[INFO] fetching crate mockiato 0.9.5...
[INFO] checking mockiato-0.9.5 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate mockiato 0.9.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mockiato 0.9.5 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mockiato 0.9.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mockiato 0.9.5
[INFO] tweaked toml for crates.io crate mockiato 0.9.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate mockiato 0.9.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5043c9dae1cdd9edbe9674c9cceb6b51028d8b5175be86a5d6f43f197ac92701
[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" "5043c9dae1cdd9edbe9674c9cceb6b51028d8b5175be86a5d6f43f197ac92701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5043c9dae1cdd9edbe9674c9cceb6b51028d8b5175be86a5d6f43f197ac92701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5043c9dae1cdd9edbe9674c9cceb6b51028d8b5175be86a5d6f43f197ac92701", kill_on_drop: false }`
[INFO] [stdout] 5043c9dae1cdd9edbe9674c9cceb6b51028d8b5175be86a5d6f43f197ac92701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4096a00178c5f45d2494a792c6cef4a4129bfd5664f425b5dcc76899eea8222f
[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" "4096a00178c5f45d2494a792c6cef4a4129bfd5664f425b5dcc76899eea8222f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking nameof v1.1.0
[INFO] [stderr]     Checking nearly_eq v0.2.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling mockiato-codegen v0.9.5
[INFO] [stderr]    Compiling mockiato v0.9.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stdout] error[E0601]: `main` function not found in crate `downcasting`
[INFO] [stdout]   --> examples/downcasting.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / #[cfg(test)]
[INFO] [stdout] 6  | | use mockiato::mockable;
[INFO] [stdout] 7  | | use std::any::Any;
[INFO] [stdout] 8  | |
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |     dbg!(&concrete_behavior);
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `examples/downcasting.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mockiato`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4096a00178c5f45d2494a792c6cef4a4129bfd5664f425b5dcc76899eea8222f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4096a00178c5f45d2494a792c6cef4a4129bfd5664f425b5dcc76899eea8222f", kill_on_drop: false }`
[INFO] [stdout] 4096a00178c5f45d2494a792c6cef4a4129bfd5664f425b5dcc76899eea8222f
