[INFO] crate mockiato 0.9.5 is already in cache
[INFO] checking mockiato-0.9.5 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate mockiato 0.9.5 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate mockiato 0.9.5 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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-14/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" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bf4f680f7164c8bf97bf3b6e8e83e7c64f02666c8b6f429b1c2d5a896cc4367
[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" "2bf4f680f7164c8bf97bf3b6e8e83e7c64f02666c8b6f429b1c2d5a896cc4367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bf4f680f7164c8bf97bf3b6e8e83e7c64f02666c8b6f429b1c2d5a896cc4367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf4f680f7164c8bf97bf3b6e8e83e7c64f02666c8b6f429b1c2d5a896cc4367", kill_on_drop: false }`
[INFO] [stdout] 2bf4f680f7164c8bf97bf3b6e8e83e7c64f02666c8b6f429b1c2d5a896cc4367
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cd6b17905d2dd63b382ac03c5cc54f8088334309d15de516633012ac0986cea
[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" "6cd6b17905d2dd63b382ac03c5cc54f8088334309d15de516633012ac0986cea", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking nearly_eq v0.2.4
[INFO] [stderr]     Checking nameof v1.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling heck v0.3.1
[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" "6cd6b17905d2dd63b382ac03c5cc54f8088334309d15de516633012ac0986cea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd6b17905d2dd63b382ac03c5cc54f8088334309d15de516633012ac0986cea", kill_on_drop: false }`
[INFO] [stdout] 6cd6b17905d2dd63b382ac03c5cc54f8088334309d15de516633012ac0986cea