[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] testing Celti/unicode_graph against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCelti%2Funicode_graph" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Celti/unicode_graph 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 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-11/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" "+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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 9465cb43e049b9eecdfdd051aa87931541e6a5c2bb393534fd9370aef98748c2
[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" "9465cb43e049b9eecdfdd051aa87931541e6a5c2bb393534fd9370aef98748c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9465cb43e049b9eecdfdd051aa87931541e6a5c2bb393534fd9370aef98748c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9465cb43e049b9eecdfdd051aa87931541e6a5c2bb393534fd9370aef98748c2", kill_on_drop: false }`
[INFO] [stdout] 9465cb43e049b9eecdfdd051aa87931541e6a5c2bb393534fd9370aef98748c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 33434e3aa09e96fcd11e6fbfb10e928c9354e63c6161353a93d4d84423e5701b
[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" "33434e3aa09e96fcd11e6fbfb10e928c9354e63c6161353a93d4d84423e5701b", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [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 1.57s
[INFO] running `Command { std: "docker" "inspect" "33434e3aa09e96fcd11e6fbfb10e928c9354e63c6161353a93d4d84423e5701b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33434e3aa09e96fcd11e6fbfb10e928c9354e63c6161353a93d4d84423e5701b", kill_on_drop: false }`
[INFO] [stdout] 33434e3aa09e96fcd11e6fbfb10e928c9354e63c6161353a93d4d84423e5701b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 4a8212ba4bb827110b03d134d7963a6c372c5e17f59d9e48d50fa058eb4b842c
[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" "4a8212ba4bb827110b03d134d7963a6c372c5e17f59d9e48d50fa058eb4b842c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]    Compiling 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: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] [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: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: 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 2.03s
[INFO] running `Command { std: "docker" "inspect" "4a8212ba4bb827110b03d134d7963a6c372c5e17f59d9e48d50fa058eb4b842c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a8212ba4bb827110b03d134d7963a6c372c5e17f59d9e48d50fa058eb4b842c", kill_on_drop: false }`
[INFO] [stdout] 4a8212ba4bb827110b03d134d7963a6c372c5e17f59d9e48d50fa058eb4b842c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] d45342ce2a580ab6da90c2b4668170898e57ed82ebd2148f2d5b1cd08020537f
[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" "d45342ce2a580ab6da90c2b4668170898e57ed82ebd2148f2d5b1cd08020537f", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/braille.rs:33:27
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let lines      = max((try!(input.iter().max().ok_or(Error { kind: NoInput })) + 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:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let blocks     = max((try!(input.iter().max().ok_or(Error { kind: NoInput })) + 1) / 2, 1);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]  --> src/graph.rs:9:21
[INFO] [stderr]   |
[INFO] [stderr] 9 |         output.push(try!(
[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:33:27
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let lines      = max((try!(input.iter().max().ok_or(Error { kind: NoInput })) + 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/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/braille.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let blocks     = max((try!(input.iter().max().ok_or(Error { kind: NoInput })) + 1) / 2, 1);
[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/graph.rs:9:21
[INFO] [stderr]   |
[INFO] [stderr] 9 |         output.push(try!(
[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: 3 warnings emitted
[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: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: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]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unicode_graph-889a70bf79104576
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graph-e2322745302597f1
[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-cf85d74c89d07775
[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] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graph-a3f91e089aed8f18
[INFO] [stdout] test horizontal_graph_full_eight_by_eight ... ok
[INFO] [stderr]    Doc-tests unicode_graph
[INFO] [stdout] test horizontal_graph_incrementing_one_to_eight ... ok
[INFO] [stdout] test vertical_graph_decrementing_eight_to_one ... ok
[INFO] [stdout] test horizontal_graph_decrementing_eight_to_one ... ok
[INFO] [stdout] test vertical_graph_incrementing_one_to_eight ... ok
[INFO] [stdout] test horizontal_graph_empty_eight_by_eight ... ok
[INFO] [stdout] test vertical_graph_full_eight_by_eight ... ok
[INFO] [stdout] test vertical_graph_empty_eight_by_eight ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [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" "d45342ce2a580ab6da90c2b4668170898e57ed82ebd2148f2d5b1cd08020537f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d45342ce2a580ab6da90c2b4668170898e57ed82ebd2148f2d5b1cd08020537f", kill_on_drop: false }`
[INFO] [stdout] d45342ce2a580ab6da90c2b4668170898e57ed82ebd2148f2d5b1cd08020537f