[INFO] crate twiggy-opt 0.3.0 is already in cache
[INFO] extracting crate twiggy-opt 0.3.0 into work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/twiggy-opt/0.3.0
[INFO] extracting crate twiggy-opt 0.3.0 into work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/twiggy-opt/0.3.0
[INFO] validating manifest of twiggy-opt-0.3.0 on toolchain master#e2f221c75932de7a29845c8d6f1f73536ad00c41
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of twiggy-opt-0.3.0 on toolchain try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing twiggy-opt-0.3.0
[INFO] finished frobbing twiggy-opt-0.3.0
[INFO] frobbed toml for twiggy-opt-0.3.0 written to work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/twiggy-opt/0.3.0/Cargo.toml
[INFO] started frobbing twiggy-opt-0.3.0
[INFO] finished frobbing twiggy-opt-0.3.0
[INFO] frobbed toml for twiggy-opt-0.3.0 written to work/ex/pr-57617/sources/try#0bfb90d213a93e466b33d078a5b535a2a6f9c5ff/reg/twiggy-opt/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0bfb90d213a93e466b33d078a5b535a2a6f9c5ff-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking twiggy-opt-0.3.0 against master#e2f221c75932de7a29845c8d6f1f73536ad00c41 for pr-57617
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57617/worker-5/master#e2f221c75932de7a29845c8d6f1f73536ad00c41:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57617/sources/master#e2f221c75932de7a29845c8d6f1f73536ad00c41/reg/twiggy-opt/0.3.0:/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" "+e2f221c75932de7a29845c8d6f1f73536ad00c41-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 657a5ea34ac454652c00b5d076553424c7599fc1330230e93d6009c8a86027b9
[INFO] running `"docker" "start" "-a" "657a5ea34ac454652c00b5d076553424c7599fc1330230e93d6009c8a86027b9"`
[INFO] [stderr]     Checking fallible-iterator v0.1.6
[INFO] [stderr]     Checking frozen v1.0.0
[INFO] [stderr]    Compiling cpp_demangle v0.2.12
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling twiggy-opt v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking gimli v0.16.1
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking twiggy-ir v0.3.0
[INFO] [stderr]     Checking twiggy-traits v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.57s
[INFO] running `"docker" "inspect" "657a5ea34ac454652c00b5d076553424c7599fc1330230e93d6009c8a86027b9"`
[INFO] running `"docker" "rm" "-f" "657a5ea34ac454652c00b5d076553424c7599fc1330230e93d6009c8a86027b9"`
[INFO] [stdout] 657a5ea34ac454652c00b5d076553424c7599fc1330230e93d6009c8a86027b9