[INFO] updating cached repository https://github.com/anuditnagar/rustexp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89d4828ced26e01830380ee3ea21d55d32c7eff0
[INFO] testing anuditnagar/rustexp against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanuditnagar%2Frustexp" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anuditnagar/rustexp on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f1f80aa00d51c5500f0c3339dcbd3b23d3df775c57efa15f9196e392209e96d
[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" "7f1f80aa00d51c5500f0c3339dcbd3b23d3df775c57efa15f9196e392209e96d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f1f80aa00d51c5500f0c3339dcbd3b23d3df775c57efa15f9196e392209e96d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f1f80aa00d51c5500f0c3339dcbd3b23d3df775c57efa15f9196e392209e96d", kill_on_drop: false }`
[INFO] [stdout] 7f1f80aa00d51c5500f0c3339dcbd3b23d3df775c57efa15f9196e392209e96d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32c295da64300199d9134655fdfdd88e2998a144c1fac1037b2736ec2a96798a
[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" "32c295da64300199d9134655fdfdd88e2998a144c1fac1037b2736ec2a96798a", kill_on_drop: false }`
[INFO] [stderr]    Compiling elapsed v0.1.2
[INFO] [stderr]    Compiling linecount v0.1.0
[INFO] [stderr]    Compiling 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "32c295da64300199d9134655fdfdd88e2998a144c1fac1037b2736ec2a96798a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c295da64300199d9134655fdfdd88e2998a144c1fac1037b2736ec2a96798a", kill_on_drop: false }`
[INFO] [stdout] 32c295da64300199d9134655fdfdd88e2998a144c1fac1037b2736ec2a96798a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b79d80c5a3ef821ce30aa66fd9e59f296101596528c088eb75ef8b443276a613
[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" "b79d80c5a3ef821ce30aa66fd9e59f296101596528c088eb75ef8b443276a613", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b79d80c5a3ef821ce30aa66fd9e59f296101596528c088eb75ef8b443276a613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b79d80c5a3ef821ce30aa66fd9e59f296101596528c088eb75ef8b443276a613", kill_on_drop: false }`
[INFO] [stdout] b79d80c5a3ef821ce30aa66fd9e59f296101596528c088eb75ef8b443276a613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a68a963cf9ac723f5ae69e3642f818ffc6d10495947aeef40ace90555796996f
[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" "a68a963cf9ac723f5ae69e3642f818ffc6d10495947aeef40ace90555796996f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/bin/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `elapsed::measure_time`
[INFO] [stderr]   --> src/bin/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use elapsed::measure_time;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/bin/main.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let path = Path::new("lab.csv");
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cnt_lines`
[INFO] [stderr]   --> src/bin/main.rs:64:4
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn cnt_lines(path: &Path) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_line_at`
[INFO] [stderr]   --> src/bin/main.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn get_line_at(path: &Path, line_num: usize) -> Result<String, Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dup`
[INFO] [stderr]   --> src/bin/main.rs:76:4
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn dup(path: &Path){
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rep`
[INFO] [stderr]   --> src/bin/main.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn rep(path: &Path){
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_line`
[INFO] [stderr]   --> src/bin/main.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn add_line(line : &String){
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/main-c3a8fcd2eb5c4a1b
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-74dad0c339892d7f
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a68a963cf9ac723f5ae69e3642f818ffc6d10495947aeef40ace90555796996f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a68a963cf9ac723f5ae69e3642f818ffc6d10495947aeef40ace90555796996f", kill_on_drop: false }`
[INFO] [stdout] a68a963cf9ac723f5ae69e3642f818ffc6d10495947aeef40ace90555796996f