[INFO] updating cached repository https://github.com/Schaeff/zokrates_wasm_resolver_playground
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0ab6732e715abd83a7b7bc766e0b10d34c75cf4a
[INFO] testing Schaeff/zokrates_wasm_resolver_playground against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchaeff%2Fzokrates_wasm_resolver_playground" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Schaeff/zokrates_wasm_resolver_playground on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Schaeff/zokrates_wasm_resolver_playground
[INFO] finished tweaking git repo https://github.com/Schaeff/zokrates_wasm_resolver_playground
[INFO] tweaked toml for git repo https://github.com/Schaeff/zokrates_wasm_resolver_playground written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Schaeff/zokrates_wasm_resolver_playground already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 0d8424698e75b2a6ecafcbc3bc8ca4a99146d62c3538b60db9939447e8fa5e39
[INFO] running `"docker" "start" "-a" "0d8424698e75b2a6ecafcbc3bc8ca4a99146d62c3538b60db9939447e8fa5e39"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.48
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling bumpalo v2.5.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.48
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling zokrates_core v0.3.12 (https://github.com/ZoKrates/ZoKrates?branch=simplify-resolver#e0eaa6b3)
[INFO] [stderr]    Compiling reduce v0.1.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling serde_bytes v0.10.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling blake2-rfc v0.2.18 (https://github.com/gtank/blake2-rfc?rev=7a5b5fc99ae483a0043db7547fb79a6fa44b88a9#7a5b5fc9)
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]    Compiling bincode v0.8.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling bstr v0.2.6
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling crossbeam v0.7.2
[INFO] [stderr]    Compiling backtrace v0.3.33
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]    Compiling from-pest v0.3.1
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.48
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.48
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling zokrates_parser v0.1.1 (https://github.com/ZoKrates/ZoKrates?branch=simplify-resolver#e0eaa6b3)
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.48
[INFO] [stderr]    Compiling single v1.0.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.48
[INFO] [stderr]    Compiling pest-ast v0.3.3
[INFO] [stderr]    Compiling js-sys v0.3.25
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling web-sys v0.3.25
[INFO] [stderr]    Compiling ff_derive v0.4.0 (https://github.com/matterinc/ff?tag=0.5#056a13b9)
[INFO] [stderr]    Compiling ff v0.5.0 (https://github.com/matterinc/ff?tag=0.5#056a13b9)
[INFO] [stderr]    Compiling pairing v0.16.2 (https://github.com/matterinc/pairing?tag=0.16.2#c2af46ca)
[INFO] [stderr]    Compiling zokrates_field v0.3.3 (https://github.com/ZoKrates/ZoKrates?branch=simplify-resolver#e0eaa6b3)
[INFO] [stderr]    Compiling bellman v0.2.0 (https://github.com/matterinc/bellman?tag=0.2.0#6e45a4b2)
[INFO] [stderr]    Compiling zokrates_pest_ast v0.1.1 (https://github.com/ZoKrates/ZoKrates?branch=simplify-resolver#e0eaa6b3)
[INFO] [stderr]    Compiling sapling-crypto v0.0.4 (https://github.com/matterinc/sapling-crypto?tag=0.0.4#6ac48e2f)
[INFO] [stderr]    Compiling zokrates_embed v0.1.0 (https://github.com/ZoKrates/ZoKrates?branch=simplify-resolver#e0eaa6b3)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/zokrates-bc4b6b685c9dd735/e0eaa6b/zokrates_core/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_patterns, box_syntax)]
[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 `zokrates_core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0d8424698e75b2a6ecafcbc3bc8ca4a99146d62c3538b60db9939447e8fa5e39"`
[INFO] running `"docker" "rm" "-f" "0d8424698e75b2a6ecafcbc3bc8ca4a99146d62c3538b60db9939447e8fa5e39"`
[INFO] [stdout] 0d8424698e75b2a6ecafcbc3bc8ca4a99146d62c3538b60db9939447e8fa5e39