[INFO] crate mscorlib_safe_derive 0.1.3 is already in cache
[INFO] extracting crate mscorlib_safe_derive 0.1.3 into work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/mscorlib_safe_derive/0.1.3
[INFO] extracting crate mscorlib_safe_derive 0.1.3 into work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/mscorlib_safe_derive/0.1.3
[INFO] validating manifest of mscorlib_safe_derive-0.1.3 on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mscorlib_safe_derive-0.1.3 on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mscorlib_safe_derive-0.1.3
[INFO] finished frobbing mscorlib_safe_derive-0.1.3
[INFO] frobbed toml for mscorlib_safe_derive-0.1.3 written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/mscorlib_safe_derive/0.1.3/Cargo.toml
[INFO] started frobbing mscorlib_safe_derive-0.1.3
[INFO] finished frobbing mscorlib_safe_derive-0.1.3
[INFO] frobbed toml for mscorlib_safe_derive-0.1.3 written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/mscorlib_safe_derive/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mscorlib_safe_derive-0.1.3 against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-0/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/mscorlib_safe_derive/0.1.3:/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" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 775c61c87f16bb11f568308b3bbcca9ffe5fbdee9f82d61a0ad5fb599f11b18e
[INFO] running `"docker" "start" "-a" "775c61c87f16bb11f568308b3bbcca9ffe5fbdee9f82d61a0ad5fb599f11b18e"`
[INFO] [stderr]     Checking syn v0.14.9
[INFO] [stderr]     Checking mscorlib_safe_derive v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.04s
[INFO] running `"docker" "inspect" "775c61c87f16bb11f568308b3bbcca9ffe5fbdee9f82d61a0ad5fb599f11b18e"`
[INFO] running `"docker" "rm" "-f" "775c61c87f16bb11f568308b3bbcca9ffe5fbdee9f82d61a0ad5fb599f11b18e"`
[INFO] [stdout] 775c61c87f16bb11f568308b3bbcca9ffe5fbdee9f82d61a0ad5fb599f11b18e