[INFO] fetching crate gvko-minigrep 0.1.1...
[INFO] testing gvko-minigrep-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate gvko-minigrep 0.1.1 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate gvko-minigrep 0.1.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gvko-minigrep 0.1.1
[INFO] finished tweaking crates.io crate gvko-minigrep 0.1.1
[INFO] tweaked toml for crates.io crate gvko-minigrep 0.1.1 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] crate crates.io crate gvko-minigrep 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 869081fadafd3b97d72fa0c078050ef051039b479b1e065c758839158c55c8fa
[INFO] running `Command { std: "docker" "start" "-a" "869081fadafd3b97d72fa0c078050ef051039b479b1e065c758839158c55c8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "869081fadafd3b97d72fa0c078050ef051039b479b1e065c758839158c55c8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "869081fadafd3b97d72fa0c078050ef051039b479b1e065c758839158c55c8fa", kill_on_drop: false }`
[INFO] [stdout] 869081fadafd3b97d72fa0c078050ef051039b479b1e065c758839158c55c8fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a5f7dae2da80e6730dd0f3d5e5541285b6bd6ce3d6dcf4cdd9d8d994b84116f
[INFO] running `Command { std: "docker" "start" "-a" "9a5f7dae2da80e6730dd0f3d5e5541285b6bd6ce3d6dcf4cdd9d8d994b84116f", kill_on_drop: false }`
[INFO] [stderr]    Compiling gvko-minigrep v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `results` is never read
[INFO] [stdout]   --> src/lib.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut results = Vec::new();
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "9a5f7dae2da80e6730dd0f3d5e5541285b6bd6ce3d6dcf4cdd9d8d994b84116f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a5f7dae2da80e6730dd0f3d5e5541285b6bd6ce3d6dcf4cdd9d8d994b84116f", kill_on_drop: false }`
[INFO] [stdout] 9a5f7dae2da80e6730dd0f3d5e5541285b6bd6ce3d6dcf4cdd9d8d994b84116f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea92df1f99d3c07a034f4ee574bb79bba2172e5c2612403c48322a0377060774
[INFO] running `Command { std: "docker" "start" "-a" "ea92df1f99d3c07a034f4ee574bb79bba2172e5c2612403c48322a0377060774", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: value assigned to `results` is never read
[INFO] [stdout]   --> src/lib.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut results = Vec::new();
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gvko-minigrep v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `results` is never read
[INFO] [stdout]   --> src/lib.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let mut results = Vec::new();
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 31.01s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/gvko_minigrep-85008dec82957367)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/gvko_minigrep-639387d2c8b7ba1a)
[INFO] running `Command { std: "docker" "inspect" "ea92df1f99d3c07a034f4ee574bb79bba2172e5c2612403c48322a0377060774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea92df1f99d3c07a034f4ee574bb79bba2172e5c2612403c48322a0377060774", kill_on_drop: false }`
[INFO] [stdout] ea92df1f99d3c07a034f4ee574bb79bba2172e5c2612403c48322a0377060774
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a8200b18a30ec44e57561ab937298bbcec31d7104bb2577608edd5368b278e78
[INFO] running `Command { std: "docker" "start" "-a" "a8200b18a30ec44e57561ab937298bbcec31d7104bb2577608edd5368b278e78", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: value assigned to `results` is never read
[INFO] [stdout] running 2 tests
[INFO] [stderr]   --> src/lib.rs:31:13
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::one_result ... ok
[INFO] [stderr] 31 |     let mut results = Vec::new();
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `gvko-minigrep` (lib) generated 1 warning
[INFO] [stderr] warning: `gvko-minigrep` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/gvko_minigrep-85008dec82957367)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/gvko_minigrep-639387d2c8b7ba1a)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gvko-minigrep
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - search (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a8200b18a30ec44e57561ab937298bbcec31d7104bb2577608edd5368b278e78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8200b18a30ec44e57561ab937298bbcec31d7104bb2577608edd5368b278e78", kill_on_drop: false }`
[INFO] [stdout] a8200b18a30ec44e57561ab937298bbcec31d7104bb2577608edd5368b278e78