[INFO] cloning repository https://github.com/GlenAShaffer/matrix [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GlenAShaffer/matrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlenAShaffer%2Fmatrix", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlenAShaffer%2Fmatrix'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6c01204d644c70cd01ec10d83daae4f5f22537d8 [INFO] checking GlenAShaffer/matrix against master#2aabf3ce0569dd7c8c2d2a27944850056dcf2566 for pr-156508-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlenAShaffer%2Fmatrix" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/GlenAShaffer/matrix [INFO] finished tweaking git repo https://github.com/GlenAShaffer/matrix [INFO] tweaked toml for git repo https://github.com/GlenAShaffer/matrix written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/GlenAShaffer/matrix on toolchain 2aabf3ce0569dd7c8c2d2a27944850056dcf2566 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2aabf3ce0569dd7c8c2d2a27944850056dcf2566" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/GlenAShaffer/matrix 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" "+2aabf3ce0569dd7c8c2d2a27944850056dcf2566" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+2aabf3ce0569dd7c8c2d2a27944850056dcf2566" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e2c80998d6b97e74a4ed320fce4bfb66a28b43d5d661a90f11cbf1ac15e2bb91 [INFO] running `Command { std: "docker" "start" "-a" "e2c80998d6b97e74a4ed320fce4bfb66a28b43d5d661a90f11cbf1ac15e2bb91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e2c80998d6b97e74a4ed320fce4bfb66a28b43d5d661a90f11cbf1ac15e2bb91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2c80998d6b97e74a4ed320fce4bfb66a28b43d5d661a90f11cbf1ac15e2bb91", kill_on_drop: false }` [INFO] [stdout] e2c80998d6b97e74a4ed320fce4bfb66a28b43d5d661a90f11cbf1ac15e2bb91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+2aabf3ce0569dd7c8c2d2a27944850056dcf2566" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c8ad58e298259620fefb9f06595b7cd31cb8fe02bcf0063b9e47678be9c42a09 [INFO] running `Command { std: "docker" "start" "-a" "c8ad58e298259620fefb9f06595b7cd31cb8fe02bcf0063b9e47678be9c42a09", kill_on_drop: false }` [INFO] [stderr] Checking matrix v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `return` value [INFO] [stdout] --> src/main.rs:79:23 [INFO] [stdout] | [INFO] [stdout] 79 | return(' ') [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 79 - return(' ') [INFO] [stdout] 79 + return ' ' [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `return` value [INFO] [stdout] --> src/main.rs:79:23 [INFO] [stdout] | [INFO] [stdout] 79 | return(' ') [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 79 - return(' ') [INFO] [stdout] 79 + return ' ' [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let mut lines: Vec = generate_lines(PRELOAD); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let mut lines: Vec = generate_lines(PRELOAD); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | for i in 0..WIDTH { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | for i in 0..WIDTH { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | for i in 0..num { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | for i in 0..num { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/main.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 58 | unsafe {line.push(rand_char());} [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary `unsafe` block [INFO] [stdout] --> src/main.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 58 | unsafe {line.push(rand_char());} [INFO] [stdout] | ^^^^^^ unnecessary `unsafe` block [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0133]: call to function `std::arch::x86_64::_rdrand16_step` with `#[target_feature]` is unsafe and requires unsafe block [INFO] [stdout] --> src/main.rs:69:20 [INFO] [stdout] | [INFO] [stdout] 69 | let _success = _rdrand16_step(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to function with `#[target_feature]` [INFO] [stdout] | [INFO] [stdout] = help: in order for the call to be safe, the context requires the following additional target feature: rdrand [INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default [INFO] [stdout] --> src/main.rs:67:1 [INFO] [stdout] | [INFO] [stdout] 67 | unsafe fn rand() -> u16{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0133]: call to function `std::arch::x86_64::_rdrand16_step` with `#[target_feature]` is unsafe and requires unsafe block [INFO] [stdout] --> src/main.rs:69:20 [INFO] [stdout] | [INFO] [stdout] 69 | let _success = _rdrand16_step(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to function with `#[target_feature]` [INFO] [stdout] | [INFO] [stdout] = help: in order for the call to be safe, the context requires the following additional target feature: rdrand [INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default [INFO] [stdout] --> src/main.rs:67:1 [INFO] [stdout] | [INFO] [stdout] 67 | unsafe fn rand() -> u16{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0133`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0133`. [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "c8ad58e298259620fefb9f06595b7cd31cb8fe02bcf0063b9e47678be9c42a09", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8ad58e298259620fefb9f06595b7cd31cb8fe02bcf0063b9e47678be9c42a09", kill_on_drop: false }` [INFO] [stdout] c8ad58e298259620fefb9f06595b7cd31cb8fe02bcf0063b9e47678be9c42a09