[INFO] fetching crate task-tree 0.0.0...
[INFO] testing task-tree-0.0.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate task-tree 0.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate task-tree 0.0.0
[INFO] finished tweaking crates.io crate task-tree 0.0.0
[INFO] tweaked toml for crates.io crate task-tree 0.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate task-tree 0.0.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate task-tree 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 208192c72e4ea18e2d4e79f3c0de9b9fe7136c87715c4aa88123c0b97fafd010
[INFO] running `Command { std: "docker" "start" "-a" "208192c72e4ea18e2d4e79f3c0de9b9fe7136c87715c4aa88123c0b97fafd010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "208192c72e4ea18e2d4e79f3c0de9b9fe7136c87715c4aa88123c0b97fafd010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "208192c72e4ea18e2d4e79f3c0de9b9fe7136c87715c4aa88123c0b97fafd010", kill_on_drop: false }`
[INFO] [stdout] 208192c72e4ea18e2d4e79f3c0de9b9fe7136c87715c4aa88123c0b97fafd010
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46ce48e2c40c80bc3bd5f3b570094402dd3ac9ddf0ab3f65c2f4d9ac959d2ae7
[INFO] running `Command { std: "docker" "start" "-a" "46ce48e2c40c80bc3bd5f3b570094402dd3ac9ddf0ab3f65c2f4d9ac959d2ae7", kill_on_drop: false }`
[INFO] [stderr]    Compiling task-tree v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "46ce48e2c40c80bc3bd5f3b570094402dd3ac9ddf0ab3f65c2f4d9ac959d2ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46ce48e2c40c80bc3bd5f3b570094402dd3ac9ddf0ab3f65c2f4d9ac959d2ae7", kill_on_drop: false }`
[INFO] [stdout] 46ce48e2c40c80bc3bd5f3b570094402dd3ac9ddf0ab3f65c2f4d9ac959d2ae7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39e272cc67ed0c31dd56f598b4fa0bca83f6cd669f70854e93737745b9c24113
[INFO] running `Command { std: "docker" "start" "-a" "39e272cc67ed0c31dd56f598b4fa0bca83f6cd669f70854e93737745b9c24113", kill_on_drop: false }`
[INFO] [stderr]    Compiling task-tree v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "39e272cc67ed0c31dd56f598b4fa0bca83f6cd669f70854e93737745b9c24113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39e272cc67ed0c31dd56f598b4fa0bca83f6cd669f70854e93737745b9c24113", kill_on_drop: false }`
[INFO] [stdout] 39e272cc67ed0c31dd56f598b4fa0bca83f6cd669f70854e93737745b9c24113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 952edc533e46ea21cf124240d89410a79846ee84e90c2acfaf214489982e11c9
[INFO] running `Command { std: "docker" "start" "-a" "952edc533e46ea21cf124240d89410a79846ee84e90c2acfaf214489982e11c9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/task_tree-01e1525e1c9ab729)
[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]    Doc-tests task_tree
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 2) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 2) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `(`
[INFO] [stdout]  --> src/lib.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | tokio::spawn(async {})
[INFO] [stdout]   |             ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 2)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "952edc533e46ea21cf124240d89410a79846ee84e90c2acfaf214489982e11c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952edc533e46ea21cf124240d89410a79846ee84e90c2acfaf214489982e11c9", kill_on_drop: false }`
[INFO] [stdout] 952edc533e46ea21cf124240d89410a79846ee84e90c2acfaf214489982e11c9
