[INFO] cloning repository https://github.com/dpc/fs-dir-cache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dpc/fs-dir-cache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Ffs-dir-cache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Ffs-dir-cache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 906f5557941f07630dcbd8f615b0ac1e173a5d68
[INFO] checking dpc/fs-dir-cache against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Ffs-dir-cache" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/dpc/fs-dir-cache
[INFO] finished tweaking git repo https://github.com/dpc/fs-dir-cache
[INFO] tweaked toml for git repo https://github.com/dpc/fs-dir-cache written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dpc/fs-dir-cache 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 git repo https://github.com/dpc/fs-dir-cache 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9eb9c619bf48c95e54f1371c4c199efacb651beca57db0f47fb99f6eff62c460
[INFO] running `Command { std: "docker" "start" "-a" "9eb9c619bf48c95e54f1371c4c199efacb651beca57db0f47fb99f6eff62c460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9eb9c619bf48c95e54f1371c4c199efacb651beca57db0f47fb99f6eff62c460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eb9c619bf48c95e54f1371c4c199efacb651beca57db0f47fb99f6eff62c460", kill_on_drop: false }`
[INFO] [stdout] 9eb9c619bf48c95e54f1371c4c199efacb651beca57db0f47fb99f6eff62c460
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d2c43bb5efa644646adfc35a1962aa11f298a01a3d8dacf9f815cf46282c291f
[INFO] running `Command { std: "docker" "start" "-a" "d2c43bb5efa644646adfc35a1962aa11f298a01a3d8dacf9f815cf46282c291f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.86
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling cc v1.1.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking clap_lex v0.7.2
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling anyhow v1.0.92
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling rustix v0.38.38
[INFO] [stderr]     Checking predicates-core v1.0.8
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]     Checking anstream v0.6.17
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking arrayref v0.3.9
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking clap_builder v4.5.20
[INFO] [stderr]    Compiling assert_cmd v2.0.16
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking predicates-tree v1.0.11
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking predicates v3.1.2
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]     Checking convi v0.0.7
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling blake3 v1.5.4
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking bstr v1.10.0
[INFO] [stderr]     Checking tempfile v3.13.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.214
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking clap v4.5.20
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking fs-dir-cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, OsString>
[INFO] [stdout]   --> src/test.rs:33:31
[INFO] [stdout]    |
[INFO] [stdout] 33 |                   let dir_str = ffi::OsString::from_str(
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 34 | |                     String::from_utf8(
[INFO] [stdout] 35 | |                         cmd.output()?.assert().success().get_output().stdout.clone(),
[INFO] [stdout] 36 | |                     )?
[INFO] [stdout] 37 | |                     .trim(),
[INFO] [stdout] 38 | |                 )?;
[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/test.rs:33:31
[INFO] [stdout]    |
[INFO] [stdout] 33 |                   let dir_str = ffi::OsString::from_str(
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 34 | |                     String::from_utf8(
[INFO] [stdout] 35 | |                         cmd.output()?.assert().success().get_output().stdout.clone(),
[INFO] [stdout] 36 | |                     )?
[INFO] [stdout] 37 | |                     .trim(),
[INFO] [stdout] 38 | |                 )?;
[INFO] [stdout]    | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fs-dir-cache` (bin "fs-dir-cache" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d2c43bb5efa644646adfc35a1962aa11f298a01a3d8dacf9f815cf46282c291f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2c43bb5efa644646adfc35a1962aa11f298a01a3d8dacf9f815cf46282c291f", kill_on_drop: false }`
[INFO] [stdout] d2c43bb5efa644646adfc35a1962aa11f298a01a3d8dacf9f815cf46282c291f
