[INFO] cloning repository https://github.com/jaburns/rustmusic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaburns/rustmusic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaburns%2Frustmusic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaburns%2Frustmusic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 464f16f2770dc60f64657354e4b830a85bb76a99
[INFO] checking jaburns/rustmusic against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaburns%2Frustmusic" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jaburns/rustmusic on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jaburns/rustmusic
[INFO] finished tweaking git repo https://github.com/jaburns/rustmusic
[INFO] tweaked toml for git repo https://github.com/jaburns/rustmusic written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jaburns/rustmusic 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memalloc v0.1.0
[INFO] [stderr]   Downloaded coremidi-sys v2.0.2
[INFO] [stderr]   Downloaded winmm-sys v0.2.0
[INFO] [stderr]   Downloaded num-integer v0.1.38
[INFO] [stderr]   Downloaded midir v0.5.0
[INFO] [stderr]   Downloaded num-traits v0.2.4
[INFO] [stderr]   Downloaded nix v0.9.0
[INFO] [stderr]   Downloaded imgui-opengl-renderer v0.2.0
[INFO] [stderr]   Downloaded cc v1.0.17
[INFO] [stderr]   Downloaded imgui v0.0.18
[INFO] [stderr]   Downloaded imgui-sdl2 v0.2.1
[INFO] [stderr]   Downloaded alsa v0.2.0
[INFO] [stderr]   Downloaded core-foundation v0.2.3
[INFO] [stderr]   Downloaded core-foundation-sys v0.2.3
[INFO] [stderr]   Downloaded coremidi v0.3.0
[INFO] [stderr]   Downloaded imgui-sys v0.0.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9216da75df1384f7c9cae020a3a891d09ccf47b11e58f91aa4d4fcb0d1d47bb6
[INFO] running `Command { std: "docker" "start" "-a" "9216da75df1384f7c9cae020a3a891d09ccf47b11e58f91aa4d4fcb0d1d47bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9216da75df1384f7c9cae020a3a891d09ccf47b11e58f91aa4d4fcb0d1d47bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9216da75df1384f7c9cae020a3a891d09ccf47b11e58f91aa4d4fcb0d1d47bb6", kill_on_drop: false }`
[INFO] [stdout] 9216da75df1384f7c9cae020a3a891d09ccf47b11e58f91aa4d4fcb0d1d47bb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3a700cc6a69677f4b47ae3b2cef220ffc5a7da8c33081ec197d43d15b310d8e
[INFO] running `Command { std: "docker" "start" "-a" "a3a700cc6a69677f4b47ae3b2cef220ffc5a7da8c33081ec197d43d15b310d8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling rustmusic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling imgui-sys v0.0.18
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking memalloc v0.1.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]    Compiling imgui-opengl-renderer v0.2.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]     Checking alsa v0.2.0
[INFO] [stderr]     Checking midir v0.5.0
[INFO] [stderr]     Checking imgui v0.0.18
[INFO] [stderr]     Checking imgui-sdl2 v0.2.1
[INFO] [stdout] warning: the item `gl` is imported redundantly
[INFO] [stdout]  --> src/core.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gl;
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate gl;
[INFO] [stdout]   | ---------------- the item `gl` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui` is imported redundantly
[INFO] [stdout]  --> src/core.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use imgui;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate imgui;
[INFO] [stdout]   | ------------------- the item `imgui` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui_opengl_renderer` is imported redundantly
[INFO] [stdout]  --> src/core.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use imgui_opengl_renderer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate imgui_opengl_renderer;
[INFO] [stdout]   | ----------------------------------- the item `imgui_opengl_renderer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui_sdl2` is imported redundantly
[INFO] [stdout]  --> src/core.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use imgui_sdl2;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate imgui_sdl2;
[INFO] [stdout]   | ------------------------ the item `imgui_sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/core.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/core.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/audio.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     producers: Vec<Box<Producer>>,
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     producers: Vec<Box<dyn Producer>>,
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `velocity` is never read
[INFO] [stdout]   --> src/midi.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MidiMessage {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub velocity: u8,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MidiMessage` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gl` is imported redundantly
[INFO] [stdout]  --> src/core.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gl;
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate gl;
[INFO] [stdout]   | ---------------- the item `gl` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui` is imported redundantly
[INFO] [stdout]  --> src/core.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use imgui;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate imgui;
[INFO] [stdout]   | ------------------- the item `imgui` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui_opengl_renderer` is imported redundantly
[INFO] [stdout]  --> src/core.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use imgui_opengl_renderer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate imgui_opengl_renderer;
[INFO] [stdout]   | ----------------------------------- the item `imgui_opengl_renderer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui_sdl2` is imported redundantly
[INFO] [stdout]  --> src/core.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use imgui_sdl2;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate imgui_sdl2;
[INFO] [stdout]   | ------------------------ the item `imgui_sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/core.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/core.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/audio.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     producers: Vec<Box<Producer>>,
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     producers: Vec<Box<dyn Producer>>,
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `velocity` is never read
[INFO] [stdout]   --> src/midi.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MidiMessage {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub velocity: u8,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MidiMessage` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.99s
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a3a700cc6a69677f4b47ae3b2cef220ffc5a7da8c33081ec197d43d15b310d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3a700cc6a69677f4b47ae3b2cef220ffc5a7da8c33081ec197d43d15b310d8e", kill_on_drop: false }`
[INFO] [stdout] a3a700cc6a69677f4b47ae3b2cef220ffc5a7da8c33081ec197d43d15b310d8e
[INFO] checking jaburns/rustmusic against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaburns%2Frustmusic" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jaburns/rustmusic on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jaburns/rustmusic
[INFO] finished tweaking git repo https://github.com/jaburns/rustmusic
[INFO] tweaked toml for git repo https://github.com/jaburns/rustmusic written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jaburns/rustmusic 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6871da9be804592a630b2d8d25a8260fdad9b2412f78f89181711f61711a0be9
[INFO] running `Command { std: "docker" "start" "-a" "6871da9be804592a630b2d8d25a8260fdad9b2412f78f89181711f61711a0be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6871da9be804592a630b2d8d25a8260fdad9b2412f78f89181711f61711a0be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6871da9be804592a630b2d8d25a8260fdad9b2412f78f89181711f61711a0be9", kill_on_drop: false }`
[INFO] [stdout] 6871da9be804592a630b2d8d25a8260fdad9b2412f78f89181711f61711a0be9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa7a1598754521edc5efafc8a9340f98697fe46613e2234b873f2eeaf2542a01
[INFO] running `Command { std: "docker" "start" "-a" "fa7a1598754521edc5efafc8a9340f98697fe46613e2234b873f2eeaf2542a01", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]    Compiling imgui-sys v0.0.18
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]    Compiling rustmusic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking memalloc v0.1.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling imgui-opengl-renderer v0.2.0
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking alsa v0.2.0
[INFO] [stderr]     Checking midir v0.5.0
[INFO] [stderr]     Checking imgui v0.0.18
[INFO] [stderr]     Checking imgui-sdl2 v0.2.1
[INFO] [stdout] warning: the item `gl` is imported redundantly
[INFO] [stdout]  --> src/core.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gl;
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate gl;
[INFO] [stdout]   | ---------------- the item `gl` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gl` is imported redundantly
[INFO] [stdout]  --> src/core.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gl;
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate gl;
[INFO] [stdout]   | ---------------- the item `gl` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui` is imported redundantly
[INFO] [stdout]  --> src/core.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use imgui;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate imgui;
[INFO] [stdout]   | ------------------- the item `imgui` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui_opengl_renderer` is imported redundantly
[INFO] [stdout]  --> src/core.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use imgui_opengl_renderer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate imgui_opengl_renderer;
[INFO] [stdout]   | ----------------------------------- the item `imgui_opengl_renderer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui_sdl2` is imported redundantly
[INFO] [stdout]  --> src/core.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use imgui_sdl2;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate imgui_sdl2;
[INFO] [stdout]   | ------------------------ the item `imgui_sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/core.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/core.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/audio.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     producers: Vec<Box<Producer>>,
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     producers: Vec<Box<dyn Producer>>,
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui` is imported redundantly
[INFO] [stdout]  --> src/core.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use imgui;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate imgui;
[INFO] [stdout]   | ------------------- the item `imgui` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui_opengl_renderer` is imported redundantly
[INFO] [stdout]  --> src/core.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use imgui_opengl_renderer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate imgui_opengl_renderer;
[INFO] [stdout]   | ----------------------------------- the item `imgui_opengl_renderer` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `imgui_sdl2` is imported redundantly
[INFO] [stdout]  --> src/core.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use imgui_sdl2;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate imgui_sdl2;
[INFO] [stdout]   | ------------------------ the item `imgui_sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/core.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/core.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/audio.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     producers: Vec<Box<Producer>>,
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     producers: Vec<Box<dyn Producer>>,
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `velocity` is never read
[INFO] [stdout]   --> src/midi.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MidiMessage {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub velocity: u8,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MidiMessage` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `velocity` is never read
[INFO] [stdout]   --> src/midi.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MidiMessage {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub velocity: u8,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MidiMessage` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.62s
[INFO] running `Command { std: "docker" "inspect" "fa7a1598754521edc5efafc8a9340f98697fe46613e2234b873f2eeaf2542a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa7a1598754521edc5efafc8a9340f98697fe46613e2234b873f2eeaf2542a01", kill_on_drop: false }`
[INFO] [stdout] fa7a1598754521edc5efafc8a9340f98697fe46613e2234b873f2eeaf2542a01