[INFO] updating cached repository https://github.com/colindjk/chatter_bug
[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] 7c8ec73cc6037f619f0d0dec5c0207f3bf65c6e9
[INFO] testing colindjk/chatter_bug against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolindjk%2Fchatter_bug" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colindjk/chatter_bug 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/colindjk/chatter_bug
[INFO] finished tweaking git repo https://github.com/colindjk/chatter_bug
[INFO] tweaked toml for git repo https://github.com/colindjk/chatter_bug written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/colindjk/chatter_bug 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] [stderr] error: the lock file /big/crater/work/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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] f00812a19a4b6461912798f54c4163b0bcc782771035c35a0f366bd9b65a6c53
[INFO] running `"docker" "start" "-a" "f00812a19a4b6461912798f54c4163b0bcc782771035c35a0f366bd9b65a6c53"`
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling sha1 v0.1.1
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling chat_service v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `mio::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use mio::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `mio::tcp::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use mio::tcp::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::SocketAddr`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::net::SocketAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::mpsc`
[INFO] [stderr]  --> src/server.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::mpsc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::SocketAddr`
[INFO] [stderr]  --> src/client.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::net::SocketAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `server::*`
[INFO] [stderr]   --> src/client.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use server::*;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Sha1`
[INFO] [stderr]  --> src/serializer.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | use sha1::{ Sha1 };
[INFO] [stderr]   |             ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/server.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/client.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 Ok(Some(len)) => {
[INFO] [stderr]    |                         ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:66:25
[INFO] [stderr]    |
[INFO] [stderr] 66 |                     let mut client = self.clients.get_mut(&token).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/server.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/server.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     pub fn new(new_socket: TcpListener,
[INFO] [stderr] 23 | |                new_clients: HashMap<Token, WebSocketClient>,
[INFO] [stderr] 24 | |                new_token_counter: usize) -> WebSocketServer {
[INFO] [stderr] 25 | |         WebSocketServer {
[INFO] [stderr] ...  |
[INFO] [stderr] 29 | |         }
[INFO] [stderr] 30 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_socket`
[INFO] [stderr]   --> src/server.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn get_socket(&self) -> &TcpListener {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `http_parser`
[INFO] [stderr]   --> src/client.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     http_parser: Parser<HttpParser>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.93s
[INFO] running `"docker" "inspect" "f00812a19a4b6461912798f54c4163b0bcc782771035c35a0f366bd9b65a6c53"`
[INFO] running `"docker" "rm" "-f" "f00812a19a4b6461912798f54c4163b0bcc782771035c35a0f366bd9b65a6c53"`
[INFO] [stdout] f00812a19a4b6461912798f54c4163b0bcc782771035c35a0f366bd9b65a6c53
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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] 738f282f0c523d0451f2b09df6a4131c1b9227d9e2f1155c2c09f093c0bd2813
[INFO] running `"docker" "start" "-a" "738f282f0c523d0451f2b09df6a4131c1b9227d9e2f1155c2c09f093c0bd2813"`
[INFO] [stderr]    Compiling chat_service v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `mio::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use mio::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `mio::tcp::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use mio::tcp::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::SocketAddr`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::net::SocketAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::mpsc`
[INFO] [stderr]  --> src/server.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::mpsc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::SocketAddr`
[INFO] [stderr]  --> src/client.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::net::SocketAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `server::*`
[INFO] [stderr]   --> src/client.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use server::*;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Sha1`
[INFO] [stderr]  --> src/serializer.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | use sha1::{ Sha1 };
[INFO] [stderr]   |             ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/server.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/client.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |                 Ok(Some(len)) => {
[INFO] [stderr]    |                         ^^^ help: consider prefixing with an underscore: `_len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:66:25
[INFO] [stderr]    |
[INFO] [stderr] 66 |                     let mut client = self.clients.get_mut(&token).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/server.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/server.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     pub fn new(new_socket: TcpListener,
[INFO] [stderr] 23 | |                new_clients: HashMap<Token, WebSocketClient>,
[INFO] [stderr] 24 | |                new_token_counter: usize) -> WebSocketServer {
[INFO] [stderr] 25 | |         WebSocketServer {
[INFO] [stderr] ...  |
[INFO] [stderr] 29 | |         }
[INFO] [stderr] 30 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_socket`
[INFO] [stderr]   --> src/server.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn get_socket(&self) -> &TcpListener {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `http_parser`
[INFO] [stderr]   --> src/client.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     http_parser: Parser<HttpParser>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "738f282f0c523d0451f2b09df6a4131c1b9227d9e2f1155c2c09f093c0bd2813"`
[INFO] running `"docker" "rm" "-f" "738f282f0c523d0451f2b09df6a4131c1b9227d9e2f1155c2c09f093c0bd2813"`
[INFO] [stdout] 738f282f0c523d0451f2b09df6a4131c1b9227d9e2f1155c2c09f093c0bd2813
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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] b05ba229b82593ee7de1c7062be16cbb302505a2190d5450f738cf3134b698ae
[INFO] running `"docker" "start" "-a" "b05ba229b82593ee7de1c7062be16cbb302505a2190d5450f738cf3134b698ae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chat_service-bd2e561cbc1957aa
[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" "b05ba229b82593ee7de1c7062be16cbb302505a2190d5450f738cf3134b698ae"`
[INFO] running `"docker" "rm" "-f" "b05ba229b82593ee7de1c7062be16cbb302505a2190d5450f738cf3134b698ae"`
[INFO] [stdout] b05ba229b82593ee7de1c7062be16cbb302505a2190d5450f738cf3134b698ae