[INFO] cloning repository https://github.com/tfs007/rust_chat_client [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tfs007/rust_chat_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftfs007%2Frust_chat_client", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftfs007%2Frust_chat_client'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d82833829575d827af48ab31c82afe2dd0792e04 [INFO] checking tfs007/rust_chat_client against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftfs007%2Frust_chat_client" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] [stderr] Updating files: 51% (2538/4894) Updating files: 52% (2545/4894) Updating files: 53% (2594/4894) Updating files: 54% (2643/4894) Updating files: 55% (2692/4894) Updating files: 56% (2741/4894) Updating files: 57% (2790/4894) Updating files: 58% (2839/4894) Updating files: 59% (2888/4894) Updating files: 60% (2937/4894) Updating files: 60% (2938/4894) Updating files: 61% (2986/4894) Updating files: 62% (3035/4894) Updating files: 62% (3051/4894) Updating files: 63% (3084/4894) Updating files: 64% (3133/4894) Updating files: 65% (3182/4894) Updating files: 66% (3231/4894) Updating files: 67% (3279/4894) Updating files: 68% (3328/4894) Updating files: 69% (3377/4894) Updating files: 70% (3426/4894) Updating files: 71% (3475/4894) Updating files: 72% (3524/4894) Updating files: 73% (3573/4894) Updating files: 74% (3622/4894) Updating files: 75% (3671/4894) Updating files: 76% (3720/4894) Updating files: 77% (3769/4894) Updating files: 78% (3818/4894) Updating files: 79% (3867/4894) Updating files: 80% (3916/4894) Updating files: 81% (3965/4894) Updating files: 82% (4014/4894) Updating files: 82% (4052/4894) Updating files: 83% (4063/4894) Updating files: 84% (4111/4894) Updating files: 85% (4160/4894) Updating files: 86% (4209/4894) Updating files: 87% (4258/4894) Updating files: 88% (4307/4894) Updating files: 89% (4356/4894) Updating files: 90% (4405/4894) Updating files: 91% (4454/4894) Updating files: 92% (4503/4894) Updating files: 93% (4552/4894) Updating files: 94% (4601/4894) Updating files: 95% (4650/4894) Updating files: 96% (4699/4894) Updating files: 97% (4748/4894) Updating files: 98% (4797/4894) Updating files: 99% (4846/4894) Updating files: 100% (4894/4894) Updating files: 100% (4894/4894), done. [INFO] validating manifest of git repo https://github.com/tfs007/rust_chat_client on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tfs007/rust_chat_client [INFO] finished tweaking git repo https://github.com/tfs007/rust_chat_client [INFO] tweaked toml for git repo https://github.com/tfs007/rust_chat_client written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tfs007/rust_chat_client 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking tfs007/rust_chat_client against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftfs007%2Frust_chat_client" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] [stderr] Updating files: 51% (2539/4894) Updating files: 52% (2545/4894) Updating files: 53% (2594/4894) Updating files: 54% (2643/4894) Updating files: 55% (2692/4894) Updating files: 56% (2741/4894) Updating files: 57% (2790/4894) Updating files: 58% (2839/4894) Updating files: 59% (2888/4894) Updating files: 60% (2937/4894) Updating files: 60% (2938/4894) Updating files: 61% (2986/4894) Updating files: 62% (3035/4894) Updating files: 62% (3055/4894) Updating files: 63% (3084/4894) Updating files: 64% (3133/4894) Updating files: 65% (3182/4894) Updating files: 66% (3231/4894) Updating files: 67% (3279/4894) Updating files: 68% (3328/4894) Updating files: 69% (3377/4894) Updating files: 70% (3426/4894) Updating files: 71% (3475/4894) Updating files: 72% (3524/4894) Updating files: 73% (3573/4894) Updating files: 74% (3622/4894) Updating files: 75% (3671/4894) Updating files: 76% (3720/4894) Updating files: 77% (3769/4894) Updating files: 78% (3818/4894) Updating files: 79% (3867/4894) Updating files: 80% (3916/4894) Updating files: 81% (3965/4894) Updating files: 82% (4014/4894) Updating files: 83% (4063/4894) Updating files: 84% (4111/4894) Updating files: 84% (4116/4894) Updating files: 85% (4160/4894) Updating files: 86% (4209/4894) Updating files: 87% (4258/4894) Updating files: 88% (4307/4894) Updating files: 89% (4356/4894) Updating files: 90% (4405/4894) Updating files: 91% (4454/4894) Updating files: 92% (4503/4894) Updating files: 93% (4552/4894) Updating files: 94% (4601/4894) Updating files: 95% (4650/4894) Updating files: 96% (4699/4894) Updating files: 97% (4748/4894) Updating files: 98% (4797/4894) Updating files: 99% (4846/4894) Updating files: 100% (4894/4894) Updating files: 100% (4894/4894), done. [INFO] validating manifest of git repo https://github.com/tfs007/rust_chat_client on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tfs007/rust_chat_client [INFO] finished tweaking git repo https://github.com/tfs007/rust_chat_client [INFO] tweaked toml for git repo https://github.com/tfs007/rust_chat_client written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/tfs007/rust_chat_client 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cc3a8ffe61a44326ea0a9439d98149d05e5fd4aee7f16611a27af2476ec42859 [INFO] running `Command { std: "docker" "start" "-a" "cc3a8ffe61a44326ea0a9439d98149d05e5fd4aee7f16611a27af2476ec42859", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cc3a8ffe61a44326ea0a9439d98149d05e5fd4aee7f16611a27af2476ec42859", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc3a8ffe61a44326ea0a9439d98149d05e5fd4aee7f16611a27af2476ec42859", kill_on_drop: false }` [INFO] [stdout] cc3a8ffe61a44326ea0a9439d98149d05e5fd4aee7f16611a27af2476ec42859 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] debb7478c8e0d2f7bee5ff53f98817abbbc7b568c7188c85d7710499febd2180 [INFO] running `Command { std: "docker" "start" "-a" "debb7478c8e0d2f7bee5ff53f98817abbbc7b568c7188c85d7710499febd2180", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling cc v1.0.101 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Compiling vcpkg v0.2.15 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking spin v0.9.8 [INFO] [stderr] Checking untrusted v0.9.0 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking tinyvec_macros v0.1.1 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Checking tinyvec v1.6.1 [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Checking untrusted v0.7.1 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Compiling rustls v0.20.9 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Compiling httparse v1.9.4 [INFO] [stderr] Compiling openssl v0.10.64 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Compiling thiserror v1.0.61 [INFO] [stderr] Checking percent-encoding v2.3.1 [INFO] [stderr] Checking openssl-probe v0.1.5 [INFO] [stderr] Checking cpufeatures v0.2.12 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking form_urlencoded v1.2.1 [INFO] [stderr] Checking base64 v0.21.7 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Compiling native-tls v0.2.12 [INFO] [stderr] Checking sha-1 v0.10.1 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking utf-8 v0.7.6 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Checking sha2 v0.10.8 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking rustls-pemfile v1.0.4 [INFO] [stderr] Checking rustls-native-certs v0.6.3 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling ring v0.17.8 [INFO] [stderr] Compiling openssl-sys v0.9.102 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Compiling syn v2.0.68 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking url v2.5.2 [INFO] [stderr] Compiling tokio-macros v2.3.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling thiserror-impl v1.0.61 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking tokio v1.38.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking webpki v0.22.4 [INFO] [stderr] Checking sct v0.7.1 [INFO] [stderr] Checking tungstenite v0.17.3 [INFO] [stderr] Checking tokio-rustls v0.23.4 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking tokio-tungstenite v0.17.2 [INFO] [stderr] Checking chat-app v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `tokio_tungstenite::WebSocketStream` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use tokio_tungstenite::WebSocketStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::net::TcpStream` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use tokio::net::TcpStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc` and `Mutex` [INFO] [stdout] --> src/main.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::sync::mpsc` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use tokio::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio_rustls::TlsStream` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use tokio_rustls::TlsStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rustls::ClientConnection` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use rustls::ClientConnection; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio_tungstenite::WebSocketStream` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use tokio_tungstenite::WebSocketStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::net::TcpStream` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use tokio::net::TcpStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc` and `Mutex` [INFO] [stdout] --> src/main.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::sync::mpsc` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use tokio::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio_rustls::TlsStream` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use tokio_rustls::TlsStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rustls::ClientConnection` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use rustls::ClientConnection; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `hash_pwd` is never read [INFO] [stdout] --> src/main.rs:86:13 [INFO] [stdout] | [INFO] [stdout] 86 | let mut hash_pwd = String::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `hash_pwd` is never read [INFO] [stdout] --> src/main.rs:86:13 [INFO] [stdout] | [INFO] [stdout] 86 | let mut hash_pwd = String::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:83:5 [INFO] [stdout] | [INFO] [stdout] 83 | print_instructions(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 83 | let _ = print_instructions(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:83:5 [INFO] [stdout] | [INFO] [stdout] 83 | print_instructions(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 83 | let _ = print_instructions(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:110:17 [INFO] [stdout] | [INFO] [stdout] 110 | print_instructions(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 110 | let _ = print_instructions(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:142:13 [INFO] [stdout] | [INFO] [stdout] 142 | print_instructions(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 142 | let _ = print_instructions(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:110:17 [INFO] [stdout] | [INFO] [stdout] 110 | print_instructions(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 110 | let _ = print_instructions(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:142:13 [INFO] [stdout] | [INFO] [stdout] 142 | print_instructions(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 142 | let _ = print_instructions(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.94s [INFO] running `Command { std: "docker" "inspect" "debb7478c8e0d2f7bee5ff53f98817abbbc7b568c7188c85d7710499febd2180", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "debb7478c8e0d2f7bee5ff53f98817abbbc7b568c7188c85d7710499febd2180", kill_on_drop: false }` [INFO] [stdout] debb7478c8e0d2f7bee5ff53f98817abbbc7b568c7188c85d7710499febd2180