[INFO] crate unicode_graph 0.9.11 is already in cache
[INFO] testing unicode_graph-0.9.11 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate unicode_graph 0.9.11 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate unicode_graph 0.9.11 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unicode_graph 0.9.11
[INFO] finished tweaking crates.io crate unicode_graph 0.9.11
[INFO] tweaked toml for crates.io crate unicode_graph 0.9.11 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac452b7ebf617ea0a372c623831b359b7b78b023360caf4ffc0ca9bb235360e3
[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" "ac452b7ebf617ea0a372c623831b359b7b78b023360caf4ffc0ca9bb235360e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac452b7ebf617ea0a372c623831b359b7b78b023360caf4ffc0ca9bb235360e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac452b7ebf617ea0a372c623831b359b7b78b023360caf4ffc0ca9bb235360e3", kill_on_drop: false }`
[INFO] [stdout] ac452b7ebf617ea0a372c623831b359b7b78b023360caf4ffc0ca9bb235360e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTFLAGS=--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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 326af82a7608e89b0fe0b2fa8e23606fb69120318c82ab5680b33d8b7f4f52cc
[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" "326af82a7608e89b0fe0b2fa8e23606fb69120318c82ab5680b33d8b7f4f52cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode_graph v0.9.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/braille.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let lines      = max((try!(input.iter().max().ok_or(ParseGraphError)) + 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:53:27
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let blocks     = max((try!(input.iter().max().ok_or(ParseGraphError)) + 1) / 2, 1);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:36:29
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 string.push(try!(char::from_u32(*block).ok_or(ParseGraphError)))
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let input: Vec<usize> = try!(argv.into_iter().map(|i| i.trim().parse()).collect());
[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/bin/graph.rs:79:27
[INFO] [stdout]    |
[INFO] [stdout] 79 |         "horizontal" => { try!(braille::horizontal_graph(reverse, input)) }
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:80:27
[INFO] [stdout]    |
[INFO] [stdout] 80 |         "vertical"   => { try!(braille::vertical_graph(reverse, input)) }
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |     for line in try!(graph::graph_to_strings(graph)) {
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "326af82a7608e89b0fe0b2fa8e23606fb69120318c82ab5680b33d8b7f4f52cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "326af82a7608e89b0fe0b2fa8e23606fb69120318c82ab5680b33d8b7f4f52cc", kill_on_drop: false }`
[INFO] [stdout] 326af82a7608e89b0fe0b2fa8e23606fb69120318c82ab5680b33d8b7f4f52cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTFLAGS=--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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bfecd0dd80fb0be3b7769b453a05d823ad1618eb3999b34656b5e40ea6db65c
[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" "4bfecd0dd80fb0be3b7769b453a05d823ad1618eb3999b34656b5e40ea6db65c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode_graph v0.9.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/braille.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let lines      = max((try!(input.iter().max().ok_or(ParseGraphError)) + 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:53:27
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let blocks     = max((try!(input.iter().max().ok_or(ParseGraphError)) + 1) / 2, 1);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:36:29
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 string.push(try!(char::from_u32(*block).ok_or(ParseGraphError)))
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let input: Vec<usize> = try!(argv.into_iter().map(|i| i.trim().parse()).collect());
[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/bin/graph.rs:79:27
[INFO] [stdout]    |
[INFO] [stdout] 79 |         "horizontal" => { try!(braille::horizontal_graph(reverse, input)) }
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:80:27
[INFO] [stdout]    |
[INFO] [stdout] 80 |         "vertical"   => { try!(braille::vertical_graph(reverse, input)) }
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |     for line in try!(graph::graph_to_strings(graph)) {
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let input: Vec<usize> = try!(argv.into_iter().map(|i| i.trim().parse()).collect());
[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/bin/graph.rs:79:27
[INFO] [stdout]    |
[INFO] [stdout] 79 |         "horizontal" => { try!(braille::horizontal_graph(reverse, input)) }
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:80:27
[INFO] [stdout]    |
[INFO] [stdout] 80 |         "vertical"   => { try!(braille::vertical_graph(reverse, input)) }
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/bin/graph.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |     for line in try!(graph::graph_to_strings(graph)) {
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/braille.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let lines      = max((try!(input.iter().max().ok_or(ParseGraphError)) + 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:53:27
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let blocks     = max((try!(input.iter().max().ok_or(ParseGraphError)) + 1) / 2, 1);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:36:29
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 string.push(try!(char::from_u32(*block).ok_or(ParseGraphError)))
[INFO] [stdout]    |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "4bfecd0dd80fb0be3b7769b453a05d823ad1618eb3999b34656b5e40ea6db65c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bfecd0dd80fb0be3b7769b453a05d823ad1618eb3999b34656b5e40ea6db65c", kill_on_drop: false }`
[INFO] [stdout] 4bfecd0dd80fb0be3b7769b453a05d823ad1618eb3999b34656b5e40ea6db65c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTFLAGS=--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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 83f89066c3338c1739a8b380dd761198733772a713372fbbf40a24b2644e07c3
[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" "83f89066c3338c1739a8b380dd761198733772a713372fbbf40a24b2644e07c3", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/braille.rs:30:27
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let lines      = max((try!(input.iter().max().ok_or(ParseGraphError)) + 3) / 4, 1);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/braille.rs:53:27
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let blocks     = max((try!(input.iter().max().ok_or(ParseGraphError)) + 1) / 2, 1);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:36:29
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 string.push(try!(char::from_u32(*block).ok_or(ParseGraphError)))
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/braille.rs:30:27
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let lines      = max((try!(input.iter().max().ok_or(ParseGraphError)) + 3) / 4, 1);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/braille.rs:53:27
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let blocks     = max((try!(input.iter().max().ok_or(ParseGraphError)) + 1) / 2, 1);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:36:29
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 string.push(try!(char::from_u32(*block).ok_or(ParseGraphError)))
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bin/graph.rs:76:29
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let input: Vec<usize> = try!(argv.into_iter().map(|i| i.trim().parse()).collect());
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bin/graph.rs:76:29
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let input: Vec<usize> = try!(argv.into_iter().map(|i| i.trim().parse()).collect());
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bin/graph.rs:79:27
[INFO] [stderr]    |
[INFO] [stderr] 79 |         "horizontal" => { try!(braille::horizontal_graph(reverse, input)) }
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bin/graph.rs:79:27
[INFO] [stderr]    |
[INFO] [stderr] 79 |         "horizontal" => { try!(braille::horizontal_graph(reverse, input)) }
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bin/graph.rs:80:27
[INFO] [stderr]    |
[INFO] [stderr] 80 |         "vertical"   => { try!(braille::vertical_graph(reverse, input)) }
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bin/graph.rs:80:27
[INFO] [stderr]    |
[INFO] [stderr] 80 |         "vertical"   => { try!(braille::vertical_graph(reverse, input)) }
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bin/graph.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |     for line in try!(graph::graph_to_strings(graph)) {
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bin/graph.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |     for line in try!(graph::graph_to_strings(graph)) {
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unicode_graph-5cfb6229ef948ac1
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graph-1e3e93b002b1d40b
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/braille_graph-80a63cf741bb6dab
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test horizontal_graph_empty_eight_by_eight ... ok
[INFO] [stdout] test horizontal_graph_decrementing_eight_to_one ... ok
[INFO] [stdout] test horizontal_graph_full_eight_by_eight ... ok
[INFO] [stdout] test horizontal_graph_incrementing_one_to_eight ... ok
[INFO] [stdout] test vertical_graph_decrementing_eight_to_one ... ok
[INFO] [stdout] test vertical_graph_empty_eight_by_eight ... ok
[INFO] [stdout] test vertical_graph_full_eight_by_eight ... ok
[INFO] [stdout] test vertical_graph_incrementing_one_to_eight ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graph-8e67a3623e423ee8
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test graph_to_strings_render_braille_decrementing_eight_to_one ... ok
[INFO] [stdout] test graph_to_strings_render_braille_full_eight_by_eight ... ok
[INFO] [stdout] test graph_to_strings_render_braille_incrementing_one_to_eight ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unicode_graph
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "83f89066c3338c1739a8b380dd761198733772a713372fbbf40a24b2644e07c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83f89066c3338c1739a8b380dd761198733772a713372fbbf40a24b2644e07c3", kill_on_drop: false }`
[INFO] [stdout] 83f89066c3338c1739a8b380dd761198733772a713372fbbf40a24b2644e07c3