[INFO] fetching crate userland-io 0.1.0-alpha.4...
[INFO] checking userland-io-0.1.0-alpha.4 against try#8ea250bdb76176ecb0225baa34aa634b024ae0e2 for pr-101692
[INFO] extracting crate userland-io 0.1.0-alpha.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate userland-io 0.1.0-alpha.4 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 userland-io 0.1.0-alpha.4
[INFO] finished tweaking crates.io crate userland-io 0.1.0-alpha.4
[INFO] tweaked toml for crates.io crate userland-io 0.1.0-alpha.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] d019fa90a93ff8524ec8ab322503d17dc6527efc511132c31bfa7bf4812528ed
[INFO] running `Command { std: "docker" "start" "-a" "d019fa90a93ff8524ec8ab322503d17dc6527efc511132c31bfa7bf4812528ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d019fa90a93ff8524ec8ab322503d17dc6527efc511132c31bfa7bf4812528ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d019fa90a93ff8524ec8ab322503d17dc6527efc511132c31bfa7bf4812528ed", kill_on_drop: false }`
[INFO] [stdout] d019fa90a93ff8524ec8ab322503d17dc6527efc511132c31bfa7bf4812528ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4c324643207f966c93a77da0a7b8b44f7a17a7e2c17e70853ba05184d8f74429
[INFO] running `Command { std: "docker" "start" "-a" "4c324643207f966c93a77da0a7b8b44f7a17a7e2c17e70853ba05184d8f74429", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking rmp v0.8.11
[INFO] [stderr]    Compiling futures-macro v0.3.24
[INFO] [stderr]     Checking futures-executor v0.3.24
[INFO] [stderr]     Checking futures v0.3.24
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]     Checking userland-io v0.1.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0391]: cycle detected when type-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve`
[INFO] [stdout]    --> src/transport/nbd/mod.rs:182:29
[INFO] [stdout]     |
[INFO] [stdout] 182 | ...                   tokio::spawn(fut);
[INFO] [stdout]     |                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ...which requires evaluating trait selection obligation `[generator interior@src/transport/nbd/mod.rs:174:50: 181:30]: core::marker::Send`...
[INFO] [stdout] note: ...which requires generator glue MIR for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires elaborating drops for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires borrow-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires processing `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires processing MIR for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires unsafety-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires building MIR for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires type-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     = note: ...which again requires type-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve`, completing the cycle
[INFO] [stdout] note: cycle used when building MIR for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve`
[INFO] [stdout]    --> src/transport/nbd/mod.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub async fn serve(self, socket: SocketAddr) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0391]: cycle detected when type-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve`
[INFO] [stdout]    --> src/transport/nbd/mod.rs:182:29
[INFO] [stdout]     |
[INFO] [stdout] 182 | ...                   tokio::spawn(fut);
[INFO] [stdout]     |                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: ...which requires evaluating trait selection obligation `[generator interior@src/transport/nbd/mod.rs:174:50: 181:30]: core::marker::Send`...
[INFO] [stdout] note: ...which requires generator glue MIR for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires elaborating drops for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires borrow-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires processing `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires processing MIR for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires unsafety-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires building MIR for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] note: ...which requires type-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve::{closure#0}::{closure#0}`...
[INFO] [stdout]    --> src/transport/nbd/mod.rs:174:50
[INFO] [stdout]     |
[INFO] [stdout] 174 |   ...                   let fut = async move {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 175 | | ...                       let mut fut1 = tokio::spawn(request_handler.run()).fuse();
[INFO] [stdout] 176 | | ...                       let mut fut2 = tokio::spawn(response_handler.run()).fuse();
[INFO] [stdout] 177 | | ...                       select! {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | | ...                       }
[INFO] [stdout] 181 | | ...                   };
[INFO] [stdout]     | |_______________________^
[INFO] [stdout]     = note: ...which again requires type-checking `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve`, completing the cycle
[INFO] [stdout] note: cycle used when building MIR for `transport::nbd::<impl at src/transport/nbd/mod.rs:149:1: 149:12>::serve`
[INFO] [stdout]    --> src/transport/nbd/mod.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub async fn serve(self, socket: SocketAddr) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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] [stdout] For more information about this error, try `rustc --explain E0391`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `userland-io` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `userland-io` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4c324643207f966c93a77da0a7b8b44f7a17a7e2c17e70853ba05184d8f74429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c324643207f966c93a77da0a7b8b44f7a17a7e2c17e70853ba05184d8f74429", kill_on_drop: false }`
[INFO] [stdout] 4c324643207f966c93a77da0a7b8b44f7a17a7e2c17e70853ba05184d8f74429