[INFO] fetching crate prometheus 0.13.2...
[INFO] checking prometheus-0.13.2 against try#8ea250bdb76176ecb0225baa34aa634b024ae0e2 for pr-101692
[INFO] extracting crate prometheus 0.13.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate prometheus 0.13.2 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 prometheus 0.13.2
[INFO] finished tweaking crates.io crate prometheus 0.13.2
[INFO] tweaked toml for crates.io crate prometheus 0.13.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate prometheus 0.13.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] a4aa222757ba786e8161f71b261bb1b2722dd12244acd81ce4711337d140ebff
[INFO] running `Command { std: "docker" "start" "-a" "a4aa222757ba786e8161f71b261bb1b2722dd12244acd81ce4711337d140ebff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4aa222757ba786e8161f71b261bb1b2722dd12244acd81ce4711337d140ebff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4aa222757ba786e8161f71b261bb1b2722dd12244acd81ce4711337d140ebff", kill_on_drop: false }`
[INFO] [stdout] a4aa222757ba786e8161f71b261bb1b2722dd12244acd81ce4711337d140ebff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 6ab079a015c4253e099f5852232309536439ebf499aeecf1e6358c26e65e67eb
[INFO] running `Command { std: "docker" "start" "-a" "6ab079a015c4253e099f5852232309536439ebf499aeecf1e6358c26e65e67eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling protobuf v2.27.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling prometheus v0.13.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking half v1.8.2
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[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling tokio v1.21.0
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
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[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking plotters v0.3.4
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]     Checking thiserror v1.0.34
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] error[E0391]: cycle detected when type-checking `main`
[INFO] [stdout]   --> examples/example_hyper.rs:61:44
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ...which requires evaluating trait selection obligation `[generator interior@examples/example_hyper.rs:61:76: 63:6]: core::marker::Send`...
[INFO] [stdout] note: ...which requires generator glue MIR for `main::{closure#0}::{closure#0}::{closure#0}`...
[INFO] [stdout]   --> examples/example_hyper.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |       let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 62 | |         Ok::<_, hyper::Error>(service_fn(serve_req))
[INFO] [stdout] 63 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] note: ...which requires elaborating drops for `main::{closure#0}::{closure#0}::{closure#0}`...
[INFO] [stdout]   --> examples/example_hyper.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |       let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 62 | |         Ok::<_, hyper::Error>(service_fn(serve_req))
[INFO] [stdout] 63 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] note: ...which requires borrow-checking `main::{closure#0}::{closure#0}::{closure#0}`...
[INFO] [stdout]   --> examples/example_hyper.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |       let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 62 | |         Ok::<_, hyper::Error>(service_fn(serve_req))
[INFO] [stdout] 63 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] note: ...which requires processing `main::{closure#0}::{closure#0}::{closure#0}`...
[INFO] [stdout]   --> examples/example_hyper.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |       let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 62 | |         Ok::<_, hyper::Error>(service_fn(serve_req))
[INFO] [stdout] 63 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] note: ...which requires processing MIR for `main::{closure#0}::{closure#0}::{closure#0}`...
[INFO] [stdout]   --> examples/example_hyper.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |       let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 62 | |         Ok::<_, hyper::Error>(service_fn(serve_req))
[INFO] [stdout] 63 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] note: ...which requires unsafety-checking `main::{closure#0}::{closure#0}::{closure#0}`...
[INFO] [stdout]   --> examples/example_hyper.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |       let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 62 | |         Ok::<_, hyper::Error>(service_fn(serve_req))
[INFO] [stdout] 63 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] note: ...which requires building MIR for `main::{closure#0}::{closure#0}::{closure#0}`...
[INFO] [stdout]   --> examples/example_hyper.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |       let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 62 | |         Ok::<_, hyper::Error>(service_fn(serve_req))
[INFO] [stdout] 63 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] note: ...which requires type-checking `main::{closure#0}::{closure#0}::{closure#0}`...
[INFO] [stdout]   --> examples/example_hyper.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |       let serve_future = Server::bind(&addr).serve(make_service_fn(|_| async {
[INFO] [stdout]    |  ____________________________________________________________________________^
[INFO] [stdout] 62 | |         Ok::<_, hyper::Error>(service_fn(serve_req))
[INFO] [stdout] 63 | |     }));
[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] 
[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 `prometheus` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6ab079a015c4253e099f5852232309536439ebf499aeecf1e6358c26e65e67eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ab079a015c4253e099f5852232309536439ebf499aeecf1e6358c26e65e67eb", kill_on_drop: false }`
[INFO] [stdout] 6ab079a015c4253e099f5852232309536439ebf499aeecf1e6358c26e65e67eb