[INFO] updating cached repository https://github.com/devguardio/conduit-example
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1f0c321c0ff47d23d5b0a25db8a1dc03a2649631
[INFO] checking devguardio/conduit-example against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevguardio%2Fconduit-example" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/devguardio/conduit-example on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/devguardio/conduit-example
[INFO] finished tweaking git repo https://github.com/devguardio/conduit-example
[INFO] tweaked toml for git repo https://github.com/devguardio/conduit-example written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/devguardio/conduit-example already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=allow" "-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-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5c70e1fbb6ab176045cdbfd8975a91f2f8f71db9e3f6e322e7f2ce634fd482da
[INFO] running `"docker" "start" "-a" "5c70e1fbb6ab176045cdbfd8975a91f2f8f71db9e3f6e322e7f2ce634fd482da"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling subtle v2.0.0
[INFO] [stderr]     Checking static_slice v0.0.3
[INFO] [stderr]     Checking mtdparts v0.2.0
[INFO] [stderr]     Checking bs58 v0.2.2
[INFO] [stderr]     Checking crc8 v0.1.1
[INFO] [stderr]     Checking gcmap v0.1.4
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling rand_jitter v0.1.1
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling hacl-star-sys v0.0.6
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking tinylogger v0.1.0
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]     Checking memchr v2.1.3
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling snow v0.4.2
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking hpack v0.3.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]     Checking block-buffer v0.7.2
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]    Compiling prost v0.4.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking hacl-star v0.0.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling curve25519-dalek v1.0.3
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking x25519-dalek v0.4.4
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling osaka-macros v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]     Checking osaka v0.2.7
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.1
[INFO] [stderr]     Checking which v2.0.1
[INFO] [stderr]    Compiling prost-derive v0.4.0
[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/osaka-0.2.7/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(generators, generator_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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/osaka-0.2.7/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(custom_attribute)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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/osaka-0.2.7/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(termination_trait_lib)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `resume` found for type `&mut X` in the current scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/osaka-0.2.7/src/lib.rs:124:29
[INFO] [stderr]     |
[INFO] [stderr] 124 |         match unsafe { self.resume() } {
[INFO] [stderr]     |                             ^^^^^^ method not found in `&mut X`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stderr] help: the following trait defines an item `resume`, perhaps you need to restrict type parameter `X` with it:
[INFO] [stderr]     |
[INFO] [stderr] 120 | impl<R,X: std::ops::Generator> Future<R> for X
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `osaka`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5c70e1fbb6ab176045cdbfd8975a91f2f8f71db9e3f6e322e7f2ce634fd482da"`
[INFO] running `"docker" "rm" "-f" "5c70e1fbb6ab176045cdbfd8975a91f2f8f71db9e3f6e322e7f2ce634fd482da"`
[INFO] [stdout] 5c70e1fbb6ab176045cdbfd8975a91f2f8f71db9e3f6e322e7f2ce634fd482da