[INFO] fetching crate x-923 0.1.2... [INFO] checking x-923-0.1.2 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585 [INFO] extracting crate x-923 0.1.2 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate x-923 0.1.2 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate x-923 0.1.2 [INFO] finished tweaking crates.io crate x-923 0.1.2 [INFO] tweaked toml for crates.io crate x-923 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] afcf02c24569ef0136e024eb678d9909a0ac83ca559e696f21e0a0c61e38e1eb [INFO] running `Command { std: "docker" "start" "-a" "afcf02c24569ef0136e024eb678d9909a0ac83ca559e696f21e0a0c61e38e1eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "afcf02c24569ef0136e024eb678d9909a0ac83ca559e696f21e0a0c61e38e1eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "afcf02c24569ef0136e024eb678d9909a0ac83ca559e696f21e0a0c61e38e1eb", kill_on_drop: false }` [INFO] [stdout] afcf02c24569ef0136e024eb678d9909a0ac83ca559e696f21e0a0c61e38e1eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] bafba567fd2bc4f41bd89fd6eacbb92fdfae453a74a77b7866e3344c96a9bcfb [INFO] running `Command { std: "docker" "start" "-a" "bafba567fd2bc4f41bd89fd6eacbb92fdfae453a74a77b7866e3344c96a9bcfb", kill_on_drop: false }` [INFO] [stderr] Checking x-923 v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn pad_buffer(mut buffer: &mut Vec, block_size: u8) { [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/lib.rs:31:22 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn un_pad_buffer(mut buffer: &mut Vec) { [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/lib.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn pad_buffer(mut buffer: &mut Vec, block_size: u8) { [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/lib.rs:31:22 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn un_pad_buffer(mut buffer: &mut Vec) { [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 0.60s [INFO] running `Command { std: "docker" "inspect" "bafba567fd2bc4f41bd89fd6eacbb92fdfae453a74a77b7866e3344c96a9bcfb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bafba567fd2bc4f41bd89fd6eacbb92fdfae453a74a77b7866e3344c96a9bcfb", kill_on_drop: false }` [INFO] [stdout] bafba567fd2bc4f41bd89fd6eacbb92fdfae453a74a77b7866e3344c96a9bcfb