[INFO] fetching crate lunatic-message-request 0.1.1...
[INFO] checking lunatic-message-request-0.1.1 against try#af54b6062f33b99e418444700f3a823ef0214052 for pr-138952
[INFO] extracting crate lunatic-message-request 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate lunatic-message-request 0.1.1 on toolchain af54b6062f33b99e418444700f3a823ef0214052
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate lunatic-message-request 0.1.1
[INFO] finished tweaking crates.io crate lunatic-message-request 0.1.1
[INFO] tweaked toml for crates.io crate lunatic-message-request 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate lunatic-message-request 0.1.1 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" "+af54b6062f33b99e418444700f3a823ef0214052" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lunatic v0.12.1
[INFO] [stderr]   Downloaded lunatic-macros v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb9441d2e0e82ce6b9b98ac097185d376a16cef7f2ccb3c1de23faacdf4d8a78
[INFO] running `Command { std: "docker" "start" "-a" "bb9441d2e0e82ce6b9b98ac097185d376a16cef7f2ccb3c1de23faacdf4d8a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb9441d2e0e82ce6b9b98ac097185d376a16cef7f2ccb3c1de23faacdf4d8a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9441d2e0e82ce6b9b98ac097185d376a16cef7f2ccb3c1de23faacdf4d8a78", kill_on_drop: false }`
[INFO] [stdout] bb9441d2e0e82ce6b9b98ac097185d376a16cef7f2ccb3c1de23faacdf4d8a78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14730cefa1c6196e8a21dfdbf8ee5fc331c9a8719f09ab07ececa8be49a178c9
[INFO] running `Command { std: "docker" "start" "-a" "14730cefa1c6196e8a21dfdbf8ee5fc331c9a8719f09ab07ececa8be49a178c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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] [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] running `Command { std: "docker" "inspect" "14730cefa1c6196e8a21dfdbf8ee5fc331c9a8719f09ab07ececa8be49a178c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14730cefa1c6196e8a21dfdbf8ee5fc331c9a8719f09ab07ececa8be49a178c9", kill_on_drop: false }`
[INFO] [stdout] 14730cefa1c6196e8a21dfdbf8ee5fc331c9a8719f09ab07ececa8be49a178c9