[INFO] fetching crate io-uring 0.6.2...
[INFO] checking io-uring-0.6.2 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate io-uring 0.6.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate io-uring 0.6.2 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-uring 0.6.2
[INFO] finished tweaking crates.io crate io-uring 0.6.2
[INFO] tweaked toml for crates.io crate io-uring 0.6.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate io-uring 0.6.2 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prettyplease v0.2.15
[INFO] [stderr]   Downloaded shlex v1.2.0
[INFO] [stderr]   Downloaded sc v0.2.7
[INFO] [stderr]   Downloaded syn v2.0.36
[INFO] [stderr]   Downloaded bindgen v0.65.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c114aed6d31ffd2255f2140a8c57328ed6e5580b92470c51c72eb4baf138557
[INFO] running `Command { std: "docker" "start" "-a" "9c114aed6d31ffd2255f2140a8c57328ed6e5580b92470c51c72eb4baf138557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c114aed6d31ffd2255f2140a8c57328ed6e5580b92470c51c72eb4baf138557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c114aed6d31ffd2255f2140a8c57328ed6e5580b92470c51c72eb4baf138557", kill_on_drop: false }`
[INFO] [stdout] 9c114aed6d31ffd2255f2140a8c57328ed6e5580b92470c51c72eb4baf138557
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4884282be3c2ea333a8bdd026e897b32be612671c541788747d537a57d5ccb1f
[INFO] running `Command { std: "docker" "start" "-a" "4884282be3c2ea333a8bdd026e897b32be612671c541788747d537a57d5ccb1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling io-uring v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/opcode.rs:100:14
[INFO] [stdout]     |
[INFO] [stdout] 100 |     unsafe { std::mem::zeroed() }
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:5:27
[INFO] [stdout]     |
[INFO] [stdout] 5   | #![warn(rust_2018_idioms, unused_qualifications)]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 100 -     unsafe { std::mem::zeroed() }
[INFO] [stdout] 100 +     unsafe { mem::zeroed() }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/opcode.rs:100:14
[INFO] [stdout]     |
[INFO] [stdout] 100 |     unsafe { std::mem::zeroed() }
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:5:27
[INFO] [stdout]     |
[INFO] [stdout] 5   | #![warn(rust_2018_idioms, unused_qualifications)]
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 100 -     unsafe { std::mem::zeroed() }
[INFO] [stdout] 100 +     unsafe { mem::zeroed() }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "4884282be3c2ea333a8bdd026e897b32be612671c541788747d537a57d5ccb1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4884282be3c2ea333a8bdd026e897b32be612671c541788747d537a57d5ccb1f", kill_on_drop: false }`
[INFO] [stdout] 4884282be3c2ea333a8bdd026e897b32be612671c541788747d537a57d5ccb1f
[INFO] checking io-uring-0.6.2 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-2
[INFO] extracting crate io-uring 0.6.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate io-uring 0.6.2 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-uring 0.6.2
[INFO] finished tweaking crates.io crate io-uring 0.6.2
[INFO] tweaked toml for crates.io crate io-uring 0.6.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate io-uring 0.6.2 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 131e3caea6b8b00653b0ccf8d0e7c1538ade5d918d93322c06a019b07c84bb62
[INFO] running `Command { std: "docker" "start" "-a" "131e3caea6b8b00653b0ccf8d0e7c1538ade5d918d93322c06a019b07c84bb62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "131e3caea6b8b00653b0ccf8d0e7c1538ade5d918d93322c06a019b07c84bb62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "131e3caea6b8b00653b0ccf8d0e7c1538ade5d918d93322c06a019b07c84bb62", kill_on_drop: false }`
[INFO] [stdout] 131e3caea6b8b00653b0ccf8d0e7c1538ade5d918d93322c06a019b07c84bb62
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa046927a357c879adf39628bd4de7496c6b1603e97db9dbcc5e7c92d9dfb1d5
[INFO] running `Command { std: "docker" "start" "-a" "fa046927a357c879adf39628bd4de7496c6b1603e97db9dbcc5e7c92d9dfb1d5", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "fa046927a357c879adf39628bd4de7496c6b1603e97db9dbcc5e7c92d9dfb1d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa046927a357c879adf39628bd4de7496c6b1603e97db9dbcc5e7c92d9dfb1d5", kill_on_drop: false }`
[INFO] [stdout] fa046927a357c879adf39628bd4de7496c6b1603e97db9dbcc5e7c92d9dfb1d5