[INFO] fetching crate delay_timer 0.7.1...
[INFO] checking delay_timer-0.7.1 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate delay_timer 0.7.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate delay_timer 0.7.1 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate delay_timer 0.7.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate delay_timer 0.7.1
[INFO] tweaked toml for crates.io crate delay_timer 0.7.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate delay_timer 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d45f3bfec964b88981ebe96d9b90c0a9047add75e0e5bfc0b981112ea1a5bb74
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d45f3bfec964b88981ebe96d9b90c0a9047add75e0e5bfc0b981112ea1a5bb74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d45f3bfec964b88981ebe96d9b90c0a9047add75e0e5bfc0b981112ea1a5bb74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d45f3bfec964b88981ebe96d9b90c0a9047add75e0e5bfc0b981112ea1a5bb74", kill_on_drop: false }`
[INFO] [stdout] d45f3bfec964b88981ebe96d9b90c0a9047add75e0e5bfc0b981112ea1a5bb74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2973bc5d41f7847f3af5065739bbf449ff0ffbe8ee5c5e33e3e22adb4146143
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a2973bc5d41f7847f3af5065739bbf449ff0ffbe8ee5c5e33e3e22adb4146143", kill_on_drop: false }`
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[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/timer/event_handle.rs:393:70
[INFO] [stdout]     |
[INFO] [stdout] 387 | /     pub(crate) fn cancel_task(&mut self, task_id: u64, record_id: i64, state: usize) -> Result<()> {
[INFO] [stdout] 388 | |         if let Some(mut task_mark_ref_mut) = self.shared_header.task_flag_map.get_mut(&task_id) {
[INFO] [stdout] 389 | |             let task_mark = task_mark_ref_mut.value_mut();
[INFO] [stdout] 390 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 393 | |             self.task_trace.quit_one_task_handler(task_id, record_id)?;
[INFO] [stdout]     | |                                                                      ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<(), anyhow::Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 409 | |         ))
[INFO] [stdout] 410 | |     }
[INFO] [stdout]     | |_____- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `std::result::Result<(), anyhow::Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/timer/event_handle.rs:415:70
[INFO] [stdout]     |
[INFO] [stdout] 412 | /     pub(crate) fn finish_task(&mut self, task_id: u64, record_id: i64) -> Result<()> {
[INFO] [stdout] 413 | |         if let Some(mut task_mark_ref_mut) = self.shared_header.task_flag_map.get_mut(&task_id) {
[INFO] [stdout] 414 | |             let task_mark = task_mark_ref_mut.value_mut();
[INFO] [stdout] 415 | |             self.task_trace.quit_one_task_handler(task_id, record_id)?;
[INFO] [stdout]     | |                                                                      ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<(), anyhow::Error>`
[INFO] [stdout] ...   |
[INFO] [stdout] 430 | |         ))
[INFO] [stdout] 431 | |     }
[INFO] [stdout]     | |_____- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `std::result::Result<(), anyhow::Error>`
[INFO] [stdout]     = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `delay_timer` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a2973bc5d41f7847f3af5065739bbf449ff0ffbe8ee5c5e33e3e22adb4146143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2973bc5d41f7847f3af5065739bbf449ff0ffbe8ee5c5e33e3e22adb4146143", kill_on_drop: false }`
[INFO] [stdout] a2973bc5d41f7847f3af5065739bbf449ff0ffbe8ee5c5e33e3e22adb4146143