[INFO] cloning repository https://github.com/matthiasbeyer/notify-via-mqtt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthiasbeyer/notify-via-mqtt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiasbeyer%2Fnotify-via-mqtt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiasbeyer%2Fnotify-via-mqtt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3738ef4e6a28c4441121ae2986063ef3735a232
[INFO] building matthiasbeyer/notify-via-mqtt against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiasbeyer%2Fnotify-via-mqtt" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/matthiasbeyer/notify-via-mqtt
[INFO] finished tweaking git repo https://github.com/matthiasbeyer/notify-via-mqtt
[INFO] tweaked toml for git repo https://github.com/matthiasbeyer/notify-via-mqtt written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matthiasbeyer/notify-via-mqtt on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matthiasbeyer/notify-via-mqtt 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8056b0a171e75cc180f4bca31766b0be576f4c3376dc9de875687e752e6c49c3
[INFO] running `Command { std: "docker" "start" "-a" "8056b0a171e75cc180f4bca31766b0be576f4c3376dc9de875687e752e6c49c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8056b0a171e75cc180f4bca31766b0be576f4c3376dc9de875687e752e6c49c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8056b0a171e75cc180f4bca31766b0be576f4c3376dc9de875687e752e6c49c3", kill_on_drop: false }`
[INFO] [stdout] 8056b0a171e75cc180f4bca31766b0be576f4c3376dc9de875687e752e6c49c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dd602597153788bbd023598cabd556d3e6be7704f1cabcf1fd9f8c77639d54f
[INFO] running `Command { std: "docker" "start" "-a" "0dd602597153788bbd023598cabd556d3e6be7704f1cabcf1fd9f8c77639d54f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling cc v1.1.6
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling winnow v0.6.26
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling event-listener v5.3.1
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling winnow v0.7.0
[INFO] [stderr]    Compiling event-listener-strategy v0.5.2
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]    Compiling futures-lite v2.6.0
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling endi v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling async-lock v3.4.0
[INFO] [stderr]    Compiling async-task v4.7.1
[INFO] [stderr]    Compiling async-channel v2.3.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling piper v0.2.3
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling toml_edit v0.22.23
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling backtrace v0.3.73
[INFO] [stderr]    Compiling gimli v0.29.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stderr]    Compiling anstyle-parse v0.2.4
[INFO] [stderr]    Compiling blocking v1.6.1
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling mio v1.0.1
[INFO] [stderr]    Compiling object v0.36.1
[INFO] [stderr]    Compiling anstyle-query v1.1.0
[INFO] [stderr]    Compiling colorchoice v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.87/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=a9ac043cff67b289 -C extra-filename=-d55f57496a1ac01e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ce1b94ddc7427cd6.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9ba7cd8bb928c77f.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-c127c4d798582dc8.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0dd602597153788bbd023598cabd556d3e6be7704f1cabcf1fd9f8c77639d54f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd602597153788bbd023598cabd556d3e6be7704f1cabcf1fd9f8c77639d54f", kill_on_drop: false }`
[INFO] [stdout] 0dd602597153788bbd023598cabd556d3e6be7704f1cabcf1fd9f8c77639d54f