[INFO] fetching crate next_prime 0.1.1...
[INFO] testing next_prime-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate next_prime 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate next_prime 0.1.1 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 next_prime 0.1.1
[INFO] finished tweaking crates.io crate next_prime 0.1.1
[INFO] tweaked toml for crates.io crate next_prime 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] 8cb871df9a2d24dbc8c82af56c43e023b58f088fa5ddd6f8c100f10874c0c0af
[INFO] running `Command { std: "docker" "start" "-a" "8cb871df9a2d24dbc8c82af56c43e023b58f088fa5ddd6f8c100f10874c0c0af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cb871df9a2d24dbc8c82af56c43e023b58f088fa5ddd6f8c100f10874c0c0af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cb871df9a2d24dbc8c82af56c43e023b58f088fa5ddd6f8c100f10874c0c0af", kill_on_drop: false }`
[INFO] [stdout] 8cb871df9a2d24dbc8c82af56c43e023b58f088fa5ddd6f8c100f10874c0c0af
[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] aa9ad1226cc1cb64e92555360c634219f378e944d17e02a74523b24e52a25363
[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" "aa9ad1226cc1cb64e92555360c634219f378e944d17e02a74523b24e52a25363", kill_on_drop: false }`
[INFO] [stderr]    Compiling next_prime v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "aa9ad1226cc1cb64e92555360c634219f378e944d17e02a74523b24e52a25363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa9ad1226cc1cb64e92555360c634219f378e944d17e02a74523b24e52a25363", kill_on_drop: false }`
[INFO] [stdout] aa9ad1226cc1cb64e92555360c634219f378e944d17e02a74523b24e52a25363
[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] 8ccac62d06acb7236d7d718a36eae017b6890d53423d5b4382def4d632193a87
[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" "8ccac62d06acb7236d7d718a36eae017b6890d53423d5b4382def4d632193a87", kill_on_drop: false }`
[INFO] [stderr]    Compiling next_prime v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "8ccac62d06acb7236d7d718a36eae017b6890d53423d5b4382def4d632193a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ccac62d06acb7236d7d718a36eae017b6890d53423d5b4382def4d632193a87", kill_on_drop: false }`
[INFO] [stdout] 8ccac62d06acb7236d7d718a36eae017b6890d53423d5b4382def4d632193a87
[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] e45a8920098bba644b841b75540a1a3d63f3581c757da4a41bbb0141e3937042
[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" "e45a8920098bba644b841b75540a1a3d63f3581c757da4a41bbb0141e3937042", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/next_prime-63f8b2c2043eab4c
[INFO] [stdout] running 11 tests
[INFO] [stdout] test next_prime_tests::finds_a_very_large_prime ... ok
[INFO] [stdout] test next_prime_tests::finds_small_primes ... ok
[INFO] [stdout] test usqrt_tests::rounds_up_when_not_a_perfect_square ... ok
[INFO] [stdout] test usqrt_tests::small_perfect_squares ... ok
[INFO] [stdout] test is_prime_tests::small_primes ... ok
[INFO] [stdout] test usqrt_tests::large_perfect_squares ... ok
[INFO] [stderr]    Doc-tests next_prime
[INFO] [stdout] test next_prime_tests::edge_case_two ... ok
[INFO] [stdout] test usqrt_tests::edge_case_zero ... ok
[INFO] [stdout] test usqrt_tests::large_not_perfect_square ... ok
[INFO] [stdout] test usqrt_tests::edge_case_one ... ok
[INFO] [stdout] test next_prime_tests::returns_argument_when_it_is_already_prime ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - next_prime (line 104) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e45a8920098bba644b841b75540a1a3d63f3581c757da4a41bbb0141e3937042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e45a8920098bba644b841b75540a1a3d63f3581c757da4a41bbb0141e3937042", kill_on_drop: false }`
[INFO] [stdout] e45a8920098bba644b841b75540a1a3d63f3581c757da4a41bbb0141e3937042