[INFO] updating cached repository hamadakafu/rust_http_server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hamadakafu/rust_http_server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hamadakafu/rust_http_server" "work/ex/beta-1.38-1/sources/1.37.0/gh/hamadakafu/rust_http_server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hamadakafu/rust_http_server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hamadakafu/rust_http_server" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamadakafu/rust_http_server"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamadakafu/rust_http_server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 977bb89d40e94afa913e64a758671ad7edafc30d
[INFO] sha for GitHub repo hamadakafu/rust_http_server: 977bb89d40e94afa913e64a758671ad7edafc30d
[INFO] validating manifest of hamadakafu/rust_http_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 hamadakafu/rust_http_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 hamadakafu/rust_http_server
[INFO] finished frobbing hamadakafu/rust_http_server
[INFO] frobbed toml for hamadakafu/rust_http_server written to work/ex/beta-1.38-1/sources/1.37.0/gh/hamadakafu/rust_http_server/Cargo.toml
[INFO] started frobbing hamadakafu/rust_http_server
[INFO] finished frobbing hamadakafu/rust_http_server
[INFO] frobbed toml for hamadakafu/rust_http_server written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hamadakafu/rust_http_server/Cargo.toml
[INFO] crate hamadakafu/rust_http_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 hamadakafu/rust_http_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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hamadakafu/rust_http_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] 7cfad1f8b566bcfa28640d13cee86ec3086a3314c4df95675f30a9eab6a7b887
[INFO] running `"docker" "start" "-a" "7cfad1f8b566bcfa28640d13cee86ec3086a3314c4df95675f30a9eab6a7b887"`
[INFO] [stderr]    Compiling atty v0.2.12
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling rust_http_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Read`, `Write`, `self`
[INFO] [stderr]  --> src/lib.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 |     io::{self, BufRead, Read, Write},
[INFO] [stderr]   |          ^^^^           ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.01s
[INFO] running `"docker" "inspect" "7cfad1f8b566bcfa28640d13cee86ec3086a3314c4df95675f30a9eab6a7b887"`
[INFO] running `"docker" "rm" "-f" "7cfad1f8b566bcfa28640d13cee86ec3086a3314c4df95675f30a9eab6a7b887"`
[INFO] [stdout] 7cfad1f8b566bcfa28640d13cee86ec3086a3314c4df95675f30a9eab6a7b887
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hamadakafu/rust_http_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] 0930adf30216e4c3deb05dc5439b742f52ae0306f72b6cd5adb73d4a3815847e
[INFO] running `"docker" "start" "-a" "0930adf30216e4c3deb05dc5439b742f52ae0306f72b6cd5adb73d4a3815847e"`
[INFO] [stderr]    Compiling rust_http_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `Write`, `self`
[INFO] [stderr]  --> src/lib.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 |     io::{self, BufRead, Read, Write},
[INFO] [stderr]   |          ^^^^           ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `"docker" "inspect" "0930adf30216e4c3deb05dc5439b742f52ae0306f72b6cd5adb73d4a3815847e"`
[INFO] running `"docker" "rm" "-f" "0930adf30216e4c3deb05dc5439b742f52ae0306f72b6cd5adb73d4a3815847e"`
[INFO] [stdout] 0930adf30216e4c3deb05dc5439b742f52ae0306f72b6cd5adb73d4a3815847e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hamadakafu/rust_http_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] ac930fd58241c5bad98d515be90bab3ed858ec27ebb6a27e4ac1210ab450fea6
[INFO] running `"docker" "start" "-a" "ac930fd58241c5bad98d515be90bab3ed858ec27ebb6a27e4ac1210ab450fea6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_http_server-b385f6efe8ebbd6c
[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/rust_http_server-85b20039e5d937a8
[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 rust_http_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" "ac930fd58241c5bad98d515be90bab3ed858ec27ebb6a27e4ac1210ab450fea6"`
[INFO] running `"docker" "rm" "-f" "ac930fd58241c5bad98d515be90bab3ed858ec27ebb6a27e4ac1210ab450fea6"`
[INFO] [stdout] ac930fd58241c5bad98d515be90bab3ed858ec27ebb6a27e4ac1210ab450fea6