[INFO] crate rusty-x 0.1.75 is already in cache
[INFO] checking rusty-x-0.1.75 against master#2da942f32802c8233a09744024dfbc34431adf65 for pr-66963
[INFO] extracting crate rusty-x 0.1.75 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rusty-x 0.1.75 on toolchain 2da942f32802c8233a09744024dfbc34431adf65
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "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-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "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" "+2da942f32802c8233a09744024dfbc34431adf65" "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] 2f5c51da1123884169a48ec16dcf5b8f63f688c45d8c34872eeb1a9eb10a3367
[INFO] running `"docker" "start" "-a" "2f5c51da1123884169a48ec16dcf5b8f63f688c45d8c34872eeb1a9eb10a3367"`
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]     Checking fuzzy-matcher v0.2.2
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.24
[INFO] [stderr]    Compiling libssh2-sys v0.2.13
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]    Compiling ansi_colours v1.0.1
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking bincode v1.2.0
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking plist v0.4.2
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking console v0.6.2
[INFO] [stderr]     Checking markdown v0.2.0
[INFO] [stderr]     Checking tuikit v0.2.9
[INFO] [stderr]     Checking skim v0.6.9
[INFO] [stderr]    Compiling onig_sys v69.2.0
[INFO] [stderr]     Checking onig v5.0.0
[INFO] [stderr]     Checking syntect v3.3.0
[INFO] [stderr]     Checking git2 v0.7.5
[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 50.65s
[INFO] running `"docker" "inspect" "2f5c51da1123884169a48ec16dcf5b8f63f688c45d8c34872eeb1a9eb10a3367"`
[INFO] running `"docker" "rm" "-f" "2f5c51da1123884169a48ec16dcf5b8f63f688c45d8c34872eeb1a9eb10a3367"`
[INFO] [stdout] 2f5c51da1123884169a48ec16dcf5b8f63f688c45d8c34872eeb1a9eb10a3367