[INFO] crate bls-like 0.1.0 is already in cache
[INFO] testing bls-like-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate bls-like 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate bls-like 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bls-like 0.1.0
[INFO] finished tweaking crates.io crate bls-like 0.1.0
[INFO] tweaked toml for crates.io crate bls-like 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebc1d0d9c665926bc5a3f7855918a9bd1418f963b0f6bb262e8efaeb9357fb10
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ebc1d0d9c665926bc5a3f7855918a9bd1418f963b0f6bb262e8efaeb9357fb10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebc1d0d9c665926bc5a3f7855918a9bd1418f963b0f6bb262e8efaeb9357fb10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebc1d0d9c665926bc5a3f7855918a9bd1418f963b0f6bb262e8efaeb9357fb10", kill_on_drop: false }`
[INFO] [stdout] ebc1d0d9c665926bc5a3f7855918a9bd1418f963b0f6bb262e8efaeb9357fb10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a991af1961784940d482eaa80e833245a5fc4f07923f4b4abbd83e35bb37d68f
[INFO] running `Command { std: "docker" "start" "-a" "a991af1961784940d482eaa80e833245a5fc4f07923f4b4abbd83e35bb37d68f", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling blake2b_simd v0.5.10
[INFO] [stderr]    Compiling ff_derive v0.3.0
[INFO] [stderr]    Compiling ff v0.4.0
[INFO] [stderr]    Compiling paired v0.15.1
[INFO] [stderr]    Compiling bls-like v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:85:1
[INFO] [stdout]    |
[INFO] [stdout] 85 | #![feature(associated_type_defaults)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distinct.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn cause(&self) -> Option<&::std::error::Error> { None }
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pop.rs:291:32
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn cause(&self) -> Option<&::std::error::Error> { None }
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: type mismatch resolving `<<Self as Signed>::PKnM as std::iter::Iterator>::Item == (Message, single::PublicKey<<Self as Signed>::E>)`
[INFO] [stdout]    --> src/lib.rs:370:25
[INFO] [stdout]     |
[INFO] [stdout] 360 | pub trait Signed: Sized {
[INFO] [stdout]     | ----------------------- required by `Signed`
[INFO] [stdout] ...
[INFO] [stdout] 370 |     type PKnM: Iterator<Item = (Self::M,Self::PKG)> + ExactSizeIterator;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Message`, found associated type
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected tuple `(Message, single::PublicKey<<Self as Signed>::E>)`
[INFO] [stdout]                found tuple `(<Self as Signed>::M, <Self as Signed>::PKG)`
[INFO] [stdout]     = help: consider constraining the associated type `<Self as Signed>::M` to `Message`
[INFO] [stdout]     = note: for more information, visit https://doc.rust-lang.org/book/ch19-03-advanced-traits.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0271, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bls-like`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a991af1961784940d482eaa80e833245a5fc4f07923f4b4abbd83e35bb37d68f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a991af1961784940d482eaa80e833245a5fc4f07923f4b4abbd83e35bb37d68f", kill_on_drop: false }`
[INFO] [stdout] a991af1961784940d482eaa80e833245a5fc4f07923f4b4abbd83e35bb37d68f