[INFO] fetching crate optbuilder 0.1.2...
[INFO] testing optbuilder-0.1.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate optbuilder 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate optbuilder 0.1.2 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 optbuilder 0.1.2
[INFO] finished tweaking crates.io crate optbuilder 0.1.2
[INFO] tweaked toml for crates.io crate optbuilder 0.1.2 written to /workspace/builds/worker-4/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c47ae23e1804829396cca6b49b83cb497de886d13b18ff9cb708e428bd8c3d4
[INFO] running `Command { std: "docker" "start" "-a" "2c47ae23e1804829396cca6b49b83cb497de886d13b18ff9cb708e428bd8c3d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c47ae23e1804829396cca6b49b83cb497de886d13b18ff9cb708e428bd8c3d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c47ae23e1804829396cca6b49b83cb497de886d13b18ff9cb708e428bd8c3d4", kill_on_drop: false }`
[INFO] [stdout] 2c47ae23e1804829396cca6b49b83cb497de886d13b18ff9cb708e428bd8c3d4
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8c81f345d64ed37ee9b7cd65a99f57f82bab41708ae67e76c281a30e663b0c1
[INFO] running `Command { std: "docker" "start" "-a" "e8c81f345d64ed37ee9b7cd65a99f57f82bab41708ae67e76c281a30e663b0c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling optbuilder v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "e8c81f345d64ed37ee9b7cd65a99f57f82bab41708ae67e76c281a30e663b0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c81f345d64ed37ee9b7cd65a99f57f82bab41708ae67e76c281a30e663b0c1", kill_on_drop: false }`
[INFO] [stdout] e8c81f345d64ed37ee9b7cd65a99f57f82bab41708ae67e76c281a30e663b0c1
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 507bc0d7e82681af23e20d6e5597b199ac2a34342fb2a63edb51b11d770afb7c
[INFO] running `Command { std: "docker" "start" "-a" "507bc0d7e82681af23e20d6e5597b199ac2a34342fb2a63edb51b11d770afb7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling optbuilder v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> tests/lib.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             pub a: i32,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `c`
[INFO] [stdout]   --> tests/lib.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |             pub c: Option<i32>,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]   --> tests/lib.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             pub a: i32,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]   --> tests/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             pub b: Option<i32>,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `c`
[INFO] [stdout]   --> tests/lib.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |             pub c: Option<i32>,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `f`
[INFO] [stdout]   --> tests/lib.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |             pub f: Option<f32>,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "507bc0d7e82681af23e20d6e5597b199ac2a34342fb2a63edb51b11d770afb7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507bc0d7e82681af23e20d6e5597b199ac2a34342fb2a63edb51b11d770afb7c", kill_on_drop: false }`
[INFO] [stdout] 507bc0d7e82681af23e20d6e5597b199ac2a34342fb2a63edb51b11d770afb7c
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 768553fcbe8ac6ec42f9bb5bef7299ce2ca35456e077d5e25915bd86a951ddc9
[INFO] running `Command { std: "docker" "start" "-a" "768553fcbe8ac6ec42f9bb5bef7299ce2ca35456e077d5e25915bd86a951ddc9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> tests/lib.rs:11:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 11 |             pub a: i32,
[INFO] [stdout] 
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 2 tests
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `c`
[INFO] [stderr]   --> tests/lib.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |             pub c: Option<i32>,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]   --> tests/lib.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |             pub a: i32,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]   --> tests/lib.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |             pub b: Option<i32>,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `c`
[INFO] [stderr]   --> tests/lib.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |             pub c: Option<i32>,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `f`
[INFO] [stderr]   --> tests/lib.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |             pub f: Option<f32>,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `optbuilder` (test "lib") generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optbuilder-b97d7da55e6c3093)
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-2a2d11fdfb148f44)
[INFO] [stdout] test tests::test_with_attr ... ok
[INFO] [stdout] test tests::test_many_attrs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests optbuilder
[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" "768553fcbe8ac6ec42f9bb5bef7299ce2ca35456e077d5e25915bd86a951ddc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "768553fcbe8ac6ec42f9bb5bef7299ce2ca35456e077d5e25915bd86a951ddc9", kill_on_drop: false }`
[INFO] [stdout] 768553fcbe8ac6ec42f9bb5bef7299ce2ca35456e077d5e25915bd86a951ddc9
