[INFO] cloning repository https://github.com/judgeou/maze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/judgeou/maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjudgeou%2Fmaze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjudgeou%2Fmaze'...
[INFO] [stderr] fatal: write error: No space left on device
[INFO] [stderr] fatal: index-pack failed
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/judgeou/maze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/judgeou/maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjudgeou%2Fmaze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjudgeou%2Fmaze'...
[INFO] [stderr] fatal: write error: No space left on device
[INFO] [stderr] fatal: index-pack failed
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/judgeou/maze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/judgeou/maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjudgeou%2Fmaze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjudgeou%2Fmaze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4db4f7b86019f131bc245cd94f720412f5be9be2
[INFO] checking judgeou/maze against master#b657dc555b1ecf837cc4ea471fbae6a731529d55 for pr-113457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjudgeou%2Fmaze" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/judgeou/maze on toolchain b657dc555b1ecf837cc4ea471fbae6a731529d55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/judgeou/maze
[INFO] finished tweaking git repo https://github.com/judgeou/maze
[INFO] tweaked toml for git repo https://github.com/judgeou/maze written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/judgeou/maze already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lab v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61fdfc8d316b48d9d7b6b202a11db24429bb958e37b94f4fdc33c7d529867a84
[INFO] running `Command { std: "docker" "start" "-a" "61fdfc8d316b48d9d7b6b202a11db24429bb958e37b94f4fdc33c7d529867a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61fdfc8d316b48d9d7b6b202a11db24429bb958e37b94f4fdc33c7d529867a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61fdfc8d316b48d9d7b6b202a11db24429bb958e37b94f4fdc33c7d529867a84", kill_on_drop: false }`
[INFO] [stdout] 61fdfc8d316b48d9d7b6b202a11db24429bb958e37b94f4fdc33c7d529867a84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+b657dc555b1ecf837cc4ea471fbae6a731529d55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bb38af714a47de6dbc3a5548a2aeacf868877ef707b1d9e3da2ae2cdc9b227d
[INFO] running `Command { std: "docker" "start" "-a" "7bb38af714a47de6dbc3a5548a2aeacf868877ef707b1d9e3da2ae2cdc9b227d", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.58
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bumpalo v3.1.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.58
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking lab v0.7.2
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.50
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]     Checking image v0.22.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.58
[INFO] [stderr]    Compiling web-sys v0.3.35
[INFO] [stderr]     Checking js-sys v0.3.35
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking wasm-bindgen-futures v0.3.27
[INFO] [stderr]     Checking wasm-bindgen-test v0.2.50
[INFO] [stderr]     Checking rust-webpack-template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:265:3
[INFO] [stdout]     |
[INFO] [stdout] 265 |   ((delta_l * delta_l) + (delta_a * delta_a) + (delta_b * delta_b))
[INFO] [stdout]     |   ^                                                               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 265 -   ((delta_l * delta_l) + (delta_a * delta_a) + (delta_b * delta_b))
[INFO] [stdout] 265 +   (delta_l * delta_l) + (delta_a * delta_a) + (delta_b * delta_b)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:265:3
[INFO] [stdout]     |
[INFO] [stdout] 265 |   ((delta_l * delta_l) + (delta_a * delta_a) + (delta_b * delta_b))
[INFO] [stdout]     |   ^                                                               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 265 -   ((delta_l * delta_l) + (delta_a * delta_a) + (delta_b * delta_b))
[INFO] [stdout] 265 +   (delta_l * delta_l) + (delta_a * delta_a) + (delta_b * delta_b)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `log_i32` is never used
[INFO] [stdout]   --> src/lib.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn log_i32 (s: i32) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `log_i32` is never used
[INFO] [stdout]   --> src/lib.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn log_i32 (s: i32) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `color_diff_rgb` is never used
[INFO] [stdout]    --> src/lib.rs:252:4
[INFO] [stdout]     |
[INFO] [stdout] 252 | fn color_diff_rgb (walk_color: &[u8], stop_color: &[u8]) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `color_diff_rgb` is never used
[INFO] [stdout]    --> src/lib.rs:252:4
[INFO] [stdout]     |
[INFO] [stdout] 252 | fn color_diff_rgb (walk_color: &[u8], stop_color: &[u8]) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "7bb38af714a47de6dbc3a5548a2aeacf868877ef707b1d9e3da2ae2cdc9b227d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb38af714a47de6dbc3a5548a2aeacf868877ef707b1d9e3da2ae2cdc9b227d", kill_on_drop: false }`
[INFO] [stdout] 7bb38af714a47de6dbc3a5548a2aeacf868877ef707b1d9e3da2ae2cdc9b227d