[INFO] updating cached repository kogai/bot-sample
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kogai/bot-sample
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kogai/bot-sample" "work/ex/beta-1.37-6/sources/1.36.0/gh/kogai/bot-sample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kogai/bot-sample'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kogai/bot-sample" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/bot-sample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/bot-sample'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 661260007975a330c181a0c3006260667cf58a17
[INFO] sha for GitHub repo kogai/bot-sample: 661260007975a330c181a0c3006260667cf58a17
[INFO] validating manifest of kogai/bot-sample on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kogai/bot-sample on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kogai/bot-sample
[INFO] finished frobbing kogai/bot-sample
[INFO] frobbed toml for kogai/bot-sample written to work/ex/beta-1.37-6/sources/1.36.0/gh/kogai/bot-sample/Cargo.toml
[INFO] started frobbing kogai/bot-sample
[INFO] finished frobbing kogai/bot-sample
[INFO] frobbed toml for kogai/bot-sample written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/bot-sample/Cargo.toml
[INFO] crate kogai/bot-sample already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing kogai/bot-sample against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kogai/bot-sample:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] a4fa6186b634af447a989f18da6566c5e907f74ff2a13f3cacc50294e3f5fb56
[INFO] running `"docker" "start" "-a" "a4fa6186b634af447a989f18da6566c5e907f74ff2a13f3cacc50294e3f5fb56"`
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]    Compiling httparse v1.2.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.4
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.4.0
[INFO] [stderr]    Compiling nom v2.1.0
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling unsafe-any v0.4.1
[INFO] [stderr]    Compiling mime v0.2.3
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling num_cpus v1.4.0
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling error v0.1.9
[INFO] [stderr]    Compiling unicode-bidi v0.2.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]    Compiling hyper v0.10.9
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]    Compiling openssl-sys v0.9.11
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling chrono v0.3.1
[INFO] [stderr]    Compiling idna v0.1.1
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling openssl v0.9.11
[INFO] [stderr]    Compiling cron v0.2.0
[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/cron-0.2.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[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/cron-0.2.0/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(collections_bound)]
[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/cron-0.2.0/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(btree_range)]
[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/cron-0.2.0/src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(step_by)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cron-0.2.0/src/time_unit/mod.rs:74:55
[INFO] [stderr]    |
[INFO] [stderr] 74 |         Ok((start..Self::inclusive_max() + 1).step_by(step).collect())
[INFO] [stderr]    |                                                       ^^^^ expected usize, found u32
[INFO] [stderr] help: you can convert an `u32` to `usize` and panic if the converted value wouldn't fit
[INFO] [stderr]    |
[INFO] [stderr] 74 |         Ok((start..Self::inclusive_max() + 1).step_by(step.try_into().unwrap()).collect())
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `cron`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a4fa6186b634af447a989f18da6566c5e907f74ff2a13f3cacc50294e3f5fb56"`
[INFO] running `"docker" "rm" "-f" "a4fa6186b634af447a989f18da6566c5e907f74ff2a13f3cacc50294e3f5fb56"`
[INFO] [stdout] a4fa6186b634af447a989f18da6566c5e907f74ff2a13f3cacc50294e3f5fb56