[INFO] cloning repository https://github.com/elkowar/eww
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/elkowar/eww" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felkowar%2Feww", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felkowar%2Feww'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8556e1539576fd39a89500d59acde4b523e9f716
[INFO] documenting elkowar/eww 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%2Felkowar%2Feww" "/workspace/builds/worker-74/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-74/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  49% (39/79)
Updating files:  50% (40/79)
Updating files:  51% (41/79)
Updating files:  53% (42/79)
Updating files:  54% (43/79)
Updating files:  55% (44/79)
Updating files:  56% (45/79)
Updating files:  58% (46/79)
Updating files:  59% (47/79)
Updating files:  60% (48/79)
Updating files:  62% (49/79)
Updating files:  63% (50/79)
Updating files:  64% (51/79)
Updating files:  65% (52/79)
Updating files:  67% (53/79)
Updating files:  68% (54/79)
Updating files:  69% (55/79)
Updating files:  70% (56/79)
Updating files:  72% (57/79)
Updating files:  73% (58/79)
Updating files:  74% (59/79)
Updating files:  75% (60/79)
Updating files:  77% (61/79)
Updating files:  78% (62/79)
Updating files:  79% (63/79)
Updating files:  81% (64/79)
Updating files:  82% (65/79)
Updating files:  83% (66/79)
Updating files:  84% (67/79)
Updating files:  86% (68/79)
Updating files:  87% (69/79)
Updating files:  88% (70/79)
Updating files:  89% (71/79)
Updating files:  91% (72/79)
Updating files:  92% (73/79)
Updating files:  93% (74/79)
Updating files:  94% (75/79)
Updating files:  96% (76/79)
Updating files:  97% (77/79)
Updating files:  98% (78/79)
Updating files: 100% (79/79)
Updating files: 100% (79/79), done.
[INFO] validating manifest of git repo https://github.com/elkowar/eww 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] removed /workspace/builds/worker-74/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/elkowar/eww
[INFO] finished tweaking git repo https://github.com/elkowar/eww
[INFO] tweaked toml for git repo https://github.com/elkowar/eww written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] crate git repo https://github.com/elkowar/eww 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] f4aef6382b11dadcd251b747a103046215dcd74b60ab87b4908adadf573a85d3
[INFO] running `Command { std: "docker" "start" "-a" "f4aef6382b11dadcd251b747a103046215dcd74b60ab87b4908adadf573a85d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4aef6382b11dadcd251b747a103046215dcd74b60ab87b4908adadf573a85d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4aef6382b11dadcd251b747a103046215dcd74b60ab87b4908adadf573a85d3", kill_on_drop: false }`
[INFO] [stdout] f4aef6382b11dadcd251b747a103046215dcd74b60ab87b4908adadf573a85d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] 6d220aeda9af422780e54732d6541fc84f3823226b17073365b64de89a0f77eb
[INFO] running `Command { std: "docker" "start" "-a" "6d220aeda9af422780e54732d6541fc84f3823226b17073365b64de89a0f77eb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]    Compiling sysinfo v0.16.5
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]    Compiling gdkx11 v0.9.0
[INFO] [stderr]     Checking beef v0.4.4
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking codemap v0.1.3
[INFO] [stderr]     Checking unescape v0.1.0
[INFO] [stderr]     Checking dyn-clone v1.0.4
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking peekmore v0.5.6
[INFO] [stderr]     Checking roxmltree v0.14.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr] error: could not compile `proc-macro2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name proc_macro2 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.26/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="proc-macro"' -C metadata=648d7147a50d69a7 -C extra-filename=-648d7147a50d69a7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-521ae656dc054791.rmeta --cap-lints allow --cfg lexerror_display --cfg hygiene --cfg use_proc_macro --cfg wrap_proc_macro` (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" "6d220aeda9af422780e54732d6541fc84f3823226b17073365b64de89a0f77eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d220aeda9af422780e54732d6541fc84f3823226b17073365b64de89a0f77eb", kill_on_drop: false }`
[INFO] [stdout] 6d220aeda9af422780e54732d6541fc84f3823226b17073365b64de89a0f77eb
