[INFO] fetching crate wyz 0.4.0...
[INFO] testing wyz-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate wyz 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate wyz 0.4.0 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 wyz 0.4.0
[INFO] finished tweaking crates.io crate wyz 0.4.0
[INFO] tweaked toml for crates.io crate wyz 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8edd9046e5e9d8387ac2e244c0fdbb28a9236640159019d7e4a29be39ddb6d55
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8edd9046e5e9d8387ac2e244c0fdbb28a9236640159019d7e4a29be39ddb6d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8edd9046e5e9d8387ac2e244c0fdbb28a9236640159019d7e4a29be39ddb6d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8edd9046e5e9d8387ac2e244c0fdbb28a9236640159019d7e4a29be39ddb6d55", kill_on_drop: false }`
[INFO] [stdout] 8edd9046e5e9d8387ac2e244c0fdbb28a9236640159019d7e4a29be39ddb6d55
[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=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] 53621ea6aabc49297c5a96a3273331e9cc71c9d6e2ed2c59f6a89f63e7eba3ea
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "53621ea6aabc49297c5a96a3273331e9cc71c9d6e2ed2c59f6a89f63e7eba3ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling wyz v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "53621ea6aabc49297c5a96a3273331e9cc71c9d6e2ed2c59f6a89f63e7eba3ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53621ea6aabc49297c5a96a3273331e9cc71c9d6e2ed2c59f6a89f63e7eba3ea", kill_on_drop: false }`
[INFO] [stdout] 53621ea6aabc49297c5a96a3273331e9cc71c9d6e2ed2c59f6a89f63e7eba3ea
[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=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f50736f461c290c4b96e41087c34584d5874a2f1ee5feebd5029140b14e07936
[INFO] running `Command { std: "docker" "start" "-a" "f50736f461c290c4b96e41087c34584d5874a2f1ee5feebd5029140b14e07936", kill_on_drop: false }`
[INFO] [stderr]    Compiling wyz v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "f50736f461c290c4b96e41087c34584d5874a2f1ee5feebd5029140b14e07936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f50736f461c290c4b96e41087c34584d5874a2f1ee5feebd5029140b14e07936", kill_on_drop: false }`
[INFO] [stdout] f50736f461c290c4b96e41087c34584d5874a2f1ee5feebd5029140b14e07936
[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=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] f8cf657d9716b4f4ebeb7059c4424cb6701cf1f3c50e24e3f85bca85b2f6d02d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f8cf657d9716b4f4ebeb7059c4424cb6701cf1f3c50e24e3f85bca85b2f6d02d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wyz-5dc4a6f396de659f)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wyz
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/exit.rs - exit (line 10) ... ok
[INFO] [stdout] test src/exit.rs - exit (line 16) ... ok
[INFO] [stdout] test src/exit.rs - exit (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f8cf657d9716b4f4ebeb7059c4424cb6701cf1f3c50e24e3f85bca85b2f6d02d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8cf657d9716b4f4ebeb7059c4424cb6701cf1f3c50e24e3f85bca85b2f6d02d", kill_on_drop: false }`
[INFO] [stdout] f8cf657d9716b4f4ebeb7059c4424cb6701cf1f3c50e24e3f85bca85b2f6d02d