[INFO] fetching crate xor-distance-exercise 0.3.6...
[INFO] testing xor-distance-exercise-0.3.6 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate xor-distance-exercise 0.3.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate xor-distance-exercise 0.3.6 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xor-distance-exercise 0.3.6
[INFO] finished tweaking crates.io crate xor-distance-exercise 0.3.6
[INFO] tweaked toml for crates.io crate xor-distance-exercise 0.3.6 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] a3fedbf7897449d44f66ca6dbd06d9cb90bdca73e1629acafd18d739986216c2
[INFO] running `Command { std: "docker" "start" "-a" "a3fedbf7897449d44f66ca6dbd06d9cb90bdca73e1629acafd18d739986216c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3fedbf7897449d44f66ca6dbd06d9cb90bdca73e1629acafd18d739986216c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3fedbf7897449d44f66ca6dbd06d9cb90bdca73e1629acafd18d739986216c2", kill_on_drop: false }`
[INFO] [stdout] a3fedbf7897449d44f66ca6dbd06d9cb90bdca73e1629acafd18d739986216c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d48a42dfbe977af3826d51530cc75bdb1603a327d115a57a5b1f4f5c63d98b19
[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" "d48a42dfbe977af3826d51530cc75bdb1603a327d115a57a5b1f4f5c63d98b19", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling xor-distance-exercise v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.61s
[INFO] running `Command { std: "docker" "inspect" "d48a42dfbe977af3826d51530cc75bdb1603a327d115a57a5b1f4f5c63d98b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d48a42dfbe977af3826d51530cc75bdb1603a327d115a57a5b1f4f5c63d98b19", kill_on_drop: false }`
[INFO] [stdout] d48a42dfbe977af3826d51530cc75bdb1603a327d115a57a5b1f4f5c63d98b19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2316d4cd5cdee08d478c3d1ff6d6451c9cafc0cf4fdb86ef17aef9b9796ebed9
[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" "2316d4cd5cdee08d478c3d1ff6d6451c9cafc0cf4fdb86ef17aef9b9796ebed9", kill_on_drop: false }`
[INFO] [stderr]    Compiling xor-distance-exercise v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "2316d4cd5cdee08d478c3d1ff6d6451c9cafc0cf4fdb86ef17aef9b9796ebed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2316d4cd5cdee08d478c3d1ff6d6451c9cafc0cf4fdb86ef17aef9b9796ebed9", kill_on_drop: false }`
[INFO] [stdout] 2316d4cd5cdee08d478c3d1ff6d6451c9cafc0cf4fdb86ef17aef9b9796ebed9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 563e8189642705b29a0267cea44624f06e8e277d75f6239d375ce8ded9c3ae9d
[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" "563e8189642705b29a0267cea44624f06e8e277d75f6239d375ce8ded9c3ae9d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 27 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xor_distance_exercise-82b1f2a0b9785538)
[INFO] [stdout] test bitops::tests::check_is_flag ... ok
[INFO] [stdout] test bitops::tests::check_is_flag_set ... ok
[INFO] [stdout] test bitops::tests::check_set_flag ... ok
[INFO] [stdout] test bitops::tests::check_set_bit ... ok
[INFO] [stdout] test bitops::tests::check_is_bit_set ... ok
[INFO] [stdout] test bits::tests::form_zero_padded_number ... ok
[INFO] [stdout] test xor_distance::tests::closest_u64 ... ok
[INFO] [stdout] test bits::tests::form_zero_padded_number_type_error ... ok
[INFO] [stdout] test bits::tests::get_set_bit ... ok
[INFO] [stdout] test bits::tests::incorporate_bit ... ok
[INFO] [stdout] test bits::tests::is_bit_decided ... ok
[INFO] [stdout] test bits::tests::new_bits_by_default_none ... ok
[INFO] [stdout] test bits::tests::set_bit_within_constrains ... ok
[INFO] [stdout] test xor_distance::tests::closest_u8 ... ok
[INFO] [stdout] test delivery_system::tests::reverse_closest_farms ... ok
[INFO] [stdout] test delivery_system::tests::closest_farms ... ok
[INFO] [stdout] test bits::tests::bit_size ... ok
[INFO] [stdout] test xor_distance::tests::reverse_closest_u64 ... ok
[INFO] [stdout] test xor_distance::tests::compose_closest_points_inequalities ... ok
[INFO] [stdout] test xor_distance::tests::compose_further_points_inequalities ... ok
[INFO] [stdout] test xor_distance::tests::reverse_closest_u8 ... ok
[INFO] [stdout] test xor_distance::tests::reverse_closest_invalid_input ... ok
[INFO] [stdout] test bitops::tests::is_bit_set_index_out_of_range - should panic ... ok
[INFO] [stdout] test bits::tests::get_bit_index_out_of_range - should panic ... ok
[INFO] [stdout] test bits::tests::set_bit_index_out_of_range - should panic ... ok
[INFO] [stdout] test delivery_system::tests::reverse_closest_farms_random_set ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xor_distance_exercise-357f4a128a8e2ed3)
[INFO] [stdout] test delivery_system::tests::reverse_closest_farms_random_position ... ok
[INFO] [stderr]    Doc-tests xor-distance-exercise
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test src/bits.rs - bits::Bits::form_zero_padded_number (line 172) ... ok
[INFO] [stdout] test src/bitops.rs - bitops::BitOps::is_bit_set (line 105) ... ok
[INFO] [stdout] test src/bitops.rs - bitops::BitOps::set_bit (line 129) ... ok
[INFO] [stdout] test src/bitops.rs - bitops::BitOps::is_flag (line 34) ... ok
[INFO] [stdout] test src/bits.rs - bits::Bits::new (line 36) ... ok
[INFO] [stdout] test src/bitops.rs - bitops::BitOps::set_flag (line 80) ... ok
[INFO] [stdout] test src/bitops.rs - bitops::BitOps::is_flag_set (line 58) ... ok
[INFO] [stdout] test src/bits.rs - bits::Bits::is_bit_decided (line 151) ... ok
[INFO] [stdout] test src/bits.rs - bits::Bits (line 10) ... ok
[INFO] [stdout] test src/bits.rs - bits::Bits::get_bit (line 78) ... ok
[INFO] [stdout] test src/bits.rs - bits::Bits::set_bit_within_constrains (line 119) ... ok
[INFO] [stdout] test src/bits.rs - bits::Bits::set_bit (line 97) ... ok
[INFO] [stdout] test src/bits.rs - bits::Bits::bit_size (line 58) ... ok
[INFO] [stdout] test src/delivery_system.rs - delivery_system::FoodDeliverySystem<T>::closest_farms (line 41) ... ok
[INFO] [stdout] test src/bitops.rs - bitops (line 5) ... ok
[INFO] [stdout] test src/delivery_system.rs - delivery_system::FoodDeliverySystem (line 9) ... ok
[INFO] [stdout] test src/xor_distance.rs - xor_distance::XorDistance<T>::reverse_closest (line 69) ... ok
[INFO] [stdout] test src/delivery_system.rs - delivery_system::FoodDeliverySystem<T>::reverse_closest_farms (line 63) ... ok
[INFO] [stdout] test src/xor_distance.rs - xor_distance::XorDistance<T>::closest (line 44) ... ok
[INFO] [stdout] test src/xor_distance.rs - xor_distance::XorDistance (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.33s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "563e8189642705b29a0267cea44624f06e8e277d75f6239d375ce8ded9c3ae9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "563e8189642705b29a0267cea44624f06e8e277d75f6239d375ce8ded9c3ae9d", kill_on_drop: false }`
[INFO] [stdout] 563e8189642705b29a0267cea44624f06e8e277d75f6239d375ce8ded9c3ae9d