[INFO] cloning repository https://github.com/zegl/kram-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zegl/kram-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzegl%2Fkram-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzegl%2Fkram-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cff99c048aa188d71d57a3fa7a8bade0556178de
[INFO] testing zegl/kram-rust against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzegl%2Fkram-rust" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zegl/kram-rust 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/zegl/kram-rust
[INFO] finished tweaking git repo https://github.com/zegl/kram-rust
[INFO] tweaked toml for git repo https://github.com/zegl/kram-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/zegl/kram-rust 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6b6e962dab711d0285af87ccc94670bb9bf71a1a6738bfe1465176543d748622
[INFO] running `"docker" "start" "-a" "6b6e962dab711d0285af87ccc94670bb9bf71a1a6738bfe1465176543d748622"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling kram-rust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vm/mod.rs:11:19
[INFO] [stderr]    |
[INFO] [stderr] 11 |     classes: Vec<Box<Library>>,
[INFO] [stderr]    |                      ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `PUSH_CLASS` should have an upper camel case name
[INFO] [stderr]    --> src/vm/mod.rs:129:2
[INFO] [stderr]     |
[INFO] [stderr] 129 |     PUSH_CLASS,
[INFO] [stderr]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `PushClass`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm/mod.rs:230:17
[INFO] [stderr]     |
[INFO] [stderr] 230 |     Reference: Box<Library>,
[INFO] [stderr]     |                    ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/vm/mod.rs:260:34
[INFO] [stderr]     |
[INFO] [stderr] 260 |     pub fn reference(reference: Box<Library>) -> Value {
[INFO] [stderr]     |                                     ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lexer::Lexer`
[INFO] [stderr]  --> src/parser/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use lexer::Lexer;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `CLASS_BODY` should have an upper camel case name
[INFO] [stderr]    --> src/parser/mod.rs:527:2
[INFO] [stderr]     |
[INFO] [stderr] 527 |     CLASS_BODY,
[INFO] [stderr]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `ClassBody`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `PUSH_CLASS` should have an upper camel case name
[INFO] [stderr]    --> src/parser/mod.rs:528:2
[INFO] [stderr]     |
[INFO] [stderr] 528 |     PUSH_CLASS,
[INFO] [stderr]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `PushClass`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `METHOD_PARAMETERS` should have an upper camel case name
[INFO] [stderr]    --> src/parser/mod.rs:529:2
[INFO] [stderr]     |
[INFO] [stderr] 529 |     METHOD_PARAMETERS,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MethodParameters`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/libraries/mod.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 | impl std::fmt::Debug for Library {
[INFO] [stderr]   |                          ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `dyn libraries::Library: std::clone::Clone` is not satisfied
[INFO] [stderr]    --> src/vm/mod.rs:230:2
[INFO] [stderr]     |
[INFO] [stderr] 230 |     Reference: Box<Library>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::clone::Clone` is not implemented for `dyn libraries::Library`
[INFO] [stderr]     |
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::clone::Clone` for `std::boxed::Box<dyn libraries::Library>`
[INFO] [stderr]     = note: required by `std::clone::Clone::clone`
[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[E0063]: missing field `Reference` in initializer of `vm::Value`
[INFO] [stderr]    --> src/vm/mod.rs:241:3
[INFO] [stderr]     |
[INFO] [stderr] 241 |         Value {
[INFO] [stderr]     |         ^^^^^ missing `Reference`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/libraries/mod.rs:10:51
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stderr]    |        ---                                        ^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found `()`
[INFO] [stderr]    |        |
[INFO] [stderr]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr]    |
[INFO] [stderr]    = note:   expected enum `std::result::Result<(), std::fmt::Error>`
[INFO] [stderr]            found unit type `()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0063, E0277, E0308.
[INFO] [stderr] For more information about an error, try `rustc --explain E0063`.
[INFO] [stderr] error: could not compile `kram-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6b6e962dab711d0285af87ccc94670bb9bf71a1a6738bfe1465176543d748622"`
[INFO] running `"docker" "rm" "-f" "6b6e962dab711d0285af87ccc94670bb9bf71a1a6738bfe1465176543d748622"`
[INFO] [stdout] 6b6e962dab711d0285af87ccc94670bb9bf71a1a6738bfe1465176543d748622