[INFO] updating cached repository https://github.com/mzmt/rust_calculator
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f9fd57c48722894d048ea99e7a13aaea3f1c75a
[INFO] checking mzmt/rust_calculator against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzmt%2Frust_calculator" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/mzmt/rust_calculator on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mzmt/rust_calculator
[INFO] finished tweaking git repo https://github.com/mzmt/rust_calculator
[INFO] tweaked toml for git repo https://github.com/mzmt/rust_calculator written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mzmt/rust_calculator already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a006fbd04a29bb0d66e4802d7bc3b4a5f4c8d6bdbd64b483ab0d3a85c8dfbbbd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a006fbd04a29bb0d66e4802d7bc3b4a5f4c8d6bdbd64b483ab0d3a85c8dfbbbd"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking orbtk-utils v0.3.0-alpha1
[INFO] [stderr]     Checking sw-composite v0.7.6
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking dces v0.2.0
[INFO] [stderr]     Checking spin_sleep v0.3.7
[INFO] [stderr]    Compiling minifb v0.13.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking euclid v0.20.7
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]    Compiling cssparser v0.17.0
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking orbtk-tree v0.3.0-alpha1
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking lyon_geom v0.15.1
[INFO] [stderr]     Checking raqote v0.7.14
[INFO] [stderr]     Checking orbtk-render v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk-shell v0.3.0-alpha1
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling orbtk-proc-macros v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk-css-engine v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk-theme v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk-api v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk-widgets v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk v0.3.1-alpha1
[INFO] [stderr]     Checking rust_calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `orbtk::prelude::*`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use orbtk::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `orbtk::prelude::*`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use orbtk::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `rust_calculator`
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | use orbtk::prelude::*;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^ consider adding a `main` function to `src/main.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `rust_calculator`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a006fbd04a29bb0d66e4802d7bc3b4a5f4c8d6bdbd64b483ab0d3a85c8dfbbbd"`
[INFO] running `"docker" "rm" "-f" "a006fbd04a29bb0d66e4802d7bc3b4a5f4c8d6bdbd64b483ab0d3a85c8dfbbbd"`
[INFO] [stdout] a006fbd04a29bb0d66e4802d7bc3b4a5f4c8d6bdbd64b483ab0d3a85c8dfbbbd
