[INFO] cloning repository https://github.com/davisschenk/rasp-leds-v2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davisschenk/rasp-leds-v2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavisschenk%2Frasp-leds-v2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavisschenk%2Frasp-leds-v2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e1b32ea9e8c7fe97426fdb4c4684b33a7ed3457
[INFO] checking davisschenk/rasp-leds-v2 against master#1ab98933fa75d72e882b86feac1a0be3a5b02cb0 for pr-83850
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavisschenk%2Frasp-leds-v2" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davisschenk/rasp-leds-v2 on toolchain 1ab98933fa75d72e882b86feac1a0be3a5b02cb0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1ab98933fa75d72e882b86feac1a0be3a5b02cb0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davisschenk/rasp-leds-v2
[INFO] finished tweaking git repo https://github.com/davisschenk/rasp-leds-v2
[INFO] tweaked toml for git repo https://github.com/davisschenk/rasp-leds-v2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1ab98933fa75d72e882b86feac1a0be3a5b02cb0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/ramsayleung/rspotify`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1ab98933fa75d72e882b86feac1a0be3a5b02cb0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+1ab98933fa75d72e882b86feac1a0be3a5b02cb0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43d15a4bc6d52b0ff46e44df3b0381e3d7f9837018195f9d84731a82aa5aad18
[INFO] running `Command { std: "docker" "start" "-a" "43d15a4bc6d52b0ff46e44df3b0381e3d7f9837018195f9d84731a82aa5aad18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43d15a4bc6d52b0ff46e44df3b0381e3d7f9837018195f9d84731a82aa5aad18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43d15a4bc6d52b0ff46e44df3b0381e3d7f9837018195f9d84731a82aa5aad18", kill_on_drop: false }`
[INFO] [stdout] 43d15a4bc6d52b0ff46e44df3b0381e3d7f9837018195f9d84731a82aa5aad18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+1ab98933fa75d72e882b86feac1a0be3a5b02cb0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5feb655b11e289e1a33731a7da21f5aabdef856f792866dc59205a6516b3524f
[INFO] running `Command { std: "docker" "start" "-a" "5feb655b11e289e1a33731a7da21f5aabdef856f792866dc59205a6516b3524f", kill_on_drop: false }`
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[INFO] [stderr]    Compiling enum_dispatch v0.3.8
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[INFO] [stderr]    Compiling devise v0.3.1
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]    Compiling pear v0.2.3
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.5
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]    Compiling rocket_http v0.5.0-rc.2
[INFO] [stderr]     Checking xkb v0.2.1
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking tokio-stream v0.1.9
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-rc.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking ubyte v0.10.2
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking cookie_store v0.15.1
[INFO] [stderr]     Checking rspotify-model v0.11.5 (https://github.com/ramsayleung/rspotify#cc4c45a1)
[INFO] [stderr]     Checking ureq v2.4.0
[INFO] [stderr]     Checking rspotify-http v0.11.5 (https://github.com/ramsayleung/rspotify#cc4c45a1)
[INFO] [stderr]     Checking rspotify v0.11.5 (https://github.com/ramsayleung/rspotify#cc4c45a1)
[INFO] [stderr]     Checking rasp-leds-hal v0.1.0 (/opt/rustwide/workdir/rasp-leds)
[INFO] [stderr]     Checking rasp-leds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:51:15
[INFO] [stdout]    |
[INFO] [stdout] 51 |     if let Ok(mut spotify) = client.lock() {
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:51:15
[INFO] [stdout]    |
[INFO] [stdout] 51 |     if let Ok(mut spotify) = client.lock() {
[INFO] [stdout]    |               ----^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let mut spotify = AuthCodeSpotify::with_config(creds, oauth, config);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |     let mut spotify = AuthCodeSpotify::with_config(creds, oauth, config);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `Command { std: "docker" "inspect" "5feb655b11e289e1a33731a7da21f5aabdef856f792866dc59205a6516b3524f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5feb655b11e289e1a33731a7da21f5aabdef856f792866dc59205a6516b3524f", kill_on_drop: false }`
[INFO] [stdout] 5feb655b11e289e1a33731a7da21f5aabdef856f792866dc59205a6516b3524f