[INFO] updating cached repository https://github.com/hank-der-hafenarbeiter/compsim-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 44c138edd8cb7fe74bad4161f2d14643f480fd13
[INFO] testing hank-der-hafenarbeiter/compsim-rs against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhank-der-hafenarbeiter%2Fcompsim-rs" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hank-der-hafenarbeiter/compsim-rs on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hank-der-hafenarbeiter/compsim-rs
[INFO] finished tweaking git repo https://github.com/hank-der-hafenarbeiter/compsim-rs
[INFO] tweaked toml for git repo https://github.com/hank-der-hafenarbeiter/compsim-rs written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/hank-der-hafenarbeiter/compsim-rs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 676efbb55c49e5859352244e0f4f8e956fb7e1f073a9e9646b6308c4f7165f70
[INFO] running `"docker" "start" "-a" "676efbb55c49e5859352244e0f4f8e956fb7e1f073a9e9646b6308c4f7165f70"`
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling compsim-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(step_by)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Sub`
[INFO] [stderr]  --> src/utils.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Sub;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Reg`
[INFO] [stderr]   --> src/parser.rs:11:26
[INFO] [stderr]    |
[INFO] [stderr] 11 | use utils::{Instruction, Reg};
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:83:32
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `enum_primitive::FromPrimitive`
[INFO] [stderr]  --> src/test/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use enum_primitive::FromPrimitive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `description` found for type `&std::string::String` in the current scope
[INFO] [stderr]   --> src/parser.rs:77:60
[INFO] [stderr]    |
[INFO] [stderr] 77 |             ParseError::UnkownInstruction(ref err)  => err.description(),
[INFO] [stderr]    |                                                            ^^^^^^^^^^^ method not found in `&std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `std::string::String: std::error::Error` is not satisfied
[INFO] [stderr]   --> src/parser.rs:85:61
[INFO] [stderr]    |
[INFO] [stderr] 85 |             ParseError::UnkownInstruction(ref err)  => Some(err),
[INFO] [stderr]    |                                                             ^^^ the trait `std::error::Error` is not implemented for `std::string::String`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required for the cast to the object type `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `compsim-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "676efbb55c49e5859352244e0f4f8e956fb7e1f073a9e9646b6308c4f7165f70"`
[INFO] running `"docker" "rm" "-f" "676efbb55c49e5859352244e0f4f8e956fb7e1f073a9e9646b6308c4f7165f70"`
[INFO] [stdout] 676efbb55c49e5859352244e0f4f8e956fb7e1f073a9e9646b6308c4f7165f70