[INFO] cloning repository https://github.com/grng3r/cryptosteganogram-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grng3r/cryptosteganogram-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrng3r%2Fcryptosteganogram-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrng3r%2Fcryptosteganogram-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 273c1366e8278da64a7d22efe0ee0086ed5487cc [INFO] checking grng3r/cryptosteganogram-rs against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrng3r%2Fcryptosteganogram-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/grng3r/cryptosteganogram-rs [INFO] finished tweaking git repo https://github.com/grng3r/cryptosteganogram-rs [INFO] tweaked toml for git repo https://github.com/grng3r/cryptosteganogram-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/grng3r/cryptosteganogram-rs on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/grng3r/cryptosteganogram-rs 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7229143e30fff34f6f11fe1079c4fc549e8ef56a7a75844b0a9752c0637ad103 [INFO] running `Command { std: "docker" "start" "-a" "7229143e30fff34f6f11fe1079c4fc549e8ef56a7a75844b0a9752c0637ad103", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7229143e30fff34f6f11fe1079c4fc549e8ef56a7a75844b0a9752c0637ad103", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7229143e30fff34f6f11fe1079c4fc549e8ef56a7a75844b0a9752c0637ad103", kill_on_drop: false }` [INFO] [stdout] 7229143e30fff34f6f11fe1079c4fc549e8ef56a7a75844b0a9752c0637ad103 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8b501ea03090512a1a4fb2ee0e3e20bba5d0b8e350b8199cc5a38826a0182bb3 [INFO] running `Command { std: "docker" "start" "-a" "8b501ea03090512a1a4fb2ee0e3e20bba5d0b8e350b8199cc5a38826a0182bb3", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Compiling unicode-ident v1.0.17 [INFO] [stderr] Compiling autocfg v1.4.0 [INFO] [stderr] Compiling heck v0.5.0 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Checking log v0.4.26 [INFO] [stderr] Checking strength_reduce v0.2.4 [INFO] [stderr] Checking hound v3.5.1 [INFO] [stderr] Checking cryptosteganogram v0.1.0 (/opt/rustwide/workdir/cryptosteganogram) [INFO] [stderr] Compiling rustfft v6.2.0 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling quote v1.0.38 [INFO] [stderr] Compiling syn v2.0.98 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking num-complex v0.4.6 [INFO] [stderr] Checking transpose v0.2.3 [INFO] [stderr] Checking primal-check v0.3.4 [INFO] [stderr] Compiling snafu-derive v0.8.5 [INFO] [stderr] Checking snafu v0.8.5 [INFO] [stderr] Checking midi_file v0.0.6 [INFO] [stderr] Checking musical_cryptogram v0.1.0 (/opt/rustwide/workdir/musical_cryptogram) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> musical_cryptogram/src/lib.rs:736:17 [INFO] [stdout] | [INFO] [stdout] 736 | let mut n = letter_to_note(scale, c).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] --> musical_cryptogram/src/lib.rs:736:17 [INFO] [stdout] | [INFO] [stdout] 736 | let mut n = letter_to_note(scale, c).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: unused `Result` that must be used [INFO] [stdout] --> musical_cryptogram/src/lib.rs:677:5 [INFO] [stdout] | [INFO] [stdout] 677 | track.set_name("Challenge_only_notes"); [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] 677 | let _ = track.set_name("Challenge_only_notes"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> musical_cryptogram/src/lib.rs:678:5 [INFO] [stdout] | [INFO] [stdout] 678 | track.set_general_midi(channel, GeneralMidi::ElectricGrandPiano); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 678 | let _ = track.set_general_midi(channel, GeneralMidi::ElectricGrandPiano); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> musical_cryptogram/src/lib.rs:677:5 [INFO] [stdout] | [INFO] [stdout] 677 | track.set_name("Challenge_only_notes"); [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] 677 | let _ = track.set_name("Challenge_only_notes"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> musical_cryptogram/src/lib.rs:678:5 [INFO] [stdout] | [INFO] [stdout] 678 | track.set_general_midi(channel, GeneralMidi::ElectricGrandPiano); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 678 | let _ = track.set_general_midi(channel, GeneralMidi::ElectricGrandPiano); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking steganography v0.1.0 (/opt/rustwide/workdir/steganography) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.04s [INFO] running `Command { std: "docker" "inspect" "8b501ea03090512a1a4fb2ee0e3e20bba5d0b8e350b8199cc5a38826a0182bb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b501ea03090512a1a4fb2ee0e3e20bba5d0b8e350b8199cc5a38826a0182bb3", kill_on_drop: false }` [INFO] [stdout] 8b501ea03090512a1a4fb2ee0e3e20bba5d0b8e350b8199cc5a38826a0182bb3