[INFO] updating cached repository amgoodfellow/baby-lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/amgoodfellow/baby-lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/amgoodfellow/baby-lang" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/amgoodfellow/baby-lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/amgoodfellow/baby-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/amgoodfellow/baby-lang" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/amgoodfellow/baby-lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/amgoodfellow/baby-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f77329101017c0030e448b4bccd95a5a4fa9ea40
[INFO] sha for GitHub repo amgoodfellow/baby-lang: f77329101017c0030e448b4bccd95a5a4fa9ea40
[INFO] validating manifest of amgoodfellow/baby-lang 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 amgoodfellow/baby-lang 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 amgoodfellow/baby-lang
[INFO] finished frobbing amgoodfellow/baby-lang
[INFO] frobbed toml for amgoodfellow/baby-lang written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/amgoodfellow/baby-lang/Cargo.toml
[INFO] started frobbing amgoodfellow/baby-lang
[INFO] finished frobbing amgoodfellow/baby-lang
[INFO] frobbed toml for amgoodfellow/baby-lang written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/amgoodfellow/baby-lang/Cargo.toml
[INFO] crate amgoodfellow/baby-lang 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 amgoodfellow/baby-lang against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-4/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/amgoodfellow/baby-lang:/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] d2c4bc7119c7b1800c1585fe9a298ae801c751e1d9ec439f4e1c1667f50eb8ac
[INFO] running `"docker" "start" "-a" "d2c4bc7119c7b1800c1585fe9a298ae801c751e1d9ec439f4e1c1667f50eb8ac"`
[INFO] [stderr]     Checking baby-lang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "d2c4bc7119c7b1800c1585fe9a298ae801c751e1d9ec439f4e1c1667f50eb8ac"`
[INFO] running `"docker" "rm" "-f" "d2c4bc7119c7b1800c1585fe9a298ae801c751e1d9ec439f4e1c1667f50eb8ac"`
[INFO] [stdout] d2c4bc7119c7b1800c1585fe9a298ae801c751e1d9ec439f4e1c1667f50eb8ac