[INFO] fetching crate swnb-timer 0.2.0...
[INFO] checking swnb-timer-0.2.0 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate swnb-timer 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate swnb-timer 0.2.0 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate swnb-timer 0.2.0
[INFO] finished tweaking crates.io crate swnb-timer 0.2.0
[INFO] tweaked toml for crates.io crate swnb-timer 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate swnb-timer 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2efb7ea23f8923cbc0b8834a30253c73c801bd36528bb46cc26d99c378fdf625
[INFO] running `Command { std: "docker" "start" "-a" "2efb7ea23f8923cbc0b8834a30253c73c801bd36528bb46cc26d99c378fdf625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2efb7ea23f8923cbc0b8834a30253c73c801bd36528bb46cc26d99c378fdf625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2efb7ea23f8923cbc0b8834a30253c73c801bd36528bb46cc26d99c378fdf625", kill_on_drop: false }`
[INFO] [stdout] 2efb7ea23f8923cbc0b8834a30253c73c801bd36528bb46cc26d99c378fdf625
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c641ee62b21f7badff112e0f3ddf6778963d21bf38dd88b173abbda7ade62e6
[INFO] running `Command { std: "docker" "start" "-a" "4c641ee62b21f7badff112e0f3ddf6778963d21bf38dd88b173abbda7ade62e6", kill_on_drop: false }`
[INFO] [stderr]     Checking swnb-timer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::alloc::System`
[INFO] [stdout]  --> src/time.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::System;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime` and `UNIX_EPOCH`
[INFO] [stdout]   --> src/time.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                                    ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `default`, `mem::size_of`, and `time::Instant`
[INFO] [stdout]    --> src/time.rs:413:15
[INFO] [stdout]     |
[INFO] [stdout] 413 |     use std::{default, mem::size_of, time::Instant};
[INFO] [stdout]     |               ^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::alloc::System`
[INFO] [stdout]  --> src/time.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::alloc::System;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime` and `UNIX_EPOCH`
[INFO] [stdout]   --> src/time.rs:11:36
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                                    ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `default`
[INFO] [stdout]    --> src/time.rs:413:15
[INFO] [stdout]     |
[INFO] [stdout] 413 |     use std::{default, mem::size_of, time::Instant};
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `async_block`
[INFO] [stdout]  --> examples/async_timeout.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let async_block = async {
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_async_block`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "4c641ee62b21f7badff112e0f3ddf6778963d21bf38dd88b173abbda7ade62e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c641ee62b21f7badff112e0f3ddf6778963d21bf38dd88b173abbda7ade62e6", kill_on_drop: false }`
[INFO] [stdout] 4c641ee62b21f7badff112e0f3ddf6778963d21bf38dd88b173abbda7ade62e6