[INFO] fetching crate gen-stream 0.2.4...
[INFO] checking gen-stream-0.2.4 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate gen-stream 0.2.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gen-stream 0.2.4 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gen-stream 0.2.4
[INFO] finished tweaking crates.io crate gen-stream 0.2.4
[INFO] tweaked toml for crates.io crate gen-stream 0.2.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60d448e2c8af9f1293a78c861d728d72d05d4412b337dc096dfb762aa9b706dd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "60d448e2c8af9f1293a78c861d728d72d05d4412b337dc096dfb762aa9b706dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60d448e2c8af9f1293a78c861d728d72d05d4412b337dc096dfb762aa9b706dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d448e2c8af9f1293a78c861d728d72d05d4412b337dc096dfb762aa9b706dd", kill_on_drop: false }`
[INFO] [stdout] 60d448e2c8af9f1293a78c861d728d72d05d4412b337dc096dfb762aa9b706dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77e5dd3c0ce65737a2eb70a90d879a94e402ca5772f39365c421aef1be34f631
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "77e5dd3c0ce65737a2eb70a90d879a94e402ca5772f39365c421aef1be34f631", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking gen-stream v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stdout] error[E0432]: unresolved import `std::future::set_task_context`
[INFO] [stdout]   --> src/lib.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     std::future::set_task_context,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `set_task_context` in `future`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/lib.rs:120:52
[INFO] [stdout]     |
[INFO] [stdout] 120 |         set_task_context(cx, || match self.inner().resume() {
[INFO] [stdout]     |                                                    ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 120 |         set_task_context(cx, || match self.inner().resume(()) {
[INFO] [stdout]     |                                                           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/lib.rs:151:52
[INFO] [stdout]     |
[INFO] [stdout] 151 |         set_task_context(cx, || match self.inner().resume() {
[INFO] [stdout]     |                                                    ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 |         set_task_context(cx, || match self.inner().resume(()) {
[INFO] [stdout]     |                                                           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> src/lib.rs:191:61
[INFO] [stdout]     |
[INFO] [stdout] 191 |         set_task_context(cx, || match self.as_mut().inner().resume() {
[INFO] [stdout]     |                                                             ^^^^^^- supplied 0 arguments
[INFO] [stdout]     |
[INFO] [stdout] help: expected the unit value `()`; create it with empty parentheses
[INFO] [stdout]     |
[INFO] [stdout] 191 |         set_task_context(cx, || match self.as_mut().inner().resume(()) {
[INFO] [stdout]     |                                                                    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr] error: could not compile `gen-stream`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "77e5dd3c0ce65737a2eb70a90d879a94e402ca5772f39365c421aef1be34f631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77e5dd3c0ce65737a2eb70a90d879a94e402ca5772f39365c421aef1be34f631", kill_on_drop: false }`
[INFO] [stdout] 77e5dd3c0ce65737a2eb70a90d879a94e402ca5772f39365c421aef1be34f631