[INFO] cloning repository https://github.com/matheusjean28/lightweight_rust_file_analiser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matheusjean28/lightweight_rust_file_analiser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatheusjean28%2Flightweight_rust_file_analiser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatheusjean28%2Flightweight_rust_file_analiser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3655ae7855916e7d58cc63ba64c17a3ee3393ca2
[INFO] building matheusjean28/lightweight_rust_file_analiser against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatheusjean28%2Flightweight_rust_file_analiser" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matheusjean28/lightweight_rust_file_analiser on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matheusjean28/lightweight_rust_file_analiser
[INFO] finished tweaking git repo https://github.com/matheusjean28/lightweight_rust_file_analiser
[INFO] tweaked toml for git repo https://github.com/matheusjean28/lightweight_rust_file_analiser written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/matheusjean28/lightweight_rust_file_analiser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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
[ERROR] error running command: no output for 300 seconds
[INFO] building matheusjean28/lightweight_rust_file_analiser against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatheusjean28%2Flightweight_rust_file_analiser" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matheusjean28/lightweight_rust_file_analiser on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matheusjean28/lightweight_rust_file_analiser
[INFO] finished tweaking git repo https://github.com/matheusjean28/lightweight_rust_file_analiser
[INFO] tweaked toml for git repo https://github.com/matheusjean28/lightweight_rust_file_analiser written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/matheusjean28/lightweight_rust_file_analiser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c797c791f3eea4c267683bfae05ebab48c5cf6b8c53acd2cdf5479373c3da9b
[INFO] running `Command { std: "docker" "start" "-a" "4c797c791f3eea4c267683bfae05ebab48c5cf6b8c53acd2cdf5479373c3da9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c797c791f3eea4c267683bfae05ebab48c5cf6b8c53acd2cdf5479373c3da9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c797c791f3eea4c267683bfae05ebab48c5cf6b8c53acd2cdf5479373c3da9b", kill_on_drop: false }`
[INFO] [stdout] 4c797c791f3eea4c267683bfae05ebab48c5cf6b8c53acd2cdf5479373c3da9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2befde4ce947107acb25fadec2bbd57bce06cdac98d8f32e456eb8268dedbbb4
[INFO] running `Command { std: "docker" "start" "-a" "2befde4ce947107acb25fadec2bbd57bce06cdac98d8f32e456eb8268dedbbb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling readFile v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `self`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufWriter`
[INFO] [stdout]  --> src/Utils/read_line_buff.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufRead, BufReader, BufWriter, Write};
[INFO] [stdout]   |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/Utils/read_line_buff.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/Utils/read_line_buff.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | ) -> io::Result<(File)> {
[INFO] [stdout]   |                 ^    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 - ) -> io::Result<(File)> {
[INFO] [stdout] 8 + ) -> io::Result<File> {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `read_file` and `save_file`
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use Utils::{read_file, read_line_buff, save_file};
[INFO] [stdout]    |             ^^^^^^^^^                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/Utils/read_line_buff.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let lines: Vec<String> = Vec::new();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `content`
[INFO] [stdout]   --> src/Utils/save_file.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut content = String::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text_to_write`
[INFO] [stdout]   --> src/Utils/save_file.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let text_to_write = "teste,teste";
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_text_to_write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Utils/save_file.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut content = String::new();
[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: function `read_file_content` is never used
[INFO] [stdout]  --> src/Utils/read_file.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_file_content(file_path: &str) -> io::Result<String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `save_file` is never used
[INFO] [stdout]  --> src/Utils/save_file.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn save_file(_content: &String) -> io::Result<File> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Utils` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | mod Utils {
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case (notice the capitalization): `utils`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "2befde4ce947107acb25fadec2bbd57bce06cdac98d8f32e456eb8268dedbbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2befde4ce947107acb25fadec2bbd57bce06cdac98d8f32e456eb8268dedbbb4", kill_on_drop: false }`
[INFO] [stdout] 2befde4ce947107acb25fadec2bbd57bce06cdac98d8f32e456eb8268dedbbb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78e896d80735356dd5c48c6697b1a1fd709b88ff2cc6dabfb9628013fa4c4b67
[INFO] running `Command { std: "docker" "start" "-a" "78e896d80735356dd5c48c6697b1a1fd709b88ff2cc6dabfb9628013fa4c4b67", kill_on_drop: false }`
[INFO] [stderr]    Compiling readFile v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `self`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufWriter`
[INFO] [stdout]  --> src/Utils/read_line_buff.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, BufRead, BufReader, BufWriter, Write};
[INFO] [stdout]   |                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::vec`
[INFO] [stdout]  --> src/Utils/read_line_buff.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::vec;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/Utils/read_line_buff.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | ) -> io::Result<(File)> {
[INFO] [stdout]   |                 ^    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 - ) -> io::Result<(File)> {
[INFO] [stdout] 8 + ) -> io::Result<File> {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `read_file` and `save_file`
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use Utils::{read_file, read_line_buff, save_file};
[INFO] [stdout]    |             ^^^^^^^^^                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]   --> src/Utils/read_line_buff.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let lines: Vec<String> = Vec::new();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_lines`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `content`
[INFO] [stdout]   --> src/Utils/save_file.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut content = String::new();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_content`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text_to_write`
[INFO] [stdout]   --> src/Utils/save_file.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let text_to_write = "teste,teste";
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_text_to_write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/Utils/save_file.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut content = String::new();
[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: function `read_file_content` is never used
[INFO] [stdout]  --> src/Utils/read_file.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_file_content(file_path: &str) -> io::Result<String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `save_file` is never used
[INFO] [stdout]  --> src/Utils/save_file.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn save_file(_content: &String) -> io::Result<File> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Utils` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | mod Utils {
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case (notice the capitalization): `utils`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "78e896d80735356dd5c48c6697b1a1fd709b88ff2cc6dabfb9628013fa4c4b67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e896d80735356dd5c48c6697b1a1fd709b88ff2cc6dabfb9628013fa4c4b67", kill_on_drop: false }`
[INFO] [stdout] 78e896d80735356dd5c48c6697b1a1fd709b88ff2cc6dabfb9628013fa4c4b67