[INFO] crate stash 0.1.4 is already in cache
[INFO] checking stash-0.1.4 against master#eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc for pr-69560
[INFO] extracting crate stash 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stash 0.1.4 on toolchain eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate stash 0.1.4
[INFO] finished tweaking crates.io crate stash 0.1.4
[INFO] tweaked toml for crates.io crate stash 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate stash 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "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" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "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] a4f409d1fe2e3e7b65d0fcd0a057a827a52ed836d5e6e332ef52fa70c01e22a1
[INFO] running `"docker" "start" "-a" "a4f409d1fe2e3e7b65d0fcd0a057a827a52ed836d5e6e332ef52fa70c01e22a1"`
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]     Checking stash v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/unique_stash/mod.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> benches/unique_stash.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/unique_stash/mod.rs:25:26
[INFO] [stderr]    |
[INFO] [stderr] 25 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.18s
[INFO] running `"docker" "inspect" "a4f409d1fe2e3e7b65d0fcd0a057a827a52ed836d5e6e332ef52fa70c01e22a1"`
[INFO] running `"docker" "rm" "-f" "a4f409d1fe2e3e7b65d0fcd0a057a827a52ed836d5e6e332ef52fa70c01e22a1"`
[INFO] [stdout] a4f409d1fe2e3e7b65d0fcd0a057a827a52ed836d5e6e332ef52fa70c01e22a1