[INFO] fetching crate unthbuf 1.0.0... [INFO] checking unthbuf-1.0.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] extracting crate unthbuf 1.0.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate unthbuf 1.0.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate unthbuf 1.0.0 [INFO] finished tweaking crates.io crate unthbuf 1.0.0 [INFO] tweaked toml for crates.io crate unthbuf 1.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 16 packages to latest compatible versions [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cf6b0bbbf6cedc80fb6ea770e2e7ccd3c1860a806e95cc567bf2abfebccfb6e5 [INFO] running `Command { std: "docker" "start" "-a" "cf6b0bbbf6cedc80fb6ea770e2e7ccd3c1860a806e95cc567bf2abfebccfb6e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf6b0bbbf6cedc80fb6ea770e2e7ccd3c1860a806e95cc567bf2abfebccfb6e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf6b0bbbf6cedc80fb6ea770e2e7ccd3c1860a806e95cc567bf2abfebccfb6e5", kill_on_drop: false }` [INFO] [stdout] cf6b0bbbf6cedc80fb6ea770e2e7ccd3c1860a806e95cc567bf2abfebccfb6e5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1f5847a4c7861ca6836ab1a5b719d9b0bfddca06b6e92cef7ea2afa742ae243b [INFO] running `Command { std: "docker" "start" "-a" "1f5847a4c7861ca6836ab1a5b719d9b0bfddca06b6e92cef7ea2afa742ae243b", kill_on_drop: false }` [INFO] [stderr] Checking unthbuf v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::prelude::*` [INFO] [stdout] --> src/tests.rs:126:9 [INFO] [stdout] | [INFO] [stdout] 126 | use rand::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rng` [INFO] [stdout] --> src/tests.rs:125:17 [INFO] [stdout] | [INFO] [stdout] 125 | fn test_indices(rng: &mut rand::prelude::StdRng) -> Vec { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_rng` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tests.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 127 | let mut indices: Vec = (0..ITERATIONS).collect(); [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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s [INFO] running `Command { std: "docker" "inspect" "1f5847a4c7861ca6836ab1a5b719d9b0bfddca06b6e92cef7ea2afa742ae243b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f5847a4c7861ca6836ab1a5b719d9b0bfddca06b6e92cef7ea2afa742ae243b", kill_on_drop: false }` [INFO] [stdout] 1f5847a4c7861ca6836ab1a5b719d9b0bfddca06b6e92cef7ea2afa742ae243b