[INFO] fetching crate milcheck 0.1.2...
[INFO] checking milcheck-0.1.2 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate milcheck 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate milcheck 0.1.2 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate milcheck 0.1.2
[INFO] finished tweaking crates.io crate milcheck 0.1.2
[INFO] tweaked toml for crates.io crate milcheck 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate milcheck 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 15ab5624c6391c3736fb2dea0ea58ff48a4113cf681618d8f90cfdf74f144062
[INFO] running `"docker" "start" "-a" "15ab5624c6391c3736fb2dea0ea58ff48a4113cf681618d8f90cfdf74f144062"`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking serde v1.0.99
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking milcheck v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `input_handle`
[INFO] [stderr]   --> src/event.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     input_handle: JoinHandle<Result<(), Error>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `tick_handle`
[INFO] [stderr]   --> src/event.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     tick_handle: JoinHandle<Result<(), Error>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `finish`
[INFO] [stderr]   --> src/event.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn finish(self) -> Result<(), Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `input_handle`
[INFO] [stderr]   --> src/event.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     input_handle: JoinHandle<Result<(), Error>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `tick_handle`
[INFO] [stderr]   --> src/event.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     tick_handle: JoinHandle<Result<(), Error>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `finish`
[INFO] [stderr]   --> src/event.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn finish(self) -> Result<(), Error> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.87s
[INFO] running `"docker" "inspect" "15ab5624c6391c3736fb2dea0ea58ff48a4113cf681618d8f90cfdf74f144062"`
[INFO] running `"docker" "rm" "-f" "15ab5624c6391c3736fb2dea0ea58ff48a4113cf681618d8f90cfdf74f144062"`
[INFO] [stdout] 15ab5624c6391c3736fb2dea0ea58ff48a4113cf681618d8f90cfdf74f144062