[INFO] cloning repository https://github.com/Bronzdragon/perceptron-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bronzdragon/perceptron-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBronzdragon%2Fperceptron-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBronzdragon%2Fperceptron-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3d21af4c354c8ff56ff96fc92efe0dc49a315382 [INFO] checking Bronzdragon/perceptron-rust 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%2FBronzdragon%2Fperceptron-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Bronzdragon/perceptron-rust [INFO] finished tweaking git repo https://github.com/Bronzdragon/perceptron-rust [INFO] tweaked toml for git repo https://github.com/Bronzdragon/perceptron-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Bronzdragon/perceptron-rust 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/Bronzdragon/perceptron-rust 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d057f6f8597e03b1d223468041c78ab9c80090640b1abe650aaa7dc60b16bdd5 [INFO] running `Command { std: "docker" "start" "-a" "d057f6f8597e03b1d223468041c78ab9c80090640b1abe650aaa7dc60b16bdd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d057f6f8597e03b1d223468041c78ab9c80090640b1abe650aaa7dc60b16bdd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d057f6f8597e03b1d223468041c78ab9c80090640b1abe650aaa7dc60b16bdd5", kill_on_drop: false }` [INFO] [stdout] d057f6f8597e03b1d223468041c78ab9c80090640b1abe650aaa7dc60b16bdd5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e6f6ff0352c1c3a92cb7b7b724c535e43ddeb58a5f931c4ab95a8bc89f53eb37 [INFO] running `Command { std: "docker" "start" "-a" "e6f6ff0352c1c3a92cb7b7b724c535e43ddeb58a5f931c4ab95a8bc89f53eb37", kill_on_drop: false }` [INFO] [stderr] Compiling target-lexicon v0.12.15 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling indoc v2.0.5 [INFO] [stderr] Checking unindent v0.2.3 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling pyo3-build-config v0.22.2 [INFO] [stderr] Compiling syn v2.0.72 [INFO] [stderr] Compiling pyo3-macros-backend v0.22.2 [INFO] [stderr] Compiling pyo3-ffi v0.22.2 [INFO] [stderr] Compiling pyo3 v0.22.2 [INFO] [stderr] Compiling pyo3-macros v0.22.2 [INFO] [stderr] Checking perceptron-rust v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/lib.rs:186:69 [INFO] [stdout] | [INFO] [stdout] 186 | fn train(&mut self, iterations: u32, should_normalize: bool) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `perceptron-rust` (lib test) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/lib.rs:186:69 [INFO] [stdout] | [INFO] [stdout] 186 | fn train(&mut self, iterations: u32, should_normalize: bool) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `perceptron-rust` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "e6f6ff0352c1c3a92cb7b7b724c535e43ddeb58a5f931c4ab95a8bc89f53eb37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6f6ff0352c1c3a92cb7b7b724c535e43ddeb58a5f931c4ab95a8bc89f53eb37", kill_on_drop: false }` [INFO] [stdout] e6f6ff0352c1c3a92cb7b7b724c535e43ddeb58a5f931c4ab95a8bc89f53eb37