[INFO] crate kelvin 0.3.0 is already in cache
[INFO] checking kelvin-0.3.0 against master#0d2817a439c2ad9fe343f6347eb6d90947893363 for pr-67531
[INFO] extracting crate kelvin 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate kelvin 0.3.0 on toolchain 0d2817a439c2ad9fe343f6347eb6d90947893363
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate kelvin 0.3.0
[INFO] finished tweaking crates.io crate kelvin 0.3.0
[INFO] tweaked toml for crates.io crate kelvin 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3e42a22ca2ae5d3e1d4329dace6935a70f5252f3c67906fcba129514bce6a7a8
[INFO] running `"docker" "start" "-a" "3e42a22ca2ae5d3e1d4329dace6935a70f5252f3c67906fcba129514bce6a7a8"`
[INFO] [stderr]     Checking seahash v3.0.6
[INFO] [stderr]     Checking stable-heap v0.1.0
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stderr]     Checking appendix v0.1.3
[INFO] [stderr]     Checking cache v0.2.0
[INFO] [stderr]     Checking bytehash v0.1.0
[INFO] [stderr]     Checking kelvin v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/structures/hamt.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/structures/hamt.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `"docker" "inspect" "3e42a22ca2ae5d3e1d4329dace6935a70f5252f3c67906fcba129514bce6a7a8"`
[INFO] running `"docker" "rm" "-f" "3e42a22ca2ae5d3e1d4329dace6935a70f5252f3c67906fcba129514bce6a7a8"`
[INFO] [stdout] 3e42a22ca2ae5d3e1d4329dace6935a70f5252f3c67906fcba129514bce6a7a8