[INFO] cloning repository https://github.com/crazymerlyn/kilo-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crazymerlyn/kilo-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrazymerlyn%2Fkilo-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrazymerlyn%2Fkilo-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 320b83097c84c25c45f702907d9fb7369e5579fa
[INFO] testing crazymerlyn/kilo-rs 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%2Fcrazymerlyn%2Fkilo-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crazymerlyn/kilo-rs 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/crazymerlyn/kilo-rs
[INFO] finished tweaking git repo https://github.com/crazymerlyn/kilo-rs
[INFO] tweaked toml for git repo https://github.com/crazymerlyn/kilo-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/crazymerlyn/kilo-rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termsize v0.1.4
[INFO] [stderr]   Downloaded atty v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] d60ced280531ec40a8426789e8961180af263682a37bb973adfca9b8fb2b565d
[INFO] running `Command { std: "docker" "start" "-a" "d60ced280531ec40a8426789e8961180af263682a37bb973adfca9b8fb2b565d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d60ced280531ec40a8426789e8961180af263682a37bb973adfca9b8fb2b565d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d60ced280531ec40a8426789e8961180af263682a37bb973adfca9b8fb2b565d", kill_on_drop: false }`
[INFO] [stdout] d60ced280531ec40a8426789e8961180af263682a37bb973adfca9b8fb2b565d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] de45c86d4949ae326edadf1b1fdcedfe015a7036f9509fecda2b92d3e0888ef6
[INFO] running `Command { std: "docker" "start" "-a" "de45c86d4949ae326edadf1b1fdcedfe015a7036f9509fecda2b92d3e0888ef6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.26
[INFO] [stderr]    Compiling atty v0.1.2
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling termsize v0.1.4
[INFO] [stderr]    Compiling kilo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:281:60
[INFO] [stdout]     |
[INFO] [stdout] 281 |                     format!("Can't save! I/O error: {}", e.description())
[INFO] [stdout]     |                                                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:518:13
[INFO] [stdout]     |
[INFO] [stdout] 518 |         let mut row = &mut self.rows[self.cy];
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:536:17
[INFO] [stdout]     |
[INFO] [stdout] 536 |             let mut row = &mut self.rows[self.cy];
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `self.rows` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> src/main.rs:540:40
[INFO] [stdout]     |
[INFO] [stdout] 540 |             self.rows[self.cy - 1] += &self.rows[self.cy].clone();
[INFO] [stdout]     |             ---------------------------^^^^^^^^^-----------------
[INFO] [stdout]     |             |                          |
[INFO] [stdout]     |             |                          immutable borrow occurs here
[INFO] [stdout]     |             mutable borrow occurs here
[INFO] [stdout]     |             mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kilo` due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "de45c86d4949ae326edadf1b1fdcedfe015a7036f9509fecda2b92d3e0888ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de45c86d4949ae326edadf1b1fdcedfe015a7036f9509fecda2b92d3e0888ef6", kill_on_drop: false }`
[INFO] [stdout] de45c86d4949ae326edadf1b1fdcedfe015a7036f9509fecda2b92d3e0888ef6
