[INFO] cloning repository https://github.com/tkilbourn/rustfmt-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tkilbourn/rustfmt-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkilbourn%2Frustfmt-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkilbourn%2Frustfmt-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08a4cc21f02c394f35451574da8ee8513b031621
[INFO] testing tkilbourn/rustfmt-test against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftkilbourn%2Frustfmt-test" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tkilbourn/rustfmt-test 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 git repo https://github.com/tkilbourn/rustfmt-test
[INFO] finished tweaking git repo https://github.com/tkilbourn/rustfmt-test
[INFO] tweaked toml for git repo https://github.com/tkilbourn/rustfmt-test written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tkilbourn/rustfmt-test 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] 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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbade5b8a7d36db3689cf2b71202e28fe5e69fc18d376e6f94e01a5820652388
[INFO] running `Command { std: "docker" "start" "-a" "fbade5b8a7d36db3689cf2b71202e28fe5e69fc18d376e6f94e01a5820652388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbade5b8a7d36db3689cf2b71202e28fe5e69fc18d376e6f94e01a5820652388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbade5b8a7d36db3689cf2b71202e28fe5e69fc18d376e6f94e01a5820652388", kill_on_drop: false }`
[INFO] [stdout] fbade5b8a7d36db3689cf2b71202e28fe5e69fc18d376e6f94e01a5820652388
[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=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] a503268513e06a7103b3fa3324d85ce671c3435e7631e4860b8c4aab766dc0c0
[INFO] running `Command { std: "docker" "start" "-a" "a503268513e06a7103b3fa3324d85ce671c3435e7631e4860b8c4aab766dc0c0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustfmt-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `that`
[INFO] [stdout]  --> src/other.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     that: u64, does: u32,
[INFO] [stdout]   |     ^^^^ help: if this is intentional, prefix it with an underscore: `_that`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `does`
[INFO] [stdout]  --> src/other.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     that: u64, does: u32,
[INFO] [stdout]   |                ^^^^ help: if this is intentional, prefix it with an underscore: `_does`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `not`
[INFO] [stdout]  --> src/other.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     not: f32, follow: String, the: usize,
[INFO] [stdout]   |     ^^^ help: if this is intentional, prefix it with an underscore: `_not`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `follow`
[INFO] [stdout]  --> src/other.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     not: f32, follow: String, the: usize,
[INFO] [stdout]   |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_follow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `the`
[INFO] [stdout]  --> src/other.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 |     not: f32, follow: String, the: usize,
[INFO] [stdout]   |                               ^^^ help: if this is intentional, prefix it with an underscore: `_the`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rules`
[INFO] [stdout]  --> src/other.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     rules: &[u8]) ->
[INFO] [stdout]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_rules`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     other::long_function(0, 1, 1.5, String::new(), 2, &[0]);
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "a503268513e06a7103b3fa3324d85ce671c3435e7631e4860b8c4aab766dc0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a503268513e06a7103b3fa3324d85ce671c3435e7631e4860b8c4aab766dc0c0", kill_on_drop: false }`
[INFO] [stdout] a503268513e06a7103b3fa3324d85ce671c3435e7631e4860b8c4aab766dc0c0
[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=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] 4ac1167dbbab8e7c14f15fe90fda52ac4d652ada800f19d552a60f897fa73a8b
[INFO] running `Command { std: "docker" "start" "-a" "4ac1167dbbab8e7c14f15fe90fda52ac4d652ada800f19d552a60f897fa73a8b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustfmt-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `that`
[INFO] [stdout]  --> src/other.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     that: u64, does: u32,
[INFO] [stdout]   |     ^^^^ help: if this is intentional, prefix it with an underscore: `_that`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `does`
[INFO] [stdout]  --> src/other.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     that: u64, does: u32,
[INFO] [stdout]   |                ^^^^ help: if this is intentional, prefix it with an underscore: `_does`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `not`
[INFO] [stdout]  --> src/other.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     not: f32, follow: String, the: usize,
[INFO] [stdout]   |     ^^^ help: if this is intentional, prefix it with an underscore: `_not`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `follow`
[INFO] [stdout]  --> src/other.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 |     not: f32, follow: String, the: usize,
[INFO] [stdout]   |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_follow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `the`
[INFO] [stdout]  --> src/other.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 |     not: f32, follow: String, the: usize,
[INFO] [stdout]   |                               ^^^ help: if this is intentional, prefix it with an underscore: `_the`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rules`
[INFO] [stdout]  --> src/other.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     rules: &[u8]) ->
[INFO] [stdout]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_rules`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     other::long_function(0, 1, 1.5, String::new(), 2, &[0]);
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "4ac1167dbbab8e7c14f15fe90fda52ac4d652ada800f19d552a60f897fa73a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ac1167dbbab8e7c14f15fe90fda52ac4d652ada800f19d552a60f897fa73a8b", kill_on_drop: false }`
[INFO] [stdout] 4ac1167dbbab8e7c14f15fe90fda52ac4d652ada800f19d552a60f897fa73a8b
[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=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] 55e44cadbf2ffc59dcde16e5e001efedbd706194ee00a9213602caa90075b6ae
[INFO] running `Command { std: "docker" "start" "-a" "55e44cadbf2ffc59dcde16e5e001efedbd706194ee00a9213602caa90075b6ae", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `that`
[INFO] [stderr]  --> src/other.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     that: u64, does: u32,
[INFO] [stderr]   |     ^^^^ help: if this is intentional, prefix it with an underscore: `_that`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `does`
[INFO] [stderr]  --> src/other.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 |     that: u64, does: u32,
[INFO] [stderr]   |                ^^^^ help: if this is intentional, prefix it with an underscore: `_does`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `not`
[INFO] [stderr]  --> src/other.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     not: f32, follow: String, the: usize,
[INFO] [stderr]   |     ^^^ help: if this is intentional, prefix it with an underscore: `_not`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `follow`
[INFO] [stderr]  --> src/other.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 |     not: f32, follow: String, the: usize,
[INFO] [stderr]   |               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_follow`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `the`
[INFO] [stderr]  --> src/other.rs:3:31
[INFO] [stderr]   |
[INFO] [stderr] 3 |     not: f32, follow: String, the: usize,
[INFO] [stderr]   |                               ^^^ help: if this is intentional, prefix it with an underscore: `_the`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rules`
[INFO] [stderr]  --> src/other.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     rules: &[u8]) ->
[INFO] [stderr]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_rules`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     other::long_function(0, 1, 1.5, String::new(), 2, &[0]);
[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: `rustfmt-test` (bin "rustfmt-test" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustfmt_test-e790e17dad5dc8c6)
[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" "55e44cadbf2ffc59dcde16e5e001efedbd706194ee00a9213602caa90075b6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55e44cadbf2ffc59dcde16e5e001efedbd706194ee00a9213602caa90075b6ae", kill_on_drop: false }`
[INFO] [stdout] 55e44cadbf2ffc59dcde16e5e001efedbd706194ee00a9213602caa90075b6ae