[INFO] cloning repository https://github.com/wildyeast/wasm-fm-synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wildyeast/wasm-fm-synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwildyeast%2Fwasm-fm-synth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwildyeast%2Fwasm-fm-synth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 569d5a3fe3077aeec611129ce374171db23f87b8
[INFO] checking wildyeast/wasm-fm-synth against master#7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772 for pr-73084-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwildyeast%2Fwasm-fm-synth" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wildyeast/wasm-fm-synth on toolchain 7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wildyeast/wasm-fm-synth
[INFO] finished tweaking git repo https://github.com/wildyeast/wasm-fm-synth
[INFO] tweaked toml for git repo https://github.com/wildyeast/wasm-fm-synth written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wildyeast/wasm-fm-synth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3adcb86ef3c5f691270dd506f1bb49c0dcca626364a97cedd1659463561c38fa
[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" "3adcb86ef3c5f691270dd506f1bb49c0dcca626364a97cedd1659463561c38fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3adcb86ef3c5f691270dd506f1bb49c0dcca626364a97cedd1659463561c38fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3adcb86ef3c5f691270dd506f1bb49c0dcca626364a97cedd1659463561c38fa", kill_on_drop: false }`
[INFO] [stdout] 3adcb86ef3c5f691270dd506f1bb49c0dcca626364a97cedd1659463561c38fa
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+7750c3d46bc19784adb1ee6e37a5ec7e4cd7e772" "check" "--frozen" "--all" "--all-targets" "--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] 5a7625064f8b75cb7f542b9162fb41afdc666a4d3c0f02046d7a2d25e6683202
[INFO] running `Command { std: "docker" "start" "-a" "5a7625064f8b75cb7f542b9162fb41afdc666a4d3c0f02046d7a2d25e6683202", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.58
[INFO] [stderr]    Compiling bumpalo v3.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.58
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.58
[INFO] [stderr]    Compiling web-sys v0.3.35
[INFO] [stderr]     Checking js-sys v0.3.35
[INFO] [stderr]     Checking webaudio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.96s
[INFO] running `Command { std: "docker" "inspect" "5a7625064f8b75cb7f542b9162fb41afdc666a4d3c0f02046d7a2d25e6683202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a7625064f8b75cb7f542b9162fb41afdc666a4d3c0f02046d7a2d25e6683202", kill_on_drop: false }`
[INFO] [stdout] 5a7625064f8b75cb7f542b9162fb41afdc666a4d3c0f02046d7a2d25e6683202