[INFO] cloning repository https://github.com/SimonPersson/flac-benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SimonPersson/flac-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonPersson%2Fflac-benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonPersson%2Fflac-benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d779d1c2e2312d6b64b051d63398ae9f9bb5d445
[INFO] testing SimonPersson/flac-benchmark against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonPersson%2Fflac-benchmark" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SimonPersson/flac-benchmark on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SimonPersson/flac-benchmark
[INFO] finished tweaking git repo https://github.com/SimonPersson/flac-benchmark
[INFO] tweaked toml for git repo https://github.com/SimonPersson/flac-benchmark written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/SimonPersson/flac-benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded metaflac v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be79af4750d94f29c73d7bbc872f4c74405f84a4e7c42f723d3edf2bf8f147e6
[INFO] running `Command { std: "docker" "start" "-a" "be79af4750d94f29c73d7bbc872f4c74405f84a4e7c42f723d3edf2bf8f147e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be79af4750d94f29c73d7bbc872f4c74405f84a4e7c42f723d3edf2bf8f147e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be79af4750d94f29c73d7bbc872f4c74405f84a4e7c42f723d3edf2bf8f147e6", kill_on_drop: false }`
[INFO] [stdout] be79af4750d94f29c73d7bbc872f4c74405f84a4e7c42f723d3edf2bf8f147e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b83088b1e7b0c5f5f86c570f8e32a9e272ab091038b0522b24d3c961f154b48c
[INFO] running `Command { std: "docker" "start" "-a" "b83088b1e7b0c5f5f86c570f8e32a9e272ab091038b0522b24d3c961f154b48c", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling metaflac v0.2.2
[INFO] [stderr]    Compiling flac-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "b83088b1e7b0c5f5f86c570f8e32a9e272ab091038b0522b24d3c961f154b48c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83088b1e7b0c5f5f86c570f8e32a9e272ab091038b0522b24d3c961f154b48c", kill_on_drop: false }`
[INFO] [stdout] b83088b1e7b0c5f5f86c570f8e32a9e272ab091038b0522b24d3c961f154b48c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b6b1b795857063bc4b35818d705b0e78571e555d6b38a09153686d7614273f7
[INFO] running `Command { std: "docker" "start" "-a" "5b6b1b795857063bc4b35818d705b0e78571e555d6b38a09153686d7614273f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling flac-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/metaflac_streaming.rs:127:59
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let mut vorbis_comments = read_from(path.clone(), Vec::new()).unwrap();
[INFO] [stdout]     |                                                           ^^^^^^^^^^
[INFO] [stdout]     |                                                           |
[INFO] [stdout]     |                                                           expected `&mut Vec<u8>`, found struct `Vec`
[INFO] [stdout]     |                                                           help: consider mutably borrowing here: `&mut Vec::new()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut Vec<u8>`
[INFO] [stdout]                           found struct `Vec<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/metaflac_streaming.rs:129:33
[INFO] [stdout]     |
[INFO] [stdout] 129 |         assert!(vorbis_comments.next());
[INFO] [stdout]     |                                 ^^^^- supplied 0 arguments
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 expected 1 argument
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> src/metaflac_streaming.rs:91:12
[INFO] [stdout]     |
[INFO] [stdout] 91  |     pub fn next(&mut self, bytes: &Vec<u8>) -> bool {
[INFO] [stdout]     |            ^^^^ ---------  ---------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/metaflac_streaming.rs:133:29
[INFO] [stdout]     |
[INFO] [stdout] 133 |             vorbis_comments.cur().unwrap().unwrap()
[INFO] [stdout]     |                             ^^^- supplied 0 arguments
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             expected 1 argument
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> src/metaflac_streaming.rs:74:12
[INFO] [stdout]     |
[INFO] [stdout] 74  |     pub fn cur<'a, 'b>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 75  |         &'a self,
[INFO] [stdout]     |         --------
[INFO] [stdout] 76  |         bytes: &'b Vec<u8>,
[INFO] [stdout]     |         ------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/metaflac_streaming.rs:136:33
[INFO] [stdout]     |
[INFO] [stdout] 136 |         assert!(vorbis_comments.next());
[INFO] [stdout]     |                                 ^^^^- supplied 0 arguments
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 expected 1 argument
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> src/metaflac_streaming.rs:91:12
[INFO] [stdout]     |
[INFO] [stdout] 91  |     pub fn next(&mut self, bytes: &Vec<u8>) -> bool {
[INFO] [stdout]     |            ^^^^ ---------  ---------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/metaflac_streaming.rs:140:29
[INFO] [stdout]     |
[INFO] [stdout] 140 |             vorbis_comments.cur().unwrap().unwrap()
[INFO] [stdout]     |                             ^^^- supplied 0 arguments
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             expected 1 argument
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> src/metaflac_streaming.rs:74:12
[INFO] [stdout]     |
[INFO] [stdout] 74  |     pub fn cur<'a, 'b>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 75  |         &'a self,
[INFO] [stdout]     |         --------
[INFO] [stdout] 76  |         bytes: &'b Vec<u8>,
[INFO] [stdout]     |         ------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/metaflac_streaming.rs:143:34
[INFO] [stdout]     |
[INFO] [stdout] 143 |         assert!(!vorbis_comments.next());
[INFO] [stdout]     |                                  ^^^^- supplied 0 arguments
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  expected 1 argument
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> src/metaflac_streaming.rs:91:12
[INFO] [stdout]     |
[INFO] [stdout] 91  |     pub fn next(&mut self, bytes: &Vec<u8>) -> bool {
[INFO] [stdout]     |            ^^^^ ---------  ---------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flac-benchmark` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "5b6b1b795857063bc4b35818d705b0e78571e555d6b38a09153686d7614273f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6b1b795857063bc4b35818d705b0e78571e555d6b38a09153686d7614273f7", kill_on_drop: false }`
[INFO] [stdout] 5b6b1b795857063bc4b35818d705b0e78571e555d6b38a09153686d7614273f7
