[INFO] cloning repository https://github.com/simvux/lumina-legacy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simvux/lumina-legacy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimvux%2Flumina-legacy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimvux%2Flumina-legacy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5802d6a0c2e4805087988bacfeb057d838920772
[INFO] testing simvux/lumina-legacy against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimvux%2Flumina-legacy" "/workspace/builds/worker-71/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-71/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simvux/lumina-legacy on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simvux/lumina-legacy
[INFO] finished tweaking git repo https://github.com/simvux/lumina-legacy
[INFO] tweaked toml for git repo https://github.com/simvux/lumina-legacy written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate git repo https://github.com/simvux/lumina-legacy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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 strum_macros v0.17.1
[INFO] [stderr]   Downloaded strum v0.17.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2d02a198d612baf6088ac73823e2f0985ce28d55a2748d1e1642eb3954a8447
[INFO] running `Command { std: "docker" "start" "-a" "b2d02a198d612baf6088ac73823e2f0985ce28d55a2748d1e1642eb3954a8447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2d02a198d612baf6088ac73823e2f0985ce28d55a2748d1e1642eb3954a8447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d02a198d612baf6088ac73823e2f0985ce28d55a2748d1e1642eb3954a8447", kill_on_drop: false }`
[INFO] [stdout] b2d02a198d612baf6088ac73823e2f0985ce28d55a2748d1e1642eb3954a8447
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 990d53db0874979037749c4b5cbd3e977cd227839563b9f5f1dca9b7d98408e7
[INFO] running `Command { std: "docker" "start" "-a" "990d53db0874979037749c4b5cbd3e977cd227839563b9f5f1dca9b7d98408e7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling strum v0.17.1
[INFO] [stderr]    Compiling smallvec v1.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smallvec-1.1.0/lib.rs:29:32
[INFO] [stdout]    |
[INFO] [stdout] 29 | #![cfg_attr(feature = "union", feature(untagged_unions))]
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smallvec` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "990d53db0874979037749c4b5cbd3e977cd227839563b9f5f1dca9b7d98408e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "990d53db0874979037749c4b5cbd3e977cd227839563b9f5f1dca9b7d98408e7", kill_on_drop: false }`
[INFO] [stdout] 990d53db0874979037749c4b5cbd3e977cd227839563b9f5f1dca9b7d98408e7
