[INFO] fetching crate interaction 0.3.4...
[INFO] testing interaction-0.3.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate interaction 0.3.4 into /workspace/builds/worker-40/source
[INFO] validating manifest of crates.io crate interaction 0.3.4 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 interaction 0.3.4
[INFO] finished tweaking crates.io crate interaction 0.3.4
[INFO] tweaked toml for crates.io crate interaction 0.3.4 written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate crates.io crate interaction 0.3.4 already has a lockfile, it will not be regenerated
[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-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] a1c64b6ba722dcb091b13a32c32da25371f216ecaf415f550787466a20ba9211
[INFO] running `Command { std: "docker" "start" "-a" "a1c64b6ba722dcb091b13a32c32da25371f216ecaf415f550787466a20ba9211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1c64b6ba722dcb091b13a32c32da25371f216ecaf415f550787466a20ba9211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1c64b6ba722dcb091b13a32c32da25371f216ecaf415f550787466a20ba9211", kill_on_drop: false }`
[INFO] [stdout] a1c64b6ba722dcb091b13a32c32da25371f216ecaf415f550787466a20ba9211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 2cdf84d07b431bc2f80cee469f1a4ff55e26ec2c5273ee59f51d71283d5eccfe
[INFO] running `Command { std: "docker" "start" "-a" "2cdf84d07b431bc2f80cee469f1a4ff55e26ec2c5273ee59f51d71283d5eccfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling interaction v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "2cdf84d07b431bc2f80cee469f1a4ff55e26ec2c5273ee59f51d71283d5eccfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cdf84d07b431bc2f80cee469f1a4ff55e26ec2c5273ee59f51d71283d5eccfe", kill_on_drop: false }`
[INFO] [stdout] 2cdf84d07b431bc2f80cee469f1a4ff55e26ec2c5273ee59f51d71283d5eccfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 85580e0a8d7b6790fbc1c3a596fff6a47c68b2b8ec943d805e4b27a771349a4e
[INFO] running `Command { std: "docker" "start" "-a" "85580e0a8d7b6790fbc1c3a596fff6a47c68b2b8ec943d805e4b27a771349a4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling interaction v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "85580e0a8d7b6790fbc1c3a596fff6a47c68b2b8ec943d805e4b27a771349a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85580e0a8d7b6790fbc1c3a596fff6a47c68b2b8ec943d805e4b27a771349a4e", kill_on_drop: false }`
[INFO] [stdout] 85580e0a8d7b6790fbc1c3a596fff6a47c68b2b8ec943d805e4b27a771349a4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 71f52b2b28ae2743841825edeb50d2ae1dfcc4574808a961707a5ebb1ff344ad
[INFO] running `Command { std: "docker" "start" "-a" "71f52b2b28ae2743841825edeb50d2ae1dfcc4574808a961707a5ebb1ff344ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/interaction-103fd3213a6985bf)
[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] [stderr]    Doc-tests interaction
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - InteractionBuilder (line 655) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 11) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "71f52b2b28ae2743841825edeb50d2ae1dfcc4574808a961707a5ebb1ff344ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f52b2b28ae2743841825edeb50d2ae1dfcc4574808a961707a5ebb1ff344ad", kill_on_drop: false }`
[INFO] [stdout] 71f52b2b28ae2743841825edeb50d2ae1dfcc4574808a961707a5ebb1ff344ad