[INFO] crate rusty-x 0.1.75 is already in cache
[INFO] extracting crate rusty-x 0.1.75 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/rusty-x/0.1.75
[INFO] extracting crate rusty-x 0.1.75 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/rusty-x/0.1.75
[INFO] validating manifest of rusty-x-0.1.75 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rusty-x-0.1.75 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rusty-x-0.1.75
[INFO] finished frobbing rusty-x-0.1.75
[INFO] frobbed toml for rusty-x-0.1.75 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/rusty-x/0.1.75/Cargo.toml
[INFO] started frobbing rusty-x-0.1.75
[INFO] finished frobbing rusty-x-0.1.75
[INFO] frobbed toml for rusty-x-0.1.75 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/rusty-x/0.1.75/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rusty-x-0.1.75 against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-4/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/rusty-x/0.1.75:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 42916b63484a0661a9793211ac2910d08f73ed2099bf11ec236826c7f5975cdf
[INFO] running `"docker" "start" "-a" "42916b63484a0661a9793211ac2910d08f73ed2099bf11ec236826c7f5975cdf"`
[INFO] [stderr]    Compiling bindgen v0.50.0
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking pipeline v0.5.0
[INFO] [stderr]     Checking fuzzy-matcher v0.2.1
[INFO] [stderr]    Compiling ansi_colours v1.0.1
[INFO] [stderr]    Compiling curl-sys v0.4.21
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]     Checking tuikit v0.2.9
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]     Checking bincode v1.1.4
[INFO] [stderr]     Checking plist v0.4.2
[INFO] [stderr]     Checking markdown v0.2.0
[INFO] [stderr]     Checking console v0.6.2
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking skim v0.6.8
[INFO] [stderr]    Compiling onig_sys v69.2.0
[INFO] [stderr]     Checking onig v5.0.0
[INFO] [stderr]     Checking syntect v3.2.1
[INFO] [stderr]     Checking git2 v0.7.5
[INFO] [stderr]     Checking prettyprint v0.3.0
[INFO] [stderr]     Checking rusty-x v0.1.75 (/opt/crater/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 12s
[INFO] running `"docker" "inspect" "42916b63484a0661a9793211ac2910d08f73ed2099bf11ec236826c7f5975cdf"`
[INFO] running `"docker" "rm" "-f" "42916b63484a0661a9793211ac2910d08f73ed2099bf11ec236826c7f5975cdf"`
[INFO] [stdout] 42916b63484a0661a9793211ac2910d08f73ed2099bf11ec236826c7f5975cdf