[INFO] updating cached repository Alex6323/iota-address-finder [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Alex6323/iota-address-finder [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Alex6323/iota-address-finder" "work/ex/beta-1.38-1/sources/1.37.0/gh/Alex6323/iota-address-finder"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Alex6323/iota-address-finder'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Alex6323/iota-address-finder" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alex6323/iota-address-finder"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alex6323/iota-address-finder'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a9d10c384b28cb6c8a14702cae2ccfbcdc0b95ff [INFO] sha for GitHub repo Alex6323/iota-address-finder: a9d10c384b28cb6c8a14702cae2ccfbcdc0b95ff [INFO] validating manifest of Alex6323/iota-address-finder 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 Alex6323/iota-address-finder 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 Alex6323/iota-address-finder [INFO] finished frobbing Alex6323/iota-address-finder [INFO] frobbed toml for Alex6323/iota-address-finder written to work/ex/beta-1.38-1/sources/1.37.0/gh/Alex6323/iota-address-finder/Cargo.toml [INFO] started frobbing Alex6323/iota-address-finder [INFO] finished frobbing Alex6323/iota-address-finder [INFO] frobbed toml for Alex6323/iota-address-finder written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Alex6323/iota-address-finder/Cargo.toml [INFO] crate Alex6323/iota-address-finder 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 Alex6323/iota-address-finder 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Alex6323/iota-address-finder:/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] c35ee7258a9c497eb648345c782aa323958806507b764c2a33783f12127c9cc8 [INFO] running `"docker" "start" "-a" "c35ee7258a9c497eb648345c782aa323958806507b764c2a33783f12127c9cc8"` [INFO] [stderr] Compiling syn v0.15.36 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling scopeguard v0.1.2 [INFO] [stderr] Compiling variance v0.1.3 [INFO] [stderr] Compiling futures-core-preview v0.2.3 [INFO] [stderr] Compiling tokio-sync v0.1.6 [INFO] [stderr] Compiling regex v1.1.7 [INFO] [stderr] Compiling crossbeam-epoch v0.6.1 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling crossbeam-deque v0.6.3 [INFO] [stderr] Compiling openssl v0.10.23 [INFO] [stderr] Compiling cookie v0.12.0 [INFO] [stderr] Compiling chrono v0.4.6 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling scoped-pool v1.0.0 [INFO] [stderr] Compiling futures-channel-preview v0.2.2 [INFO] [stderr] Compiling futures-io-preview v0.2.2 [INFO] [stderr] Compiling tokio-threadpool v0.1.14 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling flate2 v1.0.7 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling string v0.2.0 [INFO] [stderr] Compiling http v0.1.17 [INFO] [stderr] Compiling tokio-buf v0.1.1 [INFO] [stderr] Compiling parking_lot v0.6.4 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling futures-sink-preview v0.2.2 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-util-preview v0.2.2 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling crossbeam v0.5.0 [INFO] [stderr] Compiling tokio-reactor v0.1.9 [INFO] [stderr] Compiling native-tls v0.2.3 [INFO] [stderr] Compiling futures-executor-preview v0.2.2 [INFO] [stderr] Compiling tokio-tcp v0.1.3 [INFO] [stderr] Compiling tokio v0.1.21 [INFO] [stderr] Compiling futures-stable-preview v0.2.3 [INFO] [stderr] Compiling futures-async-runtime-preview v0.2.3 [INFO] [stderr] Compiling futures-preview v0.2.2 [INFO] [stderr] Compiling http-body v0.1.0 [INFO] [stderr] Compiling h2 v0.1.23 [INFO] [stderr] Compiling publicsuffix v1.5.2 [INFO] [stderr] Compiling futures-executor-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling structopt-derive v0.2.16 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling structopt v0.2.16 [INFO] [stderr] Compiling hyper v0.12.30 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling hyper-tls v0.3.2 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling serde_urlencoded v0.5.5 [INFO] [stderr] Compiling cookie_store v0.7.0 [INFO] [stderr] Compiling reqwest v0.9.18 [INFO] [stderr] Compiling iota-lib-rs v0.1.3 [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iota-lib-rs-0.1.3/src/lib.rs:56:1 [INFO] [stderr] | [INFO] [stderr] 56 | #![feature(futures_api)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iota-lib-rs-0.1.3/src/lib.rs:57:1 [INFO] [stderr] | [INFO] [stderr] 57 | #![feature(async_await)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iota-lib-rs-0.1.3/src/lib.rs:58:1 [INFO] [stderr] | [INFO] [stderr] 58 | #![feature(await_macro)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/iota-lib-rs-0.1.3/src/lib.rs:59:1 [INFO] [stderr] | [INFO] [stderr] 59 | #![feature(nll)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 4 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `iota-lib-rs`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "c35ee7258a9c497eb648345c782aa323958806507b764c2a33783f12127c9cc8"` [INFO] running `"docker" "rm" "-f" "c35ee7258a9c497eb648345c782aa323958806507b764c2a33783f12127c9cc8"` [INFO] [stdout] c35ee7258a9c497eb648345c782aa323958806507b764c2a33783f12127c9cc8