[INFO] fetching crate mumbleping-rs 0.1.0...
[INFO] testing mumbleping-rs-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate mumbleping-rs 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mumbleping-rs 0.1.0
[INFO] finished tweaking crates.io crate mumbleping-rs 0.1.0
[INFO] tweaked toml for crates.io crate mumbleping-rs 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mumbleping-rs 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--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]      Locking 10 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 889b5de24ad4a23dfaecad901a8a90ee3f17b149f2bbac6be2ed3d2ed0e93c61
[INFO] running `Command { std: "docker" "start" "-a" "889b5de24ad4a23dfaecad901a8a90ee3f17b149f2bbac6be2ed3d2ed0e93c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "889b5de24ad4a23dfaecad901a8a90ee3f17b149f2bbac6be2ed3d2ed0e93c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "889b5de24ad4a23dfaecad901a8a90ee3f17b149f2bbac6be2ed3d2ed0e93c61", kill_on_drop: false }`
[INFO] [stdout] 889b5de24ad4a23dfaecad901a8a90ee3f17b149f2bbac6be2ed3d2ed0e93c61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 702e41278b1cb8400eb957b8b41adb44691907c054cfe72ff2df5cc367d91445
[INFO] running `Command { std: "docker" "start" "-a" "702e41278b1cb8400eb957b8b41adb44691907c054cfe72ff2df5cc367d91445", kill_on_drop: false }`
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling mumbleping-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "702e41278b1cb8400eb957b8b41adb44691907c054cfe72ff2df5cc367d91445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "702e41278b1cb8400eb957b8b41adb44691907c054cfe72ff2df5cc367d91445", kill_on_drop: false }`
[INFO] [stdout] 702e41278b1cb8400eb957b8b41adb44691907c054cfe72ff2df5cc367d91445
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8902c251e34d01b274b663cd21ebe4b5bdb58d2887612c6b4aed706b40a4c4b
[INFO] running `Command { std: "docker" "start" "-a" "b8902c251e34d01b274b663cd21ebe4b5bdb58d2887612c6b4aed706b40a4c4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling mumbleping-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `thread`
[INFO] [stdout]    --> src/lib.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         thread::spawn(|| {
[INFO] [stdout]     |         ^^^^^^ use of unresolved module or unlinked crate `thread`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `thread`, use `cargo add thread` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]     |
[INFO] [stdout]  83 +     use std::thread;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/lib.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let (size, source) = socket.recv_from(&mut buf).expect("Failed to receive data");
[INFO] [stdout]    |              ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ping`
[INFO] [stdout]   --> src/lib.rs:93:14
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let (ping, identifier): (u32, u64) = bincode::decode_from_slice(&buf, bincode::config::standard().with_big_endian()).unwrap().0;
[INFO] [stdout]    |              ^^^^ help: if this is intentional, prefix it with an underscore: `_ping`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mumbleping-rs` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b8902c251e34d01b274b663cd21ebe4b5bdb58d2887612c6b4aed706b40a4c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8902c251e34d01b274b663cd21ebe4b5bdb58d2887612c6b4aed706b40a4c4b", kill_on_drop: false }`
[INFO] [stdout] b8902c251e34d01b274b663cd21ebe4b5bdb58d2887612c6b4aed706b40a4c4b