[INFO] fetching crate x-923 0.1.2... [INFO] checking x-923-0.1.2 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322 [INFO] extracting crate x-923 0.1.2 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate x-923 0.1.2 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9ea281653ac86aae0f2b3d4ad9eaa73d4867fff6f4c82a2bcc1e8819d4e46209 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "9ea281653ac86aae0f2b3d4ad9eaa73d4867fff6f4c82a2bcc1e8819d4e46209", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9ea281653ac86aae0f2b3d4ad9eaa73d4867fff6f4c82a2bcc1e8819d4e46209", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ea281653ac86aae0f2b3d4ad9eaa73d4867fff6f4c82a2bcc1e8819d4e46209", kill_on_drop: false }` [INFO] [stdout] 9ea281653ac86aae0f2b3d4ad9eaa73d4867fff6f4c82a2bcc1e8819d4e46209 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0019425880a5d901d1619c20b609b79b2fd0415824b20069385934dab98ce8a8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0019425880a5d901d1619c20b609b79b2fd0415824b20069385934dab98ce8a8", 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: 2 warnings emitted [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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.49s [INFO] running `Command { std: "docker" "inspect" "0019425880a5d901d1619c20b609b79b2fd0415824b20069385934dab98ce8a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0019425880a5d901d1619c20b609b79b2fd0415824b20069385934dab98ce8a8", kill_on_drop: false }` [INFO] [stdout] 0019425880a5d901d1619c20b609b79b2fd0415824b20069385934dab98ce8a8