[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] testing mzmt/rust_calculator against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzmt%2Frust_calculator" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
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[INFO] validating manifest of git repo https://github.com/mzmt/rust_calculator on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-22/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded orbtk-widgets v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-utils v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-css-engine v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-theme v0.3.0-alpha1
[INFO] [stderr]   Downloaded orbtk-render v0.3.0-alpha1
[INFO] [stderr]   Downloaded raqote v0.7.14
[INFO] [stderr]   Downloaded orbtk-api v0.3.0-alpha1
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[INFO] [stderr]   Downloaded orbtk-tree v0.3.0-alpha1
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[INFO] [stderr]   Downloaded orbtk-shell v0.3.0-alpha1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a3d981947d091f39ddd6735a460c5176c10ebd2b828d1ff9b4629d1a7580506
[INFO] running `Command { std: "docker" "start" "-a" "0a3d981947d091f39ddd6735a460c5176c10ebd2b828d1ff9b4629d1a7580506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a3d981947d091f39ddd6735a460c5176c10ebd2b828d1ff9b4629d1a7580506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a3d981947d091f39ddd6735a460c5176c10ebd2b828d1ff9b4629d1a7580506", kill_on_drop: false }`
[INFO] [stdout] 0a3d981947d091f39ddd6735a460c5176c10ebd2b828d1ff9b4629d1a7580506
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d6ca06e4fc2a737cdfd61552377b18e62da4eb406d4195c6aa227c98d732c99
[INFO] running `Command { std: "docker" "start" "-a" "7d6ca06e4fc2a737cdfd61552377b18e62da4eb406d4195c6aa227c98d732c99", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.68
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[INFO] [stderr]    Compiling num_cpus v1.12.0
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[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
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[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling rusttype v0.8.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling lyon_geom v0.15.1
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[INFO] [stderr]    Compiling raqote v0.7.14
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling image v0.22.5
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling orbtk-proc-macros v0.3.0-alpha1
[INFO] [stderr]    Compiling orbtk-render v0.3.0-alpha1
[INFO] [stderr]    Compiling orbtk-shell v0.3.0-alpha1
[INFO] [stderr]    Compiling orbtk-css-engine v0.3.0-alpha1
[INFO] [stderr]    Compiling orbtk-theme v0.3.0-alpha1
[INFO] [stderr]    Compiling orbtk-api v0.3.0-alpha1
[INFO] [stderr]    Compiling orbtk-widgets v0.3.0-alpha1
[INFO] [stderr]    Compiling orbtk v0.3.1-alpha1
[INFO] [stderr]    Compiling 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` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7d6ca06e4fc2a737cdfd61552377b18e62da4eb406d4195c6aa227c98d732c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d6ca06e4fc2a737cdfd61552377b18e62da4eb406d4195c6aa227c98d732c99", kill_on_drop: false }`
[INFO] [stdout] 7d6ca06e4fc2a737cdfd61552377b18e62da4eb406d4195c6aa227c98d732c99