[INFO] fetching crate fs4 0.13.1...
[INFO] testing fs4-0.13.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate fs4 0.13.1 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate fs4 0.13.1
[INFO] finished tweaking crates.io crate fs4 0.13.1
[INFO] tweaked toml for crates.io crate fs4 0.13.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fs4 0.13.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fs4 0.13.1 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fs-err v3.1.0
[INFO] [stderr]   Downloaded smol-potat v1.1.2
[INFO] [stderr]   Downloaded smol-potat-macro v0.6.0
[INFO] [stderr]   Downloaded tempfile v3.17.1
[INFO] [stderr]   Downloaded rustix v1.0.0
[INFO] [stderr]   Downloaded smol v2.0.2
[INFO] [stderr]   Downloaded linux-raw-sys v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab920fd0e2ce31da2d291f3e97328175cb532711f3a084b734a3963e267b6d4d
[INFO] running `Command { std: "docker" "start" "-a" "ab920fd0e2ce31da2d291f3e97328175cb532711f3a084b734a3963e267b6d4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab920fd0e2ce31da2d291f3e97328175cb532711f3a084b734a3963e267b6d4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab920fd0e2ce31da2d291f3e97328175cb532711f3a084b734a3963e267b6d4d", kill_on_drop: false }`
[INFO] [stdout] ab920fd0e2ce31da2d291f3e97328175cb532711f3a084b734a3963e267b6d4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 438f558b39c2d8e0a6b5c4bcdaccb1a9434983a1faaf08262d4ff6d16b64c0d4
[INFO] running `Command { std: "docker" "start" "-a" "438f558b39c2d8e0a6b5c4bcdaccb1a9434983a1faaf08262d4ff6d16b64c0d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.0.0
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling linux-raw-sys v0.9.2
[INFO] [stderr]    Compiling fs4 v0.13.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.04s
[INFO] running `Command { std: "docker" "inspect" "438f558b39c2d8e0a6b5c4bcdaccb1a9434983a1faaf08262d4ff6d16b64c0d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "438f558b39c2d8e0a6b5c4bcdaccb1a9434983a1faaf08262d4ff6d16b64c0d4", kill_on_drop: false }`
[INFO] [stdout] 438f558b39c2d8e0a6b5c4bcdaccb1a9434983a1faaf08262d4ff6d16b64c0d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e94184225d41247a0f0932d970739354885c205f3b0409e39039485a28288701
[INFO] running `Command { std: "docker" "start" "-a" "e94184225d41247a0f0932d970739354885c205f3b0409e39039485a28288701", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling futures-lite v2.6.0
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling event-listener-strategy v0.5.3
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.28
[INFO] [stderr]    Compiling async-lock v3.4.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling async-channel v2.3.1
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling once_cell v1.20.3
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling bytes v1.10.0
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling async-executor v1.13.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling blocking v1.6.1
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling fs-err v2.11.0
[INFO] [stderr]    Compiling fs-err v3.1.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling smol-potat-macro v0.6.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling smol-potat v1.1.2
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling polling v3.7.4
[INFO] [stderr]    Compiling tempfile v3.17.1
[INFO] [stderr]    Compiling async-io v2.4.0
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling async-std v1.13.0
[INFO] [stderr]    Compiling fs4 v0.13.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(test, feature(test))]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/file_ext/sync_impl.rs:181:21
[INFO] [stdout]     |
[INFO] [stdout] 181 |                       false,
[INFO] [stdout]     |                       ^^^^^ expected `()`, found `bool`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/file_ext/sync_impl/std_impl.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout]   9 | / test_mod! {
[INFO] [stdout]  10 | |   use std::fs;
[INFO] [stdout]  11 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `test_mod` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/file_ext/sync_impl.rs:212:21
[INFO] [stdout]     |
[INFO] [stdout] 212 |                       false,
[INFO] [stdout]     |                       ^^^^^ expected `()`, found `bool`
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/file_ext/sync_impl/std_impl.rs:9:1
[INFO] [stdout]     |
[INFO] [stdout]   9 | / test_mod! {
[INFO] [stdout]  10 | |   use std::fs;
[INFO] [stdout]  11 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `test_mod` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fs4` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "e94184225d41247a0f0932d970739354885c205f3b0409e39039485a28288701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94184225d41247a0f0932d970739354885c205f3b0409e39039485a28288701", kill_on_drop: false }`
[INFO] [stdout] e94184225d41247a0f0932d970739354885c205f3b0409e39039485a28288701