[INFO] fetching crate fluid-xenth 0.7.0...
[INFO] checking fluid-xenth-0.7.0 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate fluid-xenth 0.7.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate fluid-xenth 0.7.0 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fluid-xenth 0.7.0
[INFO] finished tweaking crates.io crate fluid-xenth 0.7.0
[INFO] tweaked toml for crates.io crate fluid-xenth 0.7.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate fluid-xenth 0.7.0 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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generational-arena v0.2.8
[INFO] [stderr]   Downloaded tune v0.33.0
[INFO] [stderr]   Downloaded hound v3.5.0
[INFO] [stderr]   Downloaded soundfont v0.0.2
[INFO] [stderr]   Downloaded oxisynth v0.0.3
[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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dc9222dbfe005e7dd662c8ee27cc5150ac06cd9dc083ee98761356295943b03
[INFO] running `Command { std: "docker" "start" "-a" "9dc9222dbfe005e7dd662c8ee27cc5150ac06cd9dc083ee98761356295943b03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dc9222dbfe005e7dd662c8ee27cc5150ac06cd9dc083ee98761356295943b03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dc9222dbfe005e7dd662c8ee27cc5150ac06cd9dc083ee98761356295943b03", kill_on_drop: false }`
[INFO] [stdout] 9dc9222dbfe005e7dd662c8ee27cc5150ac06cd9dc083ee98761356295943b03
[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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56e6bfc95fecf848bb961429f690d3ad01893778c0f387d930b8b7977b7ee43e
[INFO] running `Command { std: "docker" "start" "-a" "56e6bfc95fecf848bb961429f690d3ad01893778c0f387d930b8b7977b7ee43e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking riff v1.0.1
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking soundfont v0.0.2
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[INFO] [stderr]     Checking tune v0.33.0
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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] [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" "56e6bfc95fecf848bb961429f690d3ad01893778c0f387d930b8b7977b7ee43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56e6bfc95fecf848bb961429f690d3ad01893778c0f387d930b8b7977b7ee43e", kill_on_drop: false }`
[INFO] [stdout] 56e6bfc95fecf848bb961429f690d3ad01893778c0f387d930b8b7977b7ee43e
[INFO] checking fluid-xenth-0.7.0 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate fluid-xenth 0.7.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate fluid-xenth 0.7.0 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fluid-xenth 0.7.0
[INFO] finished tweaking crates.io crate fluid-xenth 0.7.0
[INFO] tweaked toml for crates.io crate fluid-xenth 0.7.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate fluid-xenth 0.7.0 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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f41b4648224f2b7b9ef91cd4ea83f3f1c223439cb6298d0468a3992c74c5028c
[INFO] running `Command { std: "docker" "start" "-a" "f41b4648224f2b7b9ef91cd4ea83f3f1c223439cb6298d0468a3992c74c5028c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f41b4648224f2b7b9ef91cd4ea83f3f1c223439cb6298d0468a3992c74c5028c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f41b4648224f2b7b9ef91cd4ea83f3f1c223439cb6298d0468a3992c74c5028c", kill_on_drop: false }`
[INFO] [stdout] f41b4648224f2b7b9ef91cd4ea83f3f1c223439cb6298d0468a3992c74c5028c
[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" "-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c048d7d3751c3f1ccc8b2d69096ab8a26fbfd51aa491723463b2ed9b6d9dced
[INFO] running `Command { std: "docker" "start" "-a" "0c048d7d3751c3f1ccc8b2d69096ab8a26fbfd51aa491723463b2ed9b6d9dced", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking riff v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking soundfont v0.0.2
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[INFO] [stderr]     Checking tune v0.33.0
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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] [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" "0c048d7d3751c3f1ccc8b2d69096ab8a26fbfd51aa491723463b2ed9b6d9dced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c048d7d3751c3f1ccc8b2d69096ab8a26fbfd51aa491723463b2ed9b6d9dced", kill_on_drop: false }`
[INFO] [stdout] 0c048d7d3751c3f1ccc8b2d69096ab8a26fbfd51aa491723463b2ed9b6d9dced
