[INFO] fetching crate sesh 0.1.1...
[INFO] checking sesh-0.1.1 against master#9a42c6509d399fd205917ebce474b31315c5d3e9 for pr-97427
[INFO] extracting crate sesh 0.1.1 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate sesh 0.1.1 on toolchain 9a42c6509d399fd205917ebce474b31315c5d3e9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sesh 0.1.1
[INFO] finished tweaking crates.io crate sesh 0.1.1
[INFO] tweaked toml for crates.io crate sesh 0.1.1 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 161ffd422ac22d1b16095c91646e40388d0e6791e73de272aaba0724a6126da8
[INFO] running `Command { std: "docker" "start" "-a" "161ffd422ac22d1b16095c91646e40388d0e6791e73de272aaba0724a6126da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "161ffd422ac22d1b16095c91646e40388d0e6791e73de272aaba0724a6126da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161ffd422ac22d1b16095c91646e40388d0e6791e73de272aaba0724a6126da8", kill_on_drop: false }`
[INFO] [stdout] 161ffd422ac22d1b16095c91646e40388d0e6791e73de272aaba0724a6126da8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+9a42c6509d399fd205917ebce474b31315c5d3e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c920d4301b9e401156e7dee4e6a7b73cc0ea16e1b7c8a36f9e4c89e64f23fa5f
[INFO] running `Command { std: "docker" "start" "-a" "c920d4301b9e401156e7dee4e6a7b73cc0ea16e1b7c8a36f9e4c89e64f23fa5f", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking sesh v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 154 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:144:5
[INFO] [stdout]     |
[INFO] [stdout] 144 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[doc(hidden)]` is ignored on trait impl items
[INFO] [stdout]    --> src/lib.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 154 |     #[doc(hidden)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: whether the impl item is `doc(hidden)` or not entirely depends on the corresponding trait item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `sesh::Send<i64, sesh::Recv<i64, sesh::Recv<CalcOp2<N>, sesh::End>>>: std::marker::Send`
[INFO] [stdout]    --> tests/tests.rs:437:10
[INFO] [stdout]     |
[INFO] [stdout] 437 |     More(Send<i64, Recv<i64, NiceCalcServer2<N>>>),
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required because it appears within the type `CalcOp2<N>`
[INFO] [stdout]    --> tests/tests.rs:436:6
[INFO] [stdout]     |
[INFO] [stdout] 436 | enum CalcOp2<N: marker::Send> {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout]     = note: required because of the requirements on the impl of `sesh::Session` for `sesh::Recv<CalcOp2<N>, sesh::End>`
[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 E0275`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sesh` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c920d4301b9e401156e7dee4e6a7b73cc0ea16e1b7c8a36f9e4c89e64f23fa5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c920d4301b9e401156e7dee4e6a7b73cc0ea16e1b7c8a36f9e4c89e64f23fa5f", kill_on_drop: false }`
[INFO] [stdout] c920d4301b9e401156e7dee4e6a7b73cc0ea16e1b7c8a36f9e4c89e64f23fa5f