[INFO] cloning repository https://github.com/shika-blyat/math-eval2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shika-blyat/math-eval2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshika-blyat%2Fmath-eval2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshika-blyat%2Fmath-eval2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85cacc8fad3d2d5db9a222900e6d0df04a6f8dd9
[INFO] testing shika-blyat/math-eval2 against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshika-blyat%2Fmath-eval2" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shika-blyat/math-eval2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shika-blyat/math-eval2
[INFO] finished tweaking git repo https://github.com/shika-blyat/math-eval2
[INFO] tweaked toml for git repo https://github.com/shika-blyat/math-eval2 written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/shika-blyat/math-eval2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a74c1440f96b557f97990bea69241a91032143e1cb6ee5abf9c5ec57fd57e42
[INFO] running `Command { std: "docker" "start" "-a" "6a74c1440f96b557f97990bea69241a91032143e1cb6ee5abf9c5ec57fd57e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a74c1440f96b557f97990bea69241a91032143e1cb6ee5abf9c5ec57fd57e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a74c1440f96b557f97990bea69241a91032143e1cb6ee5abf9c5ec57fd57e42", kill_on_drop: false }`
[INFO] [stdout] 6a74c1440f96b557f97990bea69241a91032143e1cb6ee5abf9c5ec57fd57e42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0578087a16e85096af5c871ef95fe18ad2991e0cc4f9d3a3e88193328f4ace0f
[INFO] running `Command { std: "docker" "start" "-a" "0578087a16e85096af5c871ef95fe18ad2991e0cc4f9d3a3e88193328f4ace0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling math-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_error_matching)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(or_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Overflow` found for enum `IntErrorKind` in the current scope
[INFO] [stdout]   --> src/lexer.rs:64:31
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 IntErrorKind::Overflow => Err(Error {
[INFO] [stdout]    |                               ^^^^^^^^ variant or associated item not found in `IntErrorKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Underflow` found for enum `IntErrorKind` in the current scope
[INFO] [stdout]   --> src/lexer.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 IntErrorKind::Underflow => Err(Error {
[INFO] [stdout]    |                               ^^^^^^^^^ variant or associated item not found in `IntErrorKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math-interpreter` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "0578087a16e85096af5c871ef95fe18ad2991e0cc4f9d3a3e88193328f4ace0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0578087a16e85096af5c871ef95fe18ad2991e0cc4f9d3a3e88193328f4ace0f", kill_on_drop: false }`
[INFO] [stdout] 0578087a16e85096af5c871ef95fe18ad2991e0cc4f9d3a3e88193328f4ace0f
