[INFO] fetching crate webex 0.3.0...
[INFO] checking webex-0.3.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate webex 0.3.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate webex 0.3.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webex 0.3.0
[INFO] finished tweaking crates.io crate webex 0.3.0
[INFO] tweaked toml for crates.io crate webex 0.3.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate webex 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", 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] d880e42df15357b267a5721b9da642bcf89a8c68644863fd5f2f587164fe8e77
[INFO] running `Command { std: "docker" "start" "-a" "d880e42df15357b267a5721b9da642bcf89a8c68644863fd5f2f587164fe8e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d880e42df15357b267a5721b9da642bcf89a8c68644863fd5f2f587164fe8e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d880e42df15357b267a5721b9da642bcf89a8c68644863fd5f2f587164fe8e77", kill_on_drop: false }`
[INFO] [stdout] d880e42df15357b267a5721b9da642bcf89a8c68644863fd5f2f587164fe8e77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "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] c11c73bd46994717088a4ff105dbd8c4c6904518f95445d58df8e8167606576a
[INFO] running `Command { std: "docker" "start" "-a" "c11c73bd46994717088a4ff105dbd8c4c6904518f95445d58df8e8167606576a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling tokio v1.10.1
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]     Checking tracing-core v0.1.19
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking object v0.26.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking sha-1 v0.9.7
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.7
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking tungstenite v0.15.0
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking tungstenite v0.14.0
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.10.0
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking serde v1.0.129
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking tokio-tungstenite v0.15.0
[INFO] [stderr]     Checking h2 v0.3.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking hyper v0.14.12
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking webex v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> examples/hello-world.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> examples/auto-reply.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/hello-world.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | async fn main() {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `webex` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> examples/auto-reply.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | async fn main() {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c11c73bd46994717088a4ff105dbd8c4c6904518f95445d58df8e8167606576a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c11c73bd46994717088a4ff105dbd8c4c6904518f95445d58df8e8167606576a", kill_on_drop: false }`
[INFO] [stdout] c11c73bd46994717088a4ff105dbd8c4c6904518f95445d58df8e8167606576a
