[INFO] cloning repository https://github.com/lawrencek0/telnet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lawrencek0/telnet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flawrencek0%2Ftelnet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flawrencek0%2Ftelnet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65e9ecdd52c9e906a233658804d91c5818ec08f5
[INFO] checking lawrencek0/telnet against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flawrencek0%2Ftelnet" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lawrencek0/telnet on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lawrencek0/telnet
[INFO] finished tweaking git repo https://github.com/lawrencek0/telnet
[INFO] tweaked toml for git repo https://github.com/lawrencek0/telnet written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/lawrencek0/telnet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df373a83edb8ffb323a9fe9f981a60365742019afd09dd916d0324d04e6d64fb
[INFO] running `Command { std: "docker" "start" "-a" "df373a83edb8ffb323a9fe9f981a60365742019afd09dd916d0324d04e6d64fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df373a83edb8ffb323a9fe9f981a60365742019afd09dd916d0324d04e6d64fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df373a83edb8ffb323a9fe9f981a60365742019afd09dd916d0324d04e6d64fb", kill_on_drop: false }`
[INFO] [stdout] df373a83edb8ffb323a9fe9f981a60365742019afd09dd916d0324d04e6d64fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97d411fa4d69eaf31ac966be6e4fed415cddfd93eaef39d187dc3f99ab315ee6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "97d411fa4d69eaf31ac966be6e4fed415cddfd93eaef39d187dc3f99ab315ee6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking crossterm v0.17.5
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.5.0
[INFO] [stderr]     Checking num_enum v0.5.0
[INFO] [stderr]     Checking telnet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::terminal`
[INFO] [stdout]  --> src/telnet/client.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::terminal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `terminal` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::terminal`
[INFO] [stdout]  --> src/telnet/client.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::terminal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `terminal` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     loop {
[INFO] [stdout] 8  | |         client.process()?;
[INFO] [stdout] 9  | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 10 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     loop {
[INFO] [stdout] 8  | |         client.process()?;
[INFO] [stdout] 9  | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 10 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/telnet/client.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 244 | /         loop {
[INFO] [stdout] 245 | |             if let Ok((n, input)) = self.input_channel.try_recv() {
[INFO] [stdout] 246 | |                 self.output.write_all(&input[..n])?;
[INFO] [stdout] 247 | |             }
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |             self.output.flush()?;
[INFO] [stdout] 251 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 252 | 
[INFO] [stdout] 253 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/telnet/client.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 244 | /         loop {
[INFO] [stdout] 245 | |             if let Ok((n, input)) = self.input_channel.try_recv() {
[INFO] [stdout] 246 | |                 self.output.write_all(&input[..n])?;
[INFO] [stdout] 247 | |             }
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |             self.output.flush()?;
[INFO] [stdout] 251 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 252 | 
[INFO] [stdout] 253 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `telnet`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "97d411fa4d69eaf31ac966be6e4fed415cddfd93eaef39d187dc3f99ab315ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97d411fa4d69eaf31ac966be6e4fed415cddfd93eaef39d187dc3f99ab315ee6", kill_on_drop: false }`
[INFO] [stdout] 97d411fa4d69eaf31ac966be6e4fed415cddfd93eaef39d187dc3f99ab315ee6