[INFO] fetching crate crates-io-cli 4.0.0...
[INFO] documenting crates-io-cli-4.0.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate crates-io-cli 4.0.0 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate crates-io-cli 4.0.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crates-io-cli 4.0.0
[INFO] finished tweaking crates.io crate crates-io-cli 4.0.0
[INFO] tweaked toml for crates.io crate crates-io-cli 4.0.0 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate crates.io crate crates-io-cli 4.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e65330fb1e5537e9fec4fb1592cc5a1f0655c1b855d4ea316dd027345de5dbb
[INFO] running `Command { std: "docker" "start" "-a" "1e65330fb1e5537e9fec4fb1592cc5a1f0655c1b855d4ea316dd027345de5dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e65330fb1e5537e9fec4fb1592cc5a1f0655c1b855d4ea316dd027345de5dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e65330fb1e5537e9fec4fb1592cc5a1f0655c1b855d4ea316dd027345de5dbb", kill_on_drop: false }`
[INFO] [stdout] 1e65330fb1e5537e9fec4fb1592cc5a1f0655c1b855d4ea316dd027345de5dbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f37a496faa19737a40f4f33e3dba529a2886693abec2ac0c49e0093c6618fd1
[INFO] running `Command { std: "docker" "start" "-a" "5f37a496faa19737a40f4f33e3dba529a2886693abec2ac0c49e0093c6618fd1", 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] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
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[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.48
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[INFO] [stderr]     Checking async-channel v1.5.1
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling const-random-macro v0.1.11
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[INFO] [stderr]     Checking const-random v0.1.11
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[INFO] [stderr]    Compiling libsqlite3-sys v0.20.1
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[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-1.0.48/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=2 -C embed-bitcode=no -C debug-assertions=on --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"' --cfg 'feature="visit-mut"' -C metadata=e1f6d8745527a1a6 -C extra-filename=-e1f6d8745527a1a6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6d54c2fbd2260f9d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5476661f6a829438.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-c0f0bf9d5472cb4e.rmeta --cap-lints allow --cfg syn_disable_nightly_tests` (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" "5f37a496faa19737a40f4f33e3dba529a2886693abec2ac0c49e0093c6618fd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f37a496faa19737a40f4f33e3dba529a2886693abec2ac0c49e0093c6618fd1", kill_on_drop: false }`
[INFO] [stdout] 5f37a496faa19737a40f4f33e3dba529a2886693abec2ac0c49e0093c6618fd1
