[INFO] cloning repository https://github.com/mverleg/prover
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mverleg/prover" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmverleg%2Fprover"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmverleg%2Fprover'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f42a6f9fed24c439c53dcbbfa59ceba5b44361e
[INFO] testing mverleg/prover against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmverleg%2Fprover" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mverleg/prover 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/mverleg/prover
[INFO] finished tweaking git repo https://github.com/mverleg/prover
[INFO] tweaked toml for git repo https://github.com/mverleg/prover written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mverleg/prover 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] 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=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] cb18e27b5c896d1df634f9432a1784a360e7cd9d192090b273e3233d0bcf8f0f
[INFO] running `"docker" "start" "-a" "cb18e27b5c896d1df634f9432a1784a360e7cd9d192090b273e3233d0bcf8f0f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling bound_prover v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logic/mod.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Num(&'a Num<T>),
[INFO] [stderr]    |             ^^^^^^ help: use `dyn`: `dyn Num<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Num`
[INFO] [stderr]  --> src/logic/proposition.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use num::Num;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `logic::eql::Eql`
[INFO] [stderr]  --> src/notation.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use logic::eql::Eql;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `logic::gt::Gt`
[INFO] [stderr]  --> src/notation.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use logic::gt::Gt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `logic::lt::Lt`
[INFO] [stderr]  --> src/notation.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use logic::lt::Lt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Num`
[INFO] [stderr]  --> src/notation.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use num::Num;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0038]: the trait `num::Num` cannot be made into an object
[INFO] [stderr]    --> src/logic/mod.rs:14:13
[INFO] [stderr]     |
[INFO] [stderr] 14  |     Num(&'a Num<T>),
[INFO] [stderr]     |             ^^^^^^ the trait `num::Num` cannot be made into an object
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/num/mod.rs:6:50
[INFO] [stderr]     |
[INFO] [stderr] 6   | pub trait Num<T>: Difficulty + Display + Clone + PartialEq + Eq + Hash where T: Nr {
[INFO] [stderr]     |           ---                                    --------- ...because it uses `Self` as a type parameter in this
[INFO] [stderr]     |           |
[INFO] [stderr]     |           this trait cannot be made into an object...
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0038`.
[INFO] [stderr] error: could not compile `bound_prover`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cb18e27b5c896d1df634f9432a1784a360e7cd9d192090b273e3233d0bcf8f0f"`
[INFO] running `"docker" "rm" "-f" "cb18e27b5c896d1df634f9432a1784a360e7cd9d192090b273e3233d0bcf8f0f"`
[INFO] [stdout] cb18e27b5c896d1df634f9432a1784a360e7cd9d192090b273e3233d0bcf8f0f