[INFO] fetching crate procr_ansi_term 0.2.2...
[INFO] testing procr_ansi_term-0.2.2 against 1.91.0 for beta-1.92-2
[INFO] extracting crate procr_ansi_term 0.2.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate procr_ansi_term 0.2.2
[INFO] finished tweaking crates.io crate procr_ansi_term 0.2.2
[INFO] tweaked toml for crates.io crate procr_ansi_term 0.2.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate procr_ansi_term 0.2.2 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] crate crates.io crate procr_ansi_term 0.2.2 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded procr_ansi_format v0.1.0
[INFO] [stderr]   Downloaded serde v1.0.188
[INFO] [stderr]   Downloaded ra-ap-rustc_lexer v0.14.0
[INFO] [stderr]   Downloaded paste v1.0.14
[INFO] [stderr]   Downloaded synstructure v0.13.0
[INFO] [stderr]   Downloaded ra-ap-rustc_serialize v0.14.0
[INFO] [stderr]   Downloaded ra-ap-rustc_index v0.14.0
[INFO] [stderr]   Downloaded thin-vec v0.2.12
[INFO] [stderr]   Downloaded smallvec v1.11.1
[INFO] [stderr]   Downloaded unicode-properties v0.1.0
[INFO] [stderr]   Downloaded serde_derive v1.0.188
[INFO] [stderr]   Downloaded prettyplease v0.2.15
[INFO] [stderr]   Downloaded bitflags v2.4.0
[INFO] [stderr]   Downloaded ra-ap-rustc_macros v0.14.0
[INFO] [stderr]   Downloaded hashbrown v0.14.1
[INFO] [stderr]   Downloaded regex v1.10.0
[INFO] [stderr]   Downloaded regex-syntax v0.8.1
[INFO] [stderr]   Downloaded regex-automata v0.4.1
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bebaa3b1197560d52df0b1b96776f49ee2654ac7de8d8a67129a03571a0af1b
[INFO] running `Command { std: "docker" "start" "-a" "5bebaa3b1197560d52df0b1b96776f49ee2654ac7de8d8a67129a03571a0af1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bebaa3b1197560d52df0b1b96776f49ee2654ac7de8d8a67129a03571a0af1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bebaa3b1197560d52df0b1b96776f49ee2654ac7de8d8a67129a03571a0af1b", kill_on_drop: false }`
[INFO] [stdout] 5bebaa3b1197560d52df0b1b96776f49ee2654ac7de8d8a67129a03571a0af1b
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 850ccfff65cae628d52108c1c484978f106bf8d43cc67b7c3972132761d4410e
[INFO] running `Command { std: "docker" "start" "-a" "850ccfff65cae628d52108c1c484978f106bf8d43cc67b7c3972132761d4410e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.1
[INFO] [stderr]    Compiling prettyplease v0.2.15
[INFO] [stderr]    Compiling regex-syntax v0.8.1
[INFO] [stderr]    Compiling thin-vec v0.2.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling smallvec v1.11.1
[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/smallvec-1.11.1/src/lib.rs:96:37
[INFO] [stdout]    |
[INFO] [stdout] 96 | #![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unicode-properties v0.1.0
[INFO] [stderr]    Compiling indexmap v2.0.2
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smallvec` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "850ccfff65cae628d52108c1c484978f106bf8d43cc67b7c3972132761d4410e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "850ccfff65cae628d52108c1c484978f106bf8d43cc67b7c3972132761d4410e", kill_on_drop: false }`
[INFO] [stdout] 850ccfff65cae628d52108c1c484978f106bf8d43cc67b7c3972132761d4410e
