[INFO] updating cached repository https://github.com/samrayleung/rspotify
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/samrayleung/rspotify
[INFO] [stderr]    fa0408d..8884a19  master               -> master
[INFO] [stderr]  * [new branch]      ramsay/update-to-0.7 -> ramsay/update-to-0.7
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8884a19a2706660f91696a1a2f35088ec1da9162
[INFO] checking samrayleung/rspotify against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamrayleung%2Frspotify" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samrayleung/rspotify on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/samrayleung/rspotify
[INFO] finished tweaking git repo https://github.com/samrayleung/rspotify
[INFO] tweaked toml for git repo https://github.com/samrayleung/rspotify written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4518a656adf848c233e22562faa257e6679e0be8ae2f09a51b4edd7be7700b70
[INFO] running `"docker" "start" "-a" "4518a656adf848c233e22562faa257e6679e0be8ae2f09a51b4edd7be7700b70"`
[INFO] [stderr]     Checking webbrowser v0.5.2
[INFO] [stderr]     Checking random v0.12.2
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]     Checking reqwest v0.9.17
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking rspotify v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test_with_oauth.rs:661:17
[INFO] [stderr]     |
[INFO] [stderr] 661 |             let mut uris = vec!["spotify:track:4iV5W9uYEdYUVa79Axb7Rh".to_owned()];
[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]    --> tests/test_with_oauth.rs:824:17
[INFO] [stderr]     |
[INFO] [stderr] 824 |             let mut playlist_name = "A New Playlist-update";
[INFO] [stderr]     |                 ----^^^^^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/user_playlist_change_detail.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |             let mut playlist_name = "A New Playlist-update";
[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]   --> examples/start_playback.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |             let mut uris = vec!["spotify:track:4iV5W9uYEdYUVa79Axb7Rh".to_owned()];
[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 4m 34s
[INFO] running `"docker" "inspect" "4518a656adf848c233e22562faa257e6679e0be8ae2f09a51b4edd7be7700b70"`
[INFO] running `"docker" "rm" "-f" "4518a656adf848c233e22562faa257e6679e0be8ae2f09a51b4edd7be7700b70"`
[INFO] [stdout] 4518a656adf848c233e22562faa257e6679e0be8ae2f09a51b4edd7be7700b70