[INFO] fetching crate deface 0.1.2...
[INFO] testing deface-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate deface 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate deface 0.1.2 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 deface 0.1.2
[INFO] finished tweaking crates.io crate deface 0.1.2
[INFO] tweaked toml for crates.io crate deface 0.1.2 written to /workspace/builds/worker-12/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded myriad v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] af0296c4834a84148f8483dbdcedfd2c1261a67ae381759a23117842c3de0049
[INFO] running `Command { std: "docker" "start" "-a" "af0296c4834a84148f8483dbdcedfd2c1261a67ae381759a23117842c3de0049", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af0296c4834a84148f8483dbdcedfd2c1261a67ae381759a23117842c3de0049", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0296c4834a84148f8483dbdcedfd2c1261a67ae381759a23117842c3de0049", kill_on_drop: false }`
[INFO] [stdout] af0296c4834a84148f8483dbdcedfd2c1261a67ae381759a23117842c3de0049
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 493fef4d9c7a0362bd4139147fdf57dd5d46eac05176de91c4223a499542c2d5
[INFO] running `Command { std: "docker" "start" "-a" "493fef4d9c7a0362bd4139147fdf57dd5d46eac05176de91c4223a499542c2d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling myriad v0.1.1
[INFO] [stderr]    Compiling deface v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:441:21
[INFO] [stdout]     |
[INFO] [stdout] 441 |                     tx.send(arg);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "493fef4d9c7a0362bd4139147fdf57dd5d46eac05176de91c4223a499542c2d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493fef4d9c7a0362bd4139147fdf57dd5d46eac05176de91c4223a499542c2d5", kill_on_drop: false }`
[INFO] [stdout] 493fef4d9c7a0362bd4139147fdf57dd5d46eac05176de91c4223a499542c2d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 4da978d88bc0301b451f09421e38b9ba4c79cd767b9d56bb7f5c7ab9faf2297b
[INFO] running `Command { std: "docker" "start" "-a" "4da978d88bc0301b451f09421e38b9ba4c79cd767b9d56bb7f5c7ab9faf2297b", kill_on_drop: false }`
[INFO] [stderr]    Compiling deface v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:441:21
[INFO] [stdout]     |
[INFO] [stdout] 441 |                     tx.send(arg);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4da978d88bc0301b451f09421e38b9ba4c79cd767b9d56bb7f5c7ab9faf2297b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da978d88bc0301b451f09421e38b9ba4c79cd767b9d56bb7f5c7ab9faf2297b", kill_on_drop: false }`
[INFO] [stdout] 4da978d88bc0301b451f09421e38b9ba4c79cd767b9d56bb7f5c7ab9faf2297b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 451ec3f14a338c7b9b8b02a326038699c9808abc675724a74664fdb64eb71a24
[INFO] running `Command { std: "docker" "start" "-a" "451ec3f14a338c7b9b8b02a326038699c9808abc675724a74664fdb64eb71a24", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:441:21
[INFO] [stderr]     |
[INFO] [stderr] 441 |                     tx.send(arg);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `deface` (bin "deface" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/deface-37ef3b5368cb620f)
[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" "451ec3f14a338c7b9b8b02a326038699c9808abc675724a74664fdb64eb71a24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "451ec3f14a338c7b9b8b02a326038699c9808abc675724a74664fdb64eb71a24", kill_on_drop: false }`
[INFO] [stdout] 451ec3f14a338c7b9b8b02a326038699c9808abc675724a74664fdb64eb71a24