[INFO] updating cached repository https://github.com/Celti/unicode_graph
[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] 66239b44fc882943c56caa6c6359c321831a3758
[INFO] documenting Celti/unicode_graph against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCelti%2Funicode_graph" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Celti/unicode_graph 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/Celti/unicode_graph
[INFO] finished tweaking git repo https://github.com/Celti/unicode_graph
[INFO] tweaked toml for git repo https://github.com/Celti/unicode_graph written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Celti/unicode_graph 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 30bf77756b94fbdf66d244660a64b6ca66564b234943ad600e3764e77effbbec
[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" "30bf77756b94fbdf66d244660a64b6ca66564b234943ad600e3764e77effbbec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30bf77756b94fbdf66d244660a64b6ca66564b234943ad600e3764e77effbbec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30bf77756b94fbdf66d244660a64b6ca66564b234943ad600e3764e77effbbec", kill_on_drop: false }`
[INFO] [stdout] 30bf77756b94fbdf66d244660a64b6ca66564b234943ad600e3764e77effbbec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] ca8a584be6dc1042cdb0b158b179ee65ade7cf35afabe0b2e9c86e80532dc017
[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" "ca8a584be6dc1042cdb0b158b179ee65ade7cf35afabe0b2e9c86e80532dc017", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode_graph v0.9.12 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting unicode_graph v0.9.12 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/braille.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let lines      = max((try!(input.iter().max().ok_or(Error { kind: NoInput })) + 3) / 4, 1);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/braille.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let blocks     = max((try!(input.iter().max().ok_or(Error { kind: NoInput })) + 1) / 2, 1);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]  --> src/graph.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 |         output.push(try!(
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "ca8a584be6dc1042cdb0b158b179ee65ade7cf35afabe0b2e9c86e80532dc017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca8a584be6dc1042cdb0b158b179ee65ade7cf35afabe0b2e9c86e80532dc017", kill_on_drop: false }`
[INFO] [stdout] ca8a584be6dc1042cdb0b158b179ee65ade7cf35afabe0b2e9c86e80532dc017