[INFO] cloning repository https://github.com/graders-rs/graders
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/graders-rs/graders" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf71d70c08a46e1b7d2e98d743d9ec2ebb084c61
[INFO] testing graders-rs/graders against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/graders-rs/graders
[INFO] finished tweaking git repo https://github.com/graders-rs/graders
[INFO] tweaked toml for git repo https://github.com/graders-rs/graders written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/graders-rs/graders on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/graders-rs/graders 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" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded reactor-trait v2.8.0
[INFO] [stderr]   Downloaded color-spantrace v0.3.0
[INFO] [stderr]   Downloaded backon v1.5.2
[INFO] [stderr]   Downloaded amq-protocol-uri v8.3.1
[INFO] [stderr]   Downloaded indenter v0.3.4
[INFO] [stderr]   Downloaded async-global-executor-trait v3.1.0
[INFO] [stderr]   Downloaded amq-protocol-tcp v8.3.1
[INFO] [stderr]   Downloaded reactor-trait v3.1.1
[INFO] [stderr]   Downloaded p12-keystore v0.2.0
[INFO] [stderr]   Downloaded async-reactor-trait v3.1.1
[INFO] [stderr]   Downloaded amq-protocol-types v8.3.1
[INFO] [stderr]   Downloaded is_executable v1.0.5
[INFO] [stderr]   Downloaded git2 v0.20.2
[INFO] [stderr]   Downloaded bzip2 v0.6.0
[INFO] [stderr]   Downloaded nom v8.0.0
[INFO] [stderr]   Downloaded lapin v3.7.2
[INFO] [stderr]   Downloaded zip v6.0.0
[INFO] [stderr]   Downloaded executor-trait v3.1.0
[INFO] [stderr]   Downloaded tcp-stream v0.30.9
[INFO] [stderr]   Downloaded amq-protocol v8.3.1
[INFO] [stderr]   Downloaded rustls-connector v0.21.11
[INFO] [stderr]   Downloaded color-eyre v0.6.5
[INFO] [stderr]   Downloaded libbz2-rs-sys v0.2.2
[INFO] [stderr]   Downloaded libgit2-sys v0.18.2+1.9.1
[INFO] [stderr]   Downloaded lzma-rust2 v0.13.0
[INFO] [stderr]   Downloaded aws-lc-sys v0.32.1
[INFO] [stderr]   Downloaded ppmd-rust v1.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17303242d613485fb6ecf8c4cf131ba10e4424487d3f362bdd5e20d69332a862
[INFO] running `Command { std: "docker" "start" "-a" "17303242d613485fb6ecf8c4cf131ba10e4424487d3f362bdd5e20d69332a862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17303242d613485fb6ecf8c4cf131ba10e4424487d3f362bdd5e20d69332a862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17303242d613485fb6ecf8c4cf131ba10e4424487d3f362bdd5e20d69332a862", kill_on_drop: false }`
[INFO] [stdout] 17303242d613485fb6ecf8c4cf131ba10e4424487d3f362bdd5e20d69332a862
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a47d3a21f770f906df9c01868a52f5c561bbd44b63daa56b502075c9d7a283b
[INFO] running `Command { std: "docker" "start" "-a" "3a47d3a21f770f906df9c01868a52f5c561bbd44b63daa56b502075c9d7a283b", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling find-msvc-tools v0.1.2
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling libloading v0.8.8
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling block-padding v0.3.3
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling flagset v0.4.7
[INFO] [stderr]    Compiling const-oid v0.9.6
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling aws-lc-rs v1.14.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling pbkdf2 v0.12.2
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling aes v0.8.4
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling rustls v0.23.32
[INFO] [stderr]    Compiling oid-registry v0.8.1
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling salsa20 v0.10.2
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling scrypt v0.11.0
[INFO] [stderr]    Compiling cbc v0.1.2
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling rc2 v0.8.1
[INFO] [stderr]    Compiling des v0.8.1
[INFO] [stderr]    Compiling nom v8.0.0
[INFO] [stderr]    Compiling piper v0.2.4
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling cookie-factory v0.3.3
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling async-executor v1.13.3
[INFO] [stderr]    Compiling async-lock v3.4.1
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling anstream v0.6.20
[INFO] [stderr]    Compiling zlib-rs v0.5.2
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling amq-protocol v8.3.1
[INFO] [stderr]    Compiling owo-colors v4.2.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling indenter v0.3.4
[INFO] [stderr]    Compiling lapin v3.7.2
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling rusticata-macros v4.1.0
[INFO] [stderr]    Compiling libbz2-rs-sys v0.2.2
[INFO] [stderr]    Compiling clap_builder v4.5.51
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]    Compiling tracing-error v0.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling aws-lc-sys v0.32.1
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling libssh2-sys v0.3.1
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling bzip2 v0.6.0
[INFO] [stderr]    Compiling libgit2-sys v0.18.2+1.9.1
[INFO] [stderr]    Compiling zopfli v0.8.2
[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/1ef7943ee607160a564655b6596f83670ef95df5/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.106/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"' --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=11c592613589499a -C extra-filename=-0e06c09ee65fd0a1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a28683de7e2d991e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-de6dd437dfb273ce.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b4c15d9166d0a657.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" "3a47d3a21f770f906df9c01868a52f5c561bbd44b63daa56b502075c9d7a283b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a47d3a21f770f906df9c01868a52f5c561bbd44b63daa56b502075c9d7a283b", kill_on_drop: false }`
[INFO] [stdout] 3a47d3a21f770f906df9c01868a52f5c561bbd44b63daa56b502075c9d7a283b