[INFO] fetching crate lumen-io 0.5.0...
[INFO] checking lumen-io-0.5.0 against 1.95.0 for pr-155915
[INFO] extracting crate lumen-io 0.5.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate lumen-io 0.5.0
[INFO] finished tweaking crates.io crate lumen-io 0.5.0
[INFO] tweaked toml for crates.io crate lumen-io 0.5.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lumen-io 0.5.0 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 lumen-io 0.5.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lumen-core v0.5.0
[INFO] [stderr]   Downloaded libz-rs-sys v0.5.5
[INFO] [stderr]   Downloaded thiserrorctx-impl v1.0.0
[INFO] [stderr]   Downloaded deflate64 v0.1.11
[INFO] [stderr]   Downloaded thiserrorctx v1.0.0
[INFO] [stderr]   Downloaded zip v4.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0bdceb63804d5ba05e517ee904cb5d7e37cac7590ed1061fa8766de0efc02390
[INFO] running `Command { std: "docker" "start" "-a" "0bdceb63804d5ba05e517ee904cb5d7e37cac7590ed1061fa8766de0efc02390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bdceb63804d5ba05e517ee904cb5d7e37cac7590ed1061fa8766de0efc02390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bdceb63804d5ba05e517ee904cb5d7e37cac7590ed1061fa8766de0efc02390", kill_on_drop: false }`
[INFO] [stdout] 0bdceb63804d5ba05e517ee904cb5d7e37cac7590ed1061fa8766de0efc02390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 522fd3813bd296f270b89c342005e8458bd142118936b62356701b7a8ae722ee
[INFO] running `Command { std: "docker" "start" "-a" "522fd3813bd296f270b89c342005e8458bd142118936b62356701b7a8ae722ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling toml_datetime v0.7.5+spec-1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]     Checking zlib-rs v0.5.5
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking simd-adler32 v0.3.8
[INFO] [stderr]     Checking bumpalo v3.19.1
[INFO] [stderr]     Checking bitflags v2.9.3
[INFO] [stderr]     Checking libbz2-rs-sys v0.2.2
[INFO] [stderr]     Checking time v0.3.47
[INFO] [stderr]     Checking rustix v1.1.2
[INFO] [stderr]     Checking zopfli v0.8.3
[INFO] [stderr]     Checking ppmd-rust v1.4.0
[INFO] [stderr]     Checking deflate64 v0.1.11
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking serde_json v1.0.148
[INFO] [stderr]     Checking pbkdf2 v0.12.2
[INFO] [stderr]     Checking memmap2 v0.9.9
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]     Checking bzip2 v0.6.1
[INFO] [stderr]    Compiling cc v1.2.51
[INFO] [stderr]     Checking num-traits v0.2.19
[INFO] [stderr]     Checking libz-rs-sys v0.5.5
[INFO] [stderr]     Checking flate2 v1.1.5
[INFO] [stderr]    Compiling toml_parser v1.0.6+spec-1.1.0
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand_distr v0.5.1
[INFO] [stderr]    Compiling toml_edit v0.23.10+spec-1.0.0
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling liblzma-sys v0.4.5
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]     Checking liblzma v0.4.6
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling zeroize_derive v1.4.3
[INFO] [stderr]    Compiling thiserrorctx-impl v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking zeroize v1.8.2
[INFO] [stderr]     Checking thiserrorctx v1.0.0
[INFO] [stderr]     Checking lumen-core v0.5.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lumen-core-0.5.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(mapped_lock_guards)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking zip v4.6.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lumen-core` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "522fd3813bd296f270b89c342005e8458bd142118936b62356701b7a8ae722ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "522fd3813bd296f270b89c342005e8458bd142118936b62356701b7a8ae722ee", kill_on_drop: false }`
[INFO] [stdout] 522fd3813bd296f270b89c342005e8458bd142118936b62356701b7a8ae722ee
