[INFO] cloning repository https://github.com/gfrans/snaek [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gfrans/snaek" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgfrans%2Fsnaek", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgfrans%2Fsnaek'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] efe7e438a217cfc4e6ed2745c6e0a806d3728dfb [INFO] checking gfrans/snaek against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgfrans%2Fsnaek" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gfrans/snaek on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gfrans/snaek [INFO] finished tweaking git repo https://github.com/gfrans/snaek [INFO] tweaked toml for git repo https://github.com/gfrans/snaek written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/gfrans/snaek 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 43d6f4c8c68b96ccbbd3d76d94bad4c851e6eb3f9c07d8c1e3708e04f1115b81 [INFO] running `Command { std: "docker" "start" "-a" "43d6f4c8c68b96ccbbd3d76d94bad4c851e6eb3f9c07d8c1e3708e04f1115b81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "43d6f4c8c68b96ccbbd3d76d94bad4c851e6eb3f9c07d8c1e3708e04f1115b81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43d6f4c8c68b96ccbbd3d76d94bad4c851e6eb3f9c07d8c1e3708e04f1115b81", kill_on_drop: false }` [INFO] [stdout] 43d6f4c8c68b96ccbbd3d76d94bad4c851e6eb3f9c07d8c1e3708e04f1115b81 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3a87c03986204f384c4761566c4dab2c57ea6540464a349823a211bd56d2972a [INFO] running `Command { std: "docker" "start" "-a" "3a87c03986204f384c4761566c4dab2c57ea6540464a349823a211bd56d2972a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling syn v1.0.56 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termion v1.5.5 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking rand_core v0.6.0 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.0 [INFO] [stderr] Checking snaek v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Stdin`, `Stdout` [INFO] [stdout] --> src/main.rs:8:29 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io::{self, stdout, Stdout, stdin, Stdin, Read, Write}; [INFO] [stdout] | ^^^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `sleep` [INFO] [stdout] --> src/main.rs:11:25 [INFO] [stdout] | [INFO] [stdout] 11 | use std::thread::{self, sleep}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/main.rs:12:17 [INFO] [stdout] | [INFO] [stdout] 12 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ToSocketAddrs` [INFO] [stdout] --> src/main.rs:17:28 [INFO] [stdout] | [INFO] [stdout] 17 | use std::net::{ UdpSocket, ToSocketAddrs, SocketAddr }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `FromStr` [INFO] [stdout] --> src/main.rs:19:23 [INFO] [stdout] | [INFO] [stdout] 19 | use std::str::{ self, FromStr }; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/main.rs:148:5 [INFO] [stdout] | [INFO] [stdout] 148 | 'snakes: for (_, snaek) in players.iter_mut() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Stdin`, `Stdout` [INFO] [stdout] --> src/main.rs:8:29 [INFO] [stdout] | [INFO] [stdout] 8 | use std::io::{self, stdout, Stdout, stdin, Stdin, Read, Write}; [INFO] [stdout] | ^^^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/main.rs:421:3 [INFO] [stdout] | [INFO] [stdout] 421 | 'client: loop { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/main.rs:466:5 [INFO] [stdout] | [INFO] [stdout] 466 | 'game: loop { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `sleep` [INFO] [stdout] --> src/main.rs:11:25 [INFO] [stdout] | [INFO] [stdout] 11 | use std::thread::{self, sleep}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/main.rs:12:17 [INFO] [stdout] | [INFO] [stdout] 12 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ToSocketAddrs` [INFO] [stdout] --> src/main.rs:17:28 [INFO] [stdout] | [INFO] [stdout] 17 | use std::net::{ UdpSocket, ToSocketAddrs, SocketAddr }; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `FromStr` [INFO] [stdout] --> src/main.rs:19:23 [INFO] [stdout] | [INFO] [stdout] 19 | use std::str::{ self, FromStr }; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/main.rs:148:5 [INFO] [stdout] | [INFO] [stdout] 148 | 'snakes: for (_, snaek) in players.iter_mut() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/main.rs:421:3 [INFO] [stdout] | [INFO] [stdout] 421 | 'client: loop { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/main.rs:466:5 [INFO] [stdout] | [INFO] [stdout] 466 | 'game: loop { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `destructuring_assignment` has been stable since 1.59.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(destructuring_assignment)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(or_patterns)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `bindings_after_at` has been stable since 1.56.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | #![feature(bindings_after_at)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `duration_saturating_ops` has been stable since 1.53.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(duration_saturating_ops)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `destructuring_assignment` has been stable since 1.59.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(destructuring_assignment)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(or_patterns)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `bindings_after_at` has been stable since 1.56.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | #![feature(bindings_after_at)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `duration_saturating_ops` has been stable since 1.53.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(duration_saturating_ops)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:443:3 [INFO] [stdout] | [INFO] [stdout] 421 | / 'client: loop { [INFO] [stdout] 422 | | let start = Instant::now(); [INFO] [stdout] 423 | | [INFO] [stdout] 424 | | // deserialize server packet [INFO] [stdout] ... | [INFO] [stdout] 440 | | println!("loop time: {:?}\r", start.elapsed()); [INFO] [stdout] 441 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 442 | [INFO] [stdout] 443 | exit(0); [INFO] [stdout] | ^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:443:3 [INFO] [stdout] | [INFO] [stdout] 421 | / 'client: loop { [INFO] [stdout] 422 | | let start = Instant::now(); [INFO] [stdout] 423 | | [INFO] [stdout] 424 | | // deserialize server packet [INFO] [stdout] ... | [INFO] [stdout] 440 | | println!("loop time: {:?}\r", start.elapsed()); [INFO] [stdout] 441 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 442 | [INFO] [stdout] 443 | exit(0); [INFO] [stdout] | ^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:208:13 [INFO] [stdout] | [INFO] [stdout] 208 | let mut serialized = serde_json::to_string(&packet).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/main.rs:208:13 [INFO] [stdout] | [INFO] [stdout] 208 | let mut serialized = serde_json::to_string(&packet).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/main.rs:324:9 [INFO] [stdout] | [INFO] [stdout] 324 | let mut serialized = serde_json::to_string(&Packet::State(v.to_vec())).unwrap(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:324:9 [INFO] [stdout] | [INFO] [stdout] 324 | let mut serialized = serde_json::to_string(&Packet::State(v.to_vec())).unwrap(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `handler` [INFO] [stdout] --> src/main.rs:416:13 [INFO] [stdout] | [INFO] [stdout] 416 | let handler = thread::spawn(move || { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `handler` [INFO] [stdout] --> src/main.rs:416:13 [INFO] [stdout] | [INFO] [stdout] 416 | let handler = thread::spawn(move || { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:371:9 [INFO] [stdout] | [INFO] [stdout] 371 | let mut port = args.value_of("port").unwrap().to_string(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:459:9 [INFO] [stdout] | [INFO] [stdout] 459 | let mut srv_sock = UdpSocket::bind(address).expect("couldn't bind server"); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:371:9 [INFO] [stdout] | [INFO] [stdout] 371 | let mut port = args.value_of("port").unwrap().to_string(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:459:9 [INFO] [stdout] | [INFO] [stdout] 459 | let mut srv_sock = UdpSocket::bind(address).expect("couldn't bind server"); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Snaek { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 26 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Snaek` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | struct Snaek { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 26 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Snaek` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:330:3 [INFO] [stdout] | [INFO] [stdout] 330 | s.send_to(serialized.as_bytes(), address); [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] 330 | let _ = s.send_to(serialized.as_bytes(), address); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:330:3 [INFO] [stdout] | [INFO] [stdout] 330 | s.send_to(serialized.as_bytes(), address); [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] 330 | let _ = s.send_to(serialized.as_bytes(), address); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:337:5 [INFO] [stdout] | [INFO] [stdout] 337 | write!(stdout(), "{}", clear::All); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:337:5 [INFO] [stdout] | [INFO] [stdout] 337 | write!(stdout(), "{}", clear::All); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.96s [INFO] running `Command { std: "docker" "inspect" "3a87c03986204f384c4761566c4dab2c57ea6540464a349823a211bd56d2972a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a87c03986204f384c4761566c4dab2c57ea6540464a349823a211bd56d2972a", kill_on_drop: false }` [INFO] [stdout] 3a87c03986204f384c4761566c4dab2c57ea6540464a349823a211bd56d2972a [INFO] checking gfrans/snaek against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgfrans%2Fsnaek" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gfrans/snaek on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gfrans/snaek [INFO] finished tweaking git repo https://github.com/gfrans/snaek [INFO] tweaked toml for git repo https://github.com/gfrans/snaek written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/gfrans/snaek 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fb2932334a4c6b393d1c2070dc6ba6b3901a62ea2d51f0ab5f248efb2aa0d8e9 [INFO] running `Command { std: "docker" "start" "-a" "fb2932334a4c6b393d1c2070dc6ba6b3901a62ea2d51f0ab5f248efb2aa0d8e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb2932334a4c6b393d1c2070dc6ba6b3901a62ea2d51f0ab5f248efb2aa0d8e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb2932334a4c6b393d1c2070dc6ba6b3901a62ea2d51f0ab5f248efb2aa0d8e9", kill_on_drop: false }` [INFO] [stdout] fb2932334a4c6b393d1c2070dc6ba6b3901a62ea2d51f0ab5f248efb2aa0d8e9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ed6e58ee9f0663198f565a3476fcdff0238d79b10ef9cfe0372a551e5100ab8 [INFO] running `Command { std: "docker" "start" "-a" "7ed6e58ee9f0663198f565a3476fcdff0238d79b10ef9cfe0372a551e5100ab8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling syn v1.0.56 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termion v1.5.5 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking rand_core v0.6.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/termion-1.5.5/src/input.rs:19:13 [INFO] [stdout] | [INFO] [stdout] 19 | / match self.iter.next() { [INFO] [stdout] 20 | | Some(Ok(Event::Key(k))) => return Some(Ok(k)), [INFO] [stdout] 21 | | Some(Ok(_)) => continue, [INFO] [stdout] 22 | | Some(Err(e)) => return Some(Err(e)), [INFO] [stdout] 23 | | None => return None, [INFO] [stdout] 24 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `termion` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "7ed6e58ee9f0663198f565a3476fcdff0238d79b10ef9cfe0372a551e5100ab8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ed6e58ee9f0663198f565a3476fcdff0238d79b10ef9cfe0372a551e5100ab8", kill_on_drop: false }` [INFO] [stdout] 7ed6e58ee9f0663198f565a3476fcdff0238d79b10ef9cfe0372a551e5100ab8