[INFO] updating cached repository wmealing/prelim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wmealing/prelim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wmealing/prelim" "work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wmealing/prelim" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3b9394e4995f1356aec78c30b38756d1640d93f8
[INFO] sha for GitHub repo wmealing/prelim: 3b9394e4995f1356aec78c30b38756d1640d93f8
[INFO] validating manifest of wmealing/prelim on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wmealing/prelim on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wmealing/prelim
[INFO] finished frobbing wmealing/prelim
[INFO] frobbed toml for wmealing/prelim written to work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim/Cargo.toml
[INFO] started frobbing wmealing/prelim
[INFO] finished frobbing wmealing/prelim
[INFO] frobbed toml for wmealing/prelim written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim/Cargo.toml
[INFO] crate wmealing/prelim already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wmealing/prelim against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5f0dd99e307fb00de8c528a607a92ff06893c79d5e72985a94701f3812f10026
[INFO] running `"docker" "start" "-a" "5f0dd99e307fb00de8c528a607a92ff06893c79d5e72985a94701f3812f10026"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling rev_lines v0.2.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling prelim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |         Err(e) => {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.55s
[INFO] running `"docker" "inspect" "5f0dd99e307fb00de8c528a607a92ff06893c79d5e72985a94701f3812f10026"`
[INFO] running `"docker" "rm" "-f" "5f0dd99e307fb00de8c528a607a92ff06893c79d5e72985a94701f3812f10026"`
[INFO] [stdout] 5f0dd99e307fb00de8c528a607a92ff06893c79d5e72985a94701f3812f10026
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d112567caae34060d0018934ea4f870d4de041e425cc2a16c850de57d103af77
[INFO] running `"docker" "start" "-a" "d112567caae34060d0018934ea4f870d4de041e425cc2a16c850de57d103af77"`
[INFO] [stderr]    Compiling prelim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |         Err(e) => {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "d112567caae34060d0018934ea4f870d4de041e425cc2a16c850de57d103af77"`
[INFO] running `"docker" "rm" "-f" "d112567caae34060d0018934ea4f870d4de041e425cc2a16c850de57d103af77"`
[INFO] [stdout] d112567caae34060d0018934ea4f870d4de041e425cc2a16c850de57d103af77
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 31a0c05c9e5de774ff217789851fc0c1509c3ae46e5bdcb942a6577b7cce034f
[INFO] running `"docker" "start" "-a" "31a0c05c9e5de774ff217789851fc0c1509c3ae46e5bdcb942a6577b7cce034f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prelim-7932db1f6df140d7
[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" "31a0c05c9e5de774ff217789851fc0c1509c3ae46e5bdcb942a6577b7cce034f"`
[INFO] running `"docker" "rm" "-f" "31a0c05c9e5de774ff217789851fc0c1509c3ae46e5bdcb942a6577b7cce034f"`
[INFO] [stdout] 31a0c05c9e5de774ff217789851fc0c1509c3ae46e5bdcb942a6577b7cce034f