[INFO] fetching crate microformats-types 0.12.0...
[INFO] checking microformats-types-0.12.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate microformats-types 0.12.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate microformats-types 0.12.0
[INFO] finished tweaking crates.io crate microformats-types 0.12.0
[INFO] tweaked toml for crates.io crate microformats-types 0.12.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate microformats-types 0.12.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 78 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0987462c19d97302e2f00c8406b1d9730596c61c4cd56a30b7d36ad2c626a49a
[INFO] running `Command { std: "docker" "start" "-a" "0987462c19d97302e2f00c8406b1d9730596c61c4cd56a30b7d36ad2c626a49a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0987462c19d97302e2f00c8406b1d9730596c61c4cd56a30b7d36ad2c626a49a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0987462c19d97302e2f00c8406b1d9730596c61c4cd56a30b7d36ad2c626a49a", kill_on_drop: false }`
[INFO] [stdout] 0987462c19d97302e2f00c8406b1d9730596c61c4cd56a30b7d36ad2c626a49a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4ff86dfd42d14ae14845481ea7698475e8768b24b392475533d03d280988934e
[INFO] running `Command { std: "docker" "start" "-a" "4ff86dfd42d14ae14845481ea7698475e8768b24b392475533d03d280988934e", kill_on_drop: false }`
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]     Checking similar v2.7.0
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking yoke v0.8.1
[INFO] [stderr]     Checking zerovec v0.11.5
[INFO] [stderr]     Checking zerotrie v0.2.3
[INFO] [stderr]     Checking tinystr v0.8.2
[INFO] [stderr]     Checking potential_utf v0.1.4
[INFO] [stderr]     Checking icu_collections v2.1.1
[INFO] [stderr]     Checking icu_locale_core v2.1.1
[INFO] [stderr]     Checking icu_provider v2.1.1
[INFO] [stderr]     Checking icu_normalizer v2.1.1
[INFO] [stderr]     Checking icu_properties v2.1.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking time v0.3.44
[INFO] [stderr]     Checking similar-asserts v1.7.0
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking microformats-types v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]    --> src/lib.rs:181:61
[INFO] [stdout]     |
[INFO] [stdout] 181 |       fn from_str(class_str: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________________^
[INFO] [stdout] 182 | |         KnownClass::from_str(class_str)
[INFO] [stdout] 183 | |             .or_else(|_| KnownClass::from_str(&class_str.replace("h-", "")))
[INFO] [stdout] 184 | |             .map(Class::Known)
[INFO] [stdout] 185 | |             .or_else(|_| Ok(Self::Custom(class_str.trim_start_matches("h-").to_string())))
[INFO] [stdout] 186 | |     }
[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<Class, Infallible>
[INFO] [stdout]    --> src/lib.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 | /         KnownClass::from_str(class_str)
[INFO] [stdout] 183 | |             .or_else(|_| KnownClass::from_str(&class_str.replace("h-", "")))
[INFO] [stdout] 184 | |             .map(Class::Known)
[INFO] [stdout] 185 | |             .or_else(|_| Ok(Self::Custom(class_str.trim_start_matches("h-").to_string())))
[INFO] [stdout]     | |__________________________________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]    --> src/lib.rs:185:26
[INFO] [stdout]     |
[INFO] [stdout] 185 |             .or_else(|_| Ok(Self::Custom(class_str.trim_start_matches("h-").to_string())))
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]    --> src/lib.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         Class::from_str(class_str).map_err(|e| E::custom(e.to_string()))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microformats-types` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]    --> src/lib.rs:181:61
[INFO] [stdout]     |
[INFO] [stdout] 181 |       fn from_str(class_str: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________________^
[INFO] [stdout] 182 | |         KnownClass::from_str(class_str)
[INFO] [stdout] 183 | |             .or_else(|_| KnownClass::from_str(&class_str.replace("h-", "")))
[INFO] [stdout] 184 | |             .map(Class::Known)
[INFO] [stdout] 185 | |             .or_else(|_| Ok(Self::Custom(class_str.trim_start_matches("h-").to_string())))
[INFO] [stdout] 186 | |     }
[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<Class, Infallible>
[INFO] [stdout]    --> src/lib.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 | /         KnownClass::from_str(class_str)
[INFO] [stdout] 183 | |             .or_else(|_| KnownClass::from_str(&class_str.replace("h-", "")))
[INFO] [stdout] 184 | |             .map(Class::Known)
[INFO] [stdout] 185 | |             .or_else(|_| Ok(Self::Custom(class_str.trim_start_matches("h-").to_string())))
[INFO] [stdout]     | |__________________________________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]    --> src/lib.rs:185:26
[INFO] [stdout]     |
[INFO] [stdout] 185 |             .or_else(|_| Ok(Self::Custom(class_str.trim_start_matches("h-").to_string())))
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]    --> src/lib.rs:230:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |         Class::from_str(class_str).map_err(|e| E::custom(e.to_string()))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     assert_eq!("h-entry".parse(), Ok(Class::Known(KnownClass::Entry)));
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:11:35
[INFO] [stdout]    |
[INFO] [stdout] 11 |     assert_eq!("h-entry".parse(), Ok(Class::Known(KnownClass::Entry)));
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     assert_eq!("h-entry".parse(), Ok(Class::Known(KnownClass::Entry)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     assert_eq!("h-entry".parse(), Ok(Class::Known(KnownClass::Entry)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (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<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |     assert_eq!("entry".parse(), Ok(Class::Known(KnownClass::Entry)));
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:12:33
[INFO] [stdout]    |
[INFO] [stdout] 12 |     assert_eq!("entry".parse(), Ok(Class::Known(KnownClass::Entry)));
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     assert_eq!("entry".parse(), Ok(Class::Known(KnownClass::Entry)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     assert_eq!("entry".parse(), Ok(Class::Known(KnownClass::Entry)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (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<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     assert_eq!("h-card".parse(), Ok(Class::Known(KnownClass::Card)));
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 |     assert_eq!("h-card".parse(), Ok(Class::Known(KnownClass::Card)));
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     assert_eq!("h-card".parse(), Ok(Class::Known(KnownClass::Card)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     assert_eq!("h-card".parse(), Ok(Class::Known(KnownClass::Card)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (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<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     assert_eq!("card".parse(), Ok(Class::Known(KnownClass::Card)));
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:14:32
[INFO] [stdout]    |
[INFO] [stdout] 14 |     assert_eq!("card".parse(), Ok(Class::Known(KnownClass::Card)));
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     assert_eq!("card".parse(), Ok(Class::Known(KnownClass::Card)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     assert_eq!("card".parse(), Ok(Class::Known(KnownClass::Card)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (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<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |     assert_eq!("h-magic".parse(), Ok(Class::Custom("magic".to_string())));
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:39:35
[INFO] [stdout]    |
[INFO] [stdout] 39 |     assert_eq!("h-magic".parse(), Ok(Class::Custom("magic".to_string())));
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     assert_eq!("h-magic".parse(), Ok(Class::Custom("magic".to_string())));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Class, Infallible>
[INFO] [stdout]   --> src/test.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     assert_eq!("h-magic".parse(), Ok(Class::Custom("magic".to_string())));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microformats-types` (lib test) due to 24 previous errors
[INFO] running `Command { std: "docker" "inspect" "4ff86dfd42d14ae14845481ea7698475e8768b24b392475533d03d280988934e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff86dfd42d14ae14845481ea7698475e8768b24b392475533d03d280988934e", kill_on_drop: false }`
[INFO] [stdout] 4ff86dfd42d14ae14845481ea7698475e8768b24b392475533d03d280988934e
