[INFO] fetching crate forty40 0.1.2...
[INFO] testing forty40-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate forty40 0.1.2 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate forty40 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forty40 0.1.2
[INFO] finished tweaking crates.io crate forty40 0.1.2
[INFO] tweaked toml for crates.io crate forty40 0.1.2 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 125147e4b41899819f20056af95c478caf5663790332f04894bfc1c4bb2f87df
[INFO] running `Command { std: "docker" "start" "-a" "125147e4b41899819f20056af95c478caf5663790332f04894bfc1c4bb2f87df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "125147e4b41899819f20056af95c478caf5663790332f04894bfc1c4bb2f87df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "125147e4b41899819f20056af95c478caf5663790332f04894bfc1c4bb2f87df", kill_on_drop: false }`
[INFO] [stdout] 125147e4b41899819f20056af95c478caf5663790332f04894bfc1c4bb2f87df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bc01b38b5c703504a83873416cdb1df2ad2fc0f26f46ba632db9e2993ee080a
[INFO] running `Command { std: "docker" "start" "-a" "2bc01b38b5c703504a83873416cdb1df2ad2fc0f26f46ba632db9e2993ee080a", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling forty40 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.74s
[INFO] running `Command { std: "docker" "inspect" "2bc01b38b5c703504a83873416cdb1df2ad2fc0f26f46ba632db9e2993ee080a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc01b38b5c703504a83873416cdb1df2ad2fc0f26f46ba632db9e2993ee080a", kill_on_drop: false }`
[INFO] [stdout] 2bc01b38b5c703504a83873416cdb1df2ad2fc0f26f46ba632db9e2993ee080a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73842be331e1ae1cab75c254869d5129fb46999951a4ba944c2a090ceb880303
[INFO] running `Command { std: "docker" "start" "-a" "73842be331e1ae1cab75c254869d5129fb46999951a4ba944c2a090ceb880303", kill_on_drop: false }`
[INFO] [stderr]    Compiling forty40 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `Command { std: "docker" "inspect" "73842be331e1ae1cab75c254869d5129fb46999951a4ba944c2a090ceb880303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73842be331e1ae1cab75c254869d5129fb46999951a4ba944c2a090ceb880303", kill_on_drop: false }`
[INFO] [stdout] 73842be331e1ae1cab75c254869d5129fb46999951a4ba944c2a090ceb880303
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b1b6ca772f3988903388763af79983019de742a693109f12f685783e282abdd
[INFO] running `Command { std: "docker" "start" "-a" "1b1b6ca772f3988903388763af79983019de742a693109f12f685783e282abdd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/forty40-4e0a4beb02ce7caf)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test macros::tests::check_r_permute ... ok
[INFO] [stdout] test macros::tests::next_last ... ok
[INFO] [stdout] test macros::tests::shuffle_str_works ... ok
[INFO] [stdout] test macros::tests::check_shuffle_permute ... ok
[INFO] [stdout] test util::perm::tests::generates_permutations ... ok
[INFO] [stdout] test util::shift::tests::shuffle_is_valid ... ok
[INFO] [stdout] test util::perm::tests::iter_works ... ok
[INFO] [stdout] test macros::tests::check_shuffle_len_constant ... ok
[INFO] [stdout] test util::shift::tests::transform_works ... ok
[INFO] [stdout] test util::shift::tests::transform_meets_validity_defn ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests forty40
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b1b6ca772f3988903388763af79983019de742a693109f12f685783e282abdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b1b6ca772f3988903388763af79983019de742a693109f12f685783e282abdd", kill_on_drop: false }`
[INFO] [stdout] 1b1b6ca772f3988903388763af79983019de742a693109f12f685783e282abdd