[INFO] cloning repository https://github.com/thebapi/rust_minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thebapi/rust_minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebapi%2Frust_minigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebapi%2Frust_minigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab7d5c59ca430eaf0cca14debbd7eaaa755d284d
[INFO] testing thebapi/rust_minigrep against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebapi%2Frust_minigrep" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thebapi/rust_minigrep on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thebapi/rust_minigrep
[INFO] finished tweaking git repo https://github.com/thebapi/rust_minigrep
[INFO] tweaked toml for git repo https://github.com/thebapi/rust_minigrep written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/thebapi/rust_minigrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 288069ca7180645e9a723e0e9e61e27fbbf6aaaedc2ac4d7e91a0258ba2fd20f
[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" "288069ca7180645e9a723e0e9e61e27fbbf6aaaedc2ac4d7e91a0258ba2fd20f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "288069ca7180645e9a723e0e9e61e27fbbf6aaaedc2ac4d7e91a0258ba2fd20f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "288069ca7180645e9a723e0e9e61e27fbbf6aaaedc2ac4d7e91a0258ba2fd20f", kill_on_drop: false }`
[INFO] [stdout] 288069ca7180645e9a723e0e9e61e27fbbf6aaaedc2ac4d7e91a0258ba2fd20f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ecaed23b90ed4fa9e0bd74ffced715df28ca63c70613c2db3ab1311adb84fc9
[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" "6ecaed23b90ed4fa9e0bd74ffced715df28ca63c70613c2db3ab1311adb84fc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if (line.to_lowercase().contains(&query)) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run (config: Config) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "6ecaed23b90ed4fa9e0bd74ffced715df28ca63c70613c2db3ab1311adb84fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ecaed23b90ed4fa9e0bd74ffced715df28ca63c70613c2db3ab1311adb84fc9", kill_on_drop: false }`
[INFO] [stdout] 6ecaed23b90ed4fa9e0bd74ffced715df28ca63c70613c2db3ab1311adb84fc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6ef4ae802ffd79ec72085c6aaa135fbc013a7a7828c62a0f30d21ee65201e57
[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" "d6ef4ae802ffd79ec72085c6aaa135fbc013a7a7828c62a0f30d21ee65201e57", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if (line.to_lowercase().contains(&query)) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust_minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run (config: Config) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |             if (line.to_lowercase().contains(&query)) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run (config: Config) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "d6ef4ae802ffd79ec72085c6aaa135fbc013a7a7828c62a0f30d21ee65201e57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6ef4ae802ffd79ec72085c6aaa135fbc013a7a7828c62a0f30d21ee65201e57", kill_on_drop: false }`
[INFO] [stdout] d6ef4ae802ffd79ec72085c6aaa135fbc013a7a7828c62a0f30d21ee65201e57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 989c75ec5b7c8353c170ff49dc855776790072a4b1ce45971bdd1adcb958d832
[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" "989c75ec5b7c8353c170ff49dc855776790072a4b1ce45971bdd1adcb958d832", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/lib.rs:38:16
[INFO] [stderr]    |
[INFO] [stderr] 38 |             if (line.to_lowercase().contains(&query)) {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/lib.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn run (config: Config) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/lib.rs:38:16
[INFO] [stderr]    |
[INFO] [stderr] 38 |             if (line.to_lowercase().contains(&query)) {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/lib.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn run (config: Config) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_minigrep-108a6aa0b8370a1e
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_minigrep-7147b8baf8909443
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_minigrep
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:38:16
[INFO] [stderr]    |
[INFO] [stderr] 38 |             if (line.to_lowercase().contains(&query)) {
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "989c75ec5b7c8353c170ff49dc855776790072a4b1ce45971bdd1adcb958d832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "989c75ec5b7c8353c170ff49dc855776790072a4b1ce45971bdd1adcb958d832", kill_on_drop: false }`
[INFO] [stdout] 989c75ec5b7c8353c170ff49dc855776790072a4b1ce45971bdd1adcb958d832