[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] testing anuditnagar/rustexp against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanuditnagar%2Frustexp" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anuditnagar/rustexp on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-1/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b74e2ae0e49159ce4d9920e6288ba741c2c26393bf6502d182f39b1a1ffdfc8c
[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" "b74e2ae0e49159ce4d9920e6288ba741c2c26393bf6502d182f39b1a1ffdfc8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b74e2ae0e49159ce4d9920e6288ba741c2c26393bf6502d182f39b1a1ffdfc8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b74e2ae0e49159ce4d9920e6288ba741c2c26393bf6502d182f39b1a1ffdfc8c", kill_on_drop: false }`
[INFO] [stdout] b74e2ae0e49159ce4d9920e6288ba741c2c26393bf6502d182f39b1a1ffdfc8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] 99c56a8a16effd6904889ab529166921f70f2d66a6f55469459bc5359081eb44
[INFO] running `Command { std: "docker" "start" "-a" "99c56a8a16effd6904889ab529166921f70f2d66a6f55469459bc5359081eb44", kill_on_drop: false }`
[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 1.81s
[INFO] running `Command { std: "docker" "inspect" "99c56a8a16effd6904889ab529166921f70f2d66a6f55469459bc5359081eb44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99c56a8a16effd6904889ab529166921f70f2d66a6f55469459bc5359081eb44", kill_on_drop: false }`
[INFO] [stdout] 99c56a8a16effd6904889ab529166921f70f2d66a6f55469459bc5359081eb44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 2ead66895289f8a3be5f40cdc5ca8c89e56433236502d42b7aded820c05e16b8
[INFO] running `Command { std: "docker" "start" "-a" "2ead66895289f8a3be5f40cdc5ca8c89e56433236502d42b7aded820c05e16b8", kill_on_drop: false }`
[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 test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "2ead66895289f8a3be5f40cdc5ca8c89e56433236502d42b7aded820c05e16b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ead66895289f8a3be5f40cdc5ca8c89e56433236502d42b7aded820c05e16b8", kill_on_drop: false }`
[INFO] [stdout] 2ead66895289f8a3be5f40cdc5ca8c89e56433236502d42b7aded820c05e16b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74600f8ca41280b3e9a6e3a3b8f43f574073383f27b27fd53c271c8c831e7442
[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" "74600f8ca41280b3e9a6e3a3b8f43f574073383f27b27fd53c271c8c831e7442", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/bin/main.rs:7:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 7 | use std::io::prelude::*;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] warning: unused import: `elapsed::measure_time`
[INFO] [stdout] 
[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 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/main-4837ba6cccfb3894
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-56682790a40d026d
[INFO] running `Command { std: "docker" "inspect" "74600f8ca41280b3e9a6e3a3b8f43f574073383f27b27fd53c271c8c831e7442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74600f8ca41280b3e9a6e3a3b8f43f574073383f27b27fd53c271c8c831e7442", kill_on_drop: false }`
[INFO] [stdout] 74600f8ca41280b3e9a6e3a3b8f43f574073383f27b27fd53c271c8c831e7442