[INFO] updating cached repository https://github.com/ifsheldon/simple_web_server
[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] f031667a3b682f45ac0ad8fd3fdb4dba592ff5b9
[INFO] testing ifsheldon/simple_web_server against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fifsheldon%2Fsimple_web_server" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ifsheldon/simple_web_server 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/ifsheldon/simple_web_server
[INFO] finished tweaking git repo https://github.com/ifsheldon/simple_web_server
[INFO] tweaked toml for git repo https://github.com/ifsheldon/simple_web_server written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ifsheldon/simple_web_server 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] 12544a0679be2a02bd0cef3ec6ae8855849e111fd880ea3cdb407e2752ea556f
[INFO] running `"docker" "start" "-a" "12544a0679be2a02bd0cef3ec6ae8855849e111fd880ea3cdb407e2752ea556f"`
[INFO] [stderr]    Compiling simple_web_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "12544a0679be2a02bd0cef3ec6ae8855849e111fd880ea3cdb407e2752ea556f"`
[INFO] running `"docker" "rm" "-f" "12544a0679be2a02bd0cef3ec6ae8855849e111fd880ea3cdb407e2752ea556f"`
[INFO] [stdout] 12544a0679be2a02bd0cef3ec6ae8855849e111fd880ea3cdb407e2752ea556f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] 44c60d54ef4e175652c0b129f42b63e1c0c4c3370fc9c00e38794a2be41cac8f
[INFO] running `"docker" "start" "-a" "44c60d54ef4e175652c0b129f42b63e1c0c4c3370fc9c00e38794a2be41cac8f"`
[INFO] [stderr]    Compiling simple_web_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]   --> src/file_cache.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     use std::borrow::BorrowMut;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cache`
[INFO] [stderr]   --> src/file_cache.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let cache = FileCache::new(String::from("403.html"), 1000).unwrap();
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_cache`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "44c60d54ef4e175652c0b129f42b63e1c0c4c3370fc9c00e38794a2be41cac8f"`
[INFO] running `"docker" "rm" "-f" "44c60d54ef4e175652c0b129f42b63e1c0c4c3370fc9c00e38794a2be41cac8f"`
[INFO] [stdout] 44c60d54ef4e175652c0b129f42b63e1c0c4c3370fc9c00e38794a2be41cac8f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] a195a9debe35417e556779651b3d3f93cecf4637a372da38f7d95a90fd944b92
[INFO] running `"docker" "start" "-a" "a195a9debe35417e556779651b3d3f93cecf4637a372da38f7d95a90fd944b92"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simple_web_server-382d2e2d6bb525f6
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test file_cache::test::test_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a195a9debe35417e556779651b3d3f93cecf4637a372da38f7d95a90fd944b92"`
[INFO] running `"docker" "rm" "-f" "a195a9debe35417e556779651b3d3f93cecf4637a372da38f7d95a90fd944b92"`
[INFO] [stdout] a195a9debe35417e556779651b3d3f93cecf4637a372da38f7d95a90fd944b92