[INFO] fetching crate seminix 0.1.61...
[INFO] testing seminix-0.1.61 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate seminix 0.1.61 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate seminix 0.1.61
[INFO] finished tweaking crates.io crate seminix 0.1.61
[INFO] tweaked toml for crates.io crate seminix 0.1.61 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate seminix 0.1.61 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate seminix 0.1.61 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded semx_task_define v0.1.61
[INFO] [stderr]   Downloaded semx_rt_macros v0.1.61
[INFO] [stderr]   Downloaded semx_unsafe_list v0.1.61
[INFO] [stderr]   Downloaded tock-registers v0.9.0
[INFO] [stderr]   Downloaded semx_rt_define v0.1.61
[INFO] [stderr]   Downloaded semx_rand v0.1.61
[INFO] [stderr]   Downloaded semx_const_sizes v0.1.61
[INFO] [stderr]   Downloaded semx_bsp_define v0.1.61
[INFO] [stderr]   Downloaded semx_bitops v0.1.61
[INFO] [stderr]   Downloaded semx_cpumask v0.1.61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d
[INFO] running `Command { std: "docker" "start" "e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling semx_cpumask v0.1.61
[INFO] [stderr]    Compiling semx_task_define v0.1.61
[INFO] [stderr]    Compiling semx_rt_define v0.1.61
[INFO] [stderr]    Compiling semx_target_define v0.1.61
[INFO] [stderr]    Compiling semx_rand v0.1.61
[INFO] [stderr]    Compiling semx_const_sizes v0.1.61
[INFO] [stderr]    Compiling semx_bitops v0.1.61
[INFO] [stderr]    Compiling semx_unsafe_list v0.1.61
[INFO] [stderr]    Compiling tock-registers v0.9.0
[INFO] [stderr]    Compiling seminix v0.1.61 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/semx_bitops-0.1.61/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(likely_unlikely)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling semx_bsp_define v0.1.61
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/semx_rt_define-0.1.61/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(macro_metavar_expr)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/semx_rt_define-0.1.61/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(macro_metavar_expr)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `semx_bitops` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `semx_rt_define` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `semx_rt_define` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d", kill_on_drop: false }`
[INFO] [stdout] e93806dd8f13e074049779a96b2b37c4ad7538dfdbedf46548851cf6f7bd7b5d
