[INFO] updating cached repository LooMaclin/totally_not_a_tty_rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LooMaclin/totally_not_a_tty_rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LooMaclin/totally_not_a_tty_rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/LooMaclin/totally_not_a_tty_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/LooMaclin/totally_not_a_tty_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LooMaclin/totally_not_a_tty_rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LooMaclin/totally_not_a_tty_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LooMaclin/totally_not_a_tty_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8554d3ede9cd8e0615b8786bf63bab8f76a9692f
[INFO] sha for GitHub repo LooMaclin/totally_not_a_tty_rs: 8554d3ede9cd8e0615b8786bf63bab8f76a9692f
[INFO] validating manifest of LooMaclin/totally_not_a_tty_rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of LooMaclin/totally_not_a_tty_rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing LooMaclin/totally_not_a_tty_rs
[INFO] finished frobbing LooMaclin/totally_not_a_tty_rs
[INFO] frobbed toml for LooMaclin/totally_not_a_tty_rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/LooMaclin/totally_not_a_tty_rs/Cargo.toml
[INFO] started frobbing LooMaclin/totally_not_a_tty_rs
[INFO] finished frobbing LooMaclin/totally_not_a_tty_rs
[INFO] frobbed toml for LooMaclin/totally_not_a_tty_rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LooMaclin/totally_not_a_tty_rs/Cargo.toml
[INFO] crate LooMaclin/totally_not_a_tty_rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing LooMaclin/totally_not_a_tty_rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LooMaclin/totally_not_a_tty_rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] bc39312d3e7afcc5428ede780ac062bf6ae15148ed77ce1e8c12b187aa8a5bfc
[INFO] running `"docker" "start" "-a" "bc39312d3e7afcc5428ede780ac062bf6ae15148ed77ce1e8c12b187aa8a5bfc"`
[INFO] [stderr]    Compiling futures v0.1.19
[INFO] [stderr]    Compiling serde v1.0.34
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling socket2 v0.3.4
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling curl-sys v0.4.1
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling uuid v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.27
[INFO] [stderr]    Compiling telebot-derive v0.0.10
[INFO] [stderr]    Compiling serde_derive_internals v0.22.0
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/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/crater/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" "bc39312d3e7afcc5428ede780ac062bf6ae15148ed77ce1e8c12b187aa8a5bfc"`
[INFO] running `"docker" "rm" "-f" "bc39312d3e7afcc5428ede780ac062bf6ae15148ed77ce1e8c12b187aa8a5bfc"`
[INFO] [stdout] bc39312d3e7afcc5428ede780ac062bf6ae15148ed77ce1e8c12b187aa8a5bfc