[INFO] cloning repository https://github.com/ludo-c/fake-producer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ludo-c/fake-producer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fludo-c%2Ffake-producer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fludo-c%2Ffake-producer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a05997465041f55c3b4128640a8b1ec6776bc2f
[INFO] checking ludo-c/fake-producer/6a05997465041f55c3b4128640a8b1ec6776bc2f against master#217cb73577ed6f30a2005dd75bab01d23ec4cd60 for pr-148939
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fludo-c%2Ffake-producer" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ludo-c/fake-producer
[INFO] finished tweaking git repo https://github.com/ludo-c/fake-producer
[INFO] tweaked toml for git repo https://github.com/ludo-c/fake-producer written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ludo-c/fake-producer on toolchain 217cb73577ed6f30a2005dd75bab01d23ec4cd60
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ludo-c/fake-producer 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" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zbus_names v2.2.0
[INFO] [stderr]   Downloaded enumflags2 v0.7.5
[INFO] [stderr]   Downloaded async-recursion v1.0.0
[INFO] [stderr]   Downloaded async-broadcast v0.4.1
[INFO] [stderr]   Downloaded async-io v1.10.0
[INFO] [stderr]   Downloaded async-channel v1.7.1
[INFO] [stderr]   Downloaded zbus v3.4.0
[INFO] [stderr]   Downloaded concurrent-queue v2.0.0
[INFO] [stderr]   Downloaded polling v2.4.0
[INFO] [stderr]   Downloaded async-lock v2.6.0
[INFO] [stderr]   Downloaded ordered-stream v0.1.1
[INFO] [stderr]   Downloaded zbus_macros v3.4.0
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.4
[INFO] [stderr]   Downloaded zvariant v3.7.1
[INFO] [stderr]   Downloaded serde_repr v0.1.9
[INFO] [stderr]   Downloaded zvariant_derive v3.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8c00bbb294f4370b817f6db32d3ac50b7a8cbd0024ee850f2894a586928a5bb
[INFO] running `Command { std: "docker" "start" "-a" "c8c00bbb294f4370b817f6db32d3ac50b7a8cbd0024ee850f2894a586928a5bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8c00bbb294f4370b817f6db32d3ac50b7a8cbd0024ee850f2894a586928a5bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8c00bbb294f4370b817f6db32d3ac50b7a8cbd0024ee850f2894a586928a5bb", kill_on_drop: false }`
[INFO] [stdout] c8c00bbb294f4370b817f6db32d3ac50b7a8cbd0024ee850f2894a586928a5bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+217cb73577ed6f30a2005dd75bab01d23ec4cd60" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6d26673bd722b8351fd5bfb23660b290a5f6f0aa90f765b05a76168c1012cb8
[INFO] running `Command { std: "docker" "start" "-a" "d6d26673bd722b8351fd5bfb23660b290a5f6f0aa90f765b05a76168c1012cb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking futures-io v0.3.25
[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 fastrand v1.8.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "d6d26673bd722b8351fd5bfb23660b290a5f6f0aa90f765b05a76168c1012cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d26673bd722b8351fd5bfb23660b290a5f6f0aa90f765b05a76168c1012cb8", kill_on_drop: false }`
[INFO] [stdout] d6d26673bd722b8351fd5bfb23660b290a5f6f0aa90f765b05a76168c1012cb8