[INFO] fetching crate qr-tester 0.5.6...
[INFO] checking qr-tester-0.5.6 against try#88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c for pr-154887
[INFO] extracting crate qr-tester 0.5.6 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate qr-tester 0.5.6
[INFO] finished tweaking crates.io crate qr-tester 0.5.6
[INFO] tweaked toml for crates.io crate qr-tester 0.5.6 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qr-tester 0.5.6 on toolchain 88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qr-tester 0.5.6 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" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42b5d7ea5e5f4785c7b6197bf5a00721c76702e452ad7ab422b5b2994999ec83
[INFO] running `Command { std: "docker" "start" "-a" "42b5d7ea5e5f4785c7b6197bf5a00721c76702e452ad7ab422b5b2994999ec83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42b5d7ea5e5f4785c7b6197bf5a00721c76702e452ad7ab422b5b2994999ec83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42b5d7ea5e5f4785c7b6197bf5a00721c76702e452ad7ab422b5b2994999ec83", kill_on_drop: false }`
[INFO] [stdout] 42b5d7ea5e5f4785c7b6197bf5a00721c76702e452ad7ab422b5b2994999ec83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6953b29b60d69f43e7a214fcf40407e1bf7a57bbe616c46751625be362c42987
[INFO] running `Command { std: "docker" "start" "-a" "6953b29b60d69f43e7a214fcf40407e1bf7a57bbe616c46751625be362c42987", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking bytemuck v1.24.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking aligned v0.4.2
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]     Checking core2 v0.4.0
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling cc v1.2.46
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking bitstream-io v4.9.0
[INFO] [stderr]     Checking zune-jpeg v0.4.21
[INFO] [stderr]     Checking pxfm v0.1.25
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking safe_arch v0.7.4
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking flate2 v1.1.5
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking avif-serialize v0.8.6
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]     Checking rgb v0.8.52
[INFO] [stderr]     Checking zune-core v0.5.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking png v0.18.0
[INFO] [stderr]     Checking zune-jpeg v0.5.5
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]     Checking wide v0.7.33
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking gif v0.14.0
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking ttf-parser v0.25.1
[INFO] [stderr]    Compiling zbar-src v0.1.5
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking phf_shared v0.12.1
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking jpeg-decoder v0.3.2
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.10
[INFO] [stderr]    Compiling chrono-tz v0.10.4
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]    Compiling g2poly v1.2.2
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking moxcms v0.7.9
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking phf v0.12.1
[INFO] [stderr]     Checking gif v0.13.3
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking clap_lex v0.7.6
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]     Checking simba v0.8.1
[INFO] [stderr]     Checking clap_builder v4.5.52
[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/88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.110/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"' --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=fff0e88051e5eb70 -C extra-filename=-f8fe2d267e844d1b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-43e32a25692bf44a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-01cdf4ac6a2aaf5b.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9533002ac35f5809.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" "6953b29b60d69f43e7a214fcf40407e1bf7a57bbe616c46751625be362c42987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6953b29b60d69f43e7a214fcf40407e1bf7a57bbe616c46751625be362c42987", kill_on_drop: false }`
[INFO] [stdout] 6953b29b60d69f43e7a214fcf40407e1bf7a57bbe616c46751625be362c42987