[INFO] updating cached repository https://github.com/cheme/cv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af4b67e2aa5d9aef9c3ab8a48be8b0d8b7e056c0
[INFO] documenting cheme/cv against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcheme%2Fcv" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cheme/cv on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cheme/cv
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/cheme/cv
[INFO] tweaked toml for git repo https://github.com/cheme/cv written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/cheme/cv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7902dd14200f642abb4950b58bad85c6f03cceacdc6f91b3fc33fcac8ada5e28
[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" "7902dd14200f642abb4950b58bad85c6f03cceacdc6f91b3fc33fcac8ada5e28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7902dd14200f642abb4950b58bad85c6f03cceacdc6f91b3fc33fcac8ada5e28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7902dd14200f642abb4950b58bad85c6f03cceacdc6f91b3fc33fcac8ada5e28", kill_on_drop: false }`
[INFO] [stdout] 7902dd14200f642abb4950b58bad85c6f03cceacdc6f91b3fc33fcac8ada5e28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] defc7e94890f8a4a1afc05a682ee31cab30e104bd550a89e625fa26c49568b80
[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" "defc7e94890f8a4a1afc05a682ee31cab30e104bd550a89e625fa26c49568b80", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking compress v0.1.2 (https://github.com/cheme/rust-compress.git#5c5c4640)
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36 (https://github.com/cheme/rust-crypto.git#15e12c3a)
[INFO] [stderr]  Documenting cv v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `cv`.
[INFO] [stdout] error[E0432]: unresolved import `std::heap`
[INFO] [stdout]   --> src/main.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::heap::{Alloc, Heap, Layout};
[INFO] [stdout]    |          ^^^^ could not find `heap` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name cv src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern compress=/opt/rustwide/target/debug/deps/libcompress-10a74eefdbe16734.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-be5e23c4c0b6dd92.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "defc7e94890f8a4a1afc05a682ee31cab30e104bd550a89e625fa26c49568b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "defc7e94890f8a4a1afc05a682ee31cab30e104bd550a89e625fa26c49568b80", kill_on_drop: false }`
[INFO] [stdout] defc7e94890f8a4a1afc05a682ee31cab30e104bd550a89e625fa26c49568b80