[INFO] fetching crate zerogc-simple 0.2.0-alpha.7...
[INFO] testing zerogc-simple-0.2.0-alpha.7 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate zerogc-simple 0.2.0-alpha.7 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate zerogc-simple 0.2.0-alpha.7
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate zerogc-simple 0.2.0-alpha.7
[INFO] tweaked toml for crates.io crate zerogc-simple 0.2.0-alpha.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zerogc-simple 0.2.0-alpha.7 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] crate crates.io crate zerogc-simple 0.2.0-alpha.7 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" "+b83b707f97d809763b7861afa7638871f3339a33" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 91713db4cb8f7f6d74e602d2c8c7159d40752ff940dd9c388fafccbd393665bb
[INFO] running `Command { std: "docker" "start" "-a" "91713db4cb8f7f6d74e602d2c8c7159d40752ff940dd9c388fafccbd393665bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91713db4cb8f7f6d74e602d2c8c7159d40752ff940dd9c388fafccbd393665bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91713db4cb8f7f6d74e602d2c8c7159d40752ff940dd9c388fafccbd393665bb", kill_on_drop: false }`
[INFO] [stdout] 91713db4cb8f7f6d74e602d2c8c7159d40752ff940dd9c388fafccbd393665bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] dbbe3d6582ec3f68544c81e99418b89b8056b1a08a3162ebdfe0b74dd984cc9d
[INFO] running `Command { std: "docker" "start" "-a" "dbbe3d6582ec3f68544c81e99418b89b8056b1a08a3162ebdfe0b74dd984cc9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling proc-macro-kwargs-derive v0.1.5
[INFO] [stderr]    Compiling inherent v1.0.0
[INFO] [stderr]    Compiling proc-macro-kwargs v0.1.5
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]    Compiling darling v0.13.1
[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" "dbbe3d6582ec3f68544c81e99418b89b8056b1a08a3162ebdfe0b74dd984cc9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbbe3d6582ec3f68544c81e99418b89b8056b1a08a3162ebdfe0b74dd984cc9d", kill_on_drop: false }`
[INFO] [stdout] dbbe3d6582ec3f68544c81e99418b89b8056b1a08a3162ebdfe0b74dd984cc9d