[INFO] fetching crate mufmt 0.4.2...
[INFO] checking mufmt-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mufmt 0.4.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate mufmt 0.4.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mufmt 0.4.2
[INFO] tweaked toml for crates.io crate mufmt 0.4.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mufmt 0.4.2 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 crates.io crate mufmt 0.4.2 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] [stderr]     Blocking waiting for file lock on package cache
[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] 2c082c891f2e2b940209580d1c23db5c935fd7b3ab52306b6e55be196c2eec86
[INFO] running `Command { std: "docker" "start" "-a" "2c082c891f2e2b940209580d1c23db5c935fd7b3ab52306b6e55be196c2eec86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c082c891f2e2b940209580d1c23db5c935fd7b3ab52306b6e55be196c2eec86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c082c891f2e2b940209580d1c23db5c935fd7b3ab52306b6e55be196c2eec86", kill_on_drop: false }`
[INFO] [stdout] 2c082c891f2e2b940209580d1c23db5c935fd7b3ab52306b6e55be196c2eec86
[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] 5e4df1108ce5efc01229c64843e9c9e1c4bdbcc92c7a2e3a743bcb8006975945
[INFO] running `Command { std: "docker" "start" "-a" "5e4df1108ce5efc01229c64843e9c9e1c4bdbcc92c7a2e3a743bcb8006975945", kill_on_drop: false }`
[INFO] [stderr]     Checking mufmt v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this type continue be must used: Result<Result<T, <T as Ast<'_>>::Error>, Infallible>
[INFO] [stdout]   --> src/types/ast.rs:97:64
[INFO] [stdout]    |
[INFO] [stdout] 97 |       fn from_expr(expr: &'fmt str) -> Result<Self, Self::Error> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 98 | |         Ok(T::from_expr(expr))
[INFO] [stdout] 99 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mustuse_in_always_ok)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<Result<T, <T as Ast<'_>>::Error>, Infallible>
[INFO] [stdout]   --> src/types/ast.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         Ok(T::from_expr(expr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:50:68
[INFO] [stdout]     |
[INFO] [stdout]  50 |                   fn from_expr(s: &str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout]  51 | |                     ::std::str::FromStr::from_str(s)
[INFO] [stdout]  52 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / ast_from_str!(
[INFO] [stdout] 137 | |     // str types
[INFO] [stdout] 138 | |     String,
[INFO] [stdout] 139 | |     PathBuf,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |     f64
[INFO] [stdout] 177 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `ast_from_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:51:21
[INFO] [stdout]     |
[INFO] [stdout]  51 |                       ::std::str::FromStr::from_str(s)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / ast_from_str!(
[INFO] [stdout] 137 | |     // str types
[INFO] [stdout] 138 | |     String,
[INFO] [stdout] 139 | |     PathBuf,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |     f64
[INFO] [stdout] 177 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ast_from_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:50:68
[INFO] [stdout]     |
[INFO] [stdout]  50 |                   fn from_expr(s: &str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout]  51 | |                     ::std::str::FromStr::from_str(s)
[INFO] [stdout]  52 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / ast_from_str!(
[INFO] [stdout] 137 | |     // str types
[INFO] [stdout] 138 | |     String,
[INFO] [stdout] 139 | |     PathBuf,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |     f64
[INFO] [stdout] 177 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ast_from_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:51:21
[INFO] [stdout]     |
[INFO] [stdout]  51 |                       ::std::str::FromStr::from_str(s)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / ast_from_str!(
[INFO] [stdout] 137 | |     // str types
[INFO] [stdout] 138 | |     String,
[INFO] [stdout] 139 | |     PathBuf,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |     f64
[INFO] [stdout] 177 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ast_from_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:182:61
[INFO] [stdout]     |
[INFO] [stdout] 182 |       fn from_expr(s: &'fmt str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  _____________________________________________________________^
[INFO] [stdout] 183 | |         Ok(s)
[INFO] [stdout] 184 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |         Ok(s)
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&Path, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:190:61
[INFO] [stdout]     |
[INFO] [stdout] 190 |       fn from_expr(s: &'fmt str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  _____________________________________________________________^
[INFO] [stdout] 191 | |         Ok(Path::new(s))
[INFO] [stdout] 192 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&Path, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         Ok(Path::new(s))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IgnoredAny, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:218:56
[INFO] [stdout]     |
[INFO] [stdout] 218 |       fn from_expr(_: &str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________^
[INFO] [stdout] 219 | |         Ok(Self)
[INFO] [stdout] 220 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IgnoredAny, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         Ok(Self)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&T, Infallible>
[INFO] [stdout]   --> src/types/manifest.rs:76:82
[INFO] [stdout]    |
[INFO] [stdout] 76 |       fn manifest(&self, ast: &BoundedInt<N>) -> Result<impl Display, Self::Error> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 77 | |         Ok(unsafe { self.as_slice().get_unchecked(usize::from(*ast)) })
[INFO] [stdout] 78 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&T, Infallible>
[INFO] [stdout]   --> src/types/manifest.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         Ok(unsafe { self.as_slice().get_unchecked(usize::from(*ast)) })
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mufmt` (lib) due to 12 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<&str, Infallible>
[INFO] [stdout]    --> src/tests.rs:210:91
[INFO] [stdout]     |
[INFO] [stdout] 210 |       fn ident_lifetime<'fmt>(s: &&'fmt str) -> Result<&'fmt str, std::convert::Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________________^
[INFO] [stdout] 211 | |         Ok(s)
[INFO] [stdout] 212 | |     }
[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<&str, Infallible>
[INFO] [stdout]    --> src/tests.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         Ok(s)
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/tests.rs:214:16
[INFO] [stdout]     |
[INFO] [stdout] 214 |     assert_eq!(template.render(&ident_lifetime).unwrap(), "sh");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<Result<T, <T as Ast<'_>>::Error>, Infallible>
[INFO] [stdout]   --> src/types/ast.rs:97:64
[INFO] [stdout]    |
[INFO] [stdout] 97 |       fn from_expr(expr: &'fmt str) -> Result<Self, Self::Error> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 98 | |         Ok(T::from_expr(expr))
[INFO] [stdout] 99 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mustuse_in_always_ok)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<Result<T, <T as Ast<'_>>::Error>, Infallible>
[INFO] [stdout]   --> src/types/ast.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         Ok(T::from_expr(expr))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:50:68
[INFO] [stdout]     |
[INFO] [stdout]  50 |                   fn from_expr(s: &str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout]  51 | |                     ::std::str::FromStr::from_str(s)
[INFO] [stdout]  52 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / ast_from_str!(
[INFO] [stdout] 137 | |     // str types
[INFO] [stdout] 138 | |     String,
[INFO] [stdout] 139 | |     PathBuf,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |     f64
[INFO] [stdout] 177 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ast_from_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:51:21
[INFO] [stdout]     |
[INFO] [stdout]  51 |                       ::std::str::FromStr::from_str(s)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / ast_from_str!(
[INFO] [stdout] 137 | |     // str types
[INFO] [stdout] 138 | |     String,
[INFO] [stdout] 139 | |     PathBuf,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |     f64
[INFO] [stdout] 177 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ast_from_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:50:68
[INFO] [stdout]     |
[INFO] [stdout]  50 |                   fn from_expr(s: &str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout]  51 | |                     ::std::str::FromStr::from_str(s)
[INFO] [stdout]  52 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / ast_from_str!(
[INFO] [stdout] 137 | |     // str types
[INFO] [stdout] 138 | |     String,
[INFO] [stdout] 139 | |     PathBuf,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |     f64
[INFO] [stdout] 177 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ast_from_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:51:21
[INFO] [stdout]     |
[INFO] [stdout]  51 |                       ::std::str::FromStr::from_str(s)
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / ast_from_str!(
[INFO] [stdout] 137 | |     // str types
[INFO] [stdout] 138 | |     String,
[INFO] [stdout] 139 | |     PathBuf,
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |     f64
[INFO] [stdout] 177 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `ast_from_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:182:61
[INFO] [stdout]     |
[INFO] [stdout] 182 |       fn from_expr(s: &'fmt str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  _____________________________________________________________^
[INFO] [stdout] 183 | |         Ok(s)
[INFO] [stdout] 184 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |         Ok(s)
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&Path, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:190:61
[INFO] [stdout]     |
[INFO] [stdout] 190 |       fn from_expr(s: &'fmt str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  _____________________________________________________________^
[INFO] [stdout] 191 | |         Ok(Path::new(s))
[INFO] [stdout] 192 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&Path, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         Ok(Path::new(s))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IgnoredAny, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:218:56
[INFO] [stdout]     |
[INFO] [stdout] 218 |       fn from_expr(_: &str) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ________________________________________________________^
[INFO] [stdout] 219 | |         Ok(Self)
[INFO] [stdout] 220 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<IgnoredAny, Infallible>
[INFO] [stdout]    --> src/types/ast.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         Ok(Self)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&T, Infallible>
[INFO] [stdout]   --> src/types/manifest.rs:76:82
[INFO] [stdout]    |
[INFO] [stdout] 76 |       fn manifest(&self, ast: &BoundedInt<N>) -> Result<impl Display, Self::Error> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 77 | |         Ok(unsafe { self.as_slice().get_unchecked(usize::from(*ast)) })
[INFO] [stdout] 78 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&T, Infallible>
[INFO] [stdout]   --> src/types/manifest.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         Ok(unsafe { self.as_slice().get_unchecked(usize::from(*ast)) })
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mufmt` (lib test) due to 15 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5e4df1108ce5efc01229c64843e9c9e1c4bdbcc92c7a2e3a743bcb8006975945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e4df1108ce5efc01229c64843e9c9e1c4bdbcc92c7a2e3a743bcb8006975945", kill_on_drop: false }`
[INFO] [stdout] 5e4df1108ce5efc01229c64843e9c9e1c4bdbcc92c7a2e3a743bcb8006975945
