[INFO] fetching crate blinkt 0.5.0...
[INFO] checking blinkt-0.5.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate blinkt 0.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate blinkt 0.5.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate blinkt 0.5.0
[INFO] finished tweaking crates.io crate blinkt 0.5.0
[INFO] tweaked toml for crates.io crate blinkt 0.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] fa6a6f824e6cc9423e050b0f82301ff2f7d752c19b84d20b861d52b7775cfae3
[INFO] running `"docker" "start" "-a" "fa6a6f824e6cc9423e050b0f82301ff2f7d752c19b84d20b861d52b7775cfae3"`
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rppal v0.9.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking blinkt v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:268:24
[INFO] [stderr]     |
[INFO] [stderr] 268 |     serial_output: Box<SerialOutput>,
[INFO] [stderr]     |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn SerialOutput`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:268:24
[INFO] [stderr]     |
[INFO] [stderr] 268 |     serial_output: Box<SerialOutput>,
[INFO] [stderr]     |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn SerialOutput`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `"docker" "inspect" "fa6a6f824e6cc9423e050b0f82301ff2f7d752c19b84d20b861d52b7775cfae3"`
[INFO] running `"docker" "rm" "-f" "fa6a6f824e6cc9423e050b0f82301ff2f7d752c19b84d20b861d52b7775cfae3"`
[INFO] [stdout] fa6a6f824e6cc9423e050b0f82301ff2f7d752c19b84d20b861d52b7775cfae3