[INFO] fetching crate try 1.0.0...
[INFO] testing try-1.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate try 1.0.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate try 1.0.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate try 1.0.0
[INFO] finished tweaking crates.io crate try 1.0.0
[INFO] tweaked toml for crates.io crate try 1.0.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfd2883a28369e014d6934ff6fa3d49f9a41ff959c242d69d926423a7c3a23b1
[INFO] running `Command { std: "docker" "start" "-a" "cfd2883a28369e014d6934ff6fa3d49f9a41ff959c242d69d926423a7c3a23b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfd2883a28369e014d6934ff6fa3d49f9a41ff959c242d69d926423a7c3a23b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd2883a28369e014d6934ff6fa3d49f9a41ff959c242d69d926423a7c3a23b1", kill_on_drop: false }`
[INFO] [stdout] cfd2883a28369e014d6934ff6fa3d49f9a41ff959c242d69d926423a7c3a23b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 782d5a0beaaadd75f0d287af497c34ace4d3e6e279065dad2fa2e525e67ba04a
[INFO] running `Command { std: "docker" "start" "-a" "782d5a0beaaadd75f0d287af497c34ace4d3e6e279065dad2fa2e525e67ba04a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling try v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "782d5a0beaaadd75f0d287af497c34ace4d3e6e279065dad2fa2e525e67ba04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "782d5a0beaaadd75f0d287af497c34ace4d3e6e279065dad2fa2e525e67ba04a", kill_on_drop: false }`
[INFO] [stdout] 782d5a0beaaadd75f0d287af497c34ace4d3e6e279065dad2fa2e525e67ba04a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66ff36d93bf6a690c71b719dfcfb165e2466fe6a0ba55144af3ed6c43249be53
[INFO] running `Command { std: "docker" "start" "-a" "66ff36d93bf6a690c71b719dfcfb165e2466fe6a0ba55144af3ed6c43249be53", kill_on_drop: false }`
[INFO] [stderr]    Compiling try v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "66ff36d93bf6a690c71b719dfcfb165e2466fe6a0ba55144af3ed6c43249be53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66ff36d93bf6a690c71b719dfcfb165e2466fe6a0ba55144af3ed6c43249be53", kill_on_drop: false }`
[INFO] [stdout] 66ff36d93bf6a690c71b719dfcfb165e2466fe6a0ba55144af3ed6c43249be53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] edf9d0904712eb2e67fc5a29b52d5ed8f99cd74f1f53b6ccf8102c0a90e7c85b
[INFO] running `Command { std: "docker" "start" "-a" "edf9d0904712eb2e67fc5a29b52d5ed8f99cd74f1f53b6ccf8102c0a90e7c85b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/try-7b98d2b0683ed4d7)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/try.rs (/opt/rustwide/target/debug/deps/try-54a89607f7650f8f)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests try
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_try ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - try (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "edf9d0904712eb2e67fc5a29b52d5ed8f99cd74f1f53b6ccf8102c0a90e7c85b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edf9d0904712eb2e67fc5a29b52d5ed8f99cd74f1f53b6ccf8102c0a90e7c85b", kill_on_drop: false }`
[INFO] [stdout] edf9d0904712eb2e67fc5a29b52d5ed8f99cd74f1f53b6ccf8102c0a90e7c85b