[INFO] fetching crate cgroups-rs 0.3.4...
[INFO] checking cgroups-rs-0.3.4 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate cgroups-rs 0.3.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cgroups-rs 0.3.4 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate cgroups-rs 0.3.4
[INFO] finished tweaking crates.io crate cgroups-rs 0.3.4
[INFO] tweaked toml for crates.io crate cgroups-rs 0.3.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding nix v0.25.1 (latest: v0.29.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0445fd2541c020bee8f6c9a17b6b577eb6bd70dfc94a36fbe8b3d4be0c4bd4a0
[INFO] running `Command { std: "docker" "start" "-a" "0445fd2541c020bee8f6c9a17b6b577eb6bd70dfc94a36fbe8b3d4be0c4bd4a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0445fd2541c020bee8f6c9a17b6b577eb6bd70dfc94a36fbe8b3d4be0c4bd4a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0445fd2541c020bee8f6c9a17b6b577eb6bd70dfc94a36fbe8b3d4be0c4bd4a0", kill_on_drop: false }`
[INFO] [stdout] 0445fd2541c020bee8f6c9a17b6b577eb6bd70dfc94a36fbe8b3d4be0c4bd4a0
[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" "-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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12f7999a9fcb799a3c0aa8c09465f91244b2eebdb7d18844fd35ca12d16303d0
[INFO] running `Command { std: "docker" "start" "-a" "12f7999a9fcb799a3c0aa8c09465f91244b2eebdb7d18844fd35ca12d16303d0", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking thiserror v1.0.63
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking cgroups-rs v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 225 |     pub trait CustomizedAttribute: ControllerInternal {
[INFO] [stdout]     |               ------------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 234 |         fn get(&self, key: &str) -> Result<String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 225 |     pub trait CustomizedAttribute: ControllerInternal {
[INFO] [stdout]     |               ------------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 234 |         fn get(&self, key: &str) -> Result<String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.56s
[INFO] running `Command { std: "docker" "inspect" "12f7999a9fcb799a3c0aa8c09465f91244b2eebdb7d18844fd35ca12d16303d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f7999a9fcb799a3c0aa8c09465f91244b2eebdb7d18844fd35ca12d16303d0", kill_on_drop: false }`
[INFO] [stdout] 12f7999a9fcb799a3c0aa8c09465f91244b2eebdb7d18844fd35ca12d16303d0