[INFO] fetching crate optimal-core 0.0.0...
[INFO] testing optimal-core-0.0.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate optimal-core 0.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate optimal-core 0.0.0
[INFO] finished tweaking crates.io crate optimal-core 0.0.0
[INFO] tweaked toml for crates.io crate optimal-core 0.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate optimal-core 0.0.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding blanket v0.3.0 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5999118717c335f0fe7c7f439bb2511a7eb83cdbc276864327c282de28732eb8
[INFO] running `Command { std: "docker" "start" "-a" "5999118717c335f0fe7c7f439bb2511a7eb83cdbc276864327c282de28732eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5999118717c335f0fe7c7f439bb2511a7eb83cdbc276864327c282de28732eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5999118717c335f0fe7c7f439bb2511a7eb83cdbc276864327c282de28732eb8", kill_on_drop: false }`
[INFO] [stdout] 5999118717c335f0fe7c7f439bb2511a7eb83cdbc276864327c282de28732eb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14e2dea2df3152a09518e0cae286b359cff837a5dbde717ca9f984d10fed12c2
[INFO] running `Command { std: "docker" "start" "-a" "14e2dea2df3152a09518e0cae286b359cff837a5dbde717ca9f984d10fed12c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling streaming-iterator v0.1.9
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling blanket v0.3.0
[INFO] [stderr]    Compiling optimal-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `Command { std: "docker" "inspect" "14e2dea2df3152a09518e0cae286b359cff837a5dbde717ca9f984d10fed12c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e2dea2df3152a09518e0cae286b359cff837a5dbde717ca9f984d10fed12c2", kill_on_drop: false }`
[INFO] [stdout] 14e2dea2df3152a09518e0cae286b359cff837a5dbde717ca9f984d10fed12c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c3f9f266cb3ae00e8934dcc6d0bdce8c2747b66f75a3e63f782a28971058407
[INFO] running `Command { std: "docker" "start" "-a" "4c3f9f266cb3ae00e8934dcc6d0bdce8c2747b66f75a3e63f782a28971058407", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling replace_with v0.1.8
[INFO] [stderr]    Compiling blanket v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling optimal-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.47s
[INFO] running `Command { std: "docker" "inspect" "4c3f9f266cb3ae00e8934dcc6d0bdce8c2747b66f75a3e63f782a28971058407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c3f9f266cb3ae00e8934dcc6d0bdce8c2747b66f75a3e63f782a28971058407", kill_on_drop: false }`
[INFO] [stdout] 4c3f9f266cb3ae00e8934dcc6d0bdce8c2747b66f75a3e63f782a28971058407
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 881a3319551a161ed149cb48270d000e2f0f4186b245d3eee78ad40268d6892a
[INFO] running `Command { std: "docker" "start" "-a" "881a3319551a161ed149cb48270d000e2f0f4186b245d3eee78ad40268d6892a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/optimal_core-b94e80557ab136ec)
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::examining_state_and_corresponding_evaluations_should_be_easy ... ok
[INFO] [stdout] test tests::optimizers_should_be_able_to_restart_automatically ... ok
[INFO] [stdout] test tests::optimizers_should_be_easily_comparable ... ok
[INFO] [stdout] test tests::parallel_optimization_runs_should_be_easy ... ok
[INFO] [stdout] test tests::dynamic_optimizers_should_be_partially_runable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests optimal_core
[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" "881a3319551a161ed149cb48270d000e2f0f4186b245d3eee78ad40268d6892a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "881a3319551a161ed149cb48270d000e2f0f4186b245d3eee78ad40268d6892a", kill_on_drop: false }`
[INFO] [stdout] 881a3319551a161ed149cb48270d000e2f0f4186b245d3eee78ad40268d6892a