[INFO] cloning repository https://github.com/python357-1/four-magic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/python357-1/four-magic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpython357-1%2Ffour-magic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpython357-1%2Ffour-magic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86d6beae474f14bdb719e3ba1acb0c1a020c39c5
[INFO] testing python357-1/four-magic against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpython357-1%2Ffour-magic" "/workspace/builds/worker-59/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-59/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/python357-1/four-magic 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/python357-1/four-magic
[INFO] finished tweaking git repo https://github.com/python357-1/four-magic
[INFO] tweaked toml for git repo https://github.com/python357-1/four-magic written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] crate git repo https://github.com/python357-1/four-magic 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 text_io v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] 9f3fe25d39629cd11e6d24a4b498e17cacd8fa11f42331200930b4598bd20063
[INFO] running `Command { std: "docker" "start" "-a" "9f3fe25d39629cd11e6d24a4b498e17cacd8fa11f42331200930b4598bd20063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f3fe25d39629cd11e6d24a4b498e17cacd8fa11f42331200930b4598bd20063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f3fe25d39629cd11e6d24a4b498e17cacd8fa11f42331200930b4598bd20063", kill_on_drop: false }`
[INFO] [stdout] 9f3fe25d39629cd11e6d24a4b498e17cacd8fa11f42331200930b4598bd20063
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] 48deabd7e176bbfc6c71b3b7b722c2fb44b1fed3e556c33f7548358b14da27b3
[INFO] running `Command { std: "docker" "start" "-a" "48deabd7e176bbfc6c71b3b7b722c2fb44b1fed3e556c33f7548358b14da27b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling text_io v0.1.8
[INFO] [stderr]    Compiling four-magic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: comparison operators cannot be chained
[INFO] [stdout]  --> src/main.rs:9:42
[INFO] [stdout]   |
[INFO] [stdout] 9 |     while encoded_number.chars().count() != 4 >{
[INFO] [stdout]   |                                          ^^   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `four-magic` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "48deabd7e176bbfc6c71b3b7b722c2fb44b1fed3e556c33f7548358b14da27b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48deabd7e176bbfc6c71b3b7b722c2fb44b1fed3e556c33f7548358b14da27b3", kill_on_drop: false }`
[INFO] [stdout] 48deabd7e176bbfc6c71b3b7b722c2fb44b1fed3e556c33f7548358b14da27b3