[INFO] cloning repository https://github.com/jswrenn/beep
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jswrenn/beep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fbeep"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fbeep'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cbf38e06405ab80b2a22d6dc1d10da7a5216152b
[INFO] checking jswrenn/beep against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fbeep" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jswrenn/beep on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jswrenn/beep
[INFO] finished tweaking git repo https://github.com/jswrenn/beep
[INFO] tweaked toml for git repo https://github.com/jswrenn/beep written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jswrenn/beep already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d0caa1eb23bafe6547b2aca76531fb69f21cc8d0e3d5b5a6fb02a3b4baa881c3
[INFO] running `"docker" "start" "-a" "d0caa1eb23bafe6547b2aca76531fb69f21cc8d0e3d5b5a6fb02a3b4baa881c3"`
[INFO] [stderr]    Compiling dimensioned v0.6.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking generic-array v0.5.1
[INFO] [stderr]     Checking beep v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `F`
[INFO] [stderr]   --> examples/song.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |   let F = Hertz::new(2673.0f64);
[INFO] [stderr]    |       ^ help: consider prefixing with an underscore: `_F`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name
[INFO] [stderr]   --> examples/song.rs:10:7
[INFO] [stderr]    |
[INFO] [stderr] 10 |   let C = Hertz::new(2093.0f64);
[INFO] [stderr]    |       ^ help: convert the identifier to snake case: `c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `D` should have a snake case name
[INFO] [stderr]   --> examples/song.rs:11:7
[INFO] [stderr]    |
[INFO] [stderr] 11 |   let D = Hertz::new(2349.0f64);
[INFO] [stderr]    |       ^ help: convert the identifier to snake case: `d`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name
[INFO] [stderr]   --> examples/song.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 |   let E = Hertz::new(2673.0f64);
[INFO] [stderr]    |       ^ help: convert the identifier to snake case: `e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `F` should have a snake case name
[INFO] [stderr]   --> examples/song.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |   let F = Hertz::new(2673.0f64);
[INFO] [stderr]    |       ^ help: convert the identifier to snake case: `f`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `G` should have a snake case name
[INFO] [stderr]   --> examples/song.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 |   let G = Hertz::new(3136.0f64);
[INFO] [stderr]    |       ^ help: convert the identifier to snake case: `g`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.11s
[INFO] running `"docker" "inspect" "d0caa1eb23bafe6547b2aca76531fb69f21cc8d0e3d5b5a6fb02a3b4baa881c3"`
[INFO] running `"docker" "rm" "-f" "d0caa1eb23bafe6547b2aca76531fb69f21cc8d0e3d5b5a6fb02a3b4baa881c3"`
[INFO] [stdout] d0caa1eb23bafe6547b2aca76531fb69f21cc8d0e3d5b5a6fb02a3b4baa881c3