[INFO] fetching crate rusty-x 0.1.75...
[INFO] checking rusty-x-0.1.75 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate rusty-x 0.1.75 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rusty-x 0.1.75 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rusty-x 0.1.75
[INFO] finished tweaking crates.io crate rusty-x 0.1.75
[INFO] tweaked toml for crates.io crate rusty-x 0.1.75 written to /workspace/builds/worker-8/source/Cargo.toml
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 8a4a7ceaf7e6c4101a6c0323ac3a82085cebbda50f18d2d100f8392000771c31
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8a4a7ceaf7e6c4101a6c0323ac3a82085cebbda50f18d2d100f8392000771c31"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking fuzzy-matcher v0.2.1
[INFO] [stderr]     Checking shell-words v0.1.0
[INFO] [stderr]     Checking pipeline v0.5.0
[INFO] [stderr]    Compiling ansi_colours v1.0.1
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]     Checking libssh2-sys v0.2.12
[INFO] [stderr]     Checking curl-sys v0.4.23
[INFO] [stderr]     Checking tuikit v0.2.9
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking markdown v0.2.0
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking console v0.6.2
[INFO] [stderr]     Checking libgit2-sys v0.7.11
[INFO] [stderr]     Checking git2 v0.7.5
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling onig_sys v69.2.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]     Checking skim v0.6.9
[INFO] [stderr]     Checking onig v5.0.0
[INFO] [stderr]     Checking syntect v3.3.0
[INFO] [stderr]     Checking prettyprint v0.3.0
[INFO] [stderr]     Checking rusty-x v0.1.75 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]   --> src/x.rs:96:16
[INFO] [stderr]    |
[INFO] [stderr] 96 |         .map(|(count, entry, tags)| {
[INFO] [stderr]    |                ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/x.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut entries: Vec<fs::DirEntry> = fs::read_dir(&snippet_location.local)?
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]   --> src/x.rs:96:16
[INFO] [stderr]    |
[INFO] [stderr] 96 |         .map(|(count, entry, tags)| {
[INFO] [stderr]    |                ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/x.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut entries: Vec<fs::DirEntry> = fs::read_dir(&snippet_location.local)?
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `"docker" "inspect" "8a4a7ceaf7e6c4101a6c0323ac3a82085cebbda50f18d2d100f8392000771c31"`
[INFO] running `"docker" "rm" "-f" "8a4a7ceaf7e6c4101a6c0323ac3a82085cebbda50f18d2d100f8392000771c31"`
[INFO] [stdout] 8a4a7ceaf7e6c4101a6c0323ac3a82085cebbda50f18d2d100f8392000771c31