[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 beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzmt%2Frust_calculator" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  64% (852/1316)   
Checking out files:  65% (856/1316)   
Checking out files:  66% (869/1316)   
Checking out files:  67% (882/1316)   
Checking out files:  68% (895/1316)   
Checking out files:  69% (909/1316)   
Checking out files:  70% (922/1316)   
Checking out files:  71% (935/1316)   
Checking out files:  72% (948/1316)   
Checking out files:  72% (951/1316)   
Checking out files:  73% (961/1316)   
Checking out files:  74% (974/1316)   
Checking out files:  75% (987/1316)   
Checking out files:  76% (1001/1316)   
Checking out files:  77% (1014/1316)   
Checking out files:  78% (1027/1316)   
Checking out files:  79% (1040/1316)   
Checking out files:  80% (1053/1316)   
Checking out files:  81% (1066/1316)   
Checking out files:  82% (1080/1316)   
Checking out files:  83% (1093/1316)   
Checking out files:  84% (1106/1316)   
Checking out files:  85% (1119/1316)   
Checking out files:  86% (1132/1316)   
Checking out files:  87% (1145/1316)   
Checking out files:  88% (1159/1316)   
Checking out files:  89% (1172/1316)   
Checking out files:  90% (1185/1316)   
Checking out files:  91% (1198/1316)   
Checking out files:  92% (1211/1316)   
Checking out files:  93% (1224/1316)   
Checking out files:  94% (1238/1316)   
Checking out files:  95% (1251/1316)   
Checking out files:  96% (1264/1316)   
Checking out files:  97% (1277/1316)   
Checking out files:  98% (1290/1316)   
Checking out files:  99% (1303/1316)   
Checking out files: 100% (1316/1316)   
Checking out files: 100% (1316/1316), done.
[INFO] validating manifest of git repo https://github.com/mzmt/rust_calculator on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-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 `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 156474998d85192518b1c535c2d8f826c83cf37999915fe586d7d248b1a73708
[INFO] running `Command { std: "docker" "start" "-a" "156474998d85192518b1c535c2d8f826c83cf37999915fe586d7d248b1a73708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "156474998d85192518b1c535c2d8f826c83cf37999915fe586d7d248b1a73708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156474998d85192518b1c535c2d8f826c83cf37999915fe586d7d248b1a73708", kill_on_drop: false }`
[INFO] [stdout] 156474998d85192518b1c535c2d8f826c83cf37999915fe586d7d248b1a73708
[INFO] running `Command { std: "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" "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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d03c9a42c62a18dde149e8c1a49222ecd116900e4ef4ea05fcf8ae8bf8e6a9f
[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" "0d03c9a42c62a18dde149e8c1a49222ecd116900e4ef4ea05fcf8ae8bf8e6a9f", kill_on_drop: false }`
[INFO] [stderr]     Checking orbtk-utils v0.3.0-alpha1
[INFO] [stderr]     Checking sw-composite v0.7.6
[INFO] [stderr]     Checking spin_sleep v0.3.7
[INFO] [stderr]     Checking dces v0.2.0
[INFO] [stderr]    Compiling minifb v0.13.0
[INFO] [stderr]    Compiling cssparser v0.17.0
[INFO] [stderr]     Checking euclid v0.20.7
[INFO] [stderr]    Compiling orbtk-proc-macros v0.3.0-alpha1
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]     Checking orbtk-tree v0.3.0-alpha1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking lyon_geom v0.15.1
[INFO] [stderr]     Checking raqote v0.7.14
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking orbtk-css-engine v0.3.0-alpha1
[INFO] [stderr]     Checking image v0.22.5
[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] 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0d03c9a42c62a18dde149e8c1a49222ecd116900e4ef4ea05fcf8ae8bf8e6a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d03c9a42c62a18dde149e8c1a49222ecd116900e4ef4ea05fcf8ae8bf8e6a9f", kill_on_drop: false }`
[INFO] [stdout] 0d03c9a42c62a18dde149e8c1a49222ecd116900e4ef4ea05fcf8ae8bf8e6a9f