[INFO] updating cached repository tshlabs/maestro
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tshlabs/maestro
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tshlabs/maestro" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/tshlabs/maestro"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/tshlabs/maestro'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tshlabs/maestro" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/tshlabs/maestro"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/tshlabs/maestro'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ccf59900ea70d9214729c4b4a70d80040986fc45
[INFO] sha for GitHub repo tshlabs/maestro: ccf59900ea70d9214729c4b4a70d80040986fc45
[INFO] validating manifest of tshlabs/maestro on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tshlabs/maestro on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tshlabs/maestro
[INFO] finished frobbing tshlabs/maestro
[INFO] frobbed toml for tshlabs/maestro written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/tshlabs/maestro/Cargo.toml
[INFO] started frobbing tshlabs/maestro
[INFO] finished frobbing tshlabs/maestro
[INFO] frobbed toml for tshlabs/maestro written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/tshlabs/maestro/Cargo.toml
[INFO] crate tshlabs/maestro already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tshlabs/maestro against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-1/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/tshlabs/maestro:/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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6db76286c1f2aadea1c3e0f7c87cb6a23eb6a2db2886fbcd3df8c72865c6772e
[INFO] running `"docker" "start" "-a" "6db76286c1f2aadea1c3e0f7c87cb6a23eb6a2db2886fbcd3df8c72865c6772e"`
[INFO] [stderr]     Checking signal-hook v0.1.8
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking maestro v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.64s
[INFO] running `"docker" "inspect" "6db76286c1f2aadea1c3e0f7c87cb6a23eb6a2db2886fbcd3df8c72865c6772e"`
[INFO] running `"docker" "rm" "-f" "6db76286c1f2aadea1c3e0f7c87cb6a23eb6a2db2886fbcd3df8c72865c6772e"`
[INFO] [stdout] 6db76286c1f2aadea1c3e0f7c87cb6a23eb6a2db2886fbcd3df8c72865c6772e