[INFO] fetching crate vicis 0.1.0...
[INFO] testing vicis-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate vicis 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate vicis 0.1.0
[INFO] finished tweaking crates.io crate vicis 0.1.0
[INFO] tweaked toml for crates.io crate vicis 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vicis 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding anyhow v1.0.38 (available: v1.0.100)
[INFO] [stderr]       Adding either v1.6.1 (available: v1.15.0)
[INFO] [stderr]       Adding funty v1.1.0 (available: v2.0.0)
[INFO] [stderr]       Adding indicatif v0.15.0 (available: v0.18.2)
[INFO] [stderr]       Adding nom v6.0.1 (available: v6.2.2)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (available: v2.1.1)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded funty v1.1.0
[INFO] [stderr]   Downloaded radium v0.5.3
[INFO] [stderr]   Downloaded indicatif v0.15.0
[INFO] [stderr]   Downloaded number_prefix v0.3.0
[INFO] [stderr]   Downloaded wyz v0.2.0
[INFO] [stderr]   Downloaded id-arena v2.2.1
[INFO] [stderr]   Downloaded anyhow v1.0.38
[INFO] [stderr]   Downloaded nom v6.0.1
[INFO] [stderr]   Downloaded bitvec v0.19.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e453c1f91d9852e7a1898e5b3a5e9c32ce8ed5d79573ca735d627250ee384d95
[INFO] running `Command { std: "docker" "start" "-a" "e453c1f91d9852e7a1898e5b3a5e9c32ce8ed5d79573ca735d627250ee384d95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e453c1f91d9852e7a1898e5b3a5e9c32ce8ed5d79573ca735d627250ee384d95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e453c1f91d9852e7a1898e5b3a5e9c32ce8ed5d79573ca735d627250ee384d95", kill_on_drop: false }`
[INFO] [stdout] e453c1f91d9852e7a1898e5b3a5e9c32ce8ed5d79573ca735d627250ee384d95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5f884d8993a48c8c93f0d2b157d45b6822bf3366f0e40bc5a71f26df66acce92
[INFO] running `Command { std: "docker" "start" "-a" "5f884d8993a48c8c93f0d2b157d45b6822bf3366f0e40bc5a71f26df66acce92", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling bitvec v0.19.6
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling indicatif v0.15.0
[INFO] [stderr]    Compiling vicis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_into_raw_parts)]
[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 `vicis` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5f884d8993a48c8c93f0d2b157d45b6822bf3366f0e40bc5a71f26df66acce92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f884d8993a48c8c93f0d2b157d45b6822bf3366f0e40bc5a71f26df66acce92", kill_on_drop: false }`
[INFO] [stdout] 5f884d8993a48c8c93f0d2b157d45b6822bf3366f0e40bc5a71f26df66acce92