[INFO] fetching crate swnb-timer 0.2.0...
[INFO] checking swnb-timer-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate swnb-timer 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate swnb-timer 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-1-tc1/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e16c3fde6d736de15b575ac68616a508dfce661d1fa47922eb1437f874460ae8
[INFO] running `Command { std: "docker" "start" "-a" "e16c3fde6d736de15b575ac68616a508dfce661d1fa47922eb1437f874460ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e16c3fde6d736de15b575ac68616a508dfce661d1fa47922eb1437f874460ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e16c3fde6d736de15b575ac68616a508dfce661d1fa47922eb1437f874460ae8", kill_on_drop: false }`
[INFO] [stdout] e16c3fde6d736de15b575ac68616a508dfce661d1fa47922eb1437f874460ae8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f7aca9e3fe79976ee78b19cd79ab7f58eda4fadde2a81728e6cca4eae428869
[INFO] running `Command { std: "docker" "start" "-a" "5f7aca9e3fe79976ee78b19cd79ab7f58eda4fadde2a81728e6cca4eae428869", 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: the item `Eq` is imported redundantly
[INFO] [stdout]  --> src/time.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::{Eq, Ord, Ordering};
[INFO] [stdout]   |                ^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Eq` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]  --> src/time.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::{Eq, Ord, Ordering};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Ord` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime`, `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`, `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: the item `Eq` is imported redundantly
[INFO] [stdout]  --> src/time.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::{Eq, Ord, Ordering};
[INFO] [stdout]   |                ^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Eq` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]  --> src/time.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::{Eq, Ord, Ordering};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Ord` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime`, `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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 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 0.39s
[INFO] running `Command { std: "docker" "inspect" "5f7aca9e3fe79976ee78b19cd79ab7f58eda4fadde2a81728e6cca4eae428869", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f7aca9e3fe79976ee78b19cd79ab7f58eda4fadde2a81728e6cca4eae428869", kill_on_drop: false }`
[INFO] [stdout] 5f7aca9e3fe79976ee78b19cd79ab7f58eda4fadde2a81728e6cca4eae428869