[INFO] fetching crate kolakoski 2.0.0...
[INFO] testing kolakoski-2.0.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate kolakoski 2.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate kolakoski 2.0.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kolakoski 2.0.0
[INFO] finished tweaking crates.io crate kolakoski 2.0.0
[INFO] tweaked toml for crates.io crate kolakoski 2.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00c6951bc70f522507321a2a65467f83a519c7d84be835e8afb5c3f2275ded93
[INFO] running `Command { std: "docker" "start" "-a" "00c6951bc70f522507321a2a65467f83a519c7d84be835e8afb5c3f2275ded93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00c6951bc70f522507321a2a65467f83a519c7d84be835e8afb5c3f2275ded93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00c6951bc70f522507321a2a65467f83a519c7d84be835e8afb5c3f2275ded93", kill_on_drop: false }`
[INFO] [stdout] 00c6951bc70f522507321a2a65467f83a519c7d84be835e8afb5c3f2275ded93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e785c25ec5bcd8c49847d1daa2a9d4f0955e277d8ea95527375550adf027522
[INFO] running `Command { std: "docker" "start" "-a" "6e785c25ec5bcd8c49847d1daa2a9d4f0955e277d8ea95527375550adf027522", kill_on_drop: false }`
[INFO] [stderr]    Compiling kolakoski v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "6e785c25ec5bcd8c49847d1daa2a9d4f0955e277d8ea95527375550adf027522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e785c25ec5bcd8c49847d1daa2a9d4f0955e277d8ea95527375550adf027522", kill_on_drop: false }`
[INFO] [stdout] 6e785c25ec5bcd8c49847d1daa2a9d4f0955e277d8ea95527375550adf027522
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09af2aa811dcdfc221b9294383273e82648a23f82c1d4c43db97a7b36135df13
[INFO] running `Command { std: "docker" "start" "-a" "09af2aa811dcdfc221b9294383273e82648a23f82c1d4c43db97a7b36135df13", kill_on_drop: false }`
[INFO] [stderr]    Compiling kolakoski v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "09af2aa811dcdfc221b9294383273e82648a23f82c1d4c43db97a7b36135df13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09af2aa811dcdfc221b9294383273e82648a23f82c1d4c43db97a7b36135df13", kill_on_drop: false }`
[INFO] [stdout] 09af2aa811dcdfc221b9294383273e82648a23f82c1d4c43db97a7b36135df13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 75b5155d935ac774f77d4d4f8ec64fd65746a989a76e60028bd43a2fd35f9ca6
[INFO] running `Command { std: "docker" "start" "-a" "75b5155d935ac774f77d4d4f8ec64fd65746a989a76e60028bd43a2fd35f9ca6", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kolakoski-568435c4fab6f344)
[INFO] [stdout] test test::sequence ... ok
[INFO] [stderr]    Doc-tests kolakoski
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[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" "75b5155d935ac774f77d4d4f8ec64fd65746a989a76e60028bd43a2fd35f9ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b5155d935ac774f77d4d4f8ec64fd65746a989a76e60028bd43a2fd35f9ca6", kill_on_drop: false }`
[INFO] [stdout] 75b5155d935ac774f77d4d4f8ec64fd65746a989a76e60028bd43a2fd35f9ca6