[INFO] fetching crate ratrod 0.6.3...
[INFO] testing ratrod-0.6.3 against 1.95.0 for beta-1.96-2
[INFO] extracting crate ratrod 0.6.3 into /workspace/builds/worker-3-tc1/source
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate ratrod 0.6.3
[INFO] finished tweaking crates.io crate ratrod 0.6.3
[INFO] tweaked toml for crates.io crate ratrod 0.6.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ratrod 0.6.3 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] crate crates.io crate ratrod 0.6.3 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-interface v0.57.0
[INFO] [stderr]   Downloaded ouroboros_macro v0.18.5
[INFO] [stderr]   Downloaded windows-result v0.1.2
[INFO] [stderr]   Downloaded windows-core v0.57.0
[INFO] [stderr]   Downloaded windows-implement v0.57.0
[INFO] [stderr]   Downloaded homedir v0.3.4
[INFO] [stderr]   Downloaded aliasable v0.1.3
[INFO] [stderr]   Downloaded ouroboros v0.18.5
[INFO] [stderr]   Downloaded clap v4.5.32
[INFO] [stderr]   Downloaded clap_builder v4.5.32
[INFO] [stderr]   Downloaded tokio v1.44.1
[INFO] [stderr]   Downloaded windows v0.57.0
[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] e94e291609f0c790dd6b9245fdec3d4cab7dbbc716b4737278c9c03dd4fd7a95
[INFO] running `Command { std: "docker" "start" "-a" "e94e291609f0c790dd6b9245fdec3d4cab7dbbc716b4737278c9c03dd4fd7a95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e94e291609f0c790dd6b9245fdec3d4cab7dbbc716b4737278c9c03dd4fd7a95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94e291609f0c790dd6b9245fdec3d4cab7dbbc716b4737278c9c03dd4fd7a95", kill_on_drop: false }`
[INFO] [stdout] e94e291609f0c790dd6b9245fdec3d4cab7dbbc716b4737278c9c03dd4fd7a95
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df3a8b3e1e8a757b85e0cef5cc19117b425633d1fc336ce38c0171b402969c20
[INFO] running `Command { std: "docker" "start" "-a" "df3a8b3e1e8a757b85e0cef5cc19117b425633d1fc336ce38c0171b402969c20", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling zerocopy v0.8.23
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling untrusted v0.9.0
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling aliasable v0.1.3
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling clap_builder v4.5.32
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling secrecy v0.10.3
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.0
[INFO] [stderr]    Compiling homedir v0.3.4
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling ouroboros_macro v0.18.5
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.44.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling ouroboros v0.18.5
[INFO] [stderr]    Compiling clap v4.5.32
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling ratrod v0.6.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(coverage_attribute)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ratrod` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "df3a8b3e1e8a757b85e0cef5cc19117b425633d1fc336ce38c0171b402969c20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df3a8b3e1e8a757b85e0cef5cc19117b425633d1fc336ce38c0171b402969c20", kill_on_drop: false }`
[INFO] [stdout] df3a8b3e1e8a757b85e0cef5cc19117b425633d1fc336ce38c0171b402969c20
