[INFO] updating cached repository https://github.com/erikjohnston/rust-matrix-state
[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] 7b817b15b83ee3f626367a0e2be48eab333cd4f3
[INFO] documenting erikjohnston/rust-matrix-state against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferikjohnston%2Frust-matrix-state" "/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/erikjohnston/rust-matrix-state 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/erikjohnston/rust-matrix-state
[INFO] finished tweaking git repo https://github.com/erikjohnston/rust-matrix-state
[INFO] tweaked toml for git repo https://github.com/erikjohnston/rust-matrix-state written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/erikjohnston/rust-matrix-state 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-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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b597ccad720125a5a709934f90103c211d002c8215b1e1a331198db42d7a8255
[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" "b597ccad720125a5a709934f90103c211d002c8215b1e1a331198db42d7a8255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b597ccad720125a5a709934f90103c211d002c8215b1e1a331198db42d7a8255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b597ccad720125a5a709934f90103c211d002c8215b1e1a331198db42d7a8255", kill_on_drop: false }`
[INFO] [stdout] b597ccad720125a5a709934f90103c211d002c8215b1e1a331198db42d7a8255
[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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac4e6e38aa90127df5ddf45fa937360f9c943053c4b69f6f3b642341030339c5
[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" "ac4e6e38aa90127df5ddf45fa937360f9c943053c4b69f6f3b642341030339c5", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
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[INFO] [stderr]     Checking log v0.4.1
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[INFO] [stderr]     Checking regex-syntax v0.5.3
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[INFO] [stderr]     Checking unreachable v1.0.0
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[INFO] [stderr]     Checking unicode-bidi v0.3.4
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[INFO] [stderr]    Compiling heapsize_derive v0.1.4
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[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memchr v2.0.1
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[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking socket2 v0.3.4
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling syn v0.13.1
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[INFO] [stderr]     Checking postgres-protocol v0.3.2
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[INFO] [stderr]     Checking postgres-shared v0.4.1
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]     Checking postgres v0.15.2
[INFO] [stderr]     Checking console v0.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]     Checking indicatif v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking backtrace v0.3.6
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]  Documenting rust-state v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/state_map.rs:365:41
[INFO] [stdout]     |
[INFO] [stdout] 365 |     fn from_iter<T: IntoIterator<Item = (((String, String), E))>>(iter: T) -> StateMap<E> {
[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/state_map.rs:380:41
[INFO] [stdout]     |
[INFO] [stdout] 380 |     fn from_iter<T: IntoIterator<Item = (((&'a str, &'a str), E))>>(iter: T) -> StateMap<E> {
[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 58.24s
[INFO] running `Command { std: "docker" "inspect" "ac4e6e38aa90127df5ddf45fa937360f9c943053c4b69f6f3b642341030339c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4e6e38aa90127df5ddf45fa937360f9c943053c4b69f6f3b642341030339c5", kill_on_drop: false }`
[INFO] [stdout] ac4e6e38aa90127df5ddf45fa937360f9c943053c4b69f6f3b642341030339c5