[INFO] updating cached repository ftlc/RustMessenger
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ftlc/RustMessenger
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ftlc/RustMessenger" "work/ex/beta-1.38-1/sources/1.37.0/gh/ftlc/RustMessenger"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ftlc/RustMessenger'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ftlc/RustMessenger" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ftlc/RustMessenger"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ftlc/RustMessenger'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d38c7349c825938bf8bf4ea0b363935416a318b
[INFO] sha for GitHub repo ftlc/RustMessenger: 1d38c7349c825938bf8bf4ea0b363935416a318b
[INFO] validating manifest of ftlc/RustMessenger 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 ftlc/RustMessenger 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 ftlc/RustMessenger
[INFO] finished frobbing ftlc/RustMessenger
[INFO] frobbed toml for ftlc/RustMessenger written to work/ex/beta-1.38-1/sources/1.37.0/gh/ftlc/RustMessenger/Cargo.toml
[INFO] started frobbing ftlc/RustMessenger
[INFO] finished frobbing ftlc/RustMessenger
[INFO] frobbed toml for ftlc/RustMessenger written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ftlc/RustMessenger/Cargo.toml
[INFO] crate ftlc/RustMessenger 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 ftlc/RustMessenger 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ftlc/RustMessenger:/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] 995a614a94e3c68521c56ab0dce70adea8f48d7075a126addc5c888cdc31439e
[INFO] running `"docker" "start" "-a" "995a614a94e3c68521c56ab0dce70adea8f48d7075a126addc5c888cdc31439e"`
[INFO] [stderr]    Compiling Server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SocketAddr`
[INFO] [stderr]  --> src/main.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::net::{TcpStream, SocketAddr};
[INFO] [stderr]   |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stderr]  --> src/main.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{Read, Write, BufReader, BufRead};
[INFO] [stderr]   |               ^^^^         ^^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut stream = stream.unwrap();
[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:36:19
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn handle_request(mut stream: TcpStream) {
[INFO] [stderr]    |                   ----^^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Server` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `server`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `"docker" "inspect" "995a614a94e3c68521c56ab0dce70adea8f48d7075a126addc5c888cdc31439e"`
[INFO] running `"docker" "rm" "-f" "995a614a94e3c68521c56ab0dce70adea8f48d7075a126addc5c888cdc31439e"`
[INFO] [stdout] 995a614a94e3c68521c56ab0dce70adea8f48d7075a126addc5c888cdc31439e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ftlc/RustMessenger:/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] 445d71d79d61bf840c1de5564e6860af1657002b641d4ff32e7ca22d25638629
[INFO] running `"docker" "start" "-a" "445d71d79d61bf840c1de5564e6860af1657002b641d4ff32e7ca22d25638629"`
[INFO] [stderr]    Compiling Server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SocketAddr`
[INFO] [stderr]  --> src/main.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::net::{TcpStream, SocketAddr};
[INFO] [stderr]   |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stderr]  --> src/main.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{Read, Write, BufReader, BufRead};
[INFO] [stderr]   |               ^^^^         ^^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut stream = stream.unwrap();
[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:36:19
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn handle_request(mut stream: TcpStream) {
[INFO] [stderr]    |                   ----^^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Server` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `server`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "445d71d79d61bf840c1de5564e6860af1657002b641d4ff32e7ca22d25638629"`
[INFO] running `"docker" "rm" "-f" "445d71d79d61bf840c1de5564e6860af1657002b641d4ff32e7ca22d25638629"`
[INFO] [stdout] 445d71d79d61bf840c1de5564e6860af1657002b641d4ff32e7ca22d25638629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ftlc/RustMessenger:/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] eef37973d6fd74fe7a47c884f6c75b77ee1b55d2333e2915cc03fbc0dd247284
[INFO] running `"docker" "start" "-a" "eef37973d6fd74fe7a47c884f6c75b77ee1b55d2333e2915cc03fbc0dd247284"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/Server-3099c82617066187
[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" "eef37973d6fd74fe7a47c884f6c75b77ee1b55d2333e2915cc03fbc0dd247284"`
[INFO] running `"docker" "rm" "-f" "eef37973d6fd74fe7a47c884f6c75b77ee1b55d2333e2915cc03fbc0dd247284"`
[INFO] [stdout] eef37973d6fd74fe7a47c884f6c75b77ee1b55d2333e2915cc03fbc0dd247284