[INFO] updating cached repository https://github.com/str4d/ire
[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] 76a1c0920aece97ac5d355e277fead0230ef242c
[INFO] documenting str4d/ire against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstr4d%2Fire" "/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/str4d/ire 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/str4d/ire
[INFO] finished tweaking git repo https://github.com/str4d/ire
[INFO] tweaked toml for git repo https://github.com/str4d/ire written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/str4d/ire 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] [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" "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] f90bd2104c6e0d34d00394f025c91db86a9978cb27b66a34672130dc1d5c78b1
[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" "f90bd2104c6e0d34d00394f025c91db86a9978cb27b66a34672130dc1d5c78b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f90bd2104c6e0d34d00394f025c91db86a9978cb27b66a34672130dc1d5c78b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f90bd2104c6e0d34d00394f025c91db86a9978cb27b66a34672130dc1d5c78b1", kill_on_drop: false }`
[INFO] [stdout] f90bd2104c6e0d34d00394f025c91db86a9978cb27b66a34672130dc1d5c78b1
[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" "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] 09e1d948acd3ea079d92cd7cec16ae635d133bea1806f7f38a087905c5d3a8c8
[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" "09e1d948acd3ea079d92cd7cec16ae635d133bea1806f7f38a087905c5d3a8c8", kill_on_drop: false }`
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[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
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[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]    Compiling synstructure v0.12.3
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[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.2
[INFO] [stderr]     Checking signatory-dalek v0.17.0
[INFO] [stderr]  Documenting ire v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/transport/ntcp2/frame.rs:282:30
[INFO] [stdout]     |
[INFO] [stdout] 282 | named!(pub session_confirmed<(Frame)>, call!(frame));
[INFO] [stdout]     |                              ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/transport/session.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |     type Item = (SessionRefs<F, D>);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 32s
[INFO] running `Command { std: "docker" "inspect" "09e1d948acd3ea079d92cd7cec16ae635d133bea1806f7f38a087905c5d3a8c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09e1d948acd3ea079d92cd7cec16ae635d133bea1806f7f38a087905c5d3a8c8", kill_on_drop: false }`
[INFO] [stdout] 09e1d948acd3ea079d92cd7cec16ae635d133bea1806f7f38a087905c5d3a8c8