[INFO] updating cached repository https://github.com/tmwbook/rcsim
[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] 22f1998f1e470405db844ee6c7a5b81547a617c5
[INFO] testing tmwbook/rcsim against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmwbook%2Frcsim" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tmwbook/rcsim 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/tmwbook/rcsim
[INFO] finished tweaking git repo https://github.com/tmwbook/rcsim
[INFO] tweaked toml for git repo https://github.com/tmwbook/rcsim written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tmwbook/rcsim 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] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] 8482b665b4a8099c56eec432c3e13ec80362a2a57b988bc82fb351f1db0030b9
[INFO] running `"docker" "start" "-a" "8482b665b4a8099c56eec432c3e13ec80362a2a57b988bc82fb351f1db0030b9"`
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling atty v0.2.3
[INFO] [stderr]    Compiling clap v2.29.0
[INFO] [stderr]    Compiling rcsim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/main.rs:73:21
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let mut line = CacheLine{valid: false, tag: 0};
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let mut stats = Statistics {misses: 0, hits: 0, evictions: 0};
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut lines: Vec<CacheLine> = Vec::new();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:17
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let mut line = CacheLine{valid: false, tag: 0};
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.87s
[INFO] running `"docker" "inspect" "8482b665b4a8099c56eec432c3e13ec80362a2a57b988bc82fb351f1db0030b9"`
[INFO] running `"docker" "rm" "-f" "8482b665b4a8099c56eec432c3e13ec80362a2a57b988bc82fb351f1db0030b9"`
[INFO] [stdout] 8482b665b4a8099c56eec432c3e13ec80362a2a57b988bc82fb351f1db0030b9
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] c328c0b20f5b321563bf101a32c6781bc153aa03dc80b20af17e509101fc0a8f
[INFO] running `"docker" "start" "-a" "c328c0b20f5b321563bf101a32c6781bc153aa03dc80b20af17e509101fc0a8f"`
[INFO] [stderr]    Compiling rcsim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/main.rs:73:21
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let mut line = CacheLine{valid: false, tag: 0};
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let mut stats = Statistics {misses: 0, hits: 0, evictions: 0};
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut lines: Vec<CacheLine> = Vec::new();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:17
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let mut line = CacheLine{valid: false, tag: 0};
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "c328c0b20f5b321563bf101a32c6781bc153aa03dc80b20af17e509101fc0a8f"`
[INFO] running `"docker" "rm" "-f" "c328c0b20f5b321563bf101a32c6781bc153aa03dc80b20af17e509101fc0a8f"`
[INFO] [stdout] c328c0b20f5b321563bf101a32c6781bc153aa03dc80b20af17e509101fc0a8f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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" "test" "--frozen"`
[INFO] [stdout] d9d2853a0702688a6da1d84b5af84c73910eef982c5e562ec6f75544d4a3cd9a
[INFO] running `"docker" "start" "-a" "d9d2853a0702688a6da1d84b5af84c73910eef982c5e562ec6f75544d4a3cd9a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rcsim-bdad8f1634e39cc7
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d9d2853a0702688a6da1d84b5af84c73910eef982c5e562ec6f75544d4a3cd9a"`
[INFO] running `"docker" "rm" "-f" "d9d2853a0702688a6da1d84b5af84c73910eef982c5e562ec6f75544d4a3cd9a"`
[INFO] [stdout] d9d2853a0702688a6da1d84b5af84c73910eef982c5e562ec6f75544d4a3cd9a