[INFO] fetching crate ak-rt 0.1.1...
[INFO] testing ak-rt-0.1.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate ak-rt 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate ak-rt 0.1.1
[INFO] finished tweaking crates.io crate ak-rt 0.1.1
[INFO] tweaked toml for crates.io crate ak-rt 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ak-rt 0.1.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.45.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 329d1f1c8ba518925203936749444d2732dfa568d92ea9b48d678ea7c022c668
[INFO] running `Command { std: "docker" "start" "-a" "329d1f1c8ba518925203936749444d2732dfa568d92ea9b48d678ea7c022c668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "329d1f1c8ba518925203936749444d2732dfa568d92ea9b48d678ea7c022c668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "329d1f1c8ba518925203936749444d2732dfa568d92ea9b48d678ea7c022c668", kill_on_drop: false }`
[INFO] [stdout] 329d1f1c8ba518925203936749444d2732dfa568d92ea9b48d678ea7c022c668
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b1e34737c1a27d0d91df56f6859945d5c0310620945f045fd273eaa616414bcb
[INFO] running `Command { std: "docker" "start" "-a" "b1e34737c1a27d0d91df56f6859945d5c0310620945f045fd273eaa616414bcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling tokio-executor v0.2.0-alpha.6
[INFO] [stderr]    Compiling ak-rt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::prelude::Future`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::prelude::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `Future` in `prelude`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait instead
[INFO] [stdout]   |
[INFO] [stdout] 1 - use tokio::prelude::Future;
[INFO] [stdout] 1 + use std::future::Future;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio::spawn`
[INFO] [stdout]    --> src/lib.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout] 2   | use tokio::spawn;
[INFO] [stdout]     |     ^^^^^^^^^^^^ no `spawn` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-0.2.25/src/lib.rs:390:19
[INFO] [stdout]     |
[INFO] [stdout] 390 |     pub use task::spawn;
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] note: the item is gated behind the `rt-core` feature
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-0.2.25/src/lib.rs:388:1
[INFO] [stdout]     |
[INFO] [stdout] 388 | / cfg_rt_core! {
[INFO] [stdout] 389 | |     pub mod task;
[INFO] [stdout] 390 | |     pub use task::spawn;
[INFO] [stdout] 391 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     = note: this error originates in the macro `cfg_rt_core` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `current_thread` in `tokio_executor`
[INFO] [stdout]   --> src/lib.rs:5:21
[INFO] [stdout]    |
[INFO] [stdout] 5  |     tokio_executor::current_thread::block_on_all(async {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ could not find `current_thread` in `tokio_executor`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-executor-0.2.0-alpha.6/src/lib.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub mod current_thread;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] note: the item is gated behind the `current-thread` feature
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-executor-0.2.0-alpha.6/src/lib.rs:77:7
[INFO] [stdout]    |
[INFO] [stdout] 77 | #[cfg(feature = "current-thread")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `current_thread` in `tokio_executor`
[INFO] [stdout]   --> src/lib.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     tokio_executor::current_thread::spawn(fut);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ could not find `current_thread` in `tokio_executor`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-executor-0.2.0-alpha.6/src/lib.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub mod current_thread;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] note: the item is gated behind the `current-thread` feature
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-executor-0.2.0-alpha.6/src/lib.rs:77:7
[INFO] [stdout]    |
[INFO] [stdout] 77 | #[cfg(feature = "current-thread")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ak-rt` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b1e34737c1a27d0d91df56f6859945d5c0310620945f045fd273eaa616414bcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e34737c1a27d0d91df56f6859945d5c0310620945f045fd273eaa616414bcb", kill_on_drop: false }`
[INFO] [stdout] b1e34737c1a27d0d91df56f6859945d5c0310620945f045fd273eaa616414bcb