[INFO] fetching crate zerogc 0.2.0-alpha.7...
[INFO] testing zerogc-0.2.0-alpha.7 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate zerogc 0.2.0-alpha.7 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate zerogc 0.2.0-alpha.7
[INFO] finished tweaking crates.io crate zerogc 0.2.0-alpha.7
[INFO] tweaked toml for crates.io crate zerogc 0.2.0-alpha.7 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zerogc 0.2.0-alpha.7 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 51 packages to latest compatible versions
[INFO] [stderr]       Adding ahash v0.7.8 (available: v0.8.12)
[INFO] [stderr]       Adding hashbrown v0.11.2 (available: v0.16.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.11.4)
[INFO] [stderr]       Adding parking_lot v0.11.2 (available: v0.12.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ident_case v1.0.1
[INFO] [stderr]   Downloaded darling v0.13.4
[INFO] [stderr]   Downloaded inherent v1.0.13
[INFO] [stderr]   Downloaded darling_core v0.13.4
[INFO] [stderr]   Downloaded proc-macro-kwargs-derive v0.1.5
[INFO] [stderr]   Downloaded anyhow v1.0.100
[INFO] [stderr]   Downloaded ahash v0.7.8
[INFO] [stderr]   Downloaded instant v0.1.13
[INFO] [stderr]   Downloaded parking_lot v0.11.2
[INFO] [stderr]   Downloaded proc-macro-kwargs v0.1.5
[INFO] [stderr]   Downloaded zerogc-derive v0.2.0-alpha.6
[INFO] [stderr]   Downloaded darling_macro v0.13.4
[INFO] [stderr]   Downloaded redox_syscall v0.2.16
[INFO] [stderr]   Downloaded syn v1.0.109
[INFO] [stderr]   Downloaded parking_lot_core v0.8.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b815b9859d3d31e08480d1fd338ca6ebefd4af90564c9876f7c6ec82cb574e6
[INFO] running `Command { std: "docker" "start" "-a" "0b815b9859d3d31e08480d1fd338ca6ebefd4af90564c9876f7c6ec82cb574e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b815b9859d3d31e08480d1fd338ca6ebefd4af90564c9876f7c6ec82cb574e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b815b9859d3d31e08480d1fd338ca6ebefd4af90564c9876f7c6ec82cb574e6", kill_on_drop: false }`
[INFO] [stdout] 0b815b9859d3d31e08480d1fd338ca6ebefd4af90564c9876f7c6ec82cb574e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d8b33f0bf146e77f5f5c0dfd3adad894af8ab5167b6b8c8d43e46523ee77cf4
[INFO] running `Command { std: "docker" "start" "-a" "9d8b33f0bf146e77f5f5c0dfd3adad894af8ab5167b6b8c8d43e46523ee77cf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling inherent v1.0.13
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling proc-macro-kwargs-derive v0.1.5
[INFO] [stderr]    Compiling proc-macro-kwargs v0.1.5
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling zerogc-derive v0.2.0-alpha.6
[INFO] [stdout] error[E0599]: no method named `source_file` found for struct `proc_macro::Span` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerogc-derive-0.2.0-alpha.6/src/lib.rs:237:23
[INFO] [stdout]     |
[INFO] [stdout] 237 |     let sf = internal.source_file();
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `source` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 237 -     let sf = internal.source_file();
[INFO] [stdout] 237 +     let sf = internal.source();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `line` on type `proc_macro::Span`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerogc-derive-0.2.0-alpha.6/src/lib.rs:243:35
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let lineno = internal.start().line;
[INFO] [stdout]     |                                   ^^^^ method, not a field
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let lineno = internal.start().line();
[INFO] [stdout]     |                                       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0615.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zerogc-derive` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9d8b33f0bf146e77f5f5c0dfd3adad894af8ab5167b6b8c8d43e46523ee77cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d8b33f0bf146e77f5f5c0dfd3adad894af8ab5167b6b8c8d43e46523ee77cf4", kill_on_drop: false }`
[INFO] [stdout] 9d8b33f0bf146e77f5f5c0dfd3adad894af8ab5167b6b8c8d43e46523ee77cf4