[INFO] fetching crate rbtw 2.0.1...
[INFO] checking rbtw-2.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rbtw 2.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rbtw 2.0.1
[INFO] finished tweaking crates.io crate rbtw 2.0.1
[INFO] tweaked toml for crates.io crate rbtw 2.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rbtw 2.0.1 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 rbtw 2.0.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 492f639495ed17d5a048f6c92383e527b32d3fba3f8b1b7e5bf16d9a9ab96c65
[INFO] running `Command { std: "docker" "start" "-a" "492f639495ed17d5a048f6c92383e527b32d3fba3f8b1b7e5bf16d9a9ab96c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "492f639495ed17d5a048f6c92383e527b32d3fba3f8b1b7e5bf16d9a9ab96c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "492f639495ed17d5a048f6c92383e527b32d3fba3f8b1b7e5bf16d9a9ab96c65", kill_on_drop: false }`
[INFO] [stdout] 492f639495ed17d5a048f6c92383e527b32d3fba3f8b1b7e5bf16d9a9ab96c65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 11934113250fe02f6418c5ce3cd1188e7b5029388998e5668de4238014a92d01
[INFO] running `Command { std: "docker" "start" "-a" "11934113250fe02f6418c5ce3cd1188e7b5029388998e5668de4238014a92d01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling owo-colors v4.2.2
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]    Compiling ntapi v0.4.1
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]     Checking object v0.36.7
[INFO] [stderr]     Checking tracing-error v0.2.1
[INFO] [stderr]     Checking sudo v0.6.0
[INFO] [stderr]     Checking uuid v1.17.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.41
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking color-eyre v0.6.5
[INFO] [stderr]     Checking efivar v1.4.0
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking efi-loadopt v0.2.1
[INFO] [stderr]     Checking efivar v2.0.0
[INFO] [stderr]     Checking efibootnext v0.5.0
[INFO] [stderr]     Checking clap v4.5.42
[INFO] [stderr]     Checking rbtw v2.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]   --> src/store.rs:53:28
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mut tmp_name = OsString::from_str(".").expect("dot fits in OsString");
[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<OsString, Infallible>
[INFO] [stdout]   --> src/store.rs:53:28
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mut tmp_name = OsString::from_str(".").expect("dot fits in OsString");
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rbtw` (bin "rbtw" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rbtw` (bin "rbtw") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "11934113250fe02f6418c5ce3cd1188e7b5029388998e5668de4238014a92d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11934113250fe02f6418c5ce3cd1188e7b5029388998e5668de4238014a92d01", kill_on_drop: false }`
[INFO] [stdout] 11934113250fe02f6418c5ce3cd1188e7b5029388998e5668de4238014a92d01