[INFO] fetching crate mgrad 0.1.5...
[INFO] building mgrad-0.1.5 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate mgrad 0.1.5 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mgrad 0.1.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mgrad 0.1.5
[INFO] tweaked toml for crates.io crate mgrad 0.1.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mgrad 0.1.5 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mgrad 0.1.5 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e83432859a4872dea3bd6cdadd793668033931f6284d00dcba47e489a867619
[INFO] running `Command { std: "docker" "start" "-a" "7e83432859a4872dea3bd6cdadd793668033931f6284d00dcba47e489a867619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e83432859a4872dea3bd6cdadd793668033931f6284d00dcba47e489a867619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e83432859a4872dea3bd6cdadd793668033931f6284d00dcba47e489a867619", kill_on_drop: false }`
[INFO] [stdout] 7e83432859a4872dea3bd6cdadd793668033931f6284d00dcba47e489a867619
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79d1478e362696adfdf2cd53b67c04c1543d556b10558ab2d2be0c010d19b283
[INFO] running `Command { std: "docker" "start" "-a" "79d1478e362696adfdf2cd53b67c04c1543d556b10558ab2d2be0c010d19b283", kill_on_drop: false }`
[INFO] [stderr]    Compiling mgrad v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "79d1478e362696adfdf2cd53b67c04c1543d556b10558ab2d2be0c010d19b283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79d1478e362696adfdf2cd53b67c04c1543d556b10558ab2d2be0c010d19b283", kill_on_drop: false }`
[INFO] [stdout] 79d1478e362696adfdf2cd53b67c04c1543d556b10558ab2d2be0c010d19b283
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5455f6b1119fd08300214301190db4c455eb6bfe986401dc053a2be7f88062b6
[INFO] running `Command { std: "docker" "start" "-a" "5455f6b1119fd08300214301190db4c455eb6bfe986401dc053a2be7f88062b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.13
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling bitstream-io v2.6.0
[INFO] [stderr]    Compiling noop_proc_macro v0.3.0
[INFO] [stderr]    Compiling weezl v0.1.8
[INFO] [stderr]    Compiling loop9 v0.1.5
[INFO] [stderr]    Compiling avif-serialize v0.8.3
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling rgb v0.8.50
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling zune-core v0.4.12
[INFO] [stderr]    Compiling byteorder-lite v0.1.0
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling lebe v0.5.2
[INFO] [stderr]    Compiling bytemuck v1.23.0
[INFO] [stderr]    Compiling jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling gif v0.13.1
[INFO] [stderr]    Compiling image-webp v0.2.1
[INFO] [stderr]    Compiling zune-jpeg v0.4.14
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling flate2 v1.1.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling exr v1.73.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling tiff v0.9.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rand v0.9.1
[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/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.101/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --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=5c374d5059d64294 -C extra-filename=-b3a7a84d9d84a0db --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-09040b10b620fa15.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-bff949ffe258c67d.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b3925cc8f83e9ac1.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" "5455f6b1119fd08300214301190db4c455eb6bfe986401dc053a2be7f88062b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5455f6b1119fd08300214301190db4c455eb6bfe986401dc053a2be7f88062b6", kill_on_drop: false }`
[INFO] [stdout] 5455f6b1119fd08300214301190db4c455eb6bfe986401dc053a2be7f88062b6