[INFO] cloning repository https://github.com/kana-rus/aoba
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kana-rus/aoba" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkana-rus%2Faoba", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkana-rus%2Faoba'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ddd224f3d8ab92642a7edfb835e8e8a086c238e
[INFO] documenting kana-rus/aoba against master#d7d9f15be205b45d44700e7ac33b4f79b91f9680 for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkana-rus%2Faoba" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kana-rus/aoba on toolchain d7d9f15be205b45d44700e7ac33b4f79b91f9680
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kana-rus/aoba
[INFO] finished tweaking git repo https://github.com/kana-rus/aoba
[INFO] tweaked toml for git repo https://github.com/kana-rus/aoba written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kana-rus/aoba 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" "+d7d9f15be205b45d44700e7ac33b4f79b91f9680" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] documenting kana-rus/aoba against master#50be22964035027398754e54cd3a497efb00f83e for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkana-rus%2Faoba" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kana-rus/aoba on toolchain 50be22964035027398754e54cd3a497efb00f83e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kana-rus/aoba
[INFO] finished tweaking git repo https://github.com/kana-rus/aoba
[INFO] tweaked toml for git repo https://github.com/kana-rus/aoba written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kana-rus/aoba 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" "+50be22964035027398754e54cd3a497efb00f83e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] documenting kana-rus/aoba against master#50be22964035027398754e54cd3a497efb00f83e for pr-117450
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkana-rus%2Faoba" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kana-rus/aoba on toolchain 50be22964035027398754e54cd3a497efb00f83e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kana-rus/aoba
[INFO] finished tweaking git repo https://github.com/kana-rus/aoba
[INFO] tweaked toml for git repo https://github.com/kana-rus/aoba written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kana-rus/aoba 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" "+50be22964035027398754e54cd3a497efb00f83e" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atoi v1.0.0
[INFO] [stderr]   Downloaded sqlx-rt v0.6.2
[INFO] [stderr]   Downloaded schannel v0.1.21
[INFO] [stderr]   Downloaded async-process v1.6.0
[INFO] [stderr]   Downloaded futures-io v0.3.26
[INFO] [stderr]   Downloaded futures-sink v0.3.26
[INFO] [stderr]   Downloaded redox_users v0.4.3
[INFO] [stderr]   Downloaded dirs v4.0.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.6
[INFO] [stderr]   Downloaded sqlx v0.6.2
[INFO] [stderr]   Downloaded windows_i686_msvc v0.42.1
[INFO] [stderr]   Downloaded idna v0.3.0
[INFO] [stderr]   Downloaded serde_json v1.0.91
[INFO] [stderr]   Downloaded futures-util v0.3.26
[INFO] [stderr]   Downloaded hkdf v0.12.3
[INFO] [stderr]   Downloaded sqlx-core v0.6.2
[INFO] [stderr]   Downloaded openssl v0.10.45
[INFO] [stderr]   Downloaded async-std v1.12.0
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.1
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.1
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.1
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.1
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.1
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.42.1
[INFO] [stderr]   Downloaded libc v0.2.139
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] [stderr]   Downloaded quote v1.0.23
[INFO] [stderr]   Downloaded security-framework-sys v2.8.0
[INFO] [stderr]   Downloaded fastrand v1.8.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded form_urlencoded v1.1.0
[INFO] [stderr]   Downloaded sqlx-macros v0.6.2
[INFO] [stderr]   Downloaded md-5 v0.10.5
[INFO] [stderr]   Downloaded getrandom v0.2.8
[INFO] [stderr]   Downloaded serde_derive v1.0.152
[INFO] [stderr]   Downloaded either v1.8.1
[INFO] [stderr]   Downloaded unicode_categories v0.1.1
[INFO] [stderr]   Downloaded stringprep v0.1.2
[INFO] [stderr]   Downloaded whoami v1.3.0
[INFO] [stderr]   Downloaded futures-macro v0.3.26
[INFO] [stderr]   Downloaded futures-task v0.3.26
[INFO] [stderr]   Downloaded thiserror-impl v1.0.38
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.8
[INFO] [stderr]   Downloaded dirs-sys v0.3.7
[INFO] [stderr]   Downloaded dotenvy v0.15.6
[INFO] [stderr]   Downloaded parking_lot_core v0.8.6
[INFO] [stderr]   Downloaded futures-intrusive v0.4.2
[INFO] [stderr]   Downloaded hashlink v0.8.1
[INFO] [stderr]   Downloaded hmac v0.12.1
[INFO] [stderr]   Downloaded indexmap v1.9.2
[INFO] [stderr]   Downloaded itoa v1.0.5
[INFO] [stderr]   Downloaded ryu v1.0.12
[INFO] [stderr]   Downloaded serde v1.0.152
[INFO] [stderr]   Downloaded sqlformat v0.2.1
[INFO] [stderr]   Downloaded openssl-sys v0.9.80
[INFO] [stderr]   Downloaded thiserror v1.0.38
[INFO] [stderr]   Downloaded async-global-executor v2.3.1
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded polling v2.5.2
[INFO] [stderr]   Downloaded socket2 v0.4.7
[INFO] [stderr]   Downloaded async-io v1.12.0
[INFO] [stderr]   Downloaded blocking v1.3.0
[INFO] [stderr]   Downloaded signal-hook v0.3.14
[INFO] [stderr]   Downloaded futures-lite v1.12.0
[INFO] [stderr]   Downloaded paste v1.0.11
[INFO] [stderr]   Downloaded async-native-tls v0.4.0
[INFO] [stderr]   Downloaded concurrent-queue v2.1.0
[INFO] [stderr]   Downloaded once_cell v1.17.0
[INFO] [stderr]   Downloaded unicode-bidi v0.3.10
[INFO] [stderr]   Downloaded async-executor v1.5.0
[INFO] [stderr]   Downloaded async-lock v2.6.0
[INFO] [stderr]   Downloaded async-task v4.3.0
[INFO] [stderr]   Downloaded atomic-waker v1.1.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.14
[INFO] [stderr]   Downloaded parking v2.0.0
[INFO] [stderr]   Downloaded futures-channel v0.3.26
[INFO] [stderr]   Downloaded futures-core v0.3.26
[INFO] [stderr]   Downloaded kv-log-macro v1.0.7
[INFO] [stderr]   Downloaded slab v0.4.7
[INFO] [stderr]   Downloaded ctor v0.1.26
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.9
[INFO] [stderr]   Downloaded openssl-macros v0.1.0
[INFO] [stderr]   Downloaded gloo-timers v0.2.6
[INFO] [stderr]   Downloaded security-framework v2.8.2
[INFO] [stderr]   Downloaded url v2.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56be19699a34b7fec6d96faaad93fdae54a8ba516c0ec2a168018d98899b1850
[INFO] running `Command { std: "docker" "start" "-a" "56be19699a34b7fec6d96faaad93fdae54a8ba516c0ec2a168018d98899b1850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56be19699a34b7fec6d96faaad93fdae54a8ba516c0ec2a168018d98899b1850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56be19699a34b7fec6d96faaad93fdae54a8ba516c0ec2a168018d98899b1850", kill_on_drop: false }`
[INFO] [stdout] 56be19699a34b7fec6d96faaad93fdae54a8ba516c0ec2a168018d98899b1850
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+50be22964035027398754e54cd3a497efb00f83e" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccc364ed35c5d4739f0403a8330049ebd4037f3d8e21ed87a11fe4ec3f09ca69
[INFO] running `Command { std: "docker" "start" "-a" "ccc364ed35c5d4739f0403a8330049ebd4037f3d8e21ed87a11fe4ec3f09ca69", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling polling v2.5.2
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ccc364ed35c5d4739f0403a8330049ebd4037f3d8e21ed87a11fe4ec3f09ca69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccc364ed35c5d4739f0403a8330049ebd4037f3d8e21ed87a11fe4ec3f09ca69", kill_on_drop: false }`
[INFO] [stdout] ccc364ed35c5d4739f0403a8330049ebd4037f3d8e21ed87a11fe4ec3f09ca69