[INFO] cloning repository https://github.com/penick/kafka_hang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/penick/kafka_hang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpenick%2Fkafka_hang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpenick%2Fkafka_hang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1402b2d82179447f9e7db312660bfc788bad69f8
[INFO] checking penick/kafka_hang against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpenick%2Fkafka_hang" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/penick/kafka_hang
[INFO] finished tweaking git repo https://github.com/penick/kafka_hang
[INFO] tweaked toml for git repo https://github.com/penick/kafka_hang written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/penick/kafka_hang on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/penick/kafka_hang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 319730f027cf3e343b28c5e0834fb8c5b553c08abd542b1af681a49bda5b6545
[INFO] running `Command { std: "docker" "start" "-a" "319730f027cf3e343b28c5e0834fb8c5b553c08abd542b1af681a49bda5b6545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "319730f027cf3e343b28c5e0834fb8c5b553c08abd542b1af681a49bda5b6545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "319730f027cf3e343b28c5e0834fb8c5b553c08abd542b1af681a49bda5b6545", kill_on_drop: false }`
[INFO] [stdout] 319730f027cf3e343b28c5e0834fb8c5b553c08abd542b1af681a49bda5b6545
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc9019dce7593e3f82900a335211f07db56b4cba34998fe222e02960f7ff8d3e
[INFO] running `Command { std: "docker" "start" "-a" "cc9019dce7593e3f82900a335211f07db56b4cba34998fe222e02960f7ff8d3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling rdkafka-sys v4.3.0+1.9.2 (https://github.com/fede1024/rust-rdkafka.git?tag=v0.29.0#65520c82)
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling async-trait v0.1.58
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stderr]    Compiling tokio-openssl v0.6.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking iana-time-zone v0.1.51
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cc9019dce7593e3f82900a335211f07db56b4cba34998fe222e02960f7ff8d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9019dce7593e3f82900a335211f07db56b4cba34998fe222e02960f7ff8d3e", kill_on_drop: false }`
[INFO] [stdout] cc9019dce7593e3f82900a335211f07db56b4cba34998fe222e02960f7ff8d3e