[INFO] fetching crate kurobako_solvers 0.0.4...
[INFO] extracting crate kurobako_solvers 0.0.4 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/kurobako_solvers/0.0.4
[INFO] extracting crate kurobako_solvers 0.0.4 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/kurobako_solvers/0.0.4
[INFO] validating manifest of kurobako_solvers-0.0.4 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kurobako_solvers-0.0.4 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kurobako_solvers-0.0.4
[INFO] finished frobbing kurobako_solvers-0.0.4
[INFO] frobbed toml for kurobako_solvers-0.0.4 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/kurobako_solvers/0.0.4/Cargo.toml
[INFO] started frobbing kurobako_solvers-0.0.4
[INFO] finished frobbing kurobako_solvers-0.0.4
[INFO] frobbed toml for kurobako_solvers-0.0.4 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/kurobako_solvers/0.0.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking kurobako_solvers-0.0.4 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-3/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/kurobako_solvers/0.0.4:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 975c94ec9bbec71092e1a3cd6c78f70e7e3f9a5e70a4990a360b041f9f228a7e
[INFO] running `"docker" "start" "-a" "975c94ec9bbec71092e1a3cd6c78f70e7e3f9a5e70a4990a360b041f9f228a7e"`
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]     Checking statrs v0.11.0
[INFO] [stderr]     Checking trackable v0.2.22
[INFO] [stderr]     Checking rustats v0.0.7
[INFO] [stderr]     Checking yamakan v0.0.17
[INFO] [stderr]     Checking kurobako_core v0.0.8
[INFO] [stderr]     Checking kurobako_solvers v0.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.67s
[INFO] running `"docker" "inspect" "975c94ec9bbec71092e1a3cd6c78f70e7e3f9a5e70a4990a360b041f9f228a7e"`
[INFO] running `"docker" "rm" "-f" "975c94ec9bbec71092e1a3cd6c78f70e7e3f9a5e70a4990a360b041f9f228a7e"`
[INFO] [stdout] 975c94ec9bbec71092e1a3cd6c78f70e7e3f9a5e70a4990a360b041f9f228a7e