[INFO] fetching crate mux-stream 0.3.0... [INFO] checking mux-stream-0.3.0 against try#8ea250bdb76176ecb0225baa34aa634b024ae0e2 for pr-101692 [INFO] extracting crate mux-stream 0.3.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate mux-stream 0.3.0 on toolchain 8ea250bdb76176ecb0225baa34aa634b024ae0e2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mux-stream 0.3.0 [INFO] finished tweaking crates.io crate mux-stream 0.3.0 [INFO] tweaked toml for crates.io crate mux-stream 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate mux-stream 0.3.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 14e6e8995e13f780fa50a8a799b214cf537e643dcf0e9e5707923f0dba83b0b3 [INFO] running `Command { std: "docker" "start" "-a" "14e6e8995e13f780fa50a8a799b214cf537e643dcf0e9e5707923f0dba83b0b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "14e6e8995e13f780fa50a8a799b214cf537e643dcf0e9e5707923f0dba83b0b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14e6e8995e13f780fa50a8a799b214cf537e643dcf0e9e5707923f0dba83b0b3", kill_on_drop: false }` [INFO] [stdout] 14e6e8995e13f780fa50a8a799b214cf537e643dcf0e9e5707923f0dba83b0b3 [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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 62ce1f4b5d3810786f963e0f2e15d605c35aca8711fd3963fd53a95e125d5916 [INFO] running `Command { std: "docker" "start" "-a" "62ce1f4b5d3810786f963e0f2e15d605c35aca8711fd3963fd53a95e125d5916", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling pin-project-internal v0.4.23 [INFO] [stderr] Compiling proc-macro-nested v0.1.6 [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking futures-core v0.3.5 [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking futures-sink v0.3.5 [INFO] [stderr] Compiling proc-macro-hack v0.5.18 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking pin-project-lite v0.2.0 [INFO] [stderr] Compiling paste v1.0.0 [INFO] [stderr] Checking futures-task v0.3.5 [INFO] [stderr] Checking futures-channel v0.3.5 [INFO] [stderr] Compiling tokio v1.6.1 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling futures-macro v0.3.5 [INFO] [stderr] Compiling tokio-macros v1.2.0 [INFO] [stderr] Compiling mux-stream-macros v0.4.0 [INFO] [stderr] Compiling derive_more v0.99.9 [INFO] [stderr] Checking pin-project v0.4.23 [INFO] [stderr] Checking futures-util v0.3.5 [INFO] [stderr] Checking tokio-stream v0.1.6 [INFO] [stderr] Checking futures-executor v0.3.5 [INFO] [stderr] Checking futures v0.3.5 [INFO] [stderr] Checking mux-stream v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0391]: cycle detected when type-checking `main` [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: ...which requires evaluating trait selection obligation `[generator interior@/opt/rustwide/workdir/src/lib.rs:98:9: 98:61]: core::marker::Send`... [INFO] [stdout] note: ...which requires generator glue MIR for `main::{closure#0}::{closure#1}::{closure#0}`... [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: ...which requires elaborating drops for `main::{closure#0}::{closure#1}::{closure#0}`... [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: ...which requires borrow-checking `main::{closure#0}::{closure#1}::{closure#0}`... [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: ...which requires processing `main::{closure#0}::{closure#1}::{closure#0}`... [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: ...which requires processing MIR for `main::{closure#0}::{closure#1}::{closure#0}`... [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: ...which requires unsafety-checking `main::{closure#0}::{closure#1}::{closure#0}`... [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: ...which requires building MIR for `main::{closure#0}::{closure#1}::{closure#0}`... [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] note: ...which requires type-checking `main::{closure#0}::{closure#1}::{closure#0}`... [INFO] [stdout] --> examples/mux.rs:22:45 [INFO] [stdout] | [INFO] [stdout] 22 | let result: UnboundedReceiver = mux!(MyEnum { A, B, C })( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: ...which again requires type-checking `main`, completing the cycle [INFO] [stdout] = note: cycle used when type-checking all item bodies [INFO] [stdout] = note: this error originates in the macro `mux_stream::macros::mux` which comes from the expansion of the macro `mux` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0391`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mux-stream` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "62ce1f4b5d3810786f963e0f2e15d605c35aca8711fd3963fd53a95e125d5916", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "62ce1f4b5d3810786f963e0f2e15d605c35aca8711fd3963fd53a95e125d5916", kill_on_drop: false }` [INFO] [stdout] 62ce1f4b5d3810786f963e0f2e15d605c35aca8711fd3963fd53a95e125d5916