[INFO] fetching crate uds 0.4.2...
[INFO] checking uds-0.4.2 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate uds 0.4.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate uds 0.4.2 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uds 0.4.2
[INFO] finished tweaking crates.io crate uds 0.4.2
[INFO] tweaked toml for crates.io crate uds 0.4.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate uds 0.4.2 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a911cc79a5505ea85ce92d96235fa217ff50629cf9d95ac400e864c60c140de
[INFO] running `Command { std: "docker" "start" "-a" "5a911cc79a5505ea85ce92d96235fa217ff50629cf9d95ac400e864c60c140de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a911cc79a5505ea85ce92d96235fa217ff50629cf9d95ac400e864c60c140de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a911cc79a5505ea85ce92d96235fa217ff50629cf9d95ac400e864c60c140de", kill_on_drop: false }`
[INFO] [stdout] 5a911cc79a5505ea85ce92d96235fa217ff50629cf9d95ac400e864c60c140de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 922baaaa3cc5c9a4c65be1089735a8dca974430c711f785d529c3759a5985eed
[INFO] running `Command { std: "docker" "start" "-a" "922baaaa3cc5c9a4c65be1089735a8dca974430c711f785d529c3759a5985eed", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.72
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking uds v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/ancillary.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Err(_) => {
[INFO] [stdout]    |             ^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ancillary.rs:484:13
[INFO] [stdout]     |
[INFO] [stdout] 484 |             Err(_) => {
[INFO] [stdout]     |             ^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/ancillary.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Err(_) => {
[INFO] [stdout]    |             ^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ancillary.rs:484:13
[INFO] [stdout]     |
[INFO] [stdout] 484 |             Err(_) => {
[INFO] [stdout]     |             ^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.97s
[INFO] running `Command { std: "docker" "inspect" "922baaaa3cc5c9a4c65be1089735a8dca974430c711f785d529c3759a5985eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "922baaaa3cc5c9a4c65be1089735a8dca974430c711f785d529c3759a5985eed", kill_on_drop: false }`
[INFO] [stdout] 922baaaa3cc5c9a4c65be1089735a8dca974430c711f785d529c3759a5985eed