[INFO] cloning repository https://github.com/anuditnagar/rustexp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anuditnagar/rustexp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanuditnagar%2Frustexp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanuditnagar%2Frustexp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89d4828ced26e01830380ee3ea21d55d32c7eff0
[INFO] checking anuditnagar/rustexp against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanuditnagar%2Frustexp" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anuditnagar/rustexp on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anuditnagar/rustexp
[INFO] finished tweaking git repo https://github.com/anuditnagar/rustexp
[INFO] tweaked toml for git repo https://github.com/anuditnagar/rustexp written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/anuditnagar/rustexp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linecount v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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] b8766c366cd17959fd107bc059704dddf5fccc6560da2b5bc76b0ab5948e21e5
[INFO] running `Command { std: "docker" "start" "-a" "b8766c366cd17959fd107bc059704dddf5fccc6560da2b5bc76b0ab5948e21e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8766c366cd17959fd107bc059704dddf5fccc6560da2b5bc76b0ab5948e21e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8766c366cd17959fd107bc059704dddf5fccc6560da2b5bc76b0ab5948e21e5", kill_on_drop: false }`
[INFO] [stdout] b8766c366cd17959fd107bc059704dddf5fccc6560da2b5bc76b0ab5948e21e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09426f63a6a8e9a20ddd705b5492f99563ace241343c5a0499680edeb529c972
[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" "09426f63a6a8e9a20ddd705b5492f99563ace241343c5a0499680edeb529c972", kill_on_drop: false }`
[INFO] [stderr]     Checking linecount v0.1.0
[INFO] [stderr]     Checking rustexp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/bin/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `elapsed::measure_time`
[INFO] [stdout]   --> src/bin/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use elapsed::measure_time;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/bin/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let path = Path::new("lab.csv");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cnt_lines`
[INFO] [stdout]   --> src/bin/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn cnt_lines(path: &Path) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_line_at`
[INFO] [stdout]   --> src/bin/main.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn get_line_at(path: &Path, line_num: usize) -> Result<String, Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dup`
[INFO] [stdout]   --> src/bin/main.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn dup(path: &Path){
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rep`
[INFO] [stdout]   --> src/bin/main.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn rep(path: &Path){
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_line`
[INFO] [stdout]   --> src/bin/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn add_line(line : &String){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/bin/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `elapsed::measure_time`
[INFO] [stdout]   --> src/bin/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use elapsed::measure_time;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/bin/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let path = Path::new("lab.csv");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cnt_lines`
[INFO] [stdout]   --> src/bin/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn cnt_lines(path: &Path) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_line_at`
[INFO] [stdout]   --> src/bin/main.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn get_line_at(path: &Path, line_num: usize) -> Result<String, Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dup`
[INFO] [stdout]   --> src/bin/main.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn dup(path: &Path){
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rep`
[INFO] [stdout]   --> src/bin/main.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn rep(path: &Path){
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_line`
[INFO] [stdout]   --> src/bin/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn add_line(line : &String){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "09426f63a6a8e9a20ddd705b5492f99563ace241343c5a0499680edeb529c972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09426f63a6a8e9a20ddd705b5492f99563ace241343c5a0499680edeb529c972", kill_on_drop: false }`
[INFO] [stdout] 09426f63a6a8e9a20ddd705b5492f99563ace241343c5a0499680edeb529c972