[INFO] fetching crate rustix-uring 0.6.0...
[INFO] checking rustix-uring-0.6.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rustix-uring 0.6.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rustix-uring 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rustix-uring 0.6.0
[INFO] tweaked toml for crates.io crate rustix-uring 0.6.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustix-uring 0.6.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustix-uring 0.6.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3038ab78b709b5138cf1729b8f5bef04d74974d446cc3b770a086599e356e508
[INFO] running `Command { std: "docker" "start" "-a" "3038ab78b709b5138cf1729b8f5bef04d74974d446cc3b770a086599e356e508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3038ab78b709b5138cf1729b8f5bef04d74974d446cc3b770a086599e356e508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3038ab78b709b5138cf1729b8f5bef04d74974d446cc3b770a086599e356e508", kill_on_drop: false }`
[INFO] [stdout] 3038ab78b709b5138cf1729b8f5bef04d74974d446cc3b770a086599e356e508
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d00a19b8aec6c3ea5d6d0015a613cc5eb0c8f0256d3f5455af7f1c8495746a8a
[INFO] running `Command { std: "docker" "start" "-a" "d00a19b8aec6c3ea5d6d0015a613cc5eb0c8f0256d3f5455af7f1c8495746a8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.0.2
[INFO] [stderr]     Checking linux-raw-sys v0.9.2
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking rustix-uring v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/types.rs:403:34
[INFO] [stdout]     |
[INFO] [stdout] 403 |         let msghdr_control_len = usize::try_from(msghdr.msg_controllen).unwrap();
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustix-uring` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/types.rs:403:34
[INFO] [stdout]     |
[INFO] [stdout] 403 |         let msghdr_control_len = usize::try_from(msghdr.msg_controllen).unwrap();
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustix-uring` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "d00a19b8aec6c3ea5d6d0015a613cc5eb0c8f0256d3f5455af7f1c8495746a8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d00a19b8aec6c3ea5d6d0015a613cc5eb0c8f0256d3f5455af7f1c8495746a8a", kill_on_drop: false }`
[INFO] [stdout] d00a19b8aec6c3ea5d6d0015a613cc5eb0c8f0256d3f5455af7f1c8495746a8a