[INFO] fetching crate binrw 0.15.0...
[INFO] checking binrw-0.15.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate binrw 0.15.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate binrw 0.15.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate binrw 0.15.0
[INFO] tweaked toml for crates.io crate binrw 0.15.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate binrw 0.15.0 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] crate crates.io crate binrw 0.15.0 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-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] a961a77626583ed06944f13af63fcbed254b79589b6acb6307bd97ee430a5dfd
[INFO] running `Command { std: "docker" "start" "-a" "a961a77626583ed06944f13af63fcbed254b79589b6acb6307bd97ee430a5dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a961a77626583ed06944f13af63fcbed254b79589b6acb6307bd97ee430a5dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a961a77626583ed06944f13af63fcbed254b79589b6acb6307bd97ee430a5dfd", kill_on_drop: false }`
[INFO] [stdout] a961a77626583ed06944f13af63fcbed254b79589b6acb6307bd97ee430a5dfd
[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] 43abd32bacdd88539eb76d75a0a80e2985a54e0f961887a7531a649cefec2d4e
[INFO] running `Command { std: "docker" "start" "-a" "43abd32bacdd88539eb76d75a0a80e2985a54e0f961887a7531a649cefec2d4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking hashbrown v0.15.3
[INFO] [stderr]    Compiling owo-colors v4.2.0
[INFO] [stderr]    Compiling binrw_derive v0.15.0
[INFO] [stderr]     Checking winnow v0.7.9
[INFO] [stderr]     Checking toml_write v0.1.1
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling binrw v0.15.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]     Checking bytemuck v1.23.0
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking toml_datetime v0.6.9
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking toml_edit v0.22.26
[INFO] [stderr]     Checking toml v0.8.22
[INFO] [stderr]    Compiling modular-bitfield-impl v0.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking modular-bitfield v0.12.0
[INFO] [stderr]     Checking trybuild v1.0.104
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/binread/impls.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub count: usize,
[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 `count` is never read
[INFO] [stdout]    --> src/binread/impls.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub count: usize,
[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 `offset` is never read
[INFO] [stdout]    --> src/file_ptr.rs:606:9
[INFO] [stdout]     |
[INFO] [stdout] 606 |     pub offset: u64,
[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<i64, Infallible>
[INFO] [stdout]    --> src/file_ptr.rs:563:39
[INFO] [stdout]     |
[INFO] [stdout] 563 |                     SeekFrom::Current(TryInto::try_into(self).unwrap())
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 570 | impl_into_seek_from!(i8, i16, i32, i64, i128, u8, u16, u32, u64, u128);
[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 `impl_into_seek_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `binrw` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: value assigned to `offset` is never read
[INFO] [stdout]    --> src/file_ptr.rs:606:9
[INFO] [stdout]     |
[INFO] [stdout] 606 |     pub offset: u64,
[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<i64, Infallible>
[INFO] [stdout]    --> src/file_ptr.rs:563:39
[INFO] [stdout]     |
[INFO] [stdout] 563 |                     SeekFrom::Current(TryInto::try_into(self).unwrap())
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 570 | impl_into_seek_from!(i8, i16, i32, i64, i128, u8, u16, u32, u64, u128);
[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 `impl_into_seek_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `binrw` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "43abd32bacdd88539eb76d75a0a80e2985a54e0f961887a7531a649cefec2d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43abd32bacdd88539eb76d75a0a80e2985a54e0f961887a7531a649cefec2d4e", kill_on_drop: false }`
[INFO] [stdout] 43abd32bacdd88539eb76d75a0a80e2985a54e0f961887a7531a649cefec2d4e