[INFO] crate stackvec 0.2.1 is already in cache
[INFO] extracting crate stackvec 0.2.1 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/stackvec/0.2.1
[INFO] extracting crate stackvec 0.2.1 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/stackvec/0.2.1
[INFO] validating manifest of stackvec-0.2.1 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stackvec-0.2.1 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stackvec-0.2.1
[INFO] finished frobbing stackvec-0.2.1
[INFO] frobbed toml for stackvec-0.2.1 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/stackvec/0.2.1/Cargo.toml
[INFO] started frobbing stackvec-0.2.1
[INFO] finished frobbing stackvec-0.2.1
[INFO] frobbed toml for stackvec-0.2.1 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/stackvec/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing stackvec-0.2.1 against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/stackvec/0.2.1:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] b9e3655bc7b2c7f2523a49b83c95f91dbcfd4406e888b4851dfba0272cf76cae
[INFO] running `"docker" "start" "-a" "b9e3655bc7b2c7f2523a49b83c95f91dbcfd4406e888b4851dfba0272cf76cae"`
[INFO] [stderr]    Compiling stackvec v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] error: Could not compile `stackvec`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name stackvec src/lib.rs --color never --crate-type lib --emit=dep-info,link -C codegen-units=4 -C debuginfo=2 --cfg 'feature="a_thousand_array_impls"' --cfg 'feature="default"' -C metadata=31f9b3077b98524f -C extra-filename=-31f9b3077b98524f --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "b9e3655bc7b2c7f2523a49b83c95f91dbcfd4406e888b4851dfba0272cf76cae"`
[INFO] running `"docker" "rm" "-f" "b9e3655bc7b2c7f2523a49b83c95f91dbcfd4406e888b4851dfba0272cf76cae"`
[INFO] [stdout] b9e3655bc7b2c7f2523a49b83c95f91dbcfd4406e888b4851dfba0272cf76cae