[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#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgfrans%2Fsnaek" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gfrans/snaek on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/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: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7c1c318e0c6d230253a8cddca60de7f615f829527054f3869ea75d3d34c6411b [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" "7c1c318e0c6d230253a8cddca60de7f615f829527054f3869ea75d3d34c6411b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7c1c318e0c6d230253a8cddca60de7f615f829527054f3869ea75d3d34c6411b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c1c318e0c6d230253a8cddca60de7f615f829527054f3869ea75d3d34c6411b", kill_on_drop: false }` [INFO] [stdout] 7c1c318e0c6d230253a8cddca60de7f615f829527054f3869ea75d3d34c6411b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] e8c60fc95ccc76f95bc8354879379017ed3be039c5a71e0c543ad57f8d767248 [INFO] running `Command { std: "docker" "start" "-a" "e8c60fc95ccc76f95bc8354879379017ed3be039c5a71e0c543ad57f8d767248", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.56 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Checking getrandom v0.2.0 [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 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 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: unreachable statement [INFO] [stdout] --> src/main.rs:443:3 [INFO] [stdout] | [INFO] [stdout] 421 | 'client: loop { [INFO] [stdout] | _________- [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: 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: 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: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: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: unreachable statement [INFO] [stdout] --> src/main.rs:443:3 [INFO] [stdout] | [INFO] [stdout] 421 | 'client: loop { [INFO] [stdout] | _________- [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: 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 `std::result::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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [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: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: unused `std::result::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: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 37.74s [INFO] running `Command { std: "docker" "inspect" "e8c60fc95ccc76f95bc8354879379017ed3be039c5a71e0c543ad57f8d767248", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8c60fc95ccc76f95bc8354879379017ed3be039c5a71e0c543ad57f8d767248", kill_on_drop: false }` [INFO] [stdout] e8c60fc95ccc76f95bc8354879379017ed3be039c5a71e0c543ad57f8d767248