[INFO] cloning repository https://github.com/shunak/exercise-html
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shunak/exercise-html" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunak%2Fexercise-html", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunak%2Fexercise-html'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 776eb66fef2ac0ad60a8fa36ac7a8a924e66ccaa
[INFO] checking shunak/exercise-html against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshunak%2Fexercise-html" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shunak/exercise-html on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shunak/exercise-html
[INFO] finished tweaking git repo https://github.com/shunak/exercise-html
[INFO] tweaked toml for git repo https://github.com/shunak/exercise-html written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/shunak/exercise-html already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3dcde6f5657faeeab6d3d1562bfe00e2bc8aeec1615b3a426a63e719c920525
[INFO] running `Command { std: "docker" "start" "-a" "e3dcde6f5657faeeab6d3d1562bfe00e2bc8aeec1615b3a426a63e719c920525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3dcde6f5657faeeab6d3d1562bfe00e2bc8aeec1615b3a426a63e719c920525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3dcde6f5657faeeab6d3d1562bfe00e2bc8aeec1615b3a426a63e719c920525", kill_on_drop: false }`
[INFO] [stdout] e3dcde6f5657faeeab6d3d1562bfe00e2bc8aeec1615b3a426a63e719c920525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ec4886d9280a3778a834f1ef65b3b1fa10489ff55cd1d92cea2fc6be33f49a9
[INFO] running `Command { std: "docker" "start" "-a" "7ec4886d9280a3778a834f1ef65b3b1fa10489ff55cd1d92cea2fc6be33f49a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking combine v4.5.2
[INFO] [stderr]     Checking exercise-html v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `StreamError`, `StringStreamError`, `attempt`
[INFO] [stdout]  --> src/html.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     attempt,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 5 |     error::{StreamError, StringStreamError},
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `StreamError`, `StringStreamError`, `attempt`
[INFO] [stdout]  --> src/html.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     attempt,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 5 |     error::{StreamError, StringStreamError},
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 57 |     (char(' ')).map(|_| ("".to_string(), AttrMap::new()))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 67 |     (char(' ')).map(|_| ("".to_string()))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 77 |     (char(' ')).map(|_| vec![Element::new("".into(), AttrMap::new(), vec![])])
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 87 |     (char(' ')).map(|_| Element::new("".into(), AttrMap::new(), vec![]))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 97 |     (char(' ')).map(|_| Element::new("".into(), AttrMap::new(), vec![]))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `attribute`
[INFO] [stdout]   --> src/html.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn attribute<Input>() -> impl Parser<Input, Output = (String, String)>
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `attributes`
[INFO] [stdout]   --> src/html.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn attributes<Input>() -> impl Parser<Input, Output = AttrMap>
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `open_tag`
[INFO] [stdout]   --> src/html.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn open_tag<Input>() -> impl Parser<Input, Output = (String, AttrMap)>
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `close_tag`
[INFO] [stdout]   --> src/html.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn close_tag<Input>() -> impl Parser<Input, Output = String>
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `text`
[INFO] [stdout]   --> src/html.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn text<Input>() -> impl Parser<Input, Output = Box<Node>>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `element`
[INFO] [stdout]   --> src/html.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn element<Input>() -> impl Parser<Input, Output = Box<Node>>
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 57 |     (char(' ')).map(|_| ("".to_string(), AttrMap::new()))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 67 |     (char(' ')).map(|_| ("".to_string()))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 77 |     (char(' ')).map(|_| vec![Element::new("".into(), AttrMap::new(), vec![])])
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 87 |     (char(' ')).map(|_| Element::new("".into(), AttrMap::new(), vec![]))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/html.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     todo!("you need to implement this combinator");
[INFO] [stdout]    |     ----------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 97 |     (char(' ')).map(|_| Element::new("".into(), AttrMap::new(), vec![]))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `open_tag`
[INFO] [stdout]   --> src/html.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn open_tag<Input>() -> impl Parser<Input, Output = (String, AttrMap)>
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `close_tag`
[INFO] [stdout]   --> src/html.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn close_tag<Input>() -> impl Parser<Input, Output = String>
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `text`
[INFO] [stdout]   --> src/html.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn text<Input>() -> impl Parser<Input, Output = Box<Node>>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `element`
[INFO] [stdout]   --> src/html.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn element<Input>() -> impl Parser<Input, Output = Box<Node>>
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.99s
[INFO] running `Command { std: "docker" "inspect" "7ec4886d9280a3778a834f1ef65b3b1fa10489ff55cd1d92cea2fc6be33f49a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec4886d9280a3778a834f1ef65b3b1fa10489ff55cd1d92cea2fc6be33f49a9", kill_on_drop: false }`
[INFO] [stdout] 7ec4886d9280a3778a834f1ef65b3b1fa10489ff55cd1d92cea2fc6be33f49a9