[INFO] cloning repository https://github.com/LunarCoffee/osurate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LunarCoffee/osurate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLunarCoffee%2Fosurate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLunarCoffee%2Fosurate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aac1a91589f5da9a5b86561968b6799316529236
[INFO] checking LunarCoffee/osurate against try#1baf923b9c3a455162afe43e18647f494c1a4b73 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLunarCoffee%2Fosurate" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/LunarCoffee/osurate
[INFO] finished tweaking git repo https://github.com/LunarCoffee/osurate
[INFO] tweaked toml for git repo https://github.com/LunarCoffee/osurate written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LunarCoffee/osurate on toolchain 1baf923b9c3a455162afe43e18647f494c1a4b73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LunarCoffee/osurate 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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.71
[INFO] [stderr]   Downloaded lame v0.1.3
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[INFO] [stderr]   Downloaded futures-sink v0.3.13
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4082c622612733d49ffaa9d892907fb2c59f5005c2d8f2d99e3b758cfad1bbe5
[INFO] running `Command { std: "docker" "start" "-a" "4082c622612733d49ffaa9d892907fb2c59f5005c2d8f2d99e3b758cfad1bbe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4082c622612733d49ffaa9d892907fb2c59f5005c2d8f2d99e3b758cfad1bbe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4082c622612733d49ffaa9d892907fb2c59f5005c2d8f2d99e3b758cfad1bbe5", kill_on_drop: false }`
[INFO] [stdout] 4082c622612733d49ffaa9d892907fb2c59f5005c2d8f2d99e3b758cfad1bbe5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b65d7496a3fe56407a3f6ca7dc6fd8b8b943094f39d873872aacaed557c15995
[INFO] running `Command { std: "docker" "start" "-a" "b65d7496a3fe56407a3f6ca7dc6fd8b8b943094f39d873872aacaed557c15995", kill_on_drop: false }`
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]     Checking dasp_ring_buffer v0.11.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking lame v0.1.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking dasp_frame v0.11.0
[INFO] [stderr]     Checking dasp_window v0.11.0
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking dasp_rms v0.11.0
[INFO] [stderr]     Checking dasp_peak v0.11.0
[INFO] [stderr]     Checking dasp_interpolate v0.11.0
[INFO] [stderr]     Checking dasp_slice v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dasp_envelope v0.11.0
[INFO] [stderr]     Checking dasp_signal v0.11.0
[INFO] [stderr]     Checking dasp v0.11.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking minimp3 v0.5.1
[INFO] [stderr]     Checking osurate v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/beatmap/parser.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `available_concurrency` in module `thread`
[INFO] [stdout]   --> src/audio.rs:73:31
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let concurrency = thread::available_concurrency().map(|n| n.get()).unwrap_or(2);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: `available_parallelism` has a name defined in the doc alias attribute as `available_concurrency`
[INFO] [stdout]    |
[INFO] [stdout] 73 -     let concurrency = thread::available_concurrency().map(|n| n.get()).unwrap_or(2);
[INFO] [stdout] 73 +     let concurrency = thread::available_parallelism().map(|n| n.get()).unwrap_or(2);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: feature `try_trait` has been renamed to `try_trait_v2`
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `available_concurrency`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(available_concurrency)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/beatmap/parser.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/audio.rs:73:60
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let concurrency = thread::available_concurrency().map(|n| n.get()).unwrap_or(2);
[INFO] [stdout]    |                                                            ^  - type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let concurrency = thread::available_concurrency().map(|n: /* Type */| n.get()).unwrap_or(2);
[INFO] [stdout]    |                                                             ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `available_concurrency` in module `thread`
[INFO] [stdout]   --> src/audio.rs:73:31
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let concurrency = thread::available_concurrency().map(|n| n.get()).unwrap_or(2);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: `available_parallelism` has a name defined in the doc alias attribute as `available_concurrency`
[INFO] [stdout]    |
[INFO] [stdout] 73 -     let concurrency = thread::available_concurrency().map(|n| n.get()).unwrap_or(2);
[INFO] [stdout] 73 +     let concurrency = thread::available_parallelism().map(|n| n.get()).unwrap_or(2);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]   --> src/beatmap/parser.rs:44:54
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn parse(&mut self) -> Result<Beatmap> {
[INFO] [stdout]    |     ------------------------------------------ this function returns a `Result`
[INFO] [stdout] 44 |         let header = trim_utf8_bom(self.read_line()?)?;
[INFO] [stdout]    |                                                      ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Beatmap, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]   --> src/beatmap/parser.rs:91:53
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn parse_general_info(&mut self) -> Result<(GeneralInfo, String)> {
[INFO] [stdout]    |     ----------------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 91 |             let (key, value) = line.split_once(": ")?;
[INFO] [stdout]    |                                                     ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<(GeneralInfo, String), ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:111:52
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn parse_metadata(&mut self) -> Result<(Metadata, String)> {
[INFO] [stdout]     |     ---------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 111 |             let (key, value) = line.split_once(":")?;
[INFO] [stdout]     |                                                    ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<(beatmap::Metadata, String), ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:148:58
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 148 |             rest_parts.push(format!("{},{}", split.next()?, split.next()?));
[INFO] [stdout]     |                                                          ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:148:73
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 148 |             rest_parts.push(format!("{},{}", split.next()?, split.next()?));
[INFO] [stdout]     |                                                                         ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:149:45
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 149 |             let time = parse_ff(split.next()?)?;
[INFO] [stdout]     |                                             ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:150:52
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 150 |             let kind = parse_ff::<i32>(split.next()?)?;
[INFO] [stdout]     |                                                    ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:151:64
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 151 |             rest_parts.push(format!("{},{}", kind, split.next()?));
[INFO] [stdout]     |                                                                ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:156:63
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 156 |                 HitObjectParams::Spinner(parse_ff(split.next()?)?)
[INFO] [stdout]     |                                                               ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:158:52
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 158 |                 let end_time = split.clone().next()?.split_once(':')?.0;
[INFO] [stdout]     |                                                    ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:158:69
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 158 |                 let end_time = split.clone().next()?.split_once(':')?.0;
[INFO] [stdout]     |                                                                     ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: feature `try_trait` has been renamed to `try_trait_v2`
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `available_concurrency`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(available_concurrency)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/beatmap/mod.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         for mut point in &mut self.timing_points {
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/beatmap/mod.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         for mut object in &mut self.hit_objects {
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/audio.rs:73:60
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let concurrency = thread::available_concurrency().map(|n| n.get()).unwrap_or(2);
[INFO] [stdout]    |                                                            ^  - type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let concurrency = thread::available_concurrency().map(|n: /* Type */| n.get()).unwrap_or(2);
[INFO] [stdout]    |                                                             ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0282, E0425, E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]   --> src/beatmap/parser.rs:44:54
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn parse(&mut self) -> Result<Beatmap> {
[INFO] [stdout]    |     ------------------------------------------ this function returns a `Result`
[INFO] [stdout] 44 |         let header = trim_utf8_bom(self.read_line()?)?;
[INFO] [stdout]    |                                                      ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Beatmap, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `osurate` (bin "osurate" test) due to 16 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]   --> src/beatmap/parser.rs:91:53
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn parse_general_info(&mut self) -> Result<(GeneralInfo, String)> {
[INFO] [stdout]    |     ----------------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 91 |             let (key, value) = line.split_once(": ")?;
[INFO] [stdout]    |                                                     ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<(GeneralInfo, String), ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:111:52
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn parse_metadata(&mut self) -> Result<(Metadata, String)> {
[INFO] [stdout]     |     ---------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 111 |             let (key, value) = line.split_once(":")?;
[INFO] [stdout]     |                                                    ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<(beatmap::Metadata, String), ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:148:58
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 148 |             rest_parts.push(format!("{},{}", split.next()?, split.next()?));
[INFO] [stdout]     |                                                          ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:148:73
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 148 |             rest_parts.push(format!("{},{}", split.next()?, split.next()?));
[INFO] [stdout]     |                                                                         ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:149:45
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 149 |             let time = parse_ff(split.next()?)?;
[INFO] [stdout]     |                                             ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:150:52
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 150 |             let kind = parse_ff::<i32>(split.next()?)?;
[INFO] [stdout]     |                                                    ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:151:64
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 151 |             rest_parts.push(format!("{},{}", kind, split.next()?));
[INFO] [stdout]     |                                                                ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:156:63
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 156 |                 HitObjectParams::Spinner(parse_ff(split.next()?)?)
[INFO] [stdout]     |                                                               ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:158:52
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 158 |                 let end_time = split.clone().next()?.split_once(':')?.0;
[INFO] [stdout]     |                                                    ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/beatmap/parser.rs:158:69
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn parse_hit_objects(&mut self) -> Result<Vec<HitObject>> {
[INFO] [stdout]     |     --------------------------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 158 |                 let end_time = split.clone().next()?.split_once(':')?.0;
[INFO] [stdout]     |                                                                     ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<Vec<HitObject>, ParseError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/beatmap/mod.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         for mut point in &mut self.timing_points {
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/beatmap/mod.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         for mut object in &mut self.hit_objects {
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0282, E0425, E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `osurate` (bin "osurate") due to 16 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b65d7496a3fe56407a3f6ca7dc6fd8b8b943094f39d873872aacaed557c15995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65d7496a3fe56407a3f6ca7dc6fd8b8b943094f39d873872aacaed557c15995", kill_on_drop: false }`
[INFO] [stdout] b65d7496a3fe56407a3f6ca7dc6fd8b8b943094f39d873872aacaed557c15995
