[INFO] cloning repository https://github.com/mzmt/rust_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mzmt/rust_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzmt%2Frust_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzmt%2Frust_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f9fd57c48722894d048ea99e7a13aaea3f1c75a
[INFO] checking mzmt/rust_calculator against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzmt%2Frust_calculator" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/mzmt/rust_calculator on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mzmt/rust_calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dces v0.2.0
[INFO] [stderr]   Downloaded cssparser-macros v0.3.6
[INFO] [stderr]   Downloaded cssparser v0.17.0
[INFO] [stderr]   Downloaded raqote v0.7.14
[INFO] [stderr]   Downloaded orbtk-utils v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-css-engine v0.3.0-alpha1
[INFO] [stderr]   Downloaded minifb v0.13.0
[INFO] [stderr]   Downloaded orbtk-api v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-render v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-shell v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-proc-macros v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk v0.3.1-alpha1
[INFO] [stderr]   Downloaded sw-composite v0.7.6
[INFO] [stderr]   Downloaded orbtk-theme v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-widgets v0.3.0-alpha1
[INFO] [stderr]   Downloaded spin_sleep v0.3.7
[INFO] [stderr]   Downloaded orbtk-tree v0.3.0-alpha1
[INFO] [stderr]   Downloaded lyon_geom v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3336574c0b5d54577b8393b028d6d5d5c1c6704bbbbefedd5299e599109ba77e
[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" "3336574c0b5d54577b8393b028d6d5d5c1c6704bbbbefedd5299e599109ba77e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3336574c0b5d54577b8393b028d6d5d5c1c6704bbbbefedd5299e599109ba77e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3336574c0b5d54577b8393b028d6d5d5c1c6704bbbbefedd5299e599109ba77e", kill_on_drop: false }`
[INFO] [stdout] 3336574c0b5d54577b8393b028d6d5d5c1c6704bbbbefedd5299e599109ba77e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dabf61eb94c090bbcfa9567fd5441414c76580e0d5e7403f908a276b88735d78
[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" "dabf61eb94c090bbcfa9567fd5441414c76580e0d5e7403f908a276b88735d78", kill_on_drop: false }`
[INFO] [stderr]     Checking orbtk-utils v0.3.0-alpha1
[INFO] [stderr]     Checking sw-composite v0.7.6
[INFO] [stderr]     Checking orbtk-tree v0.3.0-alpha1
[INFO] [stderr]    Compiling minifb v0.13.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]    Compiling orbtk-proc-macros v0.3.0-alpha1
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking lyon_geom v0.15.1
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking raqote v0.7.14
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking cssparser v0.17.0
[INFO] [stderr]     Checking orbtk-css-engine v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk-theme v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk-render v0.3.0-alpha1
[INFO] [stderr]     Checking orbtk-shell 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] [stdout] warning: unused import: `orbtk::prelude::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use orbtk::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `rust_calculator`
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | use orbtk::prelude::*;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_calculator`
[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: unused import: `orbtk::prelude::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use orbtk::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "dabf61eb94c090bbcfa9567fd5441414c76580e0d5e7403f908a276b88735d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabf61eb94c090bbcfa9567fd5441414c76580e0d5e7403f908a276b88735d78", kill_on_drop: false }`
[INFO] [stdout] dabf61eb94c090bbcfa9567fd5441414c76580e0d5e7403f908a276b88735d78