[INFO] updating cached repository https://github.com/takuma-saito/rust_dns [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 67768aac005dc55cc63c83bd90d2afd23cf44e02 [INFO] checking takuma-saito/rust_dns against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakuma-saito%2Frust_dns" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/takuma-saito/rust_dns on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/takuma-saito/rust_dns [INFO] finished tweaking git repo https://github.com/takuma-saito/rust_dns [INFO] tweaked toml for git repo https://github.com/takuma-saito/rust_dns written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/takuma-saito/rust_dns already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 44388908e469b66b4e3da95ae2d4c71bc3e04da9ef95a0d8129f700e8bd07110 [INFO] running `"docker" "start" "-a" "44388908e469b66b4e3da95ae2d4c71bc3e04da9ef95a0d8129f700e8bd07110"` [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Checking tokio-sync v0.2.0-alpha.6 [INFO] [stderr] Checking futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking futures-preview v0.3.0-alpha.19 [INFO] [stderr] Checking futures-timer v0.3.0 [INFO] [stderr] Compiling pin-project-internal v0.4.2 [INFO] [stderr] Compiling tracing-attributes v0.1.4 [INFO] [stderr] Compiling tokio-macros v0.2.0-alpha.6 [INFO] [stderr] Checking tracing v0.1.9 [INFO] [stderr] Checking pin-project v0.4.2 [INFO] [stderr] Checking tokio-io v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-executor v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-codec v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-timer v0.3.0-alpha.6 [INFO] [stderr] Checking tokio-fs v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-net v0.2.0-alpha.6 [INFO] [stderr] Checking tokio v0.2.0-alpha.6 [INFO] [stderr] Checking rust_dns v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `futures::executor::block_on` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use futures::executor::block_on; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:60:10 [INFO] [stderr] | [INFO] [stderr] 60 | if (count > 255) { panic!("name length > 255"); } [INFO] [stderr] | ^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::slice::::connect': renamed to join [INFO] [stderr] --> src/main.rs:142:6 [INFO] [stderr] | [INFO] [stderr] 142 | .connect("."); [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:104:19 [INFO] [stderr] | [INFO] [stderr] 104 | async fn dispatch(i: usize, requests: &[(usize, usize)]) -> Vec { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:78:9 [INFO] [stderr] | [INFO] [stderr] 78 | let mut ptr = (self as *const Self) as *const u16; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:137:7 [INFO] [stderr] | [INFO] [stderr] 137 | let mut ipaddr = data[(len-4)..len] [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `hex` [INFO] [stderr] --> src/main.rs:92:3 [INFO] [stderr] | [INFO] [stderr] 92 | fn hex(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `job` [INFO] [stderr] --> src/main.rs:97:10 [INFO] [stderr] | [INFO] [stderr] 97 | async fn job((i, u): &(usize, usize)) -> usize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dispatch` [INFO] [stderr] --> src/main.rs:104:10 [INFO] [stderr] | [INFO] [stderr] 104 | async fn dispatch(i: usize, requests: &[(usize, usize)]) -> Vec { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/main.rs:112:10 [INFO] [stderr] | [INFO] [stderr] 112 | async fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:99:3 [INFO] [stderr] | [INFO] [stderr] 99 | Delay::new(Duration::from_millis(((*u) * 100) as u64)).await; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable `Pool` should have a snake case name [INFO] [stderr] --> src/main.rs:118:7 [INFO] [stderr] | [INFO] [stderr] 118 | let Pool = 30; [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `pool` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::executor::block_on` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use futures::executor::block_on; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:60:10 [INFO] [stderr] | [INFO] [stderr] 60 | if (count > 255) { panic!("name length > 255"); } [INFO] [stderr] | ^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::slice::::connect': renamed to join [INFO] [stderr] --> src/main.rs:142:6 [INFO] [stderr] | [INFO] [stderr] 142 | .connect("."); [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:104:19 [INFO] [stderr] | [INFO] [stderr] 104 | async fn dispatch(i: usize, requests: &[(usize, usize)]) -> Vec { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:78:9 [INFO] [stderr] | [INFO] [stderr] 78 | let mut ptr = (self as *const Self) as *const u16; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:137:7 [INFO] [stderr] | [INFO] [stderr] 137 | let mut ipaddr = data[(len-4)..len] [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `hex` [INFO] [stderr] --> src/main.rs:92:3 [INFO] [stderr] | [INFO] [stderr] 92 | fn hex(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `job` [INFO] [stderr] --> src/main.rs:97:10 [INFO] [stderr] | [INFO] [stderr] 97 | async fn job((i, u): &(usize, usize)) -> usize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dispatch` [INFO] [stderr] --> src/main.rs:104:10 [INFO] [stderr] | [INFO] [stderr] 104 | async fn dispatch(i: usize, requests: &[(usize, usize)]) -> Vec { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/main.rs:112:10 [INFO] [stderr] | [INFO] [stderr] 112 | async fn run() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:99:3 [INFO] [stderr] | [INFO] [stderr] 99 | Delay::new(Duration::from_millis(((*u) * 100) as u64)).await; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable `Pool` should have a snake case name [INFO] [stderr] --> src/main.rs:118:7 [INFO] [stderr] | [INFO] [stderr] 118 | let Pool = 30; [INFO] [stderr] | ^^^^ help: convert the identifier to snake case: `pool` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 49.50s [INFO] running `"docker" "inspect" "44388908e469b66b4e3da95ae2d4c71bc3e04da9ef95a0d8129f700e8bd07110"` [INFO] running `"docker" "rm" "-f" "44388908e469b66b4e3da95ae2d4c71bc3e04da9ef95a0d8129f700e8bd07110"` [INFO] [stdout] 44388908e469b66b4e3da95ae2d4c71bc3e04da9ef95a0d8129f700e8bd07110