[INFO] cloning repository https://github.com/cobbinma/example-rust-api
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cobbinma/example-rust-api" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobbinma%2Fexample-rust-api", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobbinma%2Fexample-rust-api'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f276982707bf7c781ab050fcf1a8ecc42418bee4
[INFO] documenting cobbinma/example-rust-api against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobbinma%2Fexample-rust-api" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cobbinma/example-rust-api 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 git repo https://github.com/cobbinma/example-rust-api
[INFO] finished tweaking git repo https://github.com/cobbinma/example-rust-api
[INFO] tweaked toml for git repo https://github.com/cobbinma/example-rust-api written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/cobbinma/example-rust-api 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 8384c253edf14cbdce4e76aa709a2e25cdaae530c7256d30ee6ce11c5f268adb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8384c253edf14cbdce4e76aa709a2e25cdaae530c7256d30ee6ce11c5f268adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8384c253edf14cbdce4e76aa709a2e25cdaae530c7256d30ee6ce11c5f268adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8384c253edf14cbdce4e76aa709a2e25cdaae530c7256d30ee6ce11c5f268adb", kill_on_drop: false }`
[INFO] [stdout] 8384c253edf14cbdce4e76aa709a2e25cdaae530c7256d30ee6ce11c5f268adb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] bc5e6df65c8630dcc6e5e2e4504177ef64b7c24dad65112dba1d43ce9f065236
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bc5e6df65c8630dcc6e5e2e4504177ef64b7c24dad65112dba1d43ce9f065236", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.5.5
[INFO] [stderr]     Checking cache-padded v1.1.0
[INFO] [stderr]     Checking parking v1.0.3
[INFO] [stderr]     Checking fastrand v1.2.4
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling waker-fn v1.0.0
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking instant v0.1.4
[INFO] [stderr]     Checking infer v0.1.7
[INFO] [stderr]     Checking sql-builder v0.12.2
[INFO] [stderr]    Compiling barrel v0.5.8
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking lock_api v0.4.0
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling kv-log-macro v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.63
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling mockall_derive v0.7.1
[INFO] [stderr]     Checking sqlformat v0.1.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking byte-pool v0.2.1
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking postgres-protocol v0.5.1
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking femme v2.1.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.63
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking postgres-types v0.1.1
[INFO] [stderr]     Checking serde_qs v0.6.1
[INFO] [stderr]     Checking aes-gcm v0.5.0
[INFO] [stderr]    Compiling async-stream v0.2.1
[INFO] [stderr]     Checking time v0.2.16
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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"' -C metadata=222e5ad2f2b10331 -C extra-filename=-222e5ad2f2b10331 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9d30279c3bbc0fa2.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-3abdebaf3e4335e8.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-f4af8e7ee48fb608.rmeta --cap-lints allow --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --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" "bc5e6df65c8630dcc6e5e2e4504177ef64b7c24dad65112dba1d43ce9f065236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc5e6df65c8630dcc6e5e2e4504177ef64b7c24dad65112dba1d43ce9f065236", kill_on_drop: false }`
[INFO] [stdout] bc5e6df65c8630dcc6e5e2e4504177ef64b7c24dad65112dba1d43ce9f065236
