[INFO] updating cached repository https://github.com/josephalfredo-okta/markov_chain
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c32491cef60c74c3d8cea7b0598b7f43d7e71f7
[INFO] testing josephalfredo-okta/markov_chain against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosephalfredo-okta%2Fmarkov_chain" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/josephalfredo-okta/markov_chain on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/josephalfredo-okta/markov_chain
[INFO] finished tweaking git repo https://github.com/josephalfredo-okta/markov_chain
[INFO] tweaked toml for git repo https://github.com/josephalfredo-okta/markov_chain written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/josephalfredo-okta/markov_chain already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stdout] 230d5dedf08a7ca88b82cbf65c77002732cf78f77ecccef547060ef852cff962
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "230d5dedf08a7ca88b82cbf65c77002732cf78f77ecccef547060ef852cff962"`
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling markovchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/file.rs:5:45
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn parse_file(filepath: &str) -> Result<(String), Box<dyn Error>> {
[INFO] [stderr]   |                                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.09s
[INFO] running `"docker" "inspect" "230d5dedf08a7ca88b82cbf65c77002732cf78f77ecccef547060ef852cff962"`
[INFO] running `"docker" "rm" "-f" "230d5dedf08a7ca88b82cbf65c77002732cf78f77ecccef547060ef852cff962"`
[INFO] [stdout] 230d5dedf08a7ca88b82cbf65c77002732cf78f77ecccef547060ef852cff962
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 76f298490377ab878870416d0ec2911f8857cc5587fe2df9701235d6863c3348
[INFO] running `"docker" "start" "-a" "76f298490377ab878870416d0ec2911f8857cc5587fe2df9701235d6863c3348"`
[INFO] [stderr]    Compiling markovchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/file.rs:5:45
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn parse_file(filepath: &str) -> Result<(String), Box<dyn Error>> {
[INFO] [stderr]   |                                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "76f298490377ab878870416d0ec2911f8857cc5587fe2df9701235d6863c3348"`
[INFO] running `"docker" "rm" "-f" "76f298490377ab878870416d0ec2911f8857cc5587fe2df9701235d6863c3348"`
[INFO] [stdout] 76f298490377ab878870416d0ec2911f8857cc5587fe2df9701235d6863c3348
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 99f27b86575a6a03028d7bfc12aa6e876f43a59b2abcb6c5735d11a8901bdbd9
[INFO] running `"docker" "start" "-a" "99f27b86575a6a03028d7bfc12aa6e876f43a59b2abcb6c5735d11a8901bdbd9"`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/file.rs:5:45
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn parse_file(filepath: &str) -> Result<(String), Box<dyn Error>> {
[INFO] [stderr]   |                                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/markovchain-eb0ae261a2c3e130
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::should_create_chain ... ok
[INFO] [stdout] test tests::benchmark ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/markovchain-383b0c1ce994df99
[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] [stderr]    Doc-tests markovchain
[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 `"docker" "inspect" "99f27b86575a6a03028d7bfc12aa6e876f43a59b2abcb6c5735d11a8901bdbd9"`
[INFO] running `"docker" "rm" "-f" "99f27b86575a6a03028d7bfc12aa6e876f43a59b2abcb6c5735d11a8901bdbd9"`
[INFO] [stdout] 99f27b86575a6a03028d7bfc12aa6e876f43a59b2abcb6c5735d11a8901bdbd9