[INFO] fetching crate retro 0.1.1...
[INFO] testing retro-0.1.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate retro 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate retro 0.1.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate retro 0.1.1
[INFO] finished tweaking crates.io crate retro 0.1.1
[INFO] tweaked toml for crates.io crate retro 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48c97ebaa4cfe6f8895ddf76134e7c77e2a21a374aa4af637bd33bf4bc8fdcee
[INFO] running `Command { std: "docker" "start" "-a" "48c97ebaa4cfe6f8895ddf76134e7c77e2a21a374aa4af637bd33bf4bc8fdcee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48c97ebaa4cfe6f8895ddf76134e7c77e2a21a374aa4af637bd33bf4bc8fdcee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c97ebaa4cfe6f8895ddf76134e7c77e2a21a374aa4af637bd33bf4bc8fdcee", kill_on_drop: false }`
[INFO] [stdout] 48c97ebaa4cfe6f8895ddf76134e7c77e2a21a374aa4af637bd33bf4bc8fdcee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59f0cb6d09c992aa2212315049dc8022324f30f9a86fcb942a2d0a2f4255a819
[INFO] running `Command { std: "docker" "start" "-a" "59f0cb6d09c992aa2212315049dc8022324f30f9a86fcb942a2d0a2f4255a819", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling retro v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:888:7
[INFO] [stdout]     |
[INFO] [stdout] 888 |       _ => unreachable!(),
[INFO] [stdout]     |       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/main.rs:1168:7
[INFO] [stdout]      |
[INFO] [stdout] 1168 |       _ => unreachable!(),
[INFO] [stdout]      |       ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.97s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "59f0cb6d09c992aa2212315049dc8022324f30f9a86fcb942a2d0a2f4255a819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59f0cb6d09c992aa2212315049dc8022324f30f9a86fcb942a2d0a2f4255a819", kill_on_drop: false }`
[INFO] [stdout] 59f0cb6d09c992aa2212315049dc8022324f30f9a86fcb942a2d0a2f4255a819
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 629111bb2eded02b3a50b211aada10206a4e136e0004401492b064a25bd6b103
[INFO] running `Command { std: "docker" "start" "-a" "629111bb2eded02b3a50b211aada10206a4e136e0004401492b064a25bd6b103", kill_on_drop: false }`
[INFO] [stderr]    Compiling retro v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:888:7
[INFO] [stdout]     |
[INFO] [stdout] 888 |       _ => unreachable!(),
[INFO] [stdout]     |       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/main.rs:1168:7
[INFO] [stdout]      |
[INFO] [stdout] 1168 |       _ => unreachable!(),
[INFO] [stdout]      |       ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "629111bb2eded02b3a50b211aada10206a4e136e0004401492b064a25bd6b103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "629111bb2eded02b3a50b211aada10206a4e136e0004401492b064a25bd6b103", kill_on_drop: false }`
[INFO] [stdout] 629111bb2eded02b3a50b211aada10206a4e136e0004401492b064a25bd6b103
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1944972f96e94b66e78a8e80dc6df0cd3ffe4454f0af1ea4992b5846e8b5bba5
[INFO] running `Command { std: "docker" "start" "-a" "1944972f96e94b66e78a8e80dc6df0cd3ffe4454f0af1ea4992b5846e8b5bba5", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:888:7
[INFO] [stderr]     |
[INFO] [stderr] 888 |       _ => unreachable!(),
[INFO] [stderr]     |       ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]     --> src/main.rs:1168:7
[INFO] [stderr]      |
[INFO] [stderr] 1168 |       _ => unreachable!(),
[INFO] [stderr]      |       ^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/retro-d5808d164b7bba60)
[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" "1944972f96e94b66e78a8e80dc6df0cd3ffe4454f0af1ea4992b5846e8b5bba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1944972f96e94b66e78a8e80dc6df0cd3ffe4454f0af1ea4992b5846e8b5bba5", kill_on_drop: false }`
[INFO] [stdout] 1944972f96e94b66e78a8e80dc6df0cd3ffe4454f0af1ea4992b5846e8b5bba5