[INFO] updating cached repository acmumn/chat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/acmumn/chat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/acmumn/chat" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/acmumn/chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/acmumn/chat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/acmumn/chat" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/acmumn/chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/acmumn/chat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0cb4940f0ab5e72265004601876490eceb504d9a
[INFO] sha for GitHub repo acmumn/chat: 0cb4940f0ab5e72265004601876490eceb504d9a
[INFO] validating manifest of acmumn/chat on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of acmumn/chat on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing acmumn/chat
[INFO] finished frobbing acmumn/chat
[INFO] frobbed toml for acmumn/chat written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/acmumn/chat/Cargo.toml
[INFO] started frobbing acmumn/chat
[INFO] finished frobbing acmumn/chat
[INFO] frobbed toml for acmumn/chat written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/acmumn/chat/Cargo.toml
[INFO] crate acmumn/chat has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing acmumn/chat against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/acmumn/chat:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 7f5284f2cb3fd8942a502a9241a7ee39d948468d4ac5c227dd9654eeb41dea0f
[INFO] running `"docker" "start" "-a" "7f5284f2cb3fd8942a502a9241a7ee39d948468d4ac5c227dd9654eeb41dea0f"`
[INFO] [stderr]    Compiling ring v0.13.3
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling tokio-mockstream v1.1.0
[INFO] [stderr]    Compiling rusqlite v0.15.0
[INFO] [stderr]    Compiling structopt-derive v0.2.13
[INFO] [stderr]    Compiling tokio-tls v0.2.0
[INFO] [stderr]    Compiling irc v0.13.6
[INFO] [stderr]    Compiling structopt v0.2.13
[INFO] [stderr]    Compiling sct v0.4.0
[INFO] [stderr]    Compiling webpki v0.18.1
[INFO] [stderr]    Compiling rustls v0.14.0
[INFO] [stderr]    Compiling webpki-roots v0.15.0
[INFO] [stderr]    Compiling tokio-rustls v0.8.0
[INFO] [stderr]    Compiling actix-net v0.2.2
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TcpConnect`
[INFO] [stderr]  --> src/server.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use TcpConnect;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `framed`
[INFO] [stderr]   --> src/client.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         framed: FramedWrite<WriteHalf<TcpStream>, ClientCodec>,
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_framed`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/client.rs:33:40
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn handle(&mut self, msg: Request, ctx: &mut Self::Context) {
[INFO] [stderr]    |                                        ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/server.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn handle(&mut self, msg: messages::ClientConnect, _: &mut Context<Self>) -> Self::Result {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Client`
[INFO] [stderr]   --> src/client.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Client {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `server`
[INFO] [stderr]   --> src/client.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     server: Addr<Server>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `addr`
[INFO] [stderr]  --> src/messages.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     addr: Addr<Session>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `clients`
[INFO] [stderr]   --> src/server.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     clients: HashMap<usize, Addr<Session>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `counter`
[INFO] [stderr]   --> src/server.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     counter: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]  --> src/user.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct User {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sys`
[INFO] [stderr]  --> src/main.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let sys = System::run(|| {
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_sys`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `"docker" "inspect" "7f5284f2cb3fd8942a502a9241a7ee39d948468d4ac5c227dd9654eeb41dea0f"`
[INFO] running `"docker" "rm" "-f" "7f5284f2cb3fd8942a502a9241a7ee39d948468d4ac5c227dd9654eeb41dea0f"`
[INFO] [stdout] 7f5284f2cb3fd8942a502a9241a7ee39d948468d4ac5c227dd9654eeb41dea0f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/acmumn/chat:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 313567f8c21932ad2ade43b4d3b8d1e404cb79d2095aa3549ce2c36821a4ad3e
[INFO] running `"docker" "start" "-a" "313567f8c21932ad2ade43b4d3b8d1e404cb79d2095aa3549ce2c36821a4ad3e"`
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TcpConnect`
[INFO] [stderr]  --> src/server.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use TcpConnect;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `framed`
[INFO] [stderr]   --> src/client.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         framed: FramedWrite<WriteHalf<TcpStream>, ClientCodec>,
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_framed`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/client.rs:33:40
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn handle(&mut self, msg: Request, ctx: &mut Self::Context) {
[INFO] [stderr]    |                                        ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/server.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn handle(&mut self, msg: messages::ClientConnect, _: &mut Context<Self>) -> Self::Result {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Client`
[INFO] [stderr]   --> src/client.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Client {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `server`
[INFO] [stderr]   --> src/client.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     server: Addr<Server>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `addr`
[INFO] [stderr]  --> src/messages.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     addr: Addr<Session>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `clients`
[INFO] [stderr]   --> src/server.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     clients: HashMap<usize, Addr<Session>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `counter`
[INFO] [stderr]   --> src/server.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     counter: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]  --> src/user.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct User {}
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sys`
[INFO] [stderr]  --> src/main.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let sys = System::run(|| {
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_sys`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `"docker" "inspect" "313567f8c21932ad2ade43b4d3b8d1e404cb79d2095aa3549ce2c36821a4ad3e"`
[INFO] running `"docker" "rm" "-f" "313567f8c21932ad2ade43b4d3b8d1e404cb79d2095aa3549ce2c36821a4ad3e"`
[INFO] [stdout] 313567f8c21932ad2ade43b4d3b8d1e404cb79d2095aa3549ce2c36821a4ad3e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/acmumn/chat:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 14badda69378e108394b35c790b67700ffea56c1f8e2765f38233ad2d0b70443
[INFO] running `"docker" "start" "-a" "14badda69378e108394b35c790b67700ffea56c1f8e2765f38233ad2d0b70443"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chat-315d1acd4820be22
[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/chat-73d826c1d46f0385
[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 chat
[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" "14badda69378e108394b35c790b67700ffea56c1f8e2765f38233ad2d0b70443"`
[INFO] running `"docker" "rm" "-f" "14badda69378e108394b35c790b67700ffea56c1f8e2765f38233ad2d0b70443"`
[INFO] [stdout] 14badda69378e108394b35c790b67700ffea56c1f8e2765f38233ad2d0b70443