[INFO] fetching crate neuralnetwork 0.1.1...
[INFO] testing neuralnetwork-0.1.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate neuralnetwork 0.1.1 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate neuralnetwork 0.1.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate neuralnetwork 0.1.1
[INFO] finished tweaking crates.io crate neuralnetwork 0.1.1
[INFO] tweaked toml for crates.io crate neuralnetwork 0.1.1 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f774cfa67b125ffa31e37e8e6549eb9980542c260bdf865379d0e5262c88a35
[INFO] running `Command { std: "docker" "start" "-a" "7f774cfa67b125ffa31e37e8e6549eb9980542c260bdf865379d0e5262c88a35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f774cfa67b125ffa31e37e8e6549eb9980542c260bdf865379d0e5262c88a35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f774cfa67b125ffa31e37e8e6549eb9980542c260bdf865379d0e5262c88a35", kill_on_drop: false }`
[INFO] [stdout] 7f774cfa67b125ffa31e37e8e6549eb9980542c260bdf865379d0e5262c88a35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9919ed26c577f9e9e1b56305485f015f3552235772fd4ffb9b67cd7364154778
[INFO] running `Command { std: "docker" "start" "-a" "9919ed26c577f9e9e1b56305485f015f3552235772fd4ffb9b67cd7364154778", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling neuralnetwork v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "9919ed26c577f9e9e1b56305485f015f3552235772fd4ffb9b67cd7364154778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9919ed26c577f9e9e1b56305485f015f3552235772fd4ffb9b67cd7364154778", kill_on_drop: false }`
[INFO] [stdout] 9919ed26c577f9e9e1b56305485f015f3552235772fd4ffb9b67cd7364154778
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdd52dbfd503992378f35bff4d5c86f7668e058000e47bbd6f24b434e68b49c7
[INFO] running `Command { std: "docker" "start" "-a" "fdd52dbfd503992378f35bff4d5c86f7668e058000e47bbd6f24b434e68b49c7", kill_on_drop: false }`
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling neuralnetwork v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/neuralnetwork.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             &file.read_exact(&mut buffer).ok();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "fdd52dbfd503992378f35bff4d5c86f7668e058000e47bbd6f24b434e68b49c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd52dbfd503992378f35bff4d5c86f7668e058000e47bbd6f24b434e68b49c7", kill_on_drop: false }`
[INFO] [stdout] fdd52dbfd503992378f35bff4d5c86f7668e058000e47bbd6f24b434e68b49c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 986d7b53192c25463e58a49e20efff6c65c08c5299e42eb53cd4cf3e7c4aa0f5
[INFO] running `Command { std: "docker" "start" "-a" "986d7b53192c25463e58a49e20efff6c65c08c5299e42eb53cd4cf3e7c4aa0f5", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/neuralnetwork.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             &file.read_exact(&mut buffer).ok();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/neuralnetwork.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |             &file.read_exact(&mut buffer).ok();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `neuralnetwork` (lib) generated 2 warnings
[INFO] [stderr] warning: `neuralnetwork` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/neuralnetwork-1ae153248a700bd0)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests neuralnetwork
[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 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" "986d7b53192c25463e58a49e20efff6c65c08c5299e42eb53cd4cf3e7c4aa0f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "986d7b53192c25463e58a49e20efff6c65c08c5299e42eb53cd4cf3e7c4aa0f5", kill_on_drop: false }`
[INFO] [stdout] 986d7b53192c25463e58a49e20efff6c65c08c5299e42eb53cd4cf3e7c4aa0f5
