[INFO] fetching crate fcplug 0.4.5...
[INFO] checking fcplug-0.4.5 against 1.95.0 for pr-155915
[INFO] extracting crate fcplug 0.4.5 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate fcplug 0.4.5
[INFO] finished tweaking crates.io crate fcplug 0.4.5
[INFO] tweaked toml for crates.io crate fcplug 0.4.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fcplug 0.4.5 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 130 packages to latest compatible versions
[INFO] [stderr]       Adding pilota v0.7.0 (available: v0.13.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-appender v0.2.5
[INFO] [stderr]   Downloaded defer-lite v1.0.0
[INFO] [stderr]   Downloaded rkyv_derive v0.8.16
[INFO] [stderr]   Downloaded symlink v0.1.0
[INFO] [stderr]   Downloaded pilota v0.7.0
[INFO] [stderr]   Downloaded rkyv v0.8.16
[INFO] [stderr]   Downloaded linkedbytes v0.1.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 071610d0a5a58aab551b79ed610f022660e9430532d1f592e4c898b14fdb0aa8
[INFO] running `Command { std: "docker" "start" "-a" "071610d0a5a58aab551b79ed610f022660e9430532d1f592e4c898b14fdb0aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "071610d0a5a58aab551b79ed610f022660e9430532d1f592e4c898b14fdb0aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "071610d0a5a58aab551b79ed610f022660e9430532d1f592e4c898b14fdb0aa8", kill_on_drop: false }`
[INFO] [stdout] 071610d0a5a58aab551b79ed610f022660e9430532d1f592e4c898b14fdb0aa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5918a110ce9a747209de4515003faf85e63c6145b44684fa76fff77c1dd72516
[INFO] running `Command { std: "docker" "start" "-a" "5918a110ce9a747209de4515003faf85e63c6145b44684fa76fff77c1dd72516", kill_on_drop: false }`
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rustix v1.1.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking time v0.3.47
[INFO] [stderr]    Compiling async-recursion v1.1.1
[INFO] [stderr]     Checking symlink v0.1.0
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking defer-lite v1.0.0
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking rand v0.9.4
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stderr]     Checking thiserror v2.0.18
[INFO] [stderr]     Checking bytes v1.11.1
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking faststr v0.2.34
[INFO] [stderr]     Checking tempfile v3.27.0
[INFO] [stderr]     Checking rusty-fork v0.3.1
[INFO] [stderr]     Checking tracing-appender v0.2.5
[INFO] [stderr]     Checking proptest v1.11.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking integer-encoding v3.0.4
[INFO] [stderr]     Checking linkedbytes v0.1.16
[INFO] [stderr]     Checking pilota v0.7.0
[INFO] [stderr]     Checking fcplug v0.4.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(downcast_unchecked)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on externally exported functions
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[inline]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on externally exported functions
[INFO] [stdout]   --> src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[inline]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on externally exported functions
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[inline]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `new_uninit` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(new_uninit)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(downcast_unchecked)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on externally exported functions
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[inline]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on externally exported functions
[INFO] [stdout]   --> src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[inline]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on externally exported functions
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[inline]
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: externally exported functions are functions with `#[no_mangle]`, `#[export_name]`, or `#[linkage]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `new_uninit` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(new_uninit)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fcplug` (lib) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fcplug` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5918a110ce9a747209de4515003faf85e63c6145b44684fa76fff77c1dd72516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5918a110ce9a747209de4515003faf85e63c6145b44684fa76fff77c1dd72516", kill_on_drop: false }`
[INFO] [stdout] 5918a110ce9a747209de4515003faf85e63c6145b44684fa76fff77c1dd72516
