[INFO] updating cached repository nrxus/advent_2018 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/nrxus/advent_2018 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/nrxus/advent_2018" "work/ex/beta-1.38-1/sources/1.37.0/gh/nrxus/advent_2018"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nrxus/advent_2018'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/nrxus/advent_2018" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nrxus/advent_2018"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nrxus/advent_2018'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] df93fde1bcd1c67d18b365659e21c3fe3a3e04d0 [INFO] sha for GitHub repo nrxus/advent_2018: df93fde1bcd1c67d18b365659e21c3fe3a3e04d0 [INFO] validating manifest of nrxus/advent_2018 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 nrxus/advent_2018 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 nrxus/advent_2018 [INFO] finished frobbing nrxus/advent_2018 [INFO] frobbed toml for nrxus/advent_2018 written to work/ex/beta-1.38-1/sources/1.37.0/gh/nrxus/advent_2018/Cargo.toml [INFO] started frobbing nrxus/advent_2018 [INFO] finished frobbing nrxus/advent_2018 [INFO] frobbed toml for nrxus/advent_2018 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nrxus/advent_2018/Cargo.toml [INFO] crate nrxus/advent_2018 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 nrxus/advent_2018 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/nrxus/advent_2018:/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] 44abc8bb0e01c466c551086bc56f1501d049b1702f508ab9b71904eb5cc042cf [INFO] running `"docker" "start" "-a" "44abc8bb0e01c466c551086bc56f1501d049b1702f508ab9b71904eb5cc042cf"` [INFO] [stderr] Compiling crc32fast v1.1.1 [INFO] [stderr] Compiling reexport-proc-macro v1.0.5 [INFO] [stderr] Compiling array-macro v1.0.2 [INFO] [stderr] Compiling strum v0.13.0 [INFO] [stderr] Compiling memchr v2.1.2 [INFO] [stderr] Compiling bytes v0.4.11 [INFO] [stderr] Compiling uuid v0.7.1 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling cookie v0.11.0 [INFO] [stderr] Compiling openssl v0.10.15 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling syn v0.15.23 [INFO] [stderr] Compiling serde_urlencoded v0.5.4 [INFO] [stderr] Compiling phf_generator v0.7.23 [INFO] [stderr] Compiling aho-corasick v0.6.9 [INFO] [stderr] Compiling parking_lot v0.6.4 [INFO] [stderr] Compiling tokio-io v0.1.10 [INFO] [stderr] Compiling http v0.1.14 [INFO] [stderr] Compiling phf_codegen v0.7.23 [INFO] [stderr] Compiling tokio-threadpool v0.1.9 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling libflate v0.1.19 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling tokio-reactor v0.1.7 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.6 [INFO] [stderr] Compiling tokio-fs v0.1.4 [INFO] [stderr] Compiling tokio-udp v0.1.3 [INFO] [stderr] Compiling tokio-tcp v0.1.2 [INFO] [stderr] Compiling tokio-uds v0.2.4 [INFO] [stderr] Compiling native-tls v0.2.2 [INFO] [stderr] Compiling tokio v0.1.13 [INFO] [stderr] Compiling h2 v0.1.13 [INFO] [stderr] Compiling enum-map-derive v0.4.0 [INFO] [stderr] Compiling strum_macros v0.13.0 [INFO] [stderr] Compiling enum-map v0.4.1 [INFO] [stderr] Compiling hyper v0.12.16 [INFO] [stderr] Compiling hyper-tls v0.3.1 [INFO] [stderr] Compiling reqwest v0.9.5 [INFO] [stderr] Compiling advent_2018 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/fifteen_a.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(never_type)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/fifteen_a.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(bind_by_move_pattern_guards)] [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 `advent_2018`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ten_a.rs:47:20 [INFO] [stderr] | [INFO] [stderr] 47 | type Err = Box; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/seventeen_b.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(try_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/nineteen_a.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(try_trait)] [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 `advent_2018`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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 `advent_2018`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "44abc8bb0e01c466c551086bc56f1501d049b1702f508ab9b71904eb5cc042cf"` [INFO] running `"docker" "rm" "-f" "44abc8bb0e01c466c551086bc56f1501d049b1702f508ab9b71904eb5cc042cf"` [INFO] [stdout] 44abc8bb0e01c466c551086bc56f1501d049b1702f508ab9b71904eb5cc042cf