[INFO] fetching crate mockiato 0.9.5... [INFO] checking mockiato-0.9.5 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846 [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 d990716b6a1fdde1300748828a9c9e79dfd0b898 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded mockiato-codegen v0.9.5 [INFO] [stderr] Downloaded nearly_eq v0.2.4 [INFO] [stderr] Downloaded nameof v1.1.0 [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" "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" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 388264655c6d627acd033a2c97e36181e09149fd29f2e9161e4323f2ab307eaf [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" "388264655c6d627acd033a2c97e36181e09149fd29f2e9161e4323f2ab307eaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "388264655c6d627acd033a2c97e36181e09149fd29f2e9161e4323f2ab307eaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "388264655c6d627acd033a2c97e36181e09149fd29f2e9161e4323f2ab307eaf", kill_on_drop: false }` [INFO] [stdout] 388264655c6d627acd033a2c97e36181e09149fd29f2e9161e4323f2ab307eaf [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" "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" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8bf36fcd4bd1c7136f7fc16a13b7547bbcc0cd53a960e03ed3c9dabe2cc5101d [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" "8bf36fcd4bd1c7136f7fc16a13b7547bbcc0cd53a960e03ed3c9dabe2cc5101d", kill_on_drop: false }` [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 nameof v1.1.0 [INFO] [stderr] Checking nearly_eq v0.2.4 [INFO] [stderr] Compiling mockiato-codegen v0.9.5 [INFO] [stderr] Compiling mockiato v0.9.5 (/opt/rustwide/workdir) [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:110:62 [INFO] [stdout] | [INFO] [stdout] 110 | #![cfg_attr(rustc_is_nightly, feature(doc_cfg, external_doc, specialization))] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:110:62 [INFO] [stdout] | [INFO] [stdout] 110 | #![cfg_attr(rustc_is_nightly, feature(doc_cfg, external_doc, specialization))] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [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] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "8bf36fcd4bd1c7136f7fc16a13b7547bbcc0cd53a960e03ed3c9dabe2cc5101d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8bf36fcd4bd1c7136f7fc16a13b7547bbcc0cd53a960e03ed3c9dabe2cc5101d", kill_on_drop: false }` [INFO] [stdout] 8bf36fcd4bd1c7136f7fc16a13b7547bbcc0cd53a960e03ed3c9dabe2cc5101d