[INFO] fetching crate its_ok_to_be_block_on 0.1.0...
[INFO] testing its_ok_to_be_block_on-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate its_ok_to_be_block_on 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate its_ok_to_be_block_on 0.1.0
[INFO] finished tweaking crates.io crate its_ok_to_be_block_on 0.1.0
[INFO] tweaked toml for crates.io crate its_ok_to_be_block_on 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate its_ok_to_be_block_on 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f1fa9f3d72a4973f2c97f39d64f09ecdefd9d63eeda9512179c40e23ada6346
[INFO] running `Command { std: "docker" "start" "-a" "9f1fa9f3d72a4973f2c97f39d64f09ecdefd9d63eeda9512179c40e23ada6346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f1fa9f3d72a4973f2c97f39d64f09ecdefd9d63eeda9512179c40e23ada6346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f1fa9f3d72a4973f2c97f39d64f09ecdefd9d63eeda9512179c40e23ada6346", kill_on_drop: false }`
[INFO] [stdout] 9f1fa9f3d72a4973f2c97f39d64f09ecdefd9d63eeda9512179c40e23ada6346
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae7ef2b4050a83225ba93cef4ddc2ffb592e2b4997af29a7de248fedab45f3e2
[INFO] running `Command { std: "docker" "start" "-a" "ae7ef2b4050a83225ba93cef4ddc2ffb592e2b4997af29a7de248fedab45f3e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling its_ok_to_be_block_on v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "ae7ef2b4050a83225ba93cef4ddc2ffb592e2b4997af29a7de248fedab45f3e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae7ef2b4050a83225ba93cef4ddc2ffb592e2b4997af29a7de248fedab45f3e2", kill_on_drop: false }`
[INFO] [stdout] ae7ef2b4050a83225ba93cef4ddc2ffb592e2b4997af29a7de248fedab45f3e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6561d9eaf3962ce2a70b996d70f03c5215a607b3e0429df21c854f10e0771fd5
[INFO] running `Command { std: "docker" "start" "-a" "6561d9eaf3962ce2a70b996d70f03c5215a607b3e0429df21c854f10e0771fd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling its_ok_to_be_block_on v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "6561d9eaf3962ce2a70b996d70f03c5215a607b3e0429df21c854f10e0771fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6561d9eaf3962ce2a70b996d70f03c5215a607b3e0429df21c854f10e0771fd5", kill_on_drop: false }`
[INFO] [stdout] 6561d9eaf3962ce2a70b996d70f03c5215a607b3e0429df21c854f10e0771fd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7cfebeec2305d376fe7c0787eb908793f79dbc2ce2b4c66f7c3ac2df260aa43f
[INFO] running `Command { std: "docker" "start" "-a" "7cfebeec2305d376fe7c0787eb908793f79dbc2ce2b4c66f7c3ac2df260aa43f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests lib.rs (/opt/rustwide/target/debug/deps/block_on-73b1689a4913f481)
[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 block_on
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test enter.rs - enter::enter (line 40) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- enter.rs - enter::enter (line 40) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `futures`
[INFO] [stdout]   --> enter.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | use futures::executor::enter;
[INFO] [stdout]    |     ^^^^^^^ use of unresolved module or unlinked crate `futures`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `futures`, use `cargo add futures` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     enter.rs - enter::enter (line 40)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "7cfebeec2305d376fe7c0787eb908793f79dbc2ce2b4c66f7c3ac2df260aa43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cfebeec2305d376fe7c0787eb908793f79dbc2ce2b4c66f7c3ac2df260aa43f", kill_on_drop: false }`
[INFO] [stdout] 7cfebeec2305d376fe7c0787eb908793f79dbc2ce2b4c66f7c3ac2df260aa43f