[INFO] cloning repository https://github.com/ayourtch/ts-netops-simple-telnet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ayourtch/ts-netops-simple-telnet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayourtch%2Fts-netops-simple-telnet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayourtch%2Fts-netops-simple-telnet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6925fa2d5f7f7466bf3c6783dd1ac82abfce16a6
[INFO] checking ayourtch/ts-netops-simple-telnet against master#b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd for pr-155499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayourtch%2Fts-netops-simple-telnet" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ayourtch/ts-netops-simple-telnet
[INFO] finished tweaking git repo https://github.com/ayourtch/ts-netops-simple-telnet
[INFO] tweaked toml for git repo https://github.com/ayourtch/ts-netops-simple-telnet written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ayourtch/ts-netops-simple-telnet on toolchain b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ayourtch/ts-netops-simple-telnet 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" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.3.3
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded telnet v0.1.4
[INFO] [stderr]   Downloaded hermit-abi v0.1.13
[INFO] [stderr]   Downloaded humantime v1.3.0
[INFO] [stderr]   Downloaded termcolor v1.1.0
[INFO] [stderr]   Downloaded env_logger v0.7.1
[INFO] [stderr]   Downloaded log v0.4.8
[INFO] [stderr]   Downloaded regex v1.3.7
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded libc v0.2.70
[INFO] [stderr]   Downloaded winapi v0.3.8
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c64ad244a833c6105c10423672c7b67c85504167235ebd41f306c271360dfce7
[INFO] running `Command { std: "docker" "start" "-a" "c64ad244a833c6105c10423672c7b67c85504167235ebd41f306c271360dfce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c64ad244a833c6105c10423672c7b67c85504167235ebd41f306c271360dfce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c64ad244a833c6105c10423672c7b67c85504167235ebd41f306c271360dfce7", kill_on_drop: false }`
[INFO] [stdout] c64ad244a833c6105c10423672c7b67c85504167235ebd41f306c271360dfce7
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b2f1ccf524a3a4cf9c34545167cc23b659cf1cbd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ea624099c2ce6c89e4b320d2b51df5a827d4f30d4d8a93f8563fb4bbbc54a58
[INFO] running `Command { std: "docker" "start" "-a" "9ea624099c2ce6c89e4b320d2b51df5a827d4f30d4d8a93f8563fb4bbbc54a58", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking telnet v0.1.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking ts-netops-simple-telnet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `author_failed_match`
[INFO] [stdout]   --> src/main.rs:62:37
[INFO] [stdout]    |
[INFO] [stdout] 62 |                         if let Some(author_failed_match) = author_failed_regex.find(&data_buffer) {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_author_failed_match`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `login_state` is never read
[INFO] [stdout]   --> src/main.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 | ...                   login_state = LoginState::Established;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 78 | ...                   login_state = LoginState::Initial;
[INFO] [stdout]    |                       --------------------------------- `login_state` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `login_state` is never read
[INFO] [stdout]    --> src/main.rs:108:29
[INFO] [stdout]     |
[INFO] [stdout] 108 |                             login_state = LoginState::Established;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 153 |     login_state = LoginState::ReadingOutput;
[INFO] [stdout]     |     --------------------------------------- `login_state` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `login_state` is never read
[INFO] [stdout]    --> src/main.rs:169:29
[INFO] [stdout]     |
[INFO] [stdout] 169 |                             login_state = LoginState::Established;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 192 |         login_state = LoginState::ReadingOutput;
[INFO] [stdout]     |         --------------------------------------- `login_state` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `login_state` is never read
[INFO] [stdout]    --> src/main.rs:212:33
[INFO] [stdout]     |
[INFO] [stdout] 117 | ...                   login_state = LoginState::Initial;
[INFO] [stdout]     |                       --------------------------------- `login_state` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 212 | ...                       login_state = LoginState::Established;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]    --> src/main.rs:193:26
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut result = "".to_string();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 210 |                                 result = command_output.to_string();
[INFO] [stdout]     |                                 ------ `result` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EstablishedNonPriv` is never constructed
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum LoginState {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     EstablishedNonPriv,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoginState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `author_failed_match`
[INFO] [stdout]   --> src/main.rs:62:37
[INFO] [stdout]    |
[INFO] [stdout] 62 |                         if let Some(author_failed_match) = author_failed_regex.find(&data_buffer) {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_author_failed_match`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `login_state` is never read
[INFO] [stdout]   --> src/main.rs:69:29
[INFO] [stdout]    |
[INFO] [stdout] 69 | ...                   login_state = LoginState::Established;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 78 | ...                   login_state = LoginState::Initial;
[INFO] [stdout]    |                       --------------------------------- `login_state` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `login_state` is never read
[INFO] [stdout]    --> src/main.rs:108:29
[INFO] [stdout]     |
[INFO] [stdout] 108 |                             login_state = LoginState::Established;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 153 |     login_state = LoginState::ReadingOutput;
[INFO] [stdout]     |     --------------------------------------- `login_state` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `login_state` is never read
[INFO] [stdout]    --> src/main.rs:169:29
[INFO] [stdout]     |
[INFO] [stdout] 169 |                             login_state = LoginState::Established;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 192 |         login_state = LoginState::ReadingOutput;
[INFO] [stdout]     |         --------------------------------------- `login_state` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `login_state` is never read
[INFO] [stdout]    --> src/main.rs:212:33
[INFO] [stdout]     |
[INFO] [stdout] 117 | ...                   login_state = LoginState::Initial;
[INFO] [stdout]     |                       --------------------------------- `login_state` is overwritten here before the previous value is read
[INFO] [stdout] ...
[INFO] [stdout] 212 | ...                       login_state = LoginState::Established;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `result` is never read
[INFO] [stdout]    --> src/main.rs:193:26
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut result = "".to_string();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 210 |                                 result = command_output.to_string();
[INFO] [stdout]     |                                 ------ `result` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EstablishedNonPriv` is never constructed
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum LoginState {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     EstablishedNonPriv,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoginState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "9ea624099c2ce6c89e4b320d2b51df5a827d4f30d4d8a93f8563fb4bbbc54a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ea624099c2ce6c89e4b320d2b51df5a827d4f30d4d8a93f8563fb4bbbc54a58", kill_on_drop: false }`
[INFO] [stdout] 9ea624099c2ce6c89e4b320d2b51df5a827d4f30d4d8a93f8563fb4bbbc54a58
