[INFO] cloning repository https://github.com/DaniilMarch/pcm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DaniilMarch/pcm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaniilMarch%2Fpcm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaniilMarch%2Fpcm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c5dc40ca8d20943ac4bbe2b8695e5428d7ab673
[INFO] checking DaniilMarch/pcm against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaniilMarch%2Fpcm" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DaniilMarch/pcm on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DaniilMarch/pcm
[INFO] finished tweaking git repo https://github.com/DaniilMarch/pcm
[INFO] tweaked toml for git repo https://github.com/DaniilMarch/pcm written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DaniilMarch/pcm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 368c56375fd21ce194ac0281d7e56fcea2aaa3bf888f2b98b7d4450b274a0971
[INFO] running `Command { std: "docker" "start" "-a" "368c56375fd21ce194ac0281d7e56fcea2aaa3bf888f2b98b7d4450b274a0971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "368c56375fd21ce194ac0281d7e56fcea2aaa3bf888f2b98b7d4450b274a0971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368c56375fd21ce194ac0281d7e56fcea2aaa3bf888f2b98b7d4450b274a0971", kill_on_drop: false }`
[INFO] [stdout] 368c56375fd21ce194ac0281d7e56fcea2aaa3bf888f2b98b7d4450b274a0971
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30103ca99d252acc8397a084024c00f24c6858f01456a3ed37f1b1121eec1abb
[INFO] running `Command { std: "docker" "start" "-a" "30103ca99d252acc8397a084024c00f24c6858f01456a3ed37f1b1121eec1abb", kill_on_drop: false }`
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking pcm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |     for i in 0..11 { //Mp3 sync word which is 1111_1111_1111
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/lib.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |     for i in 0..11 { //Mp3 sync word which is 1111_1111_1111
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rate` and `length` are never read
[INFO] [stdout]    --> src/lib.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct NoteFrequencyParams {
[INFO] [stdout]     |            ------------------- fields in this struct
[INFO] [stdout] 110 |     rate: f64,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 111 |     length: f64,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NoteFrequencyParams` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ORIGIN_NOTE_LITERA` is never used
[INFO] [stdout]    --> src/lib.rs:117:7
[INFO] [stdout]     |
[INFO] [stdout] 117 | const ORIGIN_NOTE_LITERA: NoteLitera = NoteLitera::A;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ORIGIN_NOTE_VALUE` is never used
[INFO] [stdout]    --> src/lib.rs:119:7
[INFO] [stdout]     |
[INFO] [stdout] 119 | const ORIGIN_NOTE_VALUE: u8 = 0;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rate` and `length` are never read
[INFO] [stdout]    --> src/lib.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct NoteFrequencyParams {
[INFO] [stdout]     |            ------------------- fields in this struct
[INFO] [stdout] 110 |     rate: f64,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 111 |     length: f64,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NoteFrequencyParams` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ORIGIN_NOTE_LITERA` is never used
[INFO] [stdout]    --> src/lib.rs:117:7
[INFO] [stdout]     |
[INFO] [stdout] 117 | const ORIGIN_NOTE_LITERA: NoteLitera = NoteLitera::A;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ORIGIN_NOTE_VALUE` is never used
[INFO] [stdout]    --> src/lib.rs:119:7
[INFO] [stdout]     |
[INFO] [stdout] 119 | const ORIGIN_NOTE_VALUE: u8 = 0;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `NoteLitera`, `NoteMusicalNotation`, `write_to_mp3`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     write_to_mp3,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     NoteMusicalNotation, 
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     NoteLitera
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `NoteLitera`, `NoteMusicalNotation`, `write_to_mp3`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     write_to_mp3,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     NoteMusicalNotation, 
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     NoteLitera
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "30103ca99d252acc8397a084024c00f24c6858f01456a3ed37f1b1121eec1abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30103ca99d252acc8397a084024c00f24c6858f01456a3ed37f1b1121eec1abb", kill_on_drop: false }`
[INFO] [stdout] 30103ca99d252acc8397a084024c00f24c6858f01456a3ed37f1b1121eec1abb
[INFO] checking DaniilMarch/pcm against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDaniilMarch%2Fpcm" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DaniilMarch/pcm on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DaniilMarch/pcm
[INFO] finished tweaking git repo https://github.com/DaniilMarch/pcm
[INFO] tweaked toml for git repo https://github.com/DaniilMarch/pcm written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/DaniilMarch/pcm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdcf6140e4c0fff62a117be4acdd90110af85794616d7a7ac5f514e7ab08e787
[INFO] running `Command { std: "docker" "start" "-a" "fdcf6140e4c0fff62a117be4acdd90110af85794616d7a7ac5f514e7ab08e787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdcf6140e4c0fff62a117be4acdd90110af85794616d7a7ac5f514e7ab08e787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdcf6140e4c0fff62a117be4acdd90110af85794616d7a7ac5f514e7ab08e787", kill_on_drop: false }`
[INFO] [stdout] fdcf6140e4c0fff62a117be4acdd90110af85794616d7a7ac5f514e7ab08e787
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddf859bc3be8b6ac23c0c77c3d0ed70774544de253acdaf32df6b433f82f3db0
[INFO] running `Command { std: "docker" "start" "-a" "ddf859bc3be8b6ac23c0c77c3d0ed70774544de253acdaf32df6b433f82f3db0", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.5/src/exec.rs:848:13
[INFO] [stdout]     |
[INFO] [stdout] 848 | /             match dfa::Fsm::reverse(
[INFO] [stdout] 849 | |                 &self.ro.dfa_reverse,
[INFO] [stdout] 850 | |                 self.cache.value(),
[INFO] [stdout] 851 | |                 false,
[INFO] [stdout] ...   |
[INFO] [stdout] 862 | |                 Quit => return Some(Quit),
[INFO] [stdout] 863 | |             };
[INFO] [stdout]     | |_____________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ddf859bc3be8b6ac23c0c77c3d0ed70774544de253acdaf32df6b433f82f3db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf859bc3be8b6ac23c0c77c3d0ed70774544de253acdaf32df6b433f82f3db0", kill_on_drop: false }`
[INFO] [stdout] ddf859bc3be8b6ac23c0c77c3d0ed70774544de253acdaf32df6b433f82f3db0