[INFO] cloning repository https://github.com/kurtbuilds/lst
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kurtbuilds/lst" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Flst", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Flst'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38235d3a2dfb1283da45cc150f63e073ae6c6dfd
[INFO] checking kurtbuilds/lst against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Flst" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kurtbuilds/lst
[INFO] finished tweaking git repo https://github.com/kurtbuilds/lst
[INFO] tweaked toml for git repo https://github.com/kurtbuilds/lst written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kurtbuilds/lst on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kurtbuilds/lst already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58b21736e42c4c431c56b16f07fed1fa49e97230aef6ef3d612baaa039371ee4
[INFO] running `Command { std: "docker" "start" "-a" "58b21736e42c4c431c56b16f07fed1fa49e97230aef6ef3d612baaa039371ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58b21736e42c4c431c56b16f07fed1fa49e97230aef6ef3d612baaa039371ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58b21736e42c4c431c56b16f07fed1fa49e97230aef6ef3d612baaa039371ee4", kill_on_drop: false }`
[INFO] [stdout] 58b21736e42c4c431c56b16f07fed1fa49e97230aef6ef3d612baaa039371ee4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5959f4a207574338263035ebc4a79825c113a86935caa7f49ea01736f228acd5
[INFO] running `Command { std: "docker" "start" "-a" "5959f4a207574338263035ebc4a79825c113a86935caa7f49ea01736f228acd5", kill_on_drop: false }`
[INFO] [stderr]     Checking str_indices v0.4.4
[INFO] [stderr]     Checking ropey v1.6.1
[INFO] [stderr]     Checking lst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<node::Node<value::Value>>, Infallible>
[INFO] [stdout]   --> src/lib.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let dom = Offset::<Node<Value>>::try_parse(buf).expect("error is infallible");
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<node::Node<value::Value>>, Infallible>
[INFO] [stdout]   --> src/tokens/pair.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let value = Offset::<Node<Value>>::try_parse(content.offset(offset)).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<Option<tokens::Comma>>, Infallible>
[INFO] [stdout]   --> src/tokens/pair.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let comma = Offset::<Option<Comma>>::try_parse(content.offset(offset)).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<node::Node<value::Value>>, Infallible>
[INFO] [stdout]   --> src/tokens/item.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let item = Offset::<Node<Value>>::try_parse(content.offset(0)).unwrap();
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<Option<tokens::Comma>>, Infallible>
[INFO] [stdout]   --> src/tokens/item.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let comma = Offset::<Option<Comma>>::try_parse(content.offset(item.width())).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/source.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn linearize(&self) -> LinearizeBuffer {
[INFO] [stdout]    |                      ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn linearize(&self) -> LinearizeBuffer<'_> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<T>, Infallible>
[INFO] [stdout]   --> src/parse.rs:17:67
[INFO] [stdout]    |
[INFO] [stdout] 17 |       fn try_parse(content: Buffer<'_>) -> Result<Self, Infallible> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 18 | |         Ok(T::try_parse(content).ok())
[INFO] [stdout] 19 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<T>, Infallible>
[INFO] [stdout]   --> src/parse.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Ok(T::try_parse(content).ok())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<node::Node<value::Value>, Infallible>
[INFO] [stdout]    --> src/parse.rs:98:72
[INFO] [stdout]     |
[INFO] [stdout]  98 |       fn try_parse(mut content: Buffer<'_>) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout]  99 | |         let mut chars = content.chars();
[INFO] [stdout] 100 | |         let Some(c) = chars.next() else {
[INFO] [stdout] 101 | |             return Ok(Node(0, Value::Invalid(ParseError::new("Empty content"))));
[INFO] [stdout] ...   |
[INFO] [stdout] 114 | |         Ok(res.unwrap_or_else(|e| Node(len, Value::Invalid(e))))
[INFO] [stdout] 115 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<node::Node<value::Value>, Infallible>
[INFO] [stdout]    --> src/parse.rs:101:20
[INFO] [stdout]     |
[INFO] [stdout] 101 |             return Ok(Node(0, Value::Invalid(ParseError::new("Empty content"))));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<node::Node<value::Value>, Infallible>
[INFO] [stdout]    --> src/parse.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 return Ok(Node(len, Value::Invalid(ParseError::new("Invalid value"))));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<node::Node<value::Value>, Infallible>
[INFO] [stdout]    --> src/parse.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         Ok(res.unwrap_or_else(|e| Node(len, Value::Invalid(e))))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lst` (lib) due to 11 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<node::Node<value::Value>>, Infallible>
[INFO] [stdout]   --> src/lib.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let dom = Offset::<Node<Value>>::try_parse(buf).expect("error is infallible");
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<node::Node<value::Value>>, Infallible>
[INFO] [stdout]   --> src/tokens/pair.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let value = Offset::<Node<Value>>::try_parse(content.offset(offset)).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<Option<tokens::Comma>>, Infallible>
[INFO] [stdout]   --> src/tokens/pair.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let comma = Offset::<Option<Comma>>::try_parse(content.offset(offset)).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<node::Node<value::Value>>, Infallible>
[INFO] [stdout]   --> src/tokens/item.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let item = Offset::<Node<Value>>::try_parse(content.offset(0)).unwrap();
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<offset::Offset<Option<tokens::Comma>>, Infallible>
[INFO] [stdout]   --> src/tokens/item.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let comma = Offset::<Option<Comma>>::try_parse(content.offset(item.width())).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/source.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn linearize(&self) -> LinearizeBuffer {
[INFO] [stdout]    |                      ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn linearize(&self) -> LinearizeBuffer<'_> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<T>, Infallible>
[INFO] [stdout]   --> src/parse.rs:17:67
[INFO] [stdout]    |
[INFO] [stdout] 17 |       fn try_parse(content: Buffer<'_>) -> Result<Self, Infallible> {
[INFO] [stdout]    |  ___________________________________________________________________^
[INFO] [stdout] 18 | |         Ok(T::try_parse(content).ok())
[INFO] [stdout] 19 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<T>, Infallible>
[INFO] [stdout]   --> src/parse.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Ok(T::try_parse(content).ok())
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<node::Node<value::Value>, Infallible>
[INFO] [stdout]    --> src/parse.rs:98:72
[INFO] [stdout]     |
[INFO] [stdout]  98 |       fn try_parse(mut content: Buffer<'_>) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________________________^
[INFO] [stdout]  99 | |         let mut chars = content.chars();
[INFO] [stdout] 100 | |         let Some(c) = chars.next() else {
[INFO] [stdout] 101 | |             return Ok(Node(0, Value::Invalid(ParseError::new("Empty content"))));
[INFO] [stdout] ...   |
[INFO] [stdout] 114 | |         Ok(res.unwrap_or_else(|e| Node(len, Value::Invalid(e))))
[INFO] [stdout] 115 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<node::Node<value::Value>, Infallible>
[INFO] [stdout]    --> src/parse.rs:101:20
[INFO] [stdout]     |
[INFO] [stdout] 101 |             return Ok(Node(0, Value::Invalid(ParseError::new("Empty content"))));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<node::Node<value::Value>, Infallible>
[INFO] [stdout]    --> src/parse.rs:111:24
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 return Ok(Node(len, Value::Invalid(ParseError::new("Invalid value"))));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<node::Node<value::Value>, Infallible>
[INFO] [stdout]    --> src/parse.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         Ok(res.unwrap_or_else(|e| Node(len, Value::Invalid(e))))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lst` (lib test) due to 11 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5959f4a207574338263035ebc4a79825c113a86935caa7f49ea01736f228acd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5959f4a207574338263035ebc4a79825c113a86935caa7f49ea01736f228acd5", kill_on_drop: false }`
[INFO] [stdout] 5959f4a207574338263035ebc4a79825c113a86935caa7f49ea01736f228acd5
