[INFO] fetching crate buffering_nocopy_macro 0.2.2...
[INFO] testing buffering_nocopy_macro-0.2.2 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate buffering_nocopy_macro 0.2.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate buffering_nocopy_macro 0.2.2
[INFO] finished tweaking crates.io crate buffering_nocopy_macro 0.2.2
[INFO] tweaked toml for crates.io crate buffering_nocopy_macro 0.2.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate buffering_nocopy_macro 0.2.2 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac028423cac5789cf064728220bce7c5e2166c0c4259498bd294aac5c6d81e23
[INFO] running `Command { std: "docker" "start" "-a" "ac028423cac5789cf064728220bce7c5e2166c0c4259498bd294aac5c6d81e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac028423cac5789cf064728220bce7c5e2166c0c4259498bd294aac5c6d81e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac028423cac5789cf064728220bce7c5e2166c0c4259498bd294aac5c6d81e23", kill_on_drop: false }`
[INFO] [stdout] ac028423cac5789cf064728220bce7c5e2166c0c4259498bd294aac5c6d81e23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bb804d038c0c2136f0acfa0237865c22cce54515493717e7f3c7285f8142b2c
[INFO] running `Command { std: "docker" "start" "-a" "0bb804d038c0c2136f0acfa0237865c22cce54515493717e7f3c7285f8142b2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling buffering_nocopy_macro v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     export::Span, Attribute, DeriveInput, Field, Ident, Lit, Meta, MetaList, MetaNameValue,
[INFO] [stdout]    |     ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `buffering_nocopy_macro` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0bb804d038c0c2136f0acfa0237865c22cce54515493717e7f3c7285f8142b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb804d038c0c2136f0acfa0237865c22cce54515493717e7f3c7285f8142b2c", kill_on_drop: false }`
[INFO] [stdout] 0bb804d038c0c2136f0acfa0237865c22cce54515493717e7f3c7285f8142b2c