[INFO] fetching crate webapp-frontend 1.0.0...
[INFO] documenting webapp-frontend-1.0.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate webapp-frontend 1.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate webapp-frontend 1.0.0 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 webapp-frontend 1.0.0
[INFO] finished tweaking crates.io crate webapp-frontend 1.0.0
[INFO] tweaked toml for crates.io crate webapp-frontend 1.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4ef20efccafef058307838805048dfeeb7f7d5104f91b6b5b788b087954fd3a3
[INFO] running `Command { std: "docker" "start" "-a" "4ef20efccafef058307838805048dfeeb7f7d5104f91b6b5b788b087954fd3a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef20efccafef058307838805048dfeeb7f7d5104f91b6b5b788b087954fd3a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef20efccafef058307838805048dfeeb7f7d5104f91b6b5b788b087954fd3a3", kill_on_drop: false }`
[INFO] [stdout] 4ef20efccafef058307838805048dfeeb7f7d5104f91b6b5b788b087954fd3a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 419e2dfd05cff8c6a2c57ed0f9ad13ad4140aaef7c52c8fe3a5cfc48005b7e47
[INFO] running `Command { std: "docker" "start" "-a" "419e2dfd05cff8c6a2c57ed0f9ad13ad4140aaef7c52c8fe3a5cfc48005b7e47", kill_on_drop: false }`
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling base-x v0.2.8
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling sass-sys v0.4.22
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling object v0.26.0
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.127/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="serde_derive"' --cfg 'feature="std"' -C metadata=751e4ec962046436 -C extra-filename=-751e4ec962046436 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-9750f1eb302cf72d.so --cap-lints allow --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg serde_derive --cfg core_try_from --cfg num_nonzero_signed --cfg systemtime_checked_add --cfg std_atomic64 --cfg std_atomic` (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" "419e2dfd05cff8c6a2c57ed0f9ad13ad4140aaef7c52c8fe3a5cfc48005b7e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "419e2dfd05cff8c6a2c57ed0f9ad13ad4140aaef7c52c8fe3a5cfc48005b7e47", kill_on_drop: false }`
[INFO] [stdout] 419e2dfd05cff8c6a2c57ed0f9ad13ad4140aaef7c52c8fe3a5cfc48005b7e47
