[INFO] updating cached repository AnthonyMedina/rusty-server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AnthonyMedina/rusty-server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AnthonyMedina/rusty-server" "work/ex/beta-1.38-1/sources/1.37.0/gh/AnthonyMedina/rusty-server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/AnthonyMedina/rusty-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AnthonyMedina/rusty-server" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AnthonyMedina/rusty-server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AnthonyMedina/rusty-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e15678a5cf409bfcc67b24bcf982554911768a9
[INFO] sha for GitHub repo AnthonyMedina/rusty-server: 1e15678a5cf409bfcc67b24bcf982554911768a9
[INFO] validating manifest of AnthonyMedina/rusty-server 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 AnthonyMedina/rusty-server 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 AnthonyMedina/rusty-server
[INFO] finished frobbing AnthonyMedina/rusty-server
[INFO] frobbed toml for AnthonyMedina/rusty-server written to work/ex/beta-1.38-1/sources/1.37.0/gh/AnthonyMedina/rusty-server/Cargo.toml
[INFO] started frobbing AnthonyMedina/rusty-server
[INFO] finished frobbing AnthonyMedina/rusty-server
[INFO] frobbed toml for AnthonyMedina/rusty-server written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AnthonyMedina/rusty-server/Cargo.toml
[INFO] crate AnthonyMedina/rusty-server 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 AnthonyMedina/rusty-server against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/AnthonyMedina/rusty-server:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9c21991e33a66b694b6fd02cfd6e1af53a00291b756da8bc496074708d6795af
[INFO] running `"docker" "start" "-a" "9c21991e33a66b694b6fd02cfd6e1af53a00291b756da8bc496074708d6795af"`
[INFO] [stderr]    Compiling server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]  --> src/lib.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub fn new(size: usize) -> ThreadPool {
[INFO] [stderr]   |                ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]  --> src/lib.rs:7:30
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn execute<F>(&self, f: F)
[INFO] [stderr]   |                              ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "9c21991e33a66b694b6fd02cfd6e1af53a00291b756da8bc496074708d6795af"`
[INFO] running `"docker" "rm" "-f" "9c21991e33a66b694b6fd02cfd6e1af53a00291b756da8bc496074708d6795af"`
[INFO] [stdout] 9c21991e33a66b694b6fd02cfd6e1af53a00291b756da8bc496074708d6795af
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/AnthonyMedina/rusty-server:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 79a167130fcb420a6f81d16246e840a1065c9ad818733895ff0600f96799da30
[INFO] running `"docker" "start" "-a" "79a167130fcb420a6f81d16246e840a1065c9ad818733895ff0600f96799da30"`
[INFO] [stderr]    Compiling server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]  --> src/lib.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub fn new(size: usize) -> ThreadPool {
[INFO] [stderr]   |                ^^^^ help: consider prefixing with an underscore: `_size`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]  --> src/lib.rs:7:30
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn execute<F>(&self, f: F)
[INFO] [stderr]   |                              ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "79a167130fcb420a6f81d16246e840a1065c9ad818733895ff0600f96799da30"`
[INFO] running `"docker" "rm" "-f" "79a167130fcb420a6f81d16246e840a1065c9ad818733895ff0600f96799da30"`
[INFO] [stdout] 79a167130fcb420a6f81d16246e840a1065c9ad818733895ff0600f96799da30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/AnthonyMedina/rusty-server:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 10984a7f2527f107f167a5aa9fcc2851441e3b77c82779c90f80ca19b337e3a3
[INFO] running `"docker" "start" "-a" "10984a7f2527f107f167a5aa9fcc2851441e3b77c82779c90f80ca19b337e3a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/server-6deabf27527e32ae
[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] [stderr]      Running /opt/crater/target/debug/deps/server-ee5ac7d2baa2fa47
[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] [stderr]    Doc-tests server
[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" "10984a7f2527f107f167a5aa9fcc2851441e3b77c82779c90f80ca19b337e3a3"`
[INFO] running `"docker" "rm" "-f" "10984a7f2527f107f167a5aa9fcc2851441e3b77c82779c90f80ca19b337e3a3"`
[INFO] [stdout] 10984a7f2527f107f167a5aa9fcc2851441e3b77c82779c90f80ca19b337e3a3