[INFO] fetching crate salty 0.1.0-alpha.0...
[INFO] checking salty-0.1.0-alpha.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate salty 0.1.0-alpha.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate salty 0.1.0-alpha.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate salty 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate salty 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate salty 0.1.0-alpha.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=forbid" "-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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d070ea903d4e4b18c0f78870e9391a449d59fd91b61a2cea89e9d8b37312cea3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d070ea903d4e4b18c0f78870e9391a449d59fd91b61a2cea89e9d8b37312cea3"`
[INFO] [stderr]    Compiling salty v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr] error: Please select exactly one of the available field implementation features:
[INFO] [stderr]   - tweetnacl
[INFO] [stderr]   - haase
[INFO] [stderr]    --> src/lib.rs:174:1
[INFO] [stderr]     |
[INFO] [stderr] 174 | / compile_error!("Please select exactly one of the available field implementation features:
[INFO] [stderr] 175 | |   - tweetnacl
[INFO] [stderr] 176 | |   - haase");
[INFO] [stderr]     | |____________^
[INFO] [stderr] 
[INFO] [stderr] error[E0204]: the trait `Copy` may not be implemented for this type
[INFO] [stderr]   --> src/curve.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[derive(Clone,Copy,Debug,Default)]
[INFO] [stderr]    |                ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     [FieldElement; 4]
[INFO] [stderr]    |     ----------------- this field does not implement `Copy`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0204`.
[INFO] [stderr] error: could not compile `salty`.
[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" "d070ea903d4e4b18c0f78870e9391a449d59fd91b61a2cea89e9d8b37312cea3"`
[INFO] running `"docker" "rm" "-f" "d070ea903d4e4b18c0f78870e9391a449d59fd91b61a2cea89e9d8b37312cea3"`
[INFO] [stdout] d070ea903d4e4b18c0f78870e9391a449d59fd91b61a2cea89e9d8b37312cea3