[INFO] cloning repository https://github.com/wizardwatch/solve_string
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wizardwatch/solve_string" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwizardwatch%2Fsolve_string", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwizardwatch%2Fsolve_string'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 706a9ce6d31ed57c80120d46be3f3fbb5ee54bf3
[INFO] testing wizardwatch/solve_string against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwizardwatch%2Fsolve_string" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wizardwatch/solve_string on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wizardwatch/solve_string
[INFO] finished tweaking git repo https://github.com/wizardwatch/solve_string
[INFO] tweaked toml for git repo https://github.com/wizardwatch/solve_string written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/wizardwatch/solve_string already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] 0cf13e7a276d8d819f6325b0532a7ad5097777200db51ac0360005f36abe9056
[INFO] running `Command { std: "docker" "start" "-a" "0cf13e7a276d8d819f6325b0532a7ad5097777200db51ac0360005f36abe9056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cf13e7a276d8d819f6325b0532a7ad5097777200db51ac0360005f36abe9056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cf13e7a276d8d819f6325b0532a7ad5097777200db51ac0360005f36abe9056", kill_on_drop: false }`
[INFO] [stdout] 0cf13e7a276d8d819f6325b0532a7ad5097777200db51ac0360005f36abe9056
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8864f2b9a253a3b77e4d02c1f84bbca29f26df54aa9252b503557991004cb5f
[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" "e8864f2b9a253a3b77e4d02c1f84bbca29f26df54aa9252b503557991004cb5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling solve_string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `main` has invalid return type `f32`
[INFO] [stdout]  --> src/main.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main(mut input: String) -> f32 {
[INFO] [stdout]   |                                   ^^^ `main` can only return types that implement `Termination`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0580]: `main` function has wrong type
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main(mut input: String) -> f32 {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ incorrect number of function parameters
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected fn pointer `fn() -> _`
[INFO] [stdout]              found fn pointer `fn(String) -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0580.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `solve_string`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e8864f2b9a253a3b77e4d02c1f84bbca29f26df54aa9252b503557991004cb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8864f2b9a253a3b77e4d02c1f84bbca29f26df54aa9252b503557991004cb5f", kill_on_drop: false }`
[INFO] [stdout] e8864f2b9a253a3b77e4d02c1f84bbca29f26df54aa9252b503557991004cb5f
