[INFO] crate mailchecker 3.3.4 is already in cache
[INFO] checking mailchecker-3.3.4 against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] extracting crate mailchecker 3.3.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mailchecker 3.3.4 on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mailchecker 3.3.4
[INFO] finished tweaking crates.io crate mailchecker 3.3.4
[INFO] tweaked toml for crates.io crate mailchecker 3.3.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate mailchecker 3.3.4 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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] a27f20f235fba445e1e075a6e1642c45e9c832ff06d49523cb2e93f603a3f6bf
[INFO] running `"docker" "start" "-a" "a27f20f235fba445e1e075a6e1642c45e9c832ff06d49523cb2e93f603a3f6bf"`
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]     Checking pretty_assertions v0.1.2
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]     Checking mailchecker v3.3.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `"docker" "inspect" "a27f20f235fba445e1e075a6e1642c45e9c832ff06d49523cb2e93f603a3f6bf"`
[INFO] running `"docker" "rm" "-f" "a27f20f235fba445e1e075a6e1642c45e9c832ff06d49523cb2e93f603a3f6bf"`
[INFO] [stdout] a27f20f235fba445e1e075a6e1642c45e9c832ff06d49523cb2e93f603a3f6bf