[INFO] updating cached repository https://github.com/jtbeckha/mp3v0fs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6ada8f06118beab4e0a5c4968302b49287ab2563
[INFO] checking jtbeckha/mp3v0fs against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtbeckha%2Fmp3v0fs" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtbeckha/mp3v0fs on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jtbeckha/mp3v0fs
[INFO] finished tweaking git repo https://github.com/jtbeckha/mp3v0fs
[INFO] tweaked toml for git repo https://github.com/jtbeckha/mp3v0fs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/jtbeckha/mp3v0fs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] e81138a191c06d0512edfc68bc67758db1a547c1de4d1970d994bff1fb8be0bc
[INFO] running `"docker" "start" "-a" "e81138a191c06d0512edfc68bc67758db1a547c1de4d1970d994bff1fb8be0bc"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]    Compiling lame-sys v0.1.2
[INFO] [stderr]     Checking fuse-abi v0.4.0-dev (https://github.com/zargony/fuse-rs.git#42e29d96)
[INFO] [stderr]     Checking claxon v0.4.2 (https://github.com/jtbeckha/claxon.git#38ec00b5)
[INFO] [stderr]    Compiling fuse-sys v0.4.0-dev (https://github.com/zargony/fuse-rs.git#42e29d96)
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling simplemad_sys v0.5.0
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking flate2 v1.0.12
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking fuse v0.4.0-dev (https://github.com/zargony/fuse-rs.git#42e29d96)
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking fuse_mt v0.5.0
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking simplemad v0.9.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]     Checking id3 v0.3.0
[INFO] [stderr]     Checking mp3v0fs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: constant item is never used: `MP3`
[INFO] [stderr]   --> src/mp3v0fs.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | const MP3: &'static str = "mp3";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_extension`
[INFO] [stderr]    --> src/mp3v0fs.rs:294:4
[INFO] [stderr]     |
[INFO] [stderr] 294 | fn parse_extension(path: &str) -> String {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.22s
[INFO] running `"docker" "inspect" "e81138a191c06d0512edfc68bc67758db1a547c1de4d1970d994bff1fb8be0bc"`
[INFO] running `"docker" "rm" "-f" "e81138a191c06d0512edfc68bc67758db1a547c1de4d1970d994bff1fb8be0bc"`
[INFO] [stdout] e81138a191c06d0512edfc68bc67758db1a547c1de4d1970d994bff1fb8be0bc