[INFO] cloning repository https://github.com/EstebanBorai/low-level-chat-solution [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EstebanBorai/low-level-chat-solution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEstebanBorai%2Flow-level-chat-solution", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEstebanBorai%2Flow-level-chat-solution'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2366ea961b5b25b8f2804dee373718ea079d4e4d [INFO] checking EstebanBorai/low-level-chat-solution against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEstebanBorai%2Flow-level-chat-solution" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/EstebanBorai/low-level-chat-solution on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/EstebanBorai/low-level-chat-solution [INFO] finished tweaking git repo https://github.com/EstebanBorai/low-level-chat-solution [INFO] tweaked toml for git repo https://github.com/EstebanBorai/low-level-chat-solution written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/EstebanBorai/low-level-chat-solution already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded http-muncher v0.2.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 506d0c34da24d5b8f9ae7223ef04ebd06d958fef5060731b0d05a4632076ef40 [INFO] running `Command { std: "docker" "start" "-a" "506d0c34da24d5b8f9ae7223ef04ebd06d958fef5060731b0d05a4632076ef40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "506d0c34da24d5b8f9ae7223ef04ebd06d958fef5060731b0d05a4632076ef40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "506d0c34da24d5b8f9ae7223ef04ebd06d958fef5060731b0d05a4632076ef40", kill_on_drop: false }` [INFO] [stdout] 506d0c34da24d5b8f9ae7223ef04ebd06d958fef5060731b0d05a4632076ef40 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 45c2baa2b1ceace9da39b739336a73ab777bee1559c558825f81ff02df2a73b9 [INFO] running `Command { std: "docker" "start" "-a" "45c2baa2b1ceace9da39b739336a73ab777bee1559c558825f81ff02df2a73b9", kill_on_drop: false }` [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Checking slab v0.1.3 [INFO] [stderr] Checking bytes v0.3.0 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling ws2_32-sys v0.2.1 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Compiling http-muncher v0.2.5 [INFO] [stderr] Checking sha1 v0.1.1 [INFO] [stderr] Checking net2 v0.2.35 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking nix v0.5.1 [INFO] [stderr] Checking miow v0.1.5 [INFO] [stderr] Checking mio v0.5.1 [INFO] [stderr] Checking low-level-websocket-solution v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/server.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 58 | token => { [INFO] [stdout] | ----- matches any value [INFO] [stdout] ... [INFO] [stdout] 72 | _ => println!("Received invalid token: {:?}", token), [INFO] [stdout] | ^ unreachable pattern [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/server.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 58 | token => { [INFO] [stdout] | ----- matches any value [INFO] [stdout] ... [INFO] [stdout] 72 | _ => println!("Received invalid token: {:?}", token), [INFO] [stdout] | ^ unreachable pattern [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:77:17 [INFO] [stdout] | [INFO] [stdout] 77 | let mut client = self.clients.get_mut(&token).unwrap(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:77:17 [INFO] [stdout] | [INFO] [stdout] 77 | let mut client = self.clients.get_mut(&token).unwrap(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `gen_key` is never used [INFO] [stdout] --> src/security.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn gen_key(key: &String) -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `gen_key` is never used [INFO] [stdout] --> src/security.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn gen_key(key: &String) -> String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.47s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "45c2baa2b1ceace9da39b739336a73ab777bee1559c558825f81ff02df2a73b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45c2baa2b1ceace9da39b739336a73ab777bee1559c558825f81ff02df2a73b9", kill_on_drop: false }` [INFO] [stdout] 45c2baa2b1ceace9da39b739336a73ab777bee1559c558825f81ff02df2a73b9