[INFO] fetching crate piston-music 0.26.0...
[INFO] checking piston-music-0.26.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate piston-music 0.26.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate piston-music 0.26.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piston-music 0.26.0
[INFO] finished tweaking crates.io crate piston-music 0.26.0
[INFO] tweaked toml for crates.io crate piston-music 0.26.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate piston-music 0.26.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.65.0
[INFO] [stderr]   Downloaded current v0.1.2
[INFO] [stderr]   Downloaded piston_window v0.110.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f35ccf76219d78446eef8aebab82a52c053129fc7afc966aa472dcc86464b8c
[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" "4f35ccf76219d78446eef8aebab82a52c053129fc7afc966aa472dcc86464b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f35ccf76219d78446eef8aebab82a52c053129fc7afc966aa472dcc86464b8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f35ccf76219d78446eef8aebab82a52c053129fc7afc966aa472dcc86464b8c", kill_on_drop: false }`
[INFO] [stdout] 4f35ccf76219d78446eef8aebab82a52c053129fc7afc966aa472dcc86464b8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 994c3d4c5769225009b2f5bbdfc0f3fee7a520ee01e3c7a920fae6cb49a576e5
[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" "994c3d4c5769225009b2f5bbdfc0f3fee7a520ee01e3c7a920fae6cb49a576e5", kill_on_drop: false }`
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking piston-graphics_api_version v0.2.0
[INFO] [stderr]    Compiling sdl2 v0.34.2
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking current v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling sdl2-sys v0.34.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking shader_version v0.6.0
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking piston2d-graphics v0.36.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking glutin_glx_sys v0.1.6
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking piston-music v0.26.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking image v0.23.7
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking piston-gfx_texture v0.41.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.68.0
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking pistoncore-input v1.0.0
[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]     Checking pistoncore-window v0.46.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.51.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.65.0
[INFO] [stderr]     Checking pistoncore-sdl2_window v0.65.0
[INFO] [stderr]     Checking piston v0.51.0
[INFO] [stderr]     Checking piston_window v0.110.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.84s
[INFO] running `Command { std: "docker" "inspect" "994c3d4c5769225009b2f5bbdfc0f3fee7a520ee01e3c7a920fae6cb49a576e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994c3d4c5769225009b2f5bbdfc0f3fee7a520ee01e3c7a920fae6cb49a576e5", kill_on_drop: false }`
[INFO] [stdout] 994c3d4c5769225009b2f5bbdfc0f3fee7a520ee01e3c7a920fae6cb49a576e5