[INFO] fetching crate grid_search_cardinal_best 0.3.1...
[INFO] testing grid_search_cardinal_best-0.3.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate grid_search_cardinal_best 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate grid_search_cardinal_best 0.3.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grid_search_cardinal_best 0.3.1
[INFO] finished tweaking crates.io crate grid_search_cardinal_best 0.3.1
[INFO] tweaked toml for crates.io crate grid_search_cardinal_best 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eff4917b2d60a8ec2a3a9997016e21a043739ed998c5663c1e6bac1f7628b8bb
[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" "eff4917b2d60a8ec2a3a9997016e21a043739ed998c5663c1e6bac1f7628b8bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eff4917b2d60a8ec2a3a9997016e21a043739ed998c5663c1e6bac1f7628b8bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eff4917b2d60a8ec2a3a9997016e21a043739ed998c5663c1e6bac1f7628b8bb", kill_on_drop: false }`
[INFO] [stdout] eff4917b2d60a8ec2a3a9997016e21a043739ed998c5663c1e6bac1f7628b8bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf7f50abb38663440948991544aa4ae4cb9ede0972f3455998665808d1565dbc
[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" "bf7f50abb38663440948991544aa4ae4cb9ede0972f3455998665808d1565dbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling coord_2d v0.3.2
[INFO] [stderr]    Compiling direction v0.18.1
[INFO] [stderr]    Compiling grid_2d v0.15.1
[INFO] [stderr]    Compiling grid_search_cardinal_common v0.3.1
[INFO] [stderr]    Compiling grid_search_cardinal_best v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "bf7f50abb38663440948991544aa4ae4cb9ede0972f3455998665808d1565dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf7f50abb38663440948991544aa4ae4cb9ede0972f3455998665808d1565dbc", kill_on_drop: false }`
[INFO] [stdout] bf7f50abb38663440948991544aa4ae4cb9ede0972f3455998665808d1565dbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65d74e5254e43a993f7465c80cc5f3b8384498f010dc81be659cd97cd5dfc152
[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" "65d74e5254e43a993f7465c80cc5f3b8384498f010dc81be659cd97cd5dfc152", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_isaac v0.3.0
[INFO] [stderr]    Compiling grid_search_cardinal_best v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "65d74e5254e43a993f7465c80cc5f3b8384498f010dc81be659cd97cd5dfc152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65d74e5254e43a993f7465c80cc5f3b8384498f010dc81be659cd97cd5dfc152", kill_on_drop: false }`
[INFO] [stdout] 65d74e5254e43a993f7465c80cc5f3b8384498f010dc81be659cd97cd5dfc152
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", 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] 9703951fa329fa7f2a26cb0518b355b23c833218c18b53c8120dbf39fe44190f
[INFO] running `Command { std: "docker" "start" "-a" "9703951fa329fa7f2a26cb0518b355b23c833218c18b53c8120dbf39fe44190f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/grid_search_cardinal_best-c91b85ad3d016709)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::grid_b ... ok
[INFO] [stdout] test test::grid_d ... ok
[INFO] [stdout] test test::grid_c ... ok
[INFO] [stdout] test test::grid_a ... ok
[INFO] [stdout] test test::grid_random ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests grid_search_cardinal_best
[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" "9703951fa329fa7f2a26cb0518b355b23c833218c18b53c8120dbf39fe44190f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9703951fa329fa7f2a26cb0518b355b23c833218c18b53c8120dbf39fe44190f", kill_on_drop: false }`
[INFO] [stdout] 9703951fa329fa7f2a26cb0518b355b23c833218c18b53c8120dbf39fe44190f