[INFO] fetching crate flycatcher 0.1.1...
[INFO] testing flycatcher-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate flycatcher 0.1.1 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate flycatcher 0.1.1 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 flycatcher 0.1.1
[INFO] finished tweaking crates.io crate flycatcher 0.1.1
[INFO] tweaked toml for crates.io crate flycatcher 0.1.1 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate crates.io crate flycatcher 0.1.1 already has a lockfile, it will not be regenerated
[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 flycatcherc-link v0.1.1
[INFO] [stderr]   Downloaded flycatcherc-clif v0.1.1
[INFO] [stderr]   Downloaded object v0.26.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] cba2b81229a399e5f26821c52553f99809c816e0138489967d20390965e9c79c
[INFO] running `Command { std: "docker" "start" "-a" "cba2b81229a399e5f26821c52553f99809c816e0138489967d20390965e9c79c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cba2b81229a399e5f26821c52553f99809c816e0138489967d20390965e9c79c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cba2b81229a399e5f26821c52553f99809c816e0138489967d20390965e9c79c", kill_on_drop: false }`
[INFO] [stdout] cba2b81229a399e5f26821c52553f99809c816e0138489967d20390965e9c79c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 0a780df7514dc3f35e7136138f095affde58422bf63b9c06d1e8aeab27d7d92e
[INFO] running `Command { std: "docker" "start" "-a" "0a780df7514dc3f35e7136138f095affde58422bf63b9c06d1e8aeab27d7d92e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling cranelift-entity v0.76.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.76.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling target-lexicon v0.12.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling flycatcherc-link v0.1.1
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling regalloc v0.0.31
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.76.0
[INFO] [stderr]    Compiling cranelift-bforest v0.76.0
[INFO] [stderr]    Compiling flycatcher-diagnostic v0.1.1
[INFO] [stderr]    Compiling object v0.26.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling cranelift-codegen v0.76.0
[INFO] [stderr]    Compiling logos v0.12.0
[INFO] [stderr]    Compiling flycatcher-lexer v0.1.1
[INFO] [stderr]    Compiling flycatcher-parser v0.1.1
[INFO] [stderr]    Compiling flycatcherc v0.1.1
[INFO] [stderr]    Compiling cranelift-frontend v0.76.0
[INFO] [stderr]    Compiling cranelift-module v0.76.0
[INFO] [stderr]    Compiling cranelift-object v0.76.0
[INFO] [stderr]    Compiling cranelift v0.76.0
[INFO] [stderr]    Compiling flycatcherc-clif v0.1.1
[INFO] [stderr]    Compiling flycatcher v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.09s
[INFO] running `Command { std: "docker" "inspect" "0a780df7514dc3f35e7136138f095affde58422bf63b9c06d1e8aeab27d7d92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a780df7514dc3f35e7136138f095affde58422bf63b9c06d1e8aeab27d7d92e", kill_on_drop: false }`
[INFO] [stdout] 0a780df7514dc3f35e7136138f095affde58422bf63b9c06d1e8aeab27d7d92e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 8188cea9b97211a4b7540e9d024535ff0920f4d470a40b4cd4491a7d5b6e52db
[INFO] running `Command { std: "docker" "start" "-a" "8188cea9b97211a4b7540e9d024535ff0920f4d470a40b4cd4491a7d5b6e52db", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling flycatcher v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.24s
[INFO] running `Command { std: "docker" "inspect" "8188cea9b97211a4b7540e9d024535ff0920f4d470a40b4cd4491a7d5b6e52db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8188cea9b97211a4b7540e9d024535ff0920f4d470a40b4cd4491a7d5b6e52db", kill_on_drop: false }`
[INFO] [stdout] 8188cea9b97211a4b7540e9d024535ff0920f4d470a40b4cd4491a7d5b6e52db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 88a0f6e50aa38b22a79ce459b6447bb7ff1d7854d1cae90d2de3c0ac0478c8c7
[INFO] running `Command { std: "docker" "start" "-a" "88a0f6e50aa38b22a79ce459b6447bb7ff1d7854d1cae90d2de3c0ac0478c8c7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `flycatcher` (bin "flycatcher" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flycatcher-6c0ee0c5499c1425)
[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" "88a0f6e50aa38b22a79ce459b6447bb7ff1d7854d1cae90d2de3c0ac0478c8c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a0f6e50aa38b22a79ce459b6447bb7ff1d7854d1cae90d2de3c0ac0478c8c7", kill_on_drop: false }`
[INFO] [stdout] 88a0f6e50aa38b22a79ce459b6447bb7ff1d7854d1cae90d2de3c0ac0478c8c7