[INFO] fetching crate tailwind 0.1.0...
[INFO] testing tailwind-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate tailwind 0.1.0 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate tailwind 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tailwind 0.1.0
[INFO] finished tweaking crates.io crate tailwind 0.1.0
[INFO] tweaked toml for crates.io crate tailwind 0.1.0 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e38c940af4ae0fc3116a868ca2e0d5ecf259d65bf7eeaea36ef2a9dc425c60af
[INFO] running `Command { std: "docker" "start" "-a" "e38c940af4ae0fc3116a868ca2e0d5ecf259d65bf7eeaea36ef2a9dc425c60af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e38c940af4ae0fc3116a868ca2e0d5ecf259d65bf7eeaea36ef2a9dc425c60af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e38c940af4ae0fc3116a868ca2e0d5ecf259d65bf7eeaea36ef2a9dc425c60af", kill_on_drop: false }`
[INFO] [stdout] e38c940af4ae0fc3116a868ca2e0d5ecf259d65bf7eeaea36ef2a9dc425c60af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3b821e351bc8ef8590f6601242decdd87c36c7d44fecc8b9edf806690a45b5e
[INFO] running `Command { std: "docker" "start" "-a" "d3b821e351bc8ef8590f6601242decdd87c36c7d44fecc8b9edf806690a45b5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tailwind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Columns`
[INFO] [stdout]  --> src/lib.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Columns {}
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Spacing`
[INFO] [stdout]  --> src/lib.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Spacing {}
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "d3b821e351bc8ef8590f6601242decdd87c36c7d44fecc8b9edf806690a45b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b821e351bc8ef8590f6601242decdd87c36c7d44fecc8b9edf806690a45b5e", kill_on_drop: false }`
[INFO] [stdout] d3b821e351bc8ef8590f6601242decdd87c36c7d44fecc8b9edf806690a45b5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcfd53bf67b51906f273b92fcdfb13aeb66ca78a0a33e29db5e3fc1d2cb50cdc
[INFO] running `Command { std: "docker" "start" "-a" "dcfd53bf67b51906f273b92fcdfb13aeb66ca78a0a33e29db5e3fc1d2cb50cdc", kill_on_drop: false }`
[INFO] [stdout] warning: enum is never used: `Columns`
[INFO] [stdout]  --> src/lib.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Columns {}
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tailwind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Spacing`
[INFO] [stdout]  --> src/lib.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Spacing {}
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Columns`
[INFO] [stdout]  --> src/lib.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Columns {}
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Spacing`
[INFO] [stdout]  --> src/lib.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Spacing {}
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/tailwind-20c921777846fb2a)
[INFO] running `Command { std: "docker" "inspect" "dcfd53bf67b51906f273b92fcdfb13aeb66ca78a0a33e29db5e3fc1d2cb50cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcfd53bf67b51906f273b92fcdfb13aeb66ca78a0a33e29db5e3fc1d2cb50cdc", kill_on_drop: false }`
[INFO] [stdout] dcfd53bf67b51906f273b92fcdfb13aeb66ca78a0a33e29db5e3fc1d2cb50cdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d0460f35245085e7b7d1a8b980af431952402ac277a58ff42db97d55d8b4e8d3
[INFO] running `Command { std: "docker" "start" "-a" "d0460f35245085e7b7d1a8b980af431952402ac277a58ff42db97d55d8b4e8d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: enum is never used: `Columns`
[INFO] [stderr]  --> src/lib.rs:1:6
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum Columns {}
[INFO] [stderr]   |      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Spacing`
[INFO] [stderr]  --> src/lib.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Spacing {}
[INFO] [stderr]   |      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tailwind` (lib) generated 2 warnings
[INFO] [stderr] warning: `tailwind` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tailwind-20c921777846fb2a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tailwind
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d0460f35245085e7b7d1a8b980af431952402ac277a58ff42db97d55d8b4e8d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0460f35245085e7b7d1a8b980af431952402ac277a58ff42db97d55d8b4e8d3", kill_on_drop: false }`
[INFO] [stdout] d0460f35245085e7b7d1a8b980af431952402ac277a58ff42db97d55d8b4e8d3