[INFO] updating cached repository JellyWX/suggestion-bot-rs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/JellyWX/suggestion-bot-rs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/JellyWX/suggestion-bot-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/JellyWX/suggestion-bot-rs"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JellyWX/suggestion-bot-rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/JellyWX/suggestion-bot-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JellyWX/suggestion-bot-rs"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JellyWX/suggestion-bot-rs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 30a96fb46b00662f4514332097d1388c4c22812e [INFO] sha for GitHub repo JellyWX/suggestion-bot-rs: 30a96fb46b00662f4514332097d1388c4c22812e [INFO] validating manifest of JellyWX/suggestion-bot-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 JellyWX/suggestion-bot-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 JellyWX/suggestion-bot-rs [INFO] finished frobbing JellyWX/suggestion-bot-rs [INFO] frobbed toml for JellyWX/suggestion-bot-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/JellyWX/suggestion-bot-rs/Cargo.toml [INFO] started frobbing JellyWX/suggestion-bot-rs [INFO] finished frobbing JellyWX/suggestion-bot-rs [INFO] frobbed toml for JellyWX/suggestion-bot-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JellyWX/suggestion-bot-rs/Cargo.toml [INFO] crate JellyWX/suggestion-bot-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] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing JellyWX/suggestion-bot-rs against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JellyWX/suggestion-bot-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 6996687e7679255eea9191b534aeb07a9fc1606064e173cb53b982f9b67103a4 [INFO] running `"docker" "start" "-a" "6996687e7679255eea9191b534aeb07a9fc1606064e173cb53b982f9b67103a4"` [INFO] [stderr] Compiling uuid v0.6.5 [INFO] [stderr] Compiling miniz-sys v0.1.10 [INFO] [stderr] Compiling base64 v0.8.0 [INFO] [stderr] Compiling want v0.0.6 [INFO] [stderr] Compiling tempdir v0.3.7 [INFO] [stderr] Compiling threadpool v1.7.1 [INFO] [stderr] Compiling nix v0.11.0 [INFO] [stderr] Compiling tokio-io v0.1.9 [INFO] [stderr] Compiling memchr v2.1.0 [INFO] [stderr] Compiling parking_lot_core v0.2.14 [INFO] [stderr] Compiling uuid v0.5.1 [INFO] [stderr] Compiling openssl v0.9.24 [INFO] [stderr] Compiling checked v0.5.0 [INFO] [stderr] Compiling atoi v0.2.3 [INFO] [stderr] Compiling num-bigint v0.2.0 [INFO] [stderr] Compiling chrono v0.4.6 [INFO] [stderr] Compiling syn v0.15.11 [INFO] [stderr] Compiling native-tls v0.2.1 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling h2 v0.1.13 [INFO] [stderr] Compiling aho-corasick v0.6.8 [INFO] [stderr] Compiling tokio-threadpool v0.1.7 [INFO] [stderr] Compiling parking_lot v0.5.5 [INFO] [stderr] Compiling flate2 v1.0.3 [INFO] [stderr] Compiling tokio-reactor v0.1.6 [INFO] [stderr] Compiling regex v1.0.5 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling tokio-fs v0.1.3 [INFO] [stderr] Compiling mime_guess v1.8.6 [INFO] [stderr] Compiling tokio-tcp v0.1.2 [INFO] [stderr] Compiling tokio-uds v0.2.2 [INFO] [stderr] Compiling tokio-udp v0.1.2 [INFO] [stderr] Compiling native-tls v0.1.5 [INFO] [stderr] Compiling multipart v0.13.6 [INFO] [stderr] Compiling tokio v0.1.11 [INFO] [stderr] Compiling evzht9h3nznqzwl v0.0.3 [INFO] [stderr] Compiling hyper-native-tls v0.2.4 [INFO] [stderr] Compiling serde_derive v1.0.80 [INFO] [stderr] Compiling mysql_common v0.9.2 [INFO] [stderr] Compiling hyper v0.12.12 [INFO] [stderr] Compiling dotenv v0.9.0 [INFO] [stderr] Compiling mysql v14.1.0 [INFO] [stderr] Compiling hyper-tls v0.3.1 [INFO] [stderr] Compiling reqwest v0.9.2 [INFO] [stderr] Compiling serenity v0.5.9 [INFO] [stderr] Compiling suggestion-bot v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(vec_remove_item)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `suggestion-bot`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "6996687e7679255eea9191b534aeb07a9fc1606064e173cb53b982f9b67103a4"` [INFO] running `"docker" "rm" "-f" "6996687e7679255eea9191b534aeb07a9fc1606064e173cb53b982f9b67103a4"` [INFO] [stdout] 6996687e7679255eea9191b534aeb07a9fc1606064e173cb53b982f9b67103a4