[INFO] crate cortex-a 2.8.1 is already in cache
[INFO] checking cortex-a-2.8.1 against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] extracting crate cortex-a 2.8.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cortex-a 2.8.1 on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cortex-a 2.8.1
[INFO] finished tweaking crates.io crate cortex-a 2.8.1
[INFO] tweaked toml for crates.io crate cortex-a 2.8.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+e922e6444795ab795fab1943288aee3d543699b8" "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] 04ba3b6ee7f9f65f62d9c62807d153aa445b39459656407e4288a2923fdee486
[INFO] running `"docker" "start" "-a" "04ba3b6ee7f9f65f62d9c62807d153aa445b39459656407e4288a2923fdee486"`
[INFO] [stderr]     Checking tock-registers v0.4.1
[INFO] [stderr]     Checking register v0.4.1
[INFO] [stderr]     Checking cortex-a v2.8.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `core`
[INFO] [stderr]   --> src/asm.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use core;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core`
[INFO] [stderr]   --> src/asm.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use core;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `"docker" "inspect" "04ba3b6ee7f9f65f62d9c62807d153aa445b39459656407e4288a2923fdee486"`
[INFO] running `"docker" "rm" "-f" "04ba3b6ee7f9f65f62d9c62807d153aa445b39459656407e4288a2923fdee486"`
[INFO] [stdout] 04ba3b6ee7f9f65f62d9c62807d153aa445b39459656407e4288a2923fdee486