[INFO] fetching crate qianlv_minigrep 0.1.0...
[INFO] testing qianlv_minigrep-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate qianlv_minigrep 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate qianlv_minigrep 0.1.0 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 crates.io crate qianlv_minigrep 0.1.0
[INFO] finished tweaking crates.io crate qianlv_minigrep 0.1.0
[INFO] tweaked toml for crates.io crate qianlv_minigrep 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate qianlv_minigrep 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0f0287b09d167a0f5b8999d57022429c02f96b69d854670f4dcb281cb46a36ed
[INFO] running `Command { std: "docker" "start" "-a" "0f0287b09d167a0f5b8999d57022429c02f96b69d854670f4dcb281cb46a36ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f0287b09d167a0f5b8999d57022429c02f96b69d854670f4dcb281cb46a36ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f0287b09d167a0f5b8999d57022429c02f96b69d854670f4dcb281cb46a36ed", kill_on_drop: false }`
[INFO] [stdout] 0f0287b09d167a0f5b8999d57022429c02f96b69d854670f4dcb281cb46a36ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 95694a36c22a060ff10dfce43b71f3a9607fc60631b55789a1ce5f656bf38cf6
[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" "95694a36c22a060ff10dfce43b71f3a9607fc60631b55789a1ce5f656bf38cf6", kill_on_drop: false }`
[INFO] [stderr]    Compiling qianlv_minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "95694a36c22a060ff10dfce43b71f3a9607fc60631b55789a1ce5f656bf38cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95694a36c22a060ff10dfce43b71f3a9607fc60631b55789a1ce5f656bf38cf6", kill_on_drop: false }`
[INFO] [stdout] 95694a36c22a060ff10dfce43b71f3a9607fc60631b55789a1ce5f656bf38cf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 557e8eccd96571733881b59a9a48a0f4900cbab4e0f3b5fc0b480aa27ab93941
[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" "557e8eccd96571733881b59a9a48a0f4900cbab4e0f3b5fc0b480aa27ab93941", kill_on_drop: false }`
[INFO] [stderr]    Compiling qianlv_minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "557e8eccd96571733881b59a9a48a0f4900cbab4e0f3b5fc0b480aa27ab93941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557e8eccd96571733881b59a9a48a0f4900cbab4e0f3b5fc0b480aa27ab93941", kill_on_drop: false }`
[INFO] [stdout] 557e8eccd96571733881b59a9a48a0f4900cbab4e0f3b5fc0b480aa27ab93941
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] f58c15ecbc1543cf711c216892d97effae560c8536aeee5f5aea7bc9e8c18e89
[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" "f58c15ecbc1543cf711c216892d97effae560c8536aeee5f5aea7bc9e8c18e89", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/qianlv_minigrep-0dc6543296c5c1db
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/qianlv_minigrep-2b19c76877fe733f
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests qianlv_minigrep
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] test tests::one_result ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f58c15ecbc1543cf711c216892d97effae560c8536aeee5f5aea7bc9e8c18e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f58c15ecbc1543cf711c216892d97effae560c8536aeee5f5aea7bc9e8c18e89", kill_on_drop: false }`
[INFO] [stdout] f58c15ecbc1543cf711c216892d97effae560c8536aeee5f5aea7bc9e8c18e89