[INFO] fetching crate contrive 0.1.1...
[INFO] testing contrive-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate contrive 0.1.1 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate contrive 0.1.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate contrive 0.1.1
[INFO] finished tweaking crates.io crate contrive 0.1.1
[INFO] tweaked toml for crates.io crate contrive 0.1.1 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate crates.io crate contrive 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7be3f1b0cc878de40faa2772017b332f1cb441f17059798b46d1c70991da4668
[INFO] running `Command { std: "docker" "start" "-a" "7be3f1b0cc878de40faa2772017b332f1cb441f17059798b46d1c70991da4668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7be3f1b0cc878de40faa2772017b332f1cb441f17059798b46d1c70991da4668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be3f1b0cc878de40faa2772017b332f1cb441f17059798b46d1c70991da4668", kill_on_drop: false }`
[INFO] [stdout] 7be3f1b0cc878de40faa2772017b332f1cb441f17059798b46d1c70991da4668
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18e81bc2d0980f4fc21a47c4a9ea98060657127d35feb9345f7381b47c5e2e6d
[INFO] running `Command { std: "docker" "start" "-a" "18e81bc2d0980f4fc21a47c4a9ea98060657127d35feb9345f7381b47c5e2e6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling contrive v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.38s
[INFO] running `Command { std: "docker" "inspect" "18e81bc2d0980f4fc21a47c4a9ea98060657127d35feb9345f7381b47c5e2e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18e81bc2d0980f4fc21a47c4a9ea98060657127d35feb9345f7381b47c5e2e6d", kill_on_drop: false }`
[INFO] [stdout] 18e81bc2d0980f4fc21a47c4a9ea98060657127d35feb9345f7381b47c5e2e6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35e264ecab6ffb4e8657c7d489700f3dcafbb7ce52038bd7a94a69c85768da2d
[INFO] running `Command { std: "docker" "start" "-a" "35e264ecab6ffb4e8657c7d489700f3dcafbb7ce52038bd7a94a69c85768da2d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling contrive v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/contrive-86979e15dd079776)
[INFO] running `Command { std: "docker" "inspect" "35e264ecab6ffb4e8657c7d489700f3dcafbb7ce52038bd7a94a69c85768da2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35e264ecab6ffb4e8657c7d489700f3dcafbb7ce52038bd7a94a69c85768da2d", kill_on_drop: false }`
[INFO] [stdout] 35e264ecab6ffb4e8657c7d489700f3dcafbb7ce52038bd7a94a69c85768da2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 62863a2f19101ae280a32fcdc61c05040b792f2f2363eaab7d2d48f5a4119f33
[INFO] running `Command { std: "docker" "start" "-a" "62863a2f19101ae280a32fcdc61c05040b792f2f2363eaab7d2d48f5a4119f33", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/contrive-86979e15dd079776)
[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" "62863a2f19101ae280a32fcdc61c05040b792f2f2363eaab7d2d48f5a4119f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62863a2f19101ae280a32fcdc61c05040b792f2f2363eaab7d2d48f5a4119f33", kill_on_drop: false }`
[INFO] [stdout] 62863a2f19101ae280a32fcdc61c05040b792f2f2363eaab7d2d48f5a4119f33