[INFO] fetching crate coronavirus 0.1.2...
[INFO] testing coronavirus-0.1.2 against 1.54.0 for beta-1.55-1
[INFO] extracting crate coronavirus 0.1.2 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate coronavirus 0.1.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coronavirus 0.1.2
[INFO] finished tweaking crates.io crate coronavirus 0.1.2
[INFO] tweaked toml for crates.io crate coronavirus 0.1.2 written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcf1010998cbc9a8282da8f3ce95736546fe7537d18bb4cef82c192b3d36bcd0
[INFO] running `Command { std: "docker" "start" "-a" "fcf1010998cbc9a8282da8f3ce95736546fe7537d18bb4cef82c192b3d36bcd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcf1010998cbc9a8282da8f3ce95736546fe7537d18bb4cef82c192b3d36bcd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcf1010998cbc9a8282da8f3ce95736546fe7537d18bb4cef82c192b3d36bcd0", kill_on_drop: false }`
[INFO] [stdout] fcf1010998cbc9a8282da8f3ce95736546fe7537d18bb4cef82c192b3d36bcd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25ee2a9c95960d70c1b9ab20835d55adc2a3f50dd630f9c7fcbc0020ca2f04fc
[INFO] running `Command { std: "docker" "start" "-a" "25ee2a9c95960d70c1b9ab20835d55adc2a3f50dd630f9c7fcbc0020ca2f04fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.45+curl-7.78.0
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling coronavirus v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut vec: Arc<Mutex<Vec<u8>>> = Arc::new(Mutex::new(Vec::new()));
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut c_vec = vec.clone();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.02s
[INFO] running `Command { std: "docker" "inspect" "25ee2a9c95960d70c1b9ab20835d55adc2a3f50dd630f9c7fcbc0020ca2f04fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ee2a9c95960d70c1b9ab20835d55adc2a3f50dd630f9c7fcbc0020ca2f04fc", kill_on_drop: false }`
[INFO] [stdout] 25ee2a9c95960d70c1b9ab20835d55adc2a3f50dd630f9c7fcbc0020ca2f04fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ab9db131799d5956761cddbd836b6f6bcd122922e0badc7c43d7a47cae6899f
[INFO] running `Command { std: "docker" "start" "-a" "5ab9db131799d5956761cddbd836b6f6bcd122922e0badc7c43d7a47cae6899f", kill_on_drop: false }`
[INFO] [stderr]    Compiling coronavirus v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut vec: Arc<Mutex<Vec<u8>>> = Arc::new(Mutex::new(Vec::new()));
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut c_vec = vec.clone();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "5ab9db131799d5956761cddbd836b6f6bcd122922e0badc7c43d7a47cae6899f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ab9db131799d5956761cddbd836b6f6bcd122922e0badc7c43d7a47cae6899f", kill_on_drop: false }`
[INFO] [stdout] 5ab9db131799d5956761cddbd836b6f6bcd122922e0badc7c43d7a47cae6899f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae018739da4d27bb410c1aa6704c89970024dd716b8be97ebba0a3bd8591c17b
[INFO] running `Command { std: "docker" "start" "-a" "ae018739da4d27bb410c1aa6704c89970024dd716b8be97ebba0a3bd8591c17b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut vec: Arc<Mutex<Vec<u8>>> = Arc::new(Mutex::new(Vec::new()));
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:14:6
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut c_vec = vec.clone();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/coronavirus-4d85000c5e9eedf7)
[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" "ae018739da4d27bb410c1aa6704c89970024dd716b8be97ebba0a3bd8591c17b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae018739da4d27bb410c1aa6704c89970024dd716b8be97ebba0a3bd8591c17b", kill_on_drop: false }`
[INFO] [stdout] ae018739da4d27bb410c1aa6704c89970024dd716b8be97ebba0a3bd8591c17b
