[INFO] fetching crate qtrac-retest 4.0.13...
[INFO] building qtrac-retest-4.0.13 against try#8aaecdf5df68a6fbc126704e44d399ba2fe66bf2 for pr-94962
[INFO] extracting crate qtrac-retest 4.0.13 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate qtrac-retest 4.0.13 on toolchain 8aaecdf5df68a6fbc126704e44d399ba2fe66bf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qtrac-retest 4.0.13
[INFO] finished tweaking crates.io crate qtrac-retest 4.0.13
[INFO] tweaked toml for crates.io crate qtrac-retest 4.0.13 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] crate crates.io crate qtrac-retest 4.0.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `strip` has been stabilized in the 1.58 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/profiles.html#strip-option for more information about using this feature.
[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-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cc5700d14ee1152fae638fe0aae03085879b4a0960a44c867611a47e03cc283
[INFO] running `Command { std: "docker" "start" "-a" "1cc5700d14ee1152fae638fe0aae03085879b4a0960a44c867611a47e03cc283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cc5700d14ee1152fae638fe0aae03085879b4a0960a44c867611a47e03cc283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cc5700d14ee1152fae638fe0aae03085879b4a0960a44c867611a47e03cc283", kill_on_drop: false }`
[INFO] [stdout] 1cc5700d14ee1152fae638fe0aae03085879b4a0960a44c867611a47e03cc283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f9ee3f17a3b815000e2a36643ed1ca300a4c578fb540d2c40e7d7b1f8894434
[INFO] running `Command { std: "docker" "start" "-a" "7f9ee3f17a3b815000e2a36643ed1ca300a4c578fb540d2c40e7d7b1f8894434", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `strip` has been stabilized in the 1.58 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/profiles.html#strip-option for more information about using this feature.
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling lebe v0.5.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling pathdiff v0.2.1
[INFO] [stderr]    Compiling bytemuck v1.7.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling open v2.1.0
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling png v0.17.4
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling nanorand v0.6.1
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tiff v0.7.1
[INFO] [stderr]    Compiling ctrlc v3.2.1
[INFO] [stderr]    Compiling jpeg-decoder v0.2.2
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.86/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 -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit-mut"' -C metadata=f3de8c51e8d977f2 -C extra-filename=-f3de8c51e8d977f2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d937f1f82ffb437d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-4040e84c0ddb8645.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7f9ee3f17a3b815000e2a36643ed1ca300a4c578fb540d2c40e7d7b1f8894434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f9ee3f17a3b815000e2a36643ed1ca300a4c578fb540d2c40e7d7b1f8894434", kill_on_drop: false }`
[INFO] [stdout] 7f9ee3f17a3b815000e2a36643ed1ca300a4c578fb540d2c40e7d7b1f8894434