[INFO] fetching crate vcard4 0.7.2...
[INFO] checking vcard4-0.7.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate vcard4 0.7.2 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate vcard4 0.7.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate vcard4 0.7.2
[INFO] tweaked toml for crates.io crate vcard4 0.7.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vcard4 0.7.2 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 vcard4 0.7.2 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 25b345592dd9fb621e1e0e214bd1b245daf60a5c36882939cd6d67ff8cb9d006
[INFO] running `Command { std: "docker" "start" "-a" "25b345592dd9fb621e1e0e214bd1b245daf60a5c36882939cd6d67ff8cb9d006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25b345592dd9fb621e1e0e214bd1b245daf60a5c36882939cd6d67ff8cb9d006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b345592dd9fb621e1e0e214bd1b245daf60a5c36882939cd6d67ff8cb9d006", kill_on_drop: false }`
[INFO] [stdout] 25b345592dd9fb621e1e0e214bd1b245daf60a5c36882939cd6d67ff8cb9d006
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d1d56a668e49f1e0a158c2e230867a84d5c0bf761ed48269b1ca90b51c3c55be
[INFO] running `Command { std: "docker" "start" "-a" "d1d56a668e49f1e0a158c2e230867a84d5c0bf761ed48269b1ca90b51c3c55be", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.168
[INFO] [stderr]    Compiling rustix v0.38.42
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling thiserror v2.0.6
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking uriparse v0.6.4
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking time v0.3.37
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling logos-codegen v0.15.0
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking tempfile v3.14.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling thiserror-impl v2.0.6
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling logos-derive v0.15.0
[INFO] [stderr]     Checking logos v0.15.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking vcard4 v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking proptest v1.5.0
[INFO] [stdout] warning: value assigned to `geo` is never read
[INFO] [stdout]    --> src/parameter.rs:537:9
[INFO] [stdout]     |
[INFO] [stdout] 537 |     pub geo: Option<Uri>,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `uri` is never read
[INFO] [stdout]    --> src/property.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub uri: Uri,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]    --> src/property.rs:461:9
[INFO] [stdout]     |
[INFO] [stdout] 461 |     pub value: DateTime,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]    --> src/property.rs:741:9
[INFO] [stdout]     |
[INFO] [stdout] 741 |     pub value: UtcOffset,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]    --> src/property.rs:984:9
[INFO] [stdout]     |
[INFO] [stdout] 984 |     pub value: Uri,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `lang` is never read
[INFO] [stdout]    --> src/vcard.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub lang: Vec<LanguageProperty>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rev` is never read
[INFO] [stdout]    --> src/vcard.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub rev: Option<DateTimeProperty>,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> tests/types.rs:311:22
[INFO] [stdout]     |
[INFO] [stdout] 311 |         let m2: u8 = date.month().try_into().unwrap();
[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<u8, Infallible>
[INFO] [stdout]    --> tests/types.rs:344:22
[INFO] [stdout]     |
[INFO] [stdout] 344 |         let m2: u8 = date_time.as_ref().month().try_into().unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vcard4` (test "types") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: value assigned to `geo` is never read
[INFO] [stdout]    --> src/parameter.rs:537:9
[INFO] [stdout]     |
[INFO] [stdout] 537 |     pub geo: Option<Uri>,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `uri` is never read
[INFO] [stdout]    --> src/property.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |     pub uri: Uri,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]    --> src/property.rs:461:9
[INFO] [stdout]     |
[INFO] [stdout] 461 |     pub value: DateTime,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]    --> src/property.rs:741:9
[INFO] [stdout]     |
[INFO] [stdout] 741 |     pub value: UtcOffset,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `value` is never read
[INFO] [stdout]    --> src/property.rs:984:9
[INFO] [stdout]     |
[INFO] [stdout] 984 |     pub value: Uri,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `lang` is never read
[INFO] [stdout]    --> src/vcard.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub lang: Vec<LanguageProperty>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rev` is never read
[INFO] [stdout]    --> src/vcard.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub rev: Option<DateTimeProperty>,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d1d56a668e49f1e0a158c2e230867a84d5c0bf761ed48269b1ca90b51c3c55be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1d56a668e49f1e0a158c2e230867a84d5c0bf761ed48269b1ca90b51c3c55be", kill_on_drop: false }`
[INFO] [stdout] d1d56a668e49f1e0a158c2e230867a84d5c0bf761ed48269b1ca90b51c3c55be
