[INFO] cloning repository https://github.com/hrrycx/littlewood-fractal [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hrrycx/littlewood-fractal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhrrycx%2Flittlewood-fractal", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhrrycx%2Flittlewood-fractal'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c4e9b6ba04fb79c06d10f04c2ce04cb6de056860 [INFO] checking hrrycx/littlewood-fractal against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhrrycx%2Flittlewood-fractal" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/hrrycx/littlewood-fractal [INFO] finished tweaking git repo https://github.com/hrrycx/littlewood-fractal [INFO] tweaked toml for git repo https://github.com/hrrycx/littlewood-fractal written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/hrrycx/littlewood-fractal on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/hrrycx/littlewood-fractal 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 41d3e7cb366ae9581c0d9ff015222a3f9b85fad9ff3b67dbd219e8de66d739d4 [INFO] running `Command { std: "docker" "start" "-a" "41d3e7cb366ae9581c0d9ff015222a3f9b85fad9ff3b67dbd219e8de66d739d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "41d3e7cb366ae9581c0d9ff015222a3f9b85fad9ff3b67dbd219e8de66d739d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41d3e7cb366ae9581c0d9ff015222a3f9b85fad9ff3b67dbd219e8de66d739d4", kill_on_drop: false }` [INFO] [stdout] 41d3e7cb366ae9581c0d9ff015222a3f9b85fad9ff3b67dbd219e8de66d739d4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ff774428f99e5555afd494e1cb156a0b724fabfcd1a27ec743521b51b8686beb [INFO] running `Command { std: "docker" "start" "-a" "ff774428f99e5555afd494e1cb156a0b724fabfcd1a27ec743521b51b8686beb", kill_on_drop: false }` [INFO] [stderr] Compiling memoffset v0.9.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.15 [INFO] [stderr] Compiling rayon-core v1.12.0 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling num-rational v0.4.1 [INFO] [stderr] Checking weezl v0.1.7 [INFO] [stderr] Checking half v2.2.1 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Checking fdeflate v0.3.0 [INFO] [stderr] Checking bytemuck v1.14.0 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Checking smallvec v1.11.1 [INFO] [stderr] Checking gif v0.12.0 [INFO] [stderr] Checking flume v0.11.0 [INFO] [stderr] Checking qoi v0.4.1 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking flate2 v1.0.27 [INFO] [stderr] Checking png v0.17.10 [INFO] [stderr] Checking rayon v1.8.0 [INFO] [stderr] Checking exr v1.71.0 [INFO] [stderr] Checking jpeg-decoder v0.3.0 [INFO] [stderr] Checking tiff v0.9.0 [INFO] [stderr] Checking image v0.24.7 [INFO] [stderr] Checking polyroots v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:33:27 [INFO] [stdout] | [INFO] [stdout] 33 | ... img.put_pixel(x.try_into().unwrap(), y.try_into().unwrap(), *Rgb::from_slice(&hsl::hsl_to_rgba((value_at_pixel / 2.) - 0.08, 1., va... [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:33:50 [INFO] [stdout] | [INFO] [stdout] 33 | ... img.put_pixel(x.try_into().unwrap(), y.try_into().unwrap(), *Rgb::from_slice(&hsl::hsl_to_rgba((value_at_pixel / 2.) - 0.08, 1., va... [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:33:27 [INFO] [stdout] | [INFO] [stdout] 33 | ... img.put_pixel(x.try_into().unwrap(), y.try_into().unwrap(), *Rgb::from_slice(&hsl::hsl_to_rgba((value_at_pixel / 2.) - 0.08, 1., va... [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:33:50 [INFO] [stdout] | [INFO] [stdout] 33 | ... img.put_pixel(x.try_into().unwrap(), y.try_into().unwrap(), *Rgb::from_slice(&hsl::hsl_to_rgba((value_at_pixel / 2.) - 0.08, 1., va... [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `polyroots` (bin "polyroots" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `polyroots` (bin "polyroots") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "ff774428f99e5555afd494e1cb156a0b724fabfcd1a27ec743521b51b8686beb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff774428f99e5555afd494e1cb156a0b724fabfcd1a27ec743521b51b8686beb", kill_on_drop: false }` [INFO] [stdout] ff774428f99e5555afd494e1cb156a0b724fabfcd1a27ec743521b51b8686beb