[INFO] fetching crate prisoners_switches 0.1.0...
[INFO] testing prisoners_switches-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate prisoners_switches 0.1.0 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate prisoners_switches 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prisoners_switches 0.1.0
[INFO] finished tweaking crates.io crate prisoners_switches 0.1.0
[INFO] tweaked toml for crates.io crate prisoners_switches 0.1.0 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c8667dd2081b618f60f946929b4cfd2e551acd47e20fe205584d1b5e35c2dcd
[INFO] running `Command { std: "docker" "start" "-a" "7c8667dd2081b618f60f946929b4cfd2e551acd47e20fe205584d1b5e35c2dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c8667dd2081b618f60f946929b4cfd2e551acd47e20fe205584d1b5e35c2dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c8667dd2081b618f60f946929b4cfd2e551acd47e20fe205584d1b5e35c2dcd", kill_on_drop: false }`
[INFO] [stdout] 7c8667dd2081b618f60f946929b4cfd2e551acd47e20fe205584d1b5e35c2dcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8eb680c22fd22332dbdf7b7b670ec684d5f8a48789ab29bf9681ec9753ec9f7c
[INFO] running `Command { std: "docker" "start" "-a" "8eb680c22fd22332dbdf7b7b670ec684d5f8a48789ab29bf9681ec9753ec9f7c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling prisoners_switches v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.55s
[INFO] running `Command { std: "docker" "inspect" "8eb680c22fd22332dbdf7b7b670ec684d5f8a48789ab29bf9681ec9753ec9f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eb680c22fd22332dbdf7b7b670ec684d5f8a48789ab29bf9681ec9753ec9f7c", kill_on_drop: false }`
[INFO] [stdout] 8eb680c22fd22332dbdf7b7b670ec684d5f8a48789ab29bf9681ec9753ec9f7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b48a85867a611b50ba3f056ff422ed914bad10f173ffd6a9afe9bf410707e9a1
[INFO] running `Command { std: "docker" "start" "-a" "b48a85867a611b50ba3f056ff422ed914bad10f173ffd6a9afe9bf410707e9a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling prisoners_switches v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "b48a85867a611b50ba3f056ff422ed914bad10f173ffd6a9afe9bf410707e9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b48a85867a611b50ba3f056ff422ed914bad10f173ffd6a9afe9bf410707e9a1", kill_on_drop: false }`
[INFO] [stdout] b48a85867a611b50ba3f056ff422ed914bad10f173ffd6a9afe9bf410707e9a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 25826fb9da7711cba11f353753e67909b38696ed443f139d4563f103a82ec4ac
[INFO] running `Command { std: "docker" "start" "-a" "25826fb9da7711cba11f353753e67909b38696ed443f139d4563f103a82ec4ac", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prisoners_switches-f1ff51df85b2691c)
[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" "25826fb9da7711cba11f353753e67909b38696ed443f139d4563f103a82ec4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25826fb9da7711cba11f353753e67909b38696ed443f139d4563f103a82ec4ac", kill_on_drop: false }`
[INFO] [stdout] 25826fb9da7711cba11f353753e67909b38696ed443f139d4563f103a82ec4ac