[INFO] cloning repository https://github.com/mlang/jackdots [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mlang/jackdots" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmlang%2Fjackdots", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmlang%2Fjackdots'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 302a6e1a72263de1f09cbcf2fa2b1f53244bb742 [INFO] testing mlang/jackdots against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmlang%2Fjackdots" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mlang/jackdots on toolchain b70888601af92f6cdc0364abab3446e418b91d36 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mlang/jackdots [INFO] finished tweaking git repo https://github.com/mlang/jackdots [INFO] tweaked toml for git repo https://github.com/mlang/jackdots written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/mlang/jackdots already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 86c2c808a2b952d9934ee336e3d40bbcd4433ad24f77272962d1d706a68f9362 [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" "86c2c808a2b952d9934ee336e3d40bbcd4433ad24f77272962d1d706a68f9362", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "86c2c808a2b952d9934ee336e3d40bbcd4433ad24f77272962d1d706a68f9362", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "86c2c808a2b952d9934ee336e3d40bbcd4433ad24f77272962d1d706a68f9362", kill_on_drop: false }` [INFO] [stdout] 86c2c808a2b952d9934ee336e3d40bbcd4433ad24f77272962d1d706a68f9362 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--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] 2a3aa58505c49f01afa2c591dce7fd1c43ea8f25bdb1f2f75165fead93f66fc3 [INFO] running `Command { std: "docker" "start" "-a" "2a3aa58505c49f01afa2c591dce7fd1c43ea8f25bdb1f2f75165fead93f66fc3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling libloading v0.4.3 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling strength_reduce v0.2.3 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling transpose v0.1.0 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ringbuf v0.2.1 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling rustfft v3.0.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling jack-sys v0.2.0 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling jack v0.6.2 [INFO] [stderr] Compiling jackdots v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `cells` [INFO] [stdout] --> src/main.rs:90:16 [INFO] [stdout] | [INFO] [stdout] 90 | pub fn new(cells: usize) -> Self { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cells` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Spectrum` [INFO] [stdout] --> src/main.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | PeakMeter, Spectrum [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [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:36:13 [INFO] [stdout] | [INFO] [stdout] 36 | client.connect_ports(&port, &in_1); [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 `Result` that must be used [INFO] [stdout] --> src/main.rs:125:13 [INFO] [stdout] | [INFO] [stdout] 125 | io::stdout().flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 24.90s [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2a3aa58505c49f01afa2c591dce7fd1c43ea8f25bdb1f2f75165fead93f66fc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a3aa58505c49f01afa2c591dce7fd1c43ea8f25bdb1f2f75165fead93f66fc3", kill_on_drop: false }` [INFO] [stdout] 2a3aa58505c49f01afa2c591dce7fd1c43ea8f25bdb1f2f75165fead93f66fc3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 521b47ceaf2ce1233431f215b5045ea920e214d1b86d2a2c75877e0e624390bd [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" "521b47ceaf2ce1233431f215b5045ea920e214d1b86d2a2c75877e0e624390bd", kill_on_drop: false }` [INFO] [stderr] Compiling jackdots v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rustfft::num_traits::Zero` [INFO] [stdout] --> examples/spectrum.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rustfft::num_traits::Zero; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::Ordering::Equal` [INFO] [stdout] --> examples/spectrum.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::cmp::Ordering::Equal; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::min` [INFO] [stdout] --> examples/spectrum.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::cmp::min; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `FFT` [INFO] [stdout] --> examples/spectrum.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | use rustfft::{FFT, FFTplanner}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cells` [INFO] [stdout] --> src/main.rs:90:16 [INFO] [stdout] | [INFO] [stdout] 90 | pub fn new(cells: usize) -> Self { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cells` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `iec_scale` [INFO] [stdout] --> examples/spectrum.rs:78:4 [INFO] [stdout] | [INFO] [stdout] 78 | fn iec_scale(decibel: f32, width: usize) -> usize { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> examples/spectrum.rs:64:21 [INFO] [stdout] | [INFO] [stdout] 64 | io::stdout().flush(); [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: variant is never constructed: `Spectrum` [INFO] [stdout] --> src/main.rs:9:16 [INFO] [stdout] | [INFO] [stdout] 9 | PeakMeter, Spectrum [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [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:36:13 [INFO] [stdout] | [INFO] [stdout] 36 | client.connect_ports(&port, &in_1); [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 `Result` that must be used [INFO] [stdout] --> src/main.rs:125:13 [INFO] [stdout] | [INFO] [stdout] 125 | io::stdout().flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.83s [INFO] running `Command { std: "docker" "inspect" "521b47ceaf2ce1233431f215b5045ea920e214d1b86d2a2c75877e0e624390bd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "521b47ceaf2ce1233431f215b5045ea920e214d1b86d2a2c75877e0e624390bd", kill_on_drop: false }` [INFO] [stdout] 521b47ceaf2ce1233431f215b5045ea920e214d1b86d2a2c75877e0e624390bd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 12f591a735fddbe73e80242f4da91f82b3838832edd3f298fa2c93a543a57724 [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" "12f591a735fddbe73e80242f4da91f82b3838832edd3f298fa2c93a543a57724", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `cells` [INFO] [stderr] --> src/main.rs:90:16 [INFO] [stderr] | [INFO] [stderr] 90 | pub fn new(cells: usize) -> Self { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_cells` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Spectrum` [INFO] [stderr] --> src/main.rs:9:16 [INFO] [stderr] | [INFO] [stderr] 9 | PeakMeter, Spectrum [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:36:13 [INFO] [stderr] | [INFO] [stderr] 36 | client.connect_ports(&port, &in_1); [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: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:125:13 [INFO] [stderr] | [INFO] [stderr] 125 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused import: `rustfft::num_traits::Zero` [INFO] [stderr] --> examples/spectrum.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use rustfft::num_traits::Zero; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::Ordering::Equal` [INFO] [stderr] --> examples/spectrum.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::cmp::Ordering::Equal; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cmp::min` [INFO] [stderr] --> examples/spectrum.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::cmp::min; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `FFT` [INFO] [stderr] --> examples/spectrum.rs:3:15 [INFO] [stderr] | [INFO] [stderr] 3 | use rustfft::{FFT, FFTplanner}; [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `iec_scale` [INFO] [stderr] --> examples/spectrum.rs:78:4 [INFO] [stderr] | [INFO] [stderr] 78 | fn iec_scale(decibel: f32, width: usize) -> usize { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> examples/spectrum.rs:64:21 [INFO] [stderr] | [INFO] [stderr] 64 | io::stdout().flush(); [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: `jackdots` (bin "jackdots" test) generated 4 warnings [INFO] [stderr] warning: `jackdots` (example "spectrum") generated 6 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/jackdots-bca37037d1354fb4) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "12f591a735fddbe73e80242f4da91f82b3838832edd3f298fa2c93a543a57724", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12f591a735fddbe73e80242f4da91f82b3838832edd3f298fa2c93a543a57724", kill_on_drop: false }` [INFO] [stdout] 12f591a735fddbe73e80242f4da91f82b3838832edd3f298fa2c93a543a57724