[INFO] fetching crate salty 0.1.0-alpha.0...
[INFO] checking salty-0.1.0-alpha.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate salty 0.1.0-alpha.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate salty 0.1.0-alpha.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0eb4c6d042f4ee5cfd010c98f7067e47aa0ca20ef6fe80c7e7bb3dfdb936ec52
[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" "0eb4c6d042f4ee5cfd010c98f7067e47aa0ca20ef6fe80c7e7bb3dfdb936ec52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eb4c6d042f4ee5cfd010c98f7067e47aa0ca20ef6fe80c7e7bb3dfdb936ec52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb4c6d042f4ee5cfd010c98f7067e47aa0ca20ef6fe80c7e7bb3dfdb936ec52", kill_on_drop: false }`
[INFO] [stdout] 0eb4c6d042f4ee5cfd010c98f7067e47aa0ca20ef6fe80c7e7bb3dfdb936ec52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d093094c318f468a1bc2bd4d2961bbe8cd284d29a290f86db82f0dd11d2404f
[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" "5d093094c318f468a1bc2bd4d2961bbe8cd284d29a290f86db82f0dd11d2404f", kill_on_drop: false }`
[INFO] [stderr]    Compiling salty v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stdout] error: Please select exactly one of the available field implementation features:
[INFO] [stdout]   - tweetnacl
[INFO] [stdout]   - haase
[INFO] [stdout]    --> src/lib.rs:174:1
[INFO] [stdout]     |
[INFO] [stdout] 174 | / compile_error!("Please select exactly one of the available field implementation features:
[INFO] [stdout] 175 | |   - tweetnacl
[INFO] [stdout] 176 | |   - haase");
[INFO] [stdout]     | |____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0204]: the trait `Copy` may not be implemented for this type
[INFO] [stdout]   --> src/curve.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[derive(Clone,Copy,Debug,Default)]
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     [FieldElement; 4]
[INFO] [stdout]    |     ----------------- this field does not implement `Copy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0204`.
[INFO] [stdout] 
[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 `Command { std: "docker" "inspect" "5d093094c318f468a1bc2bd4d2961bbe8cd284d29a290f86db82f0dd11d2404f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d093094c318f468a1bc2bd4d2961bbe8cd284d29a290f86db82f0dd11d2404f", kill_on_drop: false }`
[INFO] [stdout] 5d093094c318f468a1bc2bd4d2961bbe8cd284d29a290f86db82f0dd11d2404f