[INFO] fetching crate multinite-web-script-compiler 1.1.1...
[INFO] testing multinite-web-script-compiler-1.1.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate multinite-web-script-compiler 1.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate multinite-web-script-compiler 1.1.1
[INFO] finished tweaking crates.io crate multinite-web-script-compiler 1.1.1
[INFO] tweaked toml for crates.io crate multinite-web-script-compiler 1.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate multinite-web-script-compiler 1.1.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crc32fast v1.5.0
[INFO] [stderr]   Downloaded adler2 v2.0.1
[INFO] [stderr]   Downloaded simd-adler32 v0.3.7
[INFO] [stderr]   Downloaded miniz_oxide v0.8.9
[INFO] [stderr]   Downloaded flate2 v1.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a214a4604465eaedc09261a608ad60db1bcbb2c0358e2faf43a367d014f06ab1
[INFO] running `Command { std: "docker" "start" "-a" "a214a4604465eaedc09261a608ad60db1bcbb2c0358e2faf43a367d014f06ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a214a4604465eaedc09261a608ad60db1bcbb2c0358e2faf43a367d014f06ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a214a4604465eaedc09261a608ad60db1bcbb2c0358e2faf43a367d014f06ab1", kill_on_drop: false }`
[INFO] [stdout] a214a4604465eaedc09261a608ad60db1bcbb2c0358e2faf43a367d014f06ab1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e54760e38eb29ae90d84970ecee5ea8bd6481ad24ce428a3128fbef862bb1a8
[INFO] running `Command { std: "docker" "start" "-a" "5e54760e38eb29ae90d84970ecee5ea8bd6481ad24ce428a3128fbef862bb1a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[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/regex-1.12.2/src/lib.rs:1321:34
[INFO] [stdout]      |
[INFO] [stdout] 1321 | #![cfg_attr(feature = "pattern", feature(pattern))]
[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 `regex` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5e54760e38eb29ae90d84970ecee5ea8bd6481ad24ce428a3128fbef862bb1a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e54760e38eb29ae90d84970ecee5ea8bd6481ad24ce428a3128fbef862bb1a8", kill_on_drop: false }`
[INFO] [stdout] 5e54760e38eb29ae90d84970ecee5ea8bd6481ad24ce428a3128fbef862bb1a8