[INFO] cloning repository https://github.com/karaketir16/rust-basic-grep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/karaketir16/rust-basic-grep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaraketir16%2Frust-basic-grep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaraketir16%2Frust-basic-grep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1b862d9b9759ac7290ddedf4ee6f1d836925600
[INFO] testing karaketir16/rust-basic-grep against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaraketir16%2Frust-basic-grep" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/karaketir16/rust-basic-grep 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/karaketir16/rust-basic-grep
[INFO] finished tweaking git repo https://github.com/karaketir16/rust-basic-grep
[INFO] tweaked toml for git repo https://github.com/karaketir16/rust-basic-grep written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/karaketir16/rust-basic-grep 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] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 640a6d9463a2005c57c3d3d0780053d708aa7ed12d84775960e1a934252edbe3
[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" "640a6d9463a2005c57c3d3d0780053d708aa7ed12d84775960e1a934252edbe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "640a6d9463a2005c57c3d3d0780053d708aa7ed12d84775960e1a934252edbe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "640a6d9463a2005c57c3d3d0780053d708aa7ed12d84775960e1a934252edbe3", kill_on_drop: false }`
[INFO] [stdout] 640a6d9463a2005c57c3d3d0780053d708aa7ed12d84775960e1a934252edbe3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 51c7ef35321c0cef660d0aff82da666f7b61367d75cdccc913595accefa4176a
[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" "51c7ef35321c0cef660d0aff82da666f7b61367d75cdccc913595accefa4176a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling myGrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `myGrep` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `my_grep`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `lineNumber` should have a snake case name
[INFO] [stdout]   --> src/main.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 |             for (lineNumber, line) in lines.enumerate() {
[INFO] [stdout]    |                  ^^^^^^^^^^ help: convert the identifier to snake case: `line_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.90s
[INFO] running `Command { std: "docker" "inspect" "51c7ef35321c0cef660d0aff82da666f7b61367d75cdccc913595accefa4176a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c7ef35321c0cef660d0aff82da666f7b61367d75cdccc913595accefa4176a", kill_on_drop: false }`
[INFO] [stdout] 51c7ef35321c0cef660d0aff82da666f7b61367d75cdccc913595accefa4176a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 5b68ceeb549addc2b81404139ada4821a075406575af18ea9275dd890a3a8e13
[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" "5b68ceeb549addc2b81404139ada4821a075406575af18ea9275dd890a3a8e13", kill_on_drop: false }`
[INFO] [stderr]    Compiling myGrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `myGrep` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `my_grep`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `lineNumber` should have a snake case name
[INFO] [stdout]   --> src/main.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 |             for (lineNumber, line) in lines.enumerate() {
[INFO] [stdout]    |                  ^^^^^^^^^^ help: convert the identifier to snake case: `line_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "5b68ceeb549addc2b81404139ada4821a075406575af18ea9275dd890a3a8e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b68ceeb549addc2b81404139ada4821a075406575af18ea9275dd890a3a8e13", kill_on_drop: false }`
[INFO] [stdout] 5b68ceeb549addc2b81404139ada4821a075406575af18ea9275dd890a3a8e13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 52f675f4f569d97153cb5050aa4a1ffb0b82fbc87ed16da2f8a7af8c08a9e2bd
[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" "52f675f4f569d97153cb5050aa4a1ffb0b82fbc87ed16da2f8a7af8c08a9e2bd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: crate `myGrep` should have a snake case name
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]   = help: convert the identifier to snake case: `my_grep`
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: variable `lineNumber` should have a snake case name
[INFO] [stderr]   --> src/main.rs:16:18
[INFO] [stderr]    |
[INFO] [stderr] 16 |             for (lineNumber, line) in lines.enumerate() {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: convert the identifier to snake case: `line_number`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/myGrep-3b8ee88ce9d8a9c1
[INFO] running `Command { std: "docker" "inspect" "52f675f4f569d97153cb5050aa4a1ffb0b82fbc87ed16da2f8a7af8c08a9e2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f675f4f569d97153cb5050aa4a1ffb0b82fbc87ed16da2f8a7af8c08a9e2bd", kill_on_drop: false }`
[INFO] [stdout] 52f675f4f569d97153cb5050aa4a1ffb0b82fbc87ed16da2f8a7af8c08a9e2bd