[INFO] updating cached repository https://github.com/rhbvkleef/rust-eterm
[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] 61ab94e16ecf3758bc269d7f16c625af172488b8
[INFO] documenting rhbvkleef/rust-eterm against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frhbvkleef%2Frust-eterm" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rhbvkleef/rust-eterm on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rhbvkleef/rust-eterm
[INFO] finished tweaking git repo https://github.com/rhbvkleef/rust-eterm
[INFO] tweaked toml for git repo https://github.com/rhbvkleef/rust-eterm written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/rhbvkleef/rust-eterm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e7a3cedc836ef8b7d9d89998ffa23003237745796a166b86dfbdd8cccfc6556
[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" "7e7a3cedc836ef8b7d9d89998ffa23003237745796a166b86dfbdd8cccfc6556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e7a3cedc836ef8b7d9d89998ffa23003237745796a166b86dfbdd8cccfc6556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7a3cedc836ef8b7d9d89998ffa23003237745796a166b86dfbdd8cccfc6556", kill_on_drop: false }`
[INFO] [stdout] 7e7a3cedc836ef8b7d9d89998ffa23003237745796a166b86dfbdd8cccfc6556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 0c5a5a9ed8c27e8d9d6c5b4f8b7c803b6e4b34e7fb520a9c6552c58804d8fcf0
[INFO] running `Command { std: "docker" "start" "-a" "0c5a5a9ed8c27e8d9d6c5b4f8b7c803b6e4b34e7fb520a9c6552c58804d8fcf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]  Documenting rust_eterm v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[dflags]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/terms.rs:359:29
[INFO] [stdout]     |
[INFO] [stdout] 359 |     /// [DFLAG_BIG_CREATON](dflags) becomes mandatory.
[INFO] [stdout]     |                             ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[dflags]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src/terms.rs:437:73
[INFO] [stdout]     |
[INFO] [stdout] 437 |     /// Planned to supersede [`Pid`] in OTP 23 when [DFLAG_BIG_CREATON](dflags)
[INFO] [stdout]     |                                                                         ^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.11s
[INFO] running `Command { std: "docker" "inspect" "0c5a5a9ed8c27e8d9d6c5b4f8b7c803b6e4b34e7fb520a9c6552c58804d8fcf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c5a5a9ed8c27e8d9d6c5b4f8b7c803b6e4b34e7fb520a9c6552c58804d8fcf0", kill_on_drop: false }`
[INFO] [stdout] 0c5a5a9ed8c27e8d9d6c5b4f8b7c803b6e4b34e7fb520a9c6552c58804d8fcf0