[INFO] fetching crate simple-grid 1.0.1...
[INFO] testing simple-grid-1.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate simple-grid 1.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate simple-grid 1.0.1 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 simple-grid 1.0.1
[INFO] finished tweaking crates.io crate simple-grid 1.0.1
[INFO] tweaked toml for crates.io crate simple-grid 1.0.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate simple-grid 1.0.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 8b2fcebc1f7fc692ebcfe60a71ffdf98c5d09f9dbaa8de6d88ede5e55865df28
[INFO] running `Command { std: "docker" "start" "-a" "8b2fcebc1f7fc692ebcfe60a71ffdf98c5d09f9dbaa8de6d88ede5e55865df28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b2fcebc1f7fc692ebcfe60a71ffdf98c5d09f9dbaa8de6d88ede5e55865df28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b2fcebc1f7fc692ebcfe60a71ffdf98c5d09f9dbaa8de6d88ede5e55865df28", kill_on_drop: false }`
[INFO] [stdout] 8b2fcebc1f7fc692ebcfe60a71ffdf98c5d09f9dbaa8de6d88ede5e55865df28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] c512f61b88296284f1a0821dc1d5ae18f574b5cd0db5be286c783d2e6a6f5b5e
[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" "c512f61b88296284f1a0821dc1d5ae18f574b5cd0db5be286c783d2e6a6f5b5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-grid v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "c512f61b88296284f1a0821dc1d5ae18f574b5cd0db5be286c783d2e6a6f5b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c512f61b88296284f1a0821dc1d5ae18f574b5cd0db5be286c783d2e6a6f5b5e", kill_on_drop: false }`
[INFO] [stdout] c512f61b88296284f1a0821dc1d5ae18f574b5cd0db5be286c783d2e6a6f5b5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9690d2483561e8434dd26f96cef9d6b7a7cbd7841f3259ead60095d461a42e1b
[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" "9690d2483561e8434dd26f96cef9d6b7a7cbd7841f3259ead60095d461a42e1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling simple-grid v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.98s
[INFO] running `Command { std: "docker" "inspect" "9690d2483561e8434dd26f96cef9d6b7a7cbd7841f3259ead60095d461a42e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9690d2483561e8434dd26f96cef9d6b7a7cbd7841f3259ead60095d461a42e1b", kill_on_drop: false }`
[INFO] [stdout] 9690d2483561e8434dd26f96cef9d6b7a7cbd7841f3259ead60095d461a42e1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 4e8f61dd40f1584e1bec53699f04d1a597cf6988c71c8c503bc51d7714535abf
[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" "4e8f61dd40f1584e1bec53699f04d1a597cf6988c71c8c503bc51d7714535abf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simple_grid-f6537754336ace75
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::contains_test ... ok
[INFO] [stdout] test tests::col_iter_test ... ok
[INFO] [stdout] test tests::set_value_test ... ok
[INFO] [stdout] test tests::insert_row_test ... ok
[INFO] [stdout] test tests::transpose_test ... ok
[INFO] [stdout] test tests::remove_row_test ... ok
[INFO] [stdout] test tests::remove_row_until_empty_test ... ok
[INFO] [stdout] test tests::is_empty_test ... ok
[INFO] [stdout] test tests::row_iter_test ... ok
[INFO] [stdout] test tests::new_default_test ... ok
[INFO] [stdout] test tests::rotate_cw_test ... ok
[INFO] [stdout] test tests::rotate_ccw_test ... ok
[INFO] [stdout] test tests::remove_column_test ... ok
[INFO] [stdout] test tests::insert_column_test ... ok
[INFO] [stdout] test tests::flip_horizontally_test ... ok
[INFO] [stdout] test tests::remove_column_until_empty_test ... ok
[INFO] [stdout] test tests::flip_vertically_test ... ok
[INFO] [stdout] test tests::index_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple-grid
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test src/lib.rs - Grid<T>::contains (line 529) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::rotate_ccw (line 394) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::insert_row (line 155) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::rotate_cw (line 365) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::flip_vertically (line 452) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::new (line 20) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::flip_horizontally (line 423) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::column_iter (line 136) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::transpose (line 482) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::row_iter (line 118) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::insert_column (line 226) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::remove_column (line 267) ... ok
[INFO] [stdout] test src/lib.rs - Grid<T>::remove_row (line 195) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4e8f61dd40f1584e1bec53699f04d1a597cf6988c71c8c503bc51d7714535abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e8f61dd40f1584e1bec53699f04d1a597cf6988c71c8c503bc51d7714535abf", kill_on_drop: false }`
[INFO] [stdout] 4e8f61dd40f1584e1bec53699f04d1a597cf6988c71c8c503bc51d7714535abf