[INFO] cloning repository https://github.com/trha/dwrite-everywhere
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trha/dwrite-everywhere" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrha%2Fdwrite-everywhere", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrha%2Fdwrite-everywhere'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0aa13a8c66ae56a9a58716713ed7064df3360f3
[INFO] documenting trha/dwrite-everywhere against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrha%2Fdwrite-everywhere" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/trha/dwrite-everywhere on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/trha/dwrite-everywhere
[INFO] finished tweaking git repo https://github.com/trha/dwrite-everywhere
[INFO] tweaked toml for git repo https://github.com/trha/dwrite-everywhere written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/trha/dwrite-everywhere already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 191862b6f6bfba950a7568f9f0eba3f0f9e71c51b1f66c91ebf6eb36cffc0518
[INFO] running `Command { std: "docker" "start" "-a" "191862b6f6bfba950a7568f9f0eba3f0f9e71c51b1f66c91ebf6eb36cffc0518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "191862b6f6bfba950a7568f9f0eba3f0f9e71c51b1f66c91ebf6eb36cffc0518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "191862b6f6bfba950a7568f9f0eba3f0f9e71c51b1f66c91ebf6eb36cffc0518", kill_on_drop: false }`
[INFO] [stdout] 191862b6f6bfba950a7568f9f0eba3f0f9e71c51b1f66c91ebf6eb36cffc0518
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e070a86a4b2d94488fb7ad1734c7b14936624808c48352e9c724cf5181d4c800
[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" "e070a86a4b2d94488fb7ad1734c7b14936624808c48352e9c724cf5181d4c800", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling winapi v0.3.5
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]     Checking tap v0.2.1
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking slice-pool v0.3.4
[INFO] [stderr]     Checking direct2d v0.1.2 (https://github.com/Connicpu/direct2d-rs.git?rev=c2a1889#c2a18895)
[INFO] [stderr]     Checking directwrite v0.1.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking errno v0.2.3
[INFO] [stderr]     Checking mmap-fixed v0.1.5
[INFO] [stderr]    Compiling libudis86-sys v0.2.0
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking inflate v0.4.2
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking generic-array v0.10.0
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]     Checking gamma-lut v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking wio v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking region v0.3.0
[INFO] [stderr]     Checking detour v0.5.0 (https://github.com/trha/detour-rs.git#15c39107)
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/detour-rs-b8c4c0c13c15c763/15c3910/src/lib.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "nightly", feature(const_fn, unboxed_closures))]
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[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 `detour`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e070a86a4b2d94488fb7ad1734c7b14936624808c48352e9c724cf5181d4c800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e070a86a4b2d94488fb7ad1734c7b14936624808c48352e9c724cf5181d4c800", kill_on_drop: false }`
[INFO] [stdout] e070a86a4b2d94488fb7ad1734c7b14936624808c48352e9c724cf5181d4c800