[INFO] fetching crate async-file-lock 0.1.4...
[INFO] testing async-file-lock-0.1.4 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate async-file-lock 0.1.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate async-file-lock 0.1.4
[INFO] finished tweaking crates.io crate async-file-lock 0.1.4
[INFO] tweaked toml for crates.io crate async-file-lock 0.1.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-file-lock 0.1.4 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding fork v0.1.23 (available: v0.2.0)
[INFO] [stderr]       Adding futures-lite v1.13.0 (available: v2.6.1)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.47.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fork v0.1.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3832b36d17165e9b2a59fa5382d51cd0d1555962f2066ae141ca81b3d56ed876
[INFO] running `Command { std: "docker" "start" "-a" "3832b36d17165e9b2a59fa5382d51cd0d1555962f2066ae141ca81b3d56ed876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3832b36d17165e9b2a59fa5382d51cd0d1555962f2066ae141ca81b3d56ed876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3832b36d17165e9b2a59fa5382d51cd0d1555962f2066ae141ca81b3d56ed876", kill_on_drop: false }`
[INFO] [stdout] 3832b36d17165e9b2a59fa5382d51cd0d1555962f2066ae141ca81b3d56ed876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37aa2f28f5310c4a2ca4c914f2b0c8ef0517316d4368767b038423b640937ff8
[INFO] running `Command { std: "docker" "start" "-a" "37aa2f28f5310c4a2ca4c914f2b0c8ef0517316d4368767b038423b640937ff8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling waker-fn v1.2.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling fs3 v0.5.0
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling async-file-lock v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |       pub fn try_lock_shared(&mut self) -> Result<()> {
[INFO] [stdout]     |                                            ---------- expected `Result<(), std::io::Error>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 122 | /         self.unlocked_file.as_mut().unwrap().try_lock_shared().map(|_| {
[INFO] [stdout] 123 | |             self.locked_file = Some(File::from_std(self.unlocked_file.take().unwrap()));
[INFO] [stdout] 124 | |             self.state = State::Locked;
[INFO] [stdout] 125 | |
[INFO] [stdout] 126 | |         })
[INFO] [stdout]     | |__________^ expected `Result<(), Error>`, found `Result<(), TryLockError>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Result<_, std::io::Error>`
[INFO] [stdout]                found enum `Result<_, std::fs::TryLockError>`
[INFO] [stdout] help: use `?` to coerce and return an appropriate `Err`, and wrap the resulting value in `Ok` so the expression remains of type `Result`
[INFO] [stdout]     |
[INFO] [stdout] 122 ~         Ok(self.unlocked_file.as_mut().unwrap().try_lock_shared().map(|_| {
[INFO] [stdout] 123 |             self.locked_file = Some(File::from_std(self.unlocked_file.take().unwrap()));
[INFO] [stdout] 124 |             self.state = State::Locked;
[INFO] [stdout] 125 |
[INFO] [stdout] 126 ~         })?)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-file-lock` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "37aa2f28f5310c4a2ca4c914f2b0c8ef0517316d4368767b038423b640937ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37aa2f28f5310c4a2ca4c914f2b0c8ef0517316d4368767b038423b640937ff8", kill_on_drop: false }`
[INFO] [stdout] 37aa2f28f5310c4a2ca4c914f2b0c8ef0517316d4368767b038423b640937ff8