[INFO] fetching crate music-player-discovery 0.1.3...
[INFO] checking music-player-discovery-0.1.3 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate music-player-discovery 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate music-player-discovery 0.1.3 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate music-player-discovery 0.1.3
[INFO] finished tweaking crates.io crate music-player-discovery 0.1.3
[INFO] tweaked toml for crates.io crate music-player-discovery 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate music-player-discovery 0.1.3 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spin v0.9.5
[INFO] [stderr]   Downloaded pest_meta v2.5.5
[INFO] [stderr]   Downloaded mdns v3.0.0
[INFO] [stderr]   Downloaded pest_derive v2.5.5
[INFO] [stderr]   Downloaded pest v2.5.5
[INFO] [stderr]   Downloaded libmdns v0.7.4
[INFO] [stderr]   Downloaded pest_generator v2.5.5
[INFO] [stderr]   Downloaded music-player-settings v0.1.6
[INFO] [stderr]   Downloaded mdns-sd v0.5.10
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14cfef5d232e6f88cfaf3c57df2cd28e88671defedc4a81658501c4fcae4a223
[INFO] running `Command { std: "docker" "start" "-a" "14cfef5d232e6f88cfaf3c57df2cd28e88671defedc4a81658501c4fcae4a223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14cfef5d232e6f88cfaf3c57df2cd28e88671defedc4a81658501c4fcae4a223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14cfef5d232e6f88cfaf3c57df2cd28e88671defedc4a81658501c4fcae4a223", kill_on_drop: false }`
[INFO] [stdout] 14cfef5d232e6f88cfaf3c57df2cd28e88671defedc4a81658501c4fcae4a223
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1638b3cffdade00c0a5b6c7b9a11f54f7396f8db07feeefcba5c3ee525019026
[INFO] running `Command { std: "docker" "start" "-a" "1638b3cffdade00c0a5b6c7b9a11f54f7396f8db07feeefcba5c3ee525019026", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling polling v2.5.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1638b3cffdade00c0a5b6c7b9a11f54f7396f8db07feeefcba5c3ee525019026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1638b3cffdade00c0a5b6c7b9a11f54f7396f8db07feeefcba5c3ee525019026", kill_on_drop: false }`
[INFO] [stdout] 1638b3cffdade00c0a5b6c7b9a11f54f7396f8db07feeefcba5c3ee525019026
[INFO] checking music-player-discovery-0.1.3 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate music-player-discovery 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate music-player-discovery 0.1.3 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate music-player-discovery 0.1.3
[INFO] finished tweaking crates.io crate music-player-discovery 0.1.3
[INFO] tweaked toml for crates.io crate music-player-discovery 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate music-player-discovery 0.1.3 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a7d31d4d71974dc3a5e46436aa874893cd598af3a8afe66d7bf419331ab6910
[INFO] running `Command { std: "docker" "start" "-a" "7a7d31d4d71974dc3a5e46436aa874893cd598af3a8afe66d7bf419331ab6910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a7d31d4d71974dc3a5e46436aa874893cd598af3a8afe66d7bf419331ab6910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a7d31d4d71974dc3a5e46436aa874893cd598af3a8afe66d7bf419331ab6910", kill_on_drop: false }`
[INFO] [stdout] 7a7d31d4d71974dc3a5e46436aa874893cd598af3a8afe66d7bf419331ab6910
[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 -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] df7bfa7b7e2db03a8eaf527946db7f6844c96fcbc47bc0367a5990a0a566f74c
[INFO] running `Command { std: "docker" "start" "-a" "df7bfa7b7e2db03a8eaf527946db7f6844c96fcbc47bc0367a5990a0a566f74c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling polling v2.5.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling async-io v1.12.0
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "df7bfa7b7e2db03a8eaf527946db7f6844c96fcbc47bc0367a5990a0a566f74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df7bfa7b7e2db03a8eaf527946db7f6844c96fcbc47bc0367a5990a0a566f74c", kill_on_drop: false }`
[INFO] [stdout] df7bfa7b7e2db03a8eaf527946db7f6844c96fcbc47bc0367a5990a0a566f74c
