[INFO] fetching crate flo-task 0.1.0...
[INFO] testing flo-task-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate flo-task 0.1.0 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate flo-task 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flo-task 0.1.0
[INFO] finished tweaking crates.io crate flo-task 0.1.0
[INFO] tweaked toml for crates.io crate flo-task 0.1.0 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df08d37375b090401a4efcd3ef170253c4e08fd331911b1a4879a18ad1a05714
[INFO] running `Command { std: "docker" "start" "-a" "df08d37375b090401a4efcd3ef170253c4e08fd331911b1a4879a18ad1a05714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df08d37375b090401a4efcd3ef170253c4e08fd331911b1a4879a18ad1a05714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df08d37375b090401a4efcd3ef170253c4e08fd331911b1a4879a18ad1a05714", kill_on_drop: false }`
[INFO] [stdout] df08d37375b090401a4efcd3ef170253c4e08fd331911b1a4879a18ad1a05714
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0348ef18cab68743a1595c89ce558a8466b3e32499446de70c26fd65fc301b6
[INFO] running `Command { std: "docker" "start" "-a" "c0348ef18cab68743a1595c89ce558a8466b3e32499446de70c26fd65fc301b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling flo-task v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.94s
[INFO] running `Command { std: "docker" "inspect" "c0348ef18cab68743a1595c89ce558a8466b3e32499446de70c26fd65fc301b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0348ef18cab68743a1595c89ce558a8466b3e32499446de70c26fd65fc301b6", kill_on_drop: false }`
[INFO] [stdout] c0348ef18cab68743a1595c89ce558a8466b3e32499446de70c26fd65fc301b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e44d3954d51d907806739b57fe534dbc85a2f8170fe14cc44d159da8c335b57
[INFO] running `Command { std: "docker" "start" "-a" "8e44d3954d51d907806739b57fe534dbc85a2f8170fe14cc44d159da8c335b57", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling flo-task v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.73s
[INFO] running `Command { std: "docker" "inspect" "8e44d3954d51d907806739b57fe534dbc85a2f8170fe14cc44d159da8c335b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e44d3954d51d907806739b57fe534dbc85a2f8170fe14cc44d159da8c335b57", kill_on_drop: false }`
[INFO] [stdout] 8e44d3954d51d907806739b57fe534dbc85a2f8170fe14cc44d159da8c335b57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 30863f588921913017590e8f42f4e6e1f233a1b35fec6250baad3f7c68dd2ba9
[INFO] running `Command { std: "docker" "start" "-a" "30863f588921913017590e8f42f4e6e1f233a1b35fec6250baad3f7c68dd2ba9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flo_task-4e635b5e59695876)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test spawn_scope::test_spawn ... ok
[INFO] [stdout] test spawn_scope::test_drop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flo-task
[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" "30863f588921913017590e8f42f4e6e1f233a1b35fec6250baad3f7c68dd2ba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30863f588921913017590e8f42f4e6e1f233a1b35fec6250baad3f7c68dd2ba9", kill_on_drop: false }`
[INFO] [stdout] 30863f588921913017590e8f42f4e6e1f233a1b35fec6250baad3f7c68dd2ba9