[INFO] cloning repository https://github.com/sgbasaraner/minart
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sgbasaraner/minart" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgbasaraner%2Fminart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgbasaraner%2Fminart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97eead494eb838c58d86c2739f05e300e1ce9762
[INFO] checking sgbasaraner/minart against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgbasaraner%2Fminart" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sgbasaraner/minart on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sgbasaraner/minart
[INFO] finished tweaking git repo https://github.com/sgbasaraner/minart
[INFO] tweaked toml for git repo https://github.com/sgbasaraner/minart written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sgbasaraner/minart already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] feaabd966150ac9bf1c1779995c39cfb737d8fa9832cac30c4dfd0828075b23f
[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" "feaabd966150ac9bf1c1779995c39cfb737d8fa9832cac30c4dfd0828075b23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feaabd966150ac9bf1c1779995c39cfb737d8fa9832cac30c4dfd0828075b23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feaabd966150ac9bf1c1779995c39cfb737d8fa9832cac30c4dfd0828075b23f", kill_on_drop: false }`
[INFO] [stdout] feaabd966150ac9bf1c1779995c39cfb737d8fa9832cac30c4dfd0828075b23f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 443c4b2b3de1883e13529bc43b87eebd0fd31676932d6ba12c94ae158c38c17d
[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" "443c4b2b3de1883e13529bc43b87eebd0fd31676932d6ba12c94ae158c38c17d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking minart v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:25:87
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let file_splitted: Vec<String> = file.split(".").map(|s| s.to_string()).collect();;
[INFO] [stdout]    |                                                                                       ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:25:87
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let file_splitted: Vec<String> = file.split(".").map(|s| s.to_string()).collect();;
[INFO] [stdout]    |                                                                                       ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut output = match File::create(formatted_file_name) {
[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:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut output = match File::create(formatted_file_name) {
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.13s
[INFO] running `Command { std: "docker" "inspect" "443c4b2b3de1883e13529bc43b87eebd0fd31676932d6ba12c94ae158c38c17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "443c4b2b3de1883e13529bc43b87eebd0fd31676932d6ba12c94ae158c38c17d", kill_on_drop: false }`
[INFO] [stdout] 443c4b2b3de1883e13529bc43b87eebd0fd31676932d6ba12c94ae158c38c17d