[INFO] fetching crate alive_plugin 0.1.10...
[INFO] checking alive_plugin-0.1.10 against 1.95.0 for pr-155915
[INFO] extracting crate alive_plugin 0.1.10 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate alive_plugin 0.1.10
[INFO] finished tweaking crates.io crate alive_plugin 0.1.10
[INFO] tweaked toml for crates.io crate alive_plugin 0.1.10 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate alive_plugin 0.1.10 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 147 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding skiplist v0.5.1 (available: v1.1.0)
[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]     Blocking waiting for file lock on package cache
[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] f5a4d1ec265091d956b6c86fffd24b9b21fd22a15f242a2e37452350b4ac8c32
[INFO] running `Command { std: "docker" "start" "-a" "f5a4d1ec265091d956b6c86fffd24b9b21fd22a15f242a2e37452350b4ac8c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5a4d1ec265091d956b6c86fffd24b9b21fd22a15f242a2e37452350b4ac8c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a4d1ec265091d956b6c86fffd24b9b21fd22a15f242a2e37452350b4ac8c32", kill_on_drop: false }`
[INFO] [stdout] f5a4d1ec265091d956b6c86fffd24b9b21fd22a15f242a2e37452350b4ac8c32
[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] 7d654a1011b777d74d26f13ca4a0cb412865fa85e8605e729615a87d80664b0c
[INFO] running `Command { std: "docker" "start" "-a" "7d654a1011b777d74d26f13ca4a0cb412865fa85e8605e729615a87d80664b0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking typenum v1.20.0
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking xerr v0.1.16
[INFO] [stderr]     Checking aok v0.1.18
[INFO] [stderr]    Compiling circular-queue v0.2.7
[INFO] [stderr]     Checking hashbrown v0.17.1
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking pipe v0.4.0
[INFO] [stderr]     Checking const-str v0.5.7
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking coarsetime v0.1.37
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking indexmap v2.14.0
[INFO] [stderr]     Checking rand v0.8.6
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.7
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking skiplist v0.5.1
[INFO] [stderr]     Checking sts v0.1.23
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling prost-derive v0.12.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling speedy-derive v0.8.7
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking speedy v0.8.7
[INFO] [stderr]    Compiling prost v0.12.6
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]    Compiling prost-types v0.12.6
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]    Compiling prost-build v0.12.6
[INFO] [stderr]     Checking ifs v0.1.47
[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/ifs-0.1.47/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(doc_cfg)]
[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 `ifs` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7d654a1011b777d74d26f13ca4a0cb412865fa85e8605e729615a87d80664b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d654a1011b777d74d26f13ca4a0cb412865fa85e8605e729615a87d80664b0c", kill_on_drop: false }`
[INFO] [stdout] 7d654a1011b777d74d26f13ca4a0cb412865fa85e8605e729615a87d80664b0c