[INFO] fetching crate wag 0.3.0...
[INFO] testing wag-0.3.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate wag 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate wag 0.3.0
[INFO] finished tweaking crates.io crate wag 0.3.0
[INFO] tweaked toml for crates.io crate wag 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wag 0.3.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 40 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 12b8d29d93844b52e45a885e18c2c474e1ba4bab13f8c7f1e45a93ccb54ad998
[INFO] running `Command { std: "docker" "start" "-a" "12b8d29d93844b52e45a885e18c2c474e1ba4bab13f8c7f1e45a93ccb54ad998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12b8d29d93844b52e45a885e18c2c474e1ba4bab13f8c7f1e45a93ccb54ad998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12b8d29d93844b52e45a885e18c2c474e1ba4bab13f8c7f1e45a93ccb54ad998", kill_on_drop: false }`
[INFO] [stdout] 12b8d29d93844b52e45a885e18c2c474e1ba4bab13f8c7f1e45a93ccb54ad998
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f38fa3121514f6eaf1b356729d48862181e3539be54c195aa202a412205b567d
[INFO] running `Command { std: "docker" "start" "-a" "f38fa3121514f6eaf1b356729d48862181e3539be54c195aa202a412205b567d", kill_on_drop: false }`
[INFO] [stderr]    Compiling wag v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lib.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct WaitChild(Arc<()>);
[INFO] [stdout]   |            --------- ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "f38fa3121514f6eaf1b356729d48862181e3539be54c195aa202a412205b567d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f38fa3121514f6eaf1b356729d48862181e3539be54c195aa202a412205b567d", kill_on_drop: false }`
[INFO] [stdout] f38fa3121514f6eaf1b356729d48862181e3539be54c195aa202a412205b567d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0ec91226b7009bec8e6435ffa7f01cec929fa0adc4aa2e70b9edf3caf1210b88
[INFO] running `Command { std: "docker" "start" "-a" "0ec91226b7009bec8e6435ffa7f01cec929fa0adc4aa2e70b9edf3caf1210b88", kill_on_drop: false }`
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lib.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct WaitChild(Arc<()>);
[INFO] [stdout]   |            --------- ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling wag v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/lib.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct WaitChild(Arc<()>);
[INFO] [stdout]   |            --------- ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "0ec91226b7009bec8e6435ffa7f01cec929fa0adc4aa2e70b9edf3caf1210b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec91226b7009bec8e6435ffa7f01cec929fa0adc4aa2e70b9edf3caf1210b88", kill_on_drop: false }`
[INFO] [stdout] 0ec91226b7009bec8e6435ffa7f01cec929fa0adc4aa2e70b9edf3caf1210b88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5b1f4bf46241fa1cc323efebc0b74560f823e9247d958aa8ab8ab6787be23a6f
[INFO] running `Command { std: "docker" "start" "-a" "5b1f4bf46241fa1cc323efebc0b74560f823e9247d958aa8ab8ab6787be23a6f", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/lib.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct WaitChild(Arc<()>);
[INFO] [stderr]   |            --------- ^^^^^^^
[INFO] [stderr]   |            |
[INFO] [stderr]   |            field in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing this field
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `wag` (lib) generated 1 warning
[INFO] [stderr] warning: `wag` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wag-682552fa5883fe6a)
[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/async.rs (/opt/rustwide/target/debug/deps/async-eeefbe2777a5184e)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test it_works_for_async_adds ... ok
[INFO] [stdout] test it_works_for_async_simple_add ... ok
[INFO] [stdout] test it_works_for_async_adds_as_iter ... ok
[INFO] [stdout] test it_works_for_async_adds_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.55s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/sync.rs (/opt/rustwide/target/debug/deps/sync-2ee7e43c4ee8ba4a)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test it_works_for_adds_as_iter ... ok
[INFO] [stdout] test it_works_for_adds_iter ... ok
[INFO] [stdout] test it_works_for_adds ... ok
[INFO] [stdout] test it_works_for_simple_add ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wag
[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" "5b1f4bf46241fa1cc323efebc0b74560f823e9247d958aa8ab8ab6787be23a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b1f4bf46241fa1cc323efebc0b74560f823e9247d958aa8ab8ab6787be23a6f", kill_on_drop: false }`
[INFO] [stdout] 5b1f4bf46241fa1cc323efebc0b74560f823e9247d958aa8ab8ab6787be23a6f