-sp19/class13
[INFO] frobbed toml for nyu-pl-sp19/class13 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nyu-pl-sp19/class13/Cargo.toml
[INFO] crate nyu-pl-sp19/class13 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 nyu-pl-sp19/class13 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/nyu-pl-sp19/class13:/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] cba15bbcff0e67a7db2b5129a378fb0c869182424d1d2bc794934d31bb597b03
[INFO] running `"docker" "start" "-a" "cba15bbcff0e67a7db2b5129a378fb0c869182424d1d2bc794934d31bb597b03"`
[INFO] [stderr]     Checking pl-class13 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "cba15bbcff0e67a7db2b5129a378fb0c869182424d1d2bc794934d31bb597b03"`
[INFO] running `"docker" "rm" "-f" "cba15bbcff0e67a7db2b5129a378fb0c869182424d1d2bc794934d31bb597b03"`
[INFO] [stdout] cba15bbcff0e67a7db2b5129a378fb0c869182424d1d2bc794934d31bb597b03