[INFO] cloning repository https://github.com/knknkn1162/minigrep_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/knknkn1162/minigrep_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknknkn1162%2Fminigrep_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknknkn1162%2Fminigrep_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 356bcdcd29ed0697af8f2ab4f34cd39301e0d0dc
[INFO] testing knknkn1162/minigrep_test against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknknkn1162%2Fminigrep_test" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/knknkn1162/minigrep_test on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/knknkn1162/minigrep_test
[INFO] finished tweaking git repo https://github.com/knknkn1162/minigrep_test
[INFO] tweaked toml for git repo https://github.com/knknkn1162/minigrep_test written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/knknkn1162/minigrep_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebaa8b60ab928b9e8cd78ec52b1a4935179b0048bab869b77b12c9a55d984569
[INFO] running `Command { std: "docker" "start" "-a" "ebaa8b60ab928b9e8cd78ec52b1a4935179b0048bab869b77b12c9a55d984569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebaa8b60ab928b9e8cd78ec52b1a4935179b0048bab869b77b12c9a55d984569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebaa8b60ab928b9e8cd78ec52b1a4935179b0048bab869b77b12c9a55d984569", kill_on_drop: false }`
[INFO] [stdout] ebaa8b60ab928b9e8cd78ec52b1a4935179b0048bab869b77b12c9a55d984569
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1da3bdaf6e60717eca045a5a9154ed6a024b3bf441bf6c2fd482481fb283968
[INFO] running `Command { std: "docker" "start" "-a" "c1da3bdaf6e60717eca045a5a9154ed6a024b3bf441bf6c2fd482481fb283968", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:6:46
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(config: Config) -> Result<(), Box<Error>>{
[INFO] [stdout]   |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     search(&config.query, &contents, !config.case_sensitive).into_iter()
[INFO] [stdout] 14 | |         .inspect(|&line| println!("{}", line)).collect::<Vec<_>>();
[INFO] [stdout]    | |___________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "c1da3bdaf6e60717eca045a5a9154ed6a024b3bf441bf6c2fd482481fb283968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1da3bdaf6e60717eca045a5a9154ed6a024b3bf441bf6c2fd482481fb283968", kill_on_drop: false }`
[INFO] [stdout] c1da3bdaf6e60717eca045a5a9154ed6a024b3bf441bf6c2fd482481fb283968
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d9ddc9319c39a6295755f7bdc9d524d0973c235e1edf2a65f294a97e66b2126
[INFO] running `Command { std: "docker" "start" "-a" "9d9ddc9319c39a6295755f7bdc9d524d0973c235e1edf2a65f294a97e66b2126", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:6:46
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(config: Config) -> Result<(), Box<Error>>{
[INFO] [stdout]   |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     search(&config.query, &contents, !config.case_sensitive).into_iter()
[INFO] [stdout] 14 | |         .inspect(|&line| println!("{}", line)).collect::<Vec<_>>();
[INFO] [stdout]    | |___________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:6:46
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(config: Config) -> Result<(), Box<Error>>{
[INFO] [stdout]   |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     search(&config.query, &contents, !config.case_sensitive).into_iter()
[INFO] [stdout] 14 | |         .inspect(|&line| println!("{}", line)).collect::<Vec<_>>();
[INFO] [stdout]    | |___________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "9d9ddc9319c39a6295755f7bdc9d524d0973c235e1edf2a65f294a97e66b2126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d9ddc9319c39a6295755f7bdc9d524d0973c235e1edf2a65f294a97e66b2126", kill_on_drop: false }`
[INFO] [stdout] 9d9ddc9319c39a6295755f7bdc9d524d0973c235e1edf2a65f294a97e66b2126
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 278bee922bb6fbf40687c64ba32e76498052d56b49f35e4d54bb8b1c28ce50de
[INFO] running `Command { std: "docker" "start" "-a" "278bee922bb6fbf40687c64ba32e76498052d56b49f35e4d54bb8b1c28ce50de", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 2 tests
[INFO] [stderr]  --> src/lib.rs:6:46
[INFO] [stdout] test test::case_insensitive ... ok
[INFO] [stderr]   |
[INFO] [stdout] test test::one_result ... ok
[INFO] [stderr] 6 | pub fn run(config: Config) -> Result<(), Box<Error>>{
[INFO] [stdout] 
[INFO] [stderr]   |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `collect` that must be used
[INFO] [stderr]   --> src/lib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     search(&config.query, &contents, !config.case_sensitive).into_iter()
[INFO] [stderr] 14 | |         .inspect(|&line| println!("{}", line)).collect::<Vec<_>>();
[INFO] [stderr]    | |___________________________________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stderr] 
[INFO] [stderr] warning: `minigrep` (lib) generated 2 warnings
[INFO] [stderr] warning: `minigrep` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/minigrep-26f8f4a4305542a2)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/minigrep-9ab94117df4dd0a2)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests minigrep
[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] running `Command { std: "docker" "inspect" "278bee922bb6fbf40687c64ba32e76498052d56b49f35e4d54bb8b1c28ce50de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "278bee922bb6fbf40687c64ba32e76498052d56b49f35e4d54bb8b1c28ce50de", kill_on_drop: false }`
[INFO] [stdout] 278bee922bb6fbf40687c64ba32e76498052d56b49f35e4d54bb8b1c28ce50de