[INFO] fetching crate apis 0.4.5...
[INFO] documenting apis-0.4.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate apis 0.4.5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate apis 0.4.5 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate apis 0.4.5
[INFO] finished tweaking crates.io crate apis 0.4.5
[INFO] tweaked toml for crates.io crate apis 0.4.5 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate apis 0.4.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lock_api v0.4.1
[INFO] [stderr]   Downloaded parking_lot_core v0.8.0
[INFO] [stderr]   Downloaded derivative v2.1.1
[INFO] [stderr]   Downloaded enum-iterator v0.6.0
[INFO] [stderr]   Downloaded enum-iterator-derive v0.6.0
[INFO] [stderr]   Downloaded miniz_oxide v0.4.3
[INFO] [stderr]   Downloaded libloading v0.6.5
[INFO] [stderr]   Downloaded ab_glyph_rasterizer v0.1.4
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.12.0
[INFO] [stderr]   Downloaded adler v0.2.3
[INFO] [stderr]   Downloaded rustc-demangle v0.1.18
[INFO] [stderr]   Downloaded cloudabi v0.1.0
[INFO] [stderr]   Downloaded core-graphics v0.22.1
[INFO] [stderr]   Downloaded xcursor v0.3.2
[INFO] [stderr]   Downloaded backtrace v0.3.54
[INFO] [stderr]   Downloaded object v0.22.0
[INFO] [stderr]   Downloaded variant_count v1.0.0
[INFO] [stderr]   Downloaded unbounded-spsc v0.1.6
[INFO] [stderr]   Downloaded raw-window-handle v0.3.3
[INFO] [stderr]   Downloaded wayland-cursor v0.28.1
[INFO] [stderr]   Downloaded wayland-client v0.28.1
[INFO] [stderr]   Downloaded instant v0.1.8
[INFO] [stderr]   Downloaded parking_lot v0.11.0
[INFO] [stderr]   Downloaded wayland-commons v0.28.1
[INFO] [stderr]   Downloaded xdg v2.2.0
[INFO] [stderr]   Downloaded x11-dl v2.18.5
[INFO] [stderr]   Downloaded wayland-protocols v0.28.1
[INFO] [stderr]   Downloaded once_cell v1.4.1
[INFO] [stderr]   Downloaded wayland-scanner v0.28.1
[INFO] [stderr]   Downloaded wayland-sys v0.28.1
[INFO] [stderr]   Downloaded simplelog v0.8.0
[INFO] [stderr]   Downloaded unwrap v1.2.1
[INFO] [stderr]   Downloaded addr2line v0.14.0
[INFO] [stderr]   Downloaded enum-unitary v0.4.2
[INFO] [stderr]   Downloaded wayland-egl v0.28.1
[INFO] [stderr]   Downloaded toml v0.5.7
[INFO] [stderr]   Downloaded marksman_escape v0.1.2
[INFO] [stderr]   Downloaded bounded-spsc-queue v0.4.0
[INFO] [stderr]   Downloaded macro-machines v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd93f2b9f1be39c47f52cf71f6624fbaee928287c499774c845d2cc3c2b0932d
[INFO] running `Command { std: "docker" "start" "-a" "bd93f2b9f1be39c47f52cf71f6624fbaee928287c499774c845d2cc3c2b0932d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd93f2b9f1be39c47f52cf71f6624fbaee928287c499774c845d2cc3c2b0932d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd93f2b9f1be39c47f52cf71f6624fbaee928287c499774c845d2cc3c2b0932d", kill_on_drop: false }`
[INFO] [stdout] bd93f2b9f1be39c47f52cf71f6624fbaee928287c499774c845d2cc3c2b0932d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 008d9ce6699699795c881a7ded8b02a4917794fffc04677fa1077d464e57b809
[INFO] running `Command { std: "docker" "start" "-a" "008d9ce6699699795c881a7ded8b02a4917794fffc04677fa1077d464e57b809", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking marksman_escape v0.1.2
[INFO] [stderr]     Checking bounded-spsc-queue v0.4.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bounded-spsc-queue-0.4.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bounded-spsc-queue` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "008d9ce6699699795c881a7ded8b02a4917794fffc04677fa1077d464e57b809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008d9ce6699699795c881a7ded8b02a4917794fffc04677fa1077d464e57b809", kill_on_drop: false }`
[INFO] [stdout] 008d9ce6699699795c881a7ded8b02a4917794fffc04677fa1077d464e57b809