[INFO] fetching crate packbits 0.1.1...
[INFO] checking packbits-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate packbits 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate packbits 0.1.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate packbits 0.1.1
[INFO] tweaked toml for crates.io crate packbits 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate packbits 0.1.1 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 packbits 0.1.1 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-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] 4aede5eff5dfec4c2ee5b416875a4c0e46010519b289e03d608d793302da1eb6
[INFO] running `Command { std: "docker" "start" "-a" "4aede5eff5dfec4c2ee5b416875a4c0e46010519b289e03d608d793302da1eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4aede5eff5dfec4c2ee5b416875a4c0e46010519b289e03d608d793302da1eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aede5eff5dfec4c2ee5b416875a4c0e46010519b289e03d608d793302da1eb6", kill_on_drop: false }`
[INFO] [stdout] 4aede5eff5dfec4c2ee5b416875a4c0e46010519b289e03d608d793302da1eb6
[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] 149d78fed17b600012f39f339bf4c654290775ed74f1bb1d20cb896f4e558a79
[INFO] running `Command { std: "docker" "start" "-a" "149d78fed17b600012f39f339bf4c654290775ed74f1bb1d20cb896f4e558a79", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]     Checking clap_builder v4.5.47
[INFO] [stderr]     Checking toml_parser v1.0.2
[INFO] [stderr]    Compiling packed_struct v0.10.1
[INFO] [stderr]     Checking toml_writer v1.0.2
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking clap v4.5.47
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]    Compiling packed_struct_codegen v0.10.1
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]     Checking packbits v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/pack/diagram.rs:201:45
[INFO] [stdout]     |
[INFO] [stdout] 201 |           if best.as_ref().map(|&(_, s, e)| (e + 1 - s)).unwrap_or(0) < len {
[INFO] [stdout]     |                                             ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 201 -           if best.as_ref().map(|&(_, s, e)| (e + 1 - s)).unwrap_or(0) < len {
[INFO] [stdout] 201 +           if best.as_ref().map(|&(_, s, e)| e + 1 - s).unwrap_or(0) < len {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling bitfield-struct v0.8.0
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/pack/diagram.rs:201:45
[INFO] [stdout]     |
[INFO] [stdout] 201 |           if best.as_ref().map(|&(_, s, e)| (e + 1 - s)).unwrap_or(0) < len {
[INFO] [stdout]     |                                             ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 201 -           if best.as_ref().map(|&(_, s, e)| (e + 1 - s)).unwrap_or(0) < len {
[INFO] [stdout] 201 +           if best.as_ref().map(|&(_, s, e)| e + 1 - s).unwrap_or(0) < len {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking serde_spanned v1.0.0
[INFO] [stderr]     Checking toml_datetime v0.7.0
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking toml v0.9.5
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking trybuild v1.0.110
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/pack/diagram.rs:201:45
[INFO] [stdout]     |
[INFO] [stdout] 201 |           if best.as_ref().map(|&(_, s, e)| (e + 1 - s)).unwrap_or(0) < len {
[INFO] [stdout]     |                                             ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 201 -           if best.as_ref().map(|&(_, s, e)| (e + 1 - s)).unwrap_or(0) < len {
[INFO] [stdout] 201 +           if best.as_ref().map(|&(_, s, e)| e + 1 - s).unwrap_or(0) < len {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> tests/nested.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[packbits::pack(bytes = 2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the attribute macro `packbits::pack` (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<Flags, Infallible>
[INFO] [stdout]   --> tests/nested.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[packbits::pack(bytes = 2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `packbits::pack` (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<u8, Infallible>
[INFO] [stdout]   --> tests/other_types.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[packbits::pack(bytes = 1)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the attribute macro `packbits::pack` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packbits` (test "nested") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> examples/packet.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[packbits::pack(u32)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the attribute macro `packbits::pack` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Kind, Infallible>
[INFO] [stdout]   --> examples/packet.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[packbits::pack(u32)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `packbits::pack` (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<u16, Infallible>
[INFO] [stdout]    --> tests/other_types.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | #[packbits::pack(bytes = 3)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `packbits::pack` (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<u8, Infallible>
[INFO] [stdout]    --> tests/other_types.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | #[packbits::pack(bytes = 3)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `packbits::pack` (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<u8, Infallible>
[INFO] [stdout]    --> tests/other_types.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | #[packbits::pack(bytes = 1, msb)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `packbits::pack` (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<Tri, Infallible>
[INFO] [stdout]    --> tests/other_types.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | #[packbits::pack(bytes = 1, msb)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the attribute macro `packbits::pack` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packbits` (test "other_types") due to 5 previous errors
[INFO] [stderr] error: could not compile `packbits` (example "packet") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<u16, Infallible>
[INFO] [stdout]   --> tests/nested_struct.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[packbits::pack(bytes = 4)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the attribute macro `packbits::pack` (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<Inner, Infallible>
[INFO] [stdout]   --> tests/nested_struct.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[packbits::pack(bytes = 4)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `packbits::pack` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packbits` (test "nested_struct") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "149d78fed17b600012f39f339bf4c654290775ed74f1bb1d20cb896f4e558a79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149d78fed17b600012f39f339bf4c654290775ed74f1bb1d20cb896f4e558a79", kill_on_drop: false }`
[INFO] [stdout] 149d78fed17b600012f39f339bf4c654290775ed74f1bb1d20cb896f4e558a79