[INFO] fetching crate ethrecv 0.0.1...
[INFO] checking ethrecv-0.0.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate ethrecv 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ethrecv 0.0.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethrecv 0.0.1
[INFO] finished tweaking crates.io crate ethrecv 0.0.1
[INFO] tweaked toml for crates.io crate ethrecv 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate ethrecv 0.0.1 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomic-time v0.1.4
[INFO] [stderr]   Downloaded pcap v1.2.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0601fe2bb625e7626e22ea2aba7c0de123b69e30fe4229e712f90832ff20408b
[INFO] running `Command { std: "docker" "start" "-a" "0601fe2bb625e7626e22ea2aba7c0de123b69e30fe4229e712f90832ff20408b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0601fe2bb625e7626e22ea2aba7c0de123b69e30fe4229e712f90832ff20408b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0601fe2bb625e7626e22ea2aba7c0de123b69e30fe4229e712f90832ff20408b", kill_on_drop: false }`
[INFO] [stdout] 0601fe2bb625e7626e22ea2aba7c0de123b69e30fe4229e712f90832ff20408b
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f19896e9213151e8f6612e0263248465e09b348c3c7503cbb4cb559095454022
[INFO] running `Command { std: "docker" "start" "-a" "f19896e9213151e8f6612e0263248465e09b348c3c7503cbb4cb559095454022", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling pcap v1.2.0
[INFO] [stderr]     Checking ethrecv v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/unix.rs:168:27
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 while let Ok(msg) = rp.ch_rx.try_recv() {
[INFO] [stdout]     |                           ^^^^^^^ matches no values because `Msg` 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/unix.rs:168:27
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 while let Ok(msg) = rp.ch_rx.try_recv() {
[INFO] [stdout]     |                           ^^^^^^^ matches no values because `Msg` 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: 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 12.56s
[INFO] running `Command { std: "docker" "inspect" "f19896e9213151e8f6612e0263248465e09b348c3c7503cbb4cb559095454022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f19896e9213151e8f6612e0263248465e09b348c3c7503cbb4cb559095454022", kill_on_drop: false }`
[INFO] [stdout] f19896e9213151e8f6612e0263248465e09b348c3c7503cbb4cb559095454022