[INFO] updating cached repository https://github.com/DR-BoneZ/borker-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/DR-BoneZ/borker-rs
[INFO] [stderr]    61c0ca4..6adb0c7  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6adb0c7bad01cda7583f638000da90835f9ffc72
[INFO] testing DR-BoneZ/borker-rs against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDR-BoneZ%2Fborker-rs" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DR-BoneZ/borker-rs on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/DR-BoneZ/borker-rs
[INFO] finished tweaking git repo https://github.com/DR-BoneZ/borker-rs
[INFO] tweaked toml for git repo https://github.com/DR-BoneZ/borker-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/DR-BoneZ/borker-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d16404752ff41e08610ed30bd2096cf7c463e84e85aece8923341ee495874771
[INFO] running `"docker" "start" "-a" "d16404752ff41e08610ed30bd2096cf7c463e84e85aece8923341ee495874771"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling bumpalo v3.3.0
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling wasm-bindgen v0.2.63
[INFO] [stderr]    Compiling opaque-debug v0.2.2
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling bech32 v0.5.0
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling memory_units v0.4.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling block-padding v0.1.3
[INFO] [stderr]    Compiling bitcoin_hashes v0.3.2
[INFO] [stderr]    Compiling getrandom v0.1.8
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling bitcoin-bech32 v0.8.1
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling ripemd160 v0.8.0
[INFO] [stderr]    Compiling hmac-drbg v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling secp256k1 v0.12.2
[INFO] [stderr]    Compiling backtrace v0.3.3
[INFO] [stderr]    Compiling bigdecimal v0.1.2
[INFO] [stderr]    Compiling libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.63
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling bitcoin v0.17.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.63
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.63
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wasm-bindgen-0.2.63/src/lib.rs:11:34
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![cfg_attr(feature = "nightly", feature(unsize))]
[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 `wasm-bindgen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d16404752ff41e08610ed30bd2096cf7c463e84e85aece8923341ee495874771"`
[INFO] running `"docker" "rm" "-f" "d16404752ff41e08610ed30bd2096cf7c463e84e85aece8923341ee495874771"`
[INFO] [stdout] d16404752ff41e08610ed30bd2096cf7c463e84e85aece8923341ee495874771