[INFO] cloning repository tarkah/karaoke-rs
[INFO] running `"git" "clone" "--bare" "git://github.com/tarkah/karaoke-rs.git" "work/cache/sources/gh/tarkah/karaoke-rs"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/tarkah/karaoke-rs'...
[INFO] running `"git" "clone" "work/cache/sources/gh/tarkah/karaoke-rs" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/tarkah/karaoke-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/tarkah/karaoke-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tarkah/karaoke-rs" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/tarkah/karaoke-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/tarkah/karaoke-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 60a9609ff429cbf287b5288a1c31f9e417a9b9ec
[INFO] sha for GitHub repo tarkah/karaoke-rs: 60a9609ff429cbf287b5288a1c31f9e417a9b9ec
[INFO] validating manifest of tarkah/karaoke-rs on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tarkah/karaoke-rs on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tarkah/karaoke-rs
[INFO] finished frobbing tarkah/karaoke-rs
[INFO] frobbed toml for tarkah/karaoke-rs written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/tarkah/karaoke-rs/Cargo.toml
[INFO] started frobbing tarkah/karaoke-rs
[INFO] finished frobbing tarkah/karaoke-rs
[INFO] frobbed toml for tarkah/karaoke-rs written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/tarkah/karaoke-rs/Cargo.toml
[INFO] crate tarkah/karaoke-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded copyless v0.1.4
[INFO] [stderr]   Downloaded cdg_renderer v0.1.1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking tarkah/karaoke-rs against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-1/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/tarkah/karaoke-rs:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 89aa4c35fe2b7b4bbcef486b4efe8dbb67aec4345d41e742358165226f00fa31
[INFO] running `"docker" "start" "-a" "89aa4c35fe2b7b4bbcef486b4efe8dbb67aec4345d41e742358165226f00fa31"`
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking copyless v0.1.4
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking cdg v0.1.0
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking socket2 v0.3.9
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking brotli-sys v0.3.2
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[INFO] [stderr]    Compiling glium v0.25.0
[INFO] [stderr]    Compiling rust-embed-impl v4.4.0
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[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking parking_lot_core v0.5.0
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]    Compiling v_escape_derive v0.5.3
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling actix-web-codegen v0.1.2
[INFO] [stderr]     Checking chrono v0.4.6
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[INFO] [stderr]    Compiling derive_more v0.15.0
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[INFO] [stderr]    Compiling pest_meta v2.1.1
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[INFO] [stderr]    Compiling v_escape v0.7.2
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[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking h2 v0.1.24
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]    Compiling v_htmlescape v0.4.3
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[INFO] [stderr]    Compiling darling_macro v0.9.0
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[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking rustbreak v2.0.0-rc3
[INFO] [stderr]     Checking actix-server v0.5.1
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]     Checking trust-dns-resolver v0.11.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking cdg_renderer v0.1.1
[INFO] [stderr]     Checking actix-connect v0.2.0
[INFO] [stderr]     Checking winit v0.19.1
[INFO] [stderr]     Checking actix-http v0.2.4
[INFO] [stderr]     Checking id3 v0.3.0
[INFO] [stderr]     Checking glutin v0.21.0
[INFO] [stderr]     Checking awc v0.2.1
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[INFO] [stderr]     Checking actix-files v0.1.2
[INFO] [stderr]     Checking rodio v0.9.0
[INFO] [stderr]     Checking karaoke-rs v0.6.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut db: CollectionDB;
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/collection.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut db: CollectionDB;
[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 3m 41s
[INFO] running `"docker" "inspect" "89aa4c35fe2b7b4bbcef486b4efe8dbb67aec4345d41e742358165226f00fa31"`
[INFO] running `"docker" "rm" "-f" "89aa4c35fe2b7b4bbcef486b4efe8dbb67aec4345d41e742358165226f00fa31"`
[INFO] [stdout] 89aa4c35fe2b7b4bbcef486b4efe8dbb67aec4345d41e742358165226f00fa31