[INFO] updating cached repository https://github.com/LooMaclin/totally_not_a_tty_rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8554d3ede9cd8e0615b8786bf63bab8f76a9692f
[INFO] testing LooMaclin/totally_not_a_tty_rs against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FLooMaclin%2Ftotally_not_a_tty_rs" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LooMaclin/totally_not_a_tty_rs on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/LooMaclin/totally_not_a_tty_rs
[INFO] finished tweaking git repo https://github.com/LooMaclin/totally_not_a_tty_rs
[INFO] tweaked toml for git repo https://github.com/LooMaclin/totally_not_a_tty_rs written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/LooMaclin/totally_not_a_tty_rs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] d1462505e07da2365c2487676392641eae8c6781e1bae7b9257e683501fa741e
[INFO] running `"docker" "start" "-a" "d1462505e07da2365c2487676392641eae8c6781e1bae7b9257e683501fa741e"`
[INFO] [stderr]    Compiling futures v0.1.19
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.27
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling curl-sys v0.4.1
[INFO] [stderr]    Compiling socket2 v0.3.4
[INFO] [stderr]    Compiling erased-serde v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.13
[INFO] [stderr]    Compiling uuid v0.2.3
[INFO] [stderr]    Compiling telebot-derive v0.0.10
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/telebot-derive-0.0.10/src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 |     #![feature(try_from)]
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/telebot-derive-0.0.10/src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     #![feature(proc_macro, proc_macro_lib)]
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `telebot-derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d1462505e07da2365c2487676392641eae8c6781e1bae7b9257e683501fa741e"`
[INFO] running `"docker" "rm" "-f" "d1462505e07da2365c2487676392641eae8c6781e1bae7b9257e683501fa741e"`
[INFO] [stdout] d1462505e07da2365c2487676392641eae8c6781e1bae7b9257e683501fa741e