[INFO] fetching crate optbuilder 0.1.2...
[INFO] testing optbuilder-0.1.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate optbuilder 0.1.2 into /workspace/builds/worker-1-tc1/source
[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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate optbuilder 0.1.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.110)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7262709ff0c35c013c4d666f9062e9bd8aac1c9999d06ac3e6ba0589e898df7
[INFO] running `Command { std: "docker" "start" "-a" "f7262709ff0c35c013c4d666f9062e9bd8aac1c9999d06ac3e6ba0589e898df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7262709ff0c35c013c4d666f9062e9bd8aac1c9999d06ac3e6ba0589e898df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7262709ff0c35c013c4d666f9062e9bd8aac1c9999d06ac3e6ba0589e898df7", kill_on_drop: false }`
[INFO] [stdout] f7262709ff0c35c013c4d666f9062e9bd8aac1c9999d06ac3e6ba0589e898df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72d219083e65d207d3f413668c64ecd8b4cbdb7e0aee3c63dc826e0838e7d884
[INFO] running `Command { std: "docker" "start" "-a" "72d219083e65d207d3f413668c64ecd8b4cbdb7e0aee3c63dc826e0838e7d884", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling optbuilder v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.24s
[INFO] running `Command { std: "docker" "inspect" "72d219083e65d207d3f413668c64ecd8b4cbdb7e0aee3c63dc826e0838e7d884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d219083e65d207d3f413668c64ecd8b4cbdb7e0aee3c63dc826e0838e7d884", kill_on_drop: false }`
[INFO] [stdout] 72d219083e65d207d3f413668c64ecd8b4cbdb7e0aee3c63dc826e0838e7d884
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75f52dfecae45c2ef692152874a38a281fcd72157c2db575cee35d8bfd16e40a
[INFO] running `Command { std: "docker" "start" "-a" "75f52dfecae45c2ef692152874a38a281fcd72157c2db575cee35d8bfd16e40a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling optbuilder v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `a` and `c` are never read
[INFO] [stdout]   --> tests/lib.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         struct Foo {
[INFO] [stdout]    |                --- fields in this struct
[INFO] [stdout] 11 |             pub a: i32,
[INFO] [stdout]    |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 14 |             pub c: Option<i32>,
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a`, `b`, `c`, and `f` are never read
[INFO] [stdout]   --> tests/lib.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |         struct Foo {
[INFO] [stdout]    |                --- fields in this struct
[INFO] [stdout] 34 |             pub a: i32,
[INFO] [stdout]    |                 ^
[INFO] [stdout] 35 |             #[optbuilder(skip)]
[INFO] [stdout] 36 |             pub b: Option<i32>,
[INFO] [stdout]    |                 ^
[INFO] [stdout] 37 |             #[optbuilder(skip)]
[INFO] [stdout] 38 |             pub c: Option<i32>,
[INFO] [stdout]    |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 42 |             pub f: Option<f32>,
[INFO] [stdout]    |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `Command { std: "docker" "inspect" "75f52dfecae45c2ef692152874a38a281fcd72157c2db575cee35d8bfd16e40a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75f52dfecae45c2ef692152874a38a281fcd72157c2db575cee35d8bfd16e40a", kill_on_drop: false }`
[INFO] [stdout] 75f52dfecae45c2ef692152874a38a281fcd72157c2db575cee35d8bfd16e40a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c92fcbdc1f13d03cd9bf517c83bf6b47002020816c27fa277842af287560e350
[INFO] running `Command { std: "docker" "start" "-a" "c92fcbdc1f13d03cd9bf517c83bf6b47002020816c27fa277842af287560e350", kill_on_drop: false }`
[INFO] [stderr] warning: fields `a` and `c` are never read
[INFO] [stderr]   --> tests/lib.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |         struct Foo {
[INFO] [stderr]    |                --- fields in this struct
[INFO] [stderr] 11 |             pub a: i32,
[INFO] [stderr]    |                 ^
[INFO] [stderr] ...
[INFO] [stderr] 14 |             pub c: Option<i32>,
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `a`, `b`, `c`, and `f` are never read
[INFO] [stderr]   --> tests/lib.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |         struct Foo {
[INFO] [stderr]    |                --- fields in this struct
[INFO] [stderr] 34 |             pub a: i32,
[INFO] [stderr]    |                 ^
[INFO] [stderr] 35 |             #[optbuilder(skip)]
[INFO] [stderr] 36 |             pub b: Option<i32>,
[INFO] [stderr]    |                 ^
[INFO] [stderr] 37 |             #[optbuilder(skip)]
[INFO] [stderr] 38 |             pub c: Option<i32>,
[INFO] [stderr]    |                 ^
[INFO] [stderr] ...
[INFO] [stderr] 42 |             pub f: Option<f32>,
[INFO] [stderr]    |                 ^
[INFO] [stderr] 
[INFO] [stderr] warning: `optbuilder` (test "lib") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/optbuilder-4800986519e542e0)
[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] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-a5f0576c3e01c3bd)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_many_attrs ... ok
[INFO] [stdout] test tests::test_with_attr ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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" "c92fcbdc1f13d03cd9bf517c83bf6b47002020816c27fa277842af287560e350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c92fcbdc1f13d03cd9bf517c83bf6b47002020816c27fa277842af287560e350", kill_on_drop: false }`
[INFO] [stdout] c92fcbdc1f13d03cd9bf517c83bf6b47002020816c27fa277842af287560e350