[INFO] cloning repository https://github.com/kirhgoff/fractazoid
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kirhgoff/fractazoid" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirhgoff%2Ffractazoid", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirhgoff%2Ffractazoid'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c32f86a21d89ade525316ed5a04c941bf383095c
[INFO] checking kirhgoff/fractazoid against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirhgoff%2Ffractazoid" "/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/kirhgoff/fractazoid on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kirhgoff/fractazoid
[INFO] finished tweaking git repo https://github.com/kirhgoff/fractazoid
[INFO] tweaked toml for git repo https://github.com/kirhgoff/fractazoid written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/kirhgoff/fractazoid already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] b0f8e3b38adcbe1c8a6d965d6d674b86857e34c080a5e8fcedca9abf78af91df
[INFO] running `Command { std: "docker" "start" "-a" "b0f8e3b38adcbe1c8a6d965d6d674b86857e34c080a5e8fcedca9abf78af91df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0f8e3b38adcbe1c8a6d965d6d674b86857e34c080a5e8fcedca9abf78af91df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f8e3b38adcbe1c8a6d965d6d674b86857e34c080a5e8fcedca9abf78af91df", kill_on_drop: false }`
[INFO] [stdout] b0f8e3b38adcbe1c8a6d965d6d674b86857e34c080a5e8fcedca9abf78af91df
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 0e652631999178146263007a507b804aa6c34ed47a3bae57689fd90ffb733956
[INFO] running `Command { std: "docker" "start" "-a" "0e652631999178146263007a507b804aa6c34ed47a3bae57689fd90ffb733956", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking fractazoid v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/renderer.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 | /             format!(
[INFO] [stdout] 39 | |                 "Invalid iteration: {} allowed max: {}",
[INFO] [stdout] 40 | |                 iteration, self.max_iterations
[INFO] [stdout] 41 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 38 |             
[INFO] [stdout] 39 |                 "Invalid iteration: {} allowed max: {}",
[INFO] [stdout] 40 |                 iteration, self.max_iterations
[INFO] [stdout] 41 |             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/renderer.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             format!("Index {} should be less than {}", index, self.chars_count)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 46 |             "Index {} should be less than {}", index, self.chars_count
[INFO] [stdout]    |            --                                                        --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/renderer.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 | /             format!(
[INFO] [stdout] 39 | |                 "Invalid iteration: {} allowed max: {}",
[INFO] [stdout] 40 | |                 iteration, self.max_iterations
[INFO] [stdout] 41 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 38 |             
[INFO] [stdout] 39 |                 "Invalid iteration: {} allowed max: {}",
[INFO] [stdout] 40 |                 iteration, self.max_iterations
[INFO] [stdout] 41 |             
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/renderer.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             format!("Index {} should be less than {}", index, self.chars_count)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 46 |             "Index {} should be less than {}", index, self.chars_count
[INFO] [stdout]    |            --                                                        --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
[INFO] running `Command { std: "docker" "inspect" "0e652631999178146263007a507b804aa6c34ed47a3bae57689fd90ffb733956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e652631999178146263007a507b804aa6c34ed47a3bae57689fd90ffb733956", kill_on_drop: false }`
[INFO] [stdout] 0e652631999178146263007a507b804aa6c34ed47a3bae57689fd90ffb733956