[INFO] cloning repository https://github.com/jackxbritton/cord
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackxbritton/cord" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackxbritton%2Fcord", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackxbritton%2Fcord'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a55bd50c197d8261865e27440579195e43bb3535
[INFO] checking jackxbritton/cord against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackxbritton%2Fcord" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackxbritton/cord on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jackxbritton/cord
[INFO] finished tweaking git repo https://github.com/jackxbritton/cord
[INFO] tweaked toml for git repo https://github.com/jackxbritton/cord written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/jackxbritton/cord already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jack-sys v0.2.2
[INFO] [stderr]   Downloaded jack v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b1fc4933bf3bf45400b0696b54c9a892be747712102cf1791ae9077619a8631
[INFO] running `Command { std: "docker" "start" "-a" "1b1fc4933bf3bf45400b0696b54c9a892be747712102cf1791ae9077619a8631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b1fc4933bf3bf45400b0696b54c9a892be747712102cf1791ae9077619a8631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b1fc4933bf3bf45400b0696b54c9a892be747712102cf1791ae9077619a8631", kill_on_drop: false }`
[INFO] [stdout] 1b1fc4933bf3bf45400b0696b54c9a892be747712102cf1791ae9077619a8631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b5d4afaea263b2431d570aa0bad79ee5d39dd60484dd189029bc23d57ba9b1a
[INFO] running `Command { std: "docker" "start" "-a" "4b5d4afaea263b2431d570aa0bad79ee5d39dd60484dd189029bc23d57ba9b1a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking jack-sys v0.2.2
[INFO] [stderr]     Checking jack v0.7.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking cord v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `degrees`
[INFO] [stdout]    --> src/main.rs:301:29
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn transpose(&mut self, degrees: i32) {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_degrees`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `steps`
[INFO] [stdout]    --> src/main.rs:424:29
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 if let Some(steps) = self.tracks[*channel][*note as usize] {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_steps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]    --> src/main.rs:635:39
[INFO] [stdout]     |
[INFO] [stdout] 635 | ...                   .filter(|(note, notes)| notes.is_some())
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_note`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]    --> src/main.rs:654:39
[INFO] [stdout]     |
[INFO] [stdout] 654 | ...                   .filter(|(note, notes)| notes.is_some())
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_note`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `degrees`
[INFO] [stdout]    --> src/main.rs:301:29
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn transpose(&mut self, degrees: i32) {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_degrees`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `steps`
[INFO] [stdout]    --> src/main.rs:424:29
[INFO] [stdout]     |
[INFO] [stdout] 424 |                 if let Some(steps) = self.tracks[*channel][*note as usize] {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_steps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]    --> src/main.rs:635:39
[INFO] [stdout]     |
[INFO] [stdout] 635 | ...                   .filter(|(note, notes)| notes.is_some())
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_note`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `note`
[INFO] [stdout]    --> src/main.rs:654:39
[INFO] [stdout]     |
[INFO] [stdout] 654 | ...                   .filter(|(note, notes)| notes.is_some())
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_note`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.86s
[INFO] running `Command { std: "docker" "inspect" "4b5d4afaea263b2431d570aa0bad79ee5d39dd60484dd189029bc23d57ba9b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b5d4afaea263b2431d570aa0bad79ee5d39dd60484dd189029bc23d57ba9b1a", kill_on_drop: false }`
[INFO] [stdout] 4b5d4afaea263b2431d570aa0bad79ee5d39dd60484dd189029bc23d57ba9b1a