[INFO] updating cached repository https://github.com/TrueDoughnut/Rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] fc3009ddc8edd3f99dd24cc5f7aca5ca24012b92
[INFO] testing TrueDoughnut/Rust against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrueDoughnut%2FRust" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TrueDoughnut/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/TrueDoughnut/Rust
[INFO] finished tweaking git repo https://github.com/TrueDoughnut/Rust
[INFO] tweaked toml for git repo https://github.com/TrueDoughnut/Rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/TrueDoughnut/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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 8f701a54a087b94da8959607bf44cd785c585f30e7fe687b65bb862c368c39cc
[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" "8f701a54a087b94da8959607bf44cd785c585f30e7fe687b65bb862c368c39cc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rand_isaac v0.1.0
[INFO] [stderr]    Compiling rand v0.6.0
[INFO] [stderr]    Compiling Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/collections/company.rs:14:33
[INFO] [stderr]    |
[INFO] [stderr] 14 |             .expect("Failure"); ;
[INFO] [stderr]    |                                 ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `entered` as mutable because it is also borrowed as immutable
[INFO] [stderr]   --> src/collections/company.rs:13:31
[INFO] [stderr]    |
[INFO] [stderr] 13 |         io::stdin().read_line(&mut entered)
[INFO] [stderr]    |                               ^^^^^^^^^^^^ mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 16 |         let vec: Vec<&str> = entered.split(" ").collect();
[INFO] [stderr]    |                              ------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 25 |             if map.contains_key(last) {
[INFO] [stderr]    |                --- immutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: could not compile `Rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8f701a54a087b94da8959607bf44cd785c585f30e7fe687b65bb862c368c39cc"`
[INFO] running `"docker" "rm" "-f" "8f701a54a087b94da8959607bf44cd785c585f30e7fe687b65bb862c368c39cc"`
[INFO] [stdout] 8f701a54a087b94da8959607bf44cd785c585f30e7fe687b65bb862c368c39cc