[INFO] cloning repository https://github.com/Kirguir/tracedemo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kirguir/tracedemo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKirguir%2Ftracedemo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKirguir%2Ftracedemo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7074f57bbf918f7902c99357cf3bd3d23a84e4d9
[INFO] testing Kirguir/tracedemo against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKirguir%2Ftracedemo" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kirguir/tracedemo on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Kirguir/tracedemo
[INFO] finished tweaking git repo https://github.com/Kirguir/tracedemo
[INFO] tweaked toml for git repo https://github.com/Kirguir/tracedemo written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Kirguir/tracedemo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.50
[INFO] [stderr]   Downloaded web-sys v0.3.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b069b5a794667a162d3b76f67f5a51f1e53c521a599b4a87f7e249055d9a80e
[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" "8b069b5a794667a162d3b76f67f5a51f1e53c521a599b4a87f7e249055d9a80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b069b5a794667a162d3b76f67f5a51f1e53c521a599b4a87f7e249055d9a80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b069b5a794667a162d3b76f67f5a51f1e53c521a599b4a87f7e249055d9a80e", kill_on_drop: false }`
[INFO] [stdout] 8b069b5a794667a162d3b76f67f5a51f1e53c521a599b4a87f7e249055d9a80e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 13986f34de148e00207178996dfec6fe2255dee8a0db945f5d16f5da570261c6
[INFO] running `Command { std: "docker" "start" "-a" "13986f34de148e00207178996dfec6fe2255dee8a0db945f5d16f5da570261c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.50
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.50
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]    Compiling backtrace v0.3.38
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.50
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.50
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.50
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.50
[INFO] [stderr]    Compiling web-sys v0.3.27
[INFO] [stderr]    Compiling js-sys v0.3.27
[INFO] [stderr]    Compiling tracedemo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: can only #[wasm_bindgen] public functions
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / fn get_media_manager(detached:bool) -> Result<MediaManager, DetachedStateError> {
[INFO] [stdout] 12 | |     if detached {
[INFO] [stdout] 13 | |         Err(DetachedStateError::new("DetachedStateError when accessing media_manager"))
[INFO] [stdout] 14 | |     } else {
[INFO] [stdout] 15 | |         Ok(MediaManager{})
[INFO] [stdout] 16 | |     }
[INFO] [stdout] 17 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MediaStreamConstraints`, `MediaStream`
[INFO] [stdout]  --> src/lib.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use web_sys::{MediaStreamConstraints, MediaStream};
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DetachedStateError`, `JasonError`, `MediaError`
[INFO] [stdout]  --> src/lib.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::errors::{DetachedStateError, JasonError, MediaError};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tracedemo`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "13986f34de148e00207178996dfec6fe2255dee8a0db945f5d16f5da570261c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13986f34de148e00207178996dfec6fe2255dee8a0db945f5d16f5da570261c6", kill_on_drop: false }`
[INFO] [stdout] 13986f34de148e00207178996dfec6fe2255dee8a0db945f5d16f5da570261c6