[INFO] fetching crate json_proc_macro 0.5.1...
[INFO] checking json_proc_macro-0.5.1 against 1.95.0 for pr-155915
[INFO] extracting crate json_proc_macro 0.5.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate json_proc_macro 0.5.1
[INFO] finished tweaking crates.io crate json_proc_macro 0.5.1
[INFO] tweaked toml for crates.io crate json_proc_macro 0.5.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate json_proc_macro 0.5.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate json_proc_macro 0.5.1 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded semver v1.0.23
[INFO] [stderr]   Downloaded syn v2.0.86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8662fdccb9c64161529b4e0b393264f154d2e6ca223426d6a34b2b7cafb7e2a2
[INFO] running `Command { std: "docker" "start" "-a" "8662fdccb9c64161529b4e0b393264f154d2e6ca223426d6a34b2b7cafb7e2a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8662fdccb9c64161529b4e0b393264f154d2e6ca223426d6a34b2b7cafb7e2a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8662fdccb9c64161529b4e0b393264f154d2e6ca223426d6a34b2b7cafb7e2a2", kill_on_drop: false }`
[INFO] [stdout] 8662fdccb9c64161529b4e0b393264f154d2e6ca223426d6a34b2b7cafb7e2a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df77a7734058b3923df5c6a6547db1d61b7bde8317608b4518636932cd911818
[INFO] running `Command { std: "docker" "start" "-a" "df77a7734058b3923df5c6a6547db1d61b7bde8317608b4518636932cd911818", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]     Checking unicode-ident v1.0.13
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling json_proc_macro v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking syn v2.0.86
[INFO] [stdout] error[E0433]: cannot find type `Diagnostic` in this scope
[INFO] [stdout]    --> src/lib.rs:179:21
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let mut d = Diagnostic::spanned(
[INFO] [stdout]     |                     ^^^^^^^^^^ use of undeclared type `Diagnostic`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:17:18
[INFO] [stdout]     |
[INFO] [stdout]  15 | #[cfg(lints_enabled)]
[INFO] [stdout]     |       ------------- the item is gated here
[INFO] [stdout]  16 | // These only work on nightly because they are unstable
[INFO] [stdout]  17 | use proc_macro::{Diagnostic, Level};
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] help: a tool attribute with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 179 -         let mut d = Diagnostic::spanned(
[INFO] [stdout] 179 +         let mut d = diagnostic::spanned(
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `Level` in this scope
[INFO] [stdout]    --> src/lib.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 181 |             Level::Note,
[INFO] [stdout]     |             ^^^^^ use of undeclared type `Level`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:17:30
[INFO] [stdout]     |
[INFO] [stdout]  15 | #[cfg(lints_enabled)]
[INFO] [stdout]     |       ------------- the item is gated here
[INFO] [stdout]  16 | // These only work on nightly because they are unstable
[INFO] [stdout]  17 | use proc_macro::{Diagnostic, Level};
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `Diagnostic` in this scope
[INFO] [stdout]    --> src/lib.rs:179:21
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let mut d = Diagnostic::spanned(
[INFO] [stdout]     |                     ^^^^^^^^^^ use of undeclared type `Diagnostic`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:17:18
[INFO] [stdout]     |
[INFO] [stdout]  15 | #[cfg(lints_enabled)]
[INFO] [stdout]     |       ------------- the item is gated here
[INFO] [stdout]  16 | // These only work on nightly because they are unstable
[INFO] [stdout]  17 | use proc_macro::{Diagnostic, Level};
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] help: a tool attribute with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 179 -         let mut d = Diagnostic::spanned(
[INFO] [stdout] 179 +         let mut d = diagnostic::spanned(
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `Level` in this scope
[INFO] [stdout]    --> src/lib.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 181 |             Level::Note,
[INFO] [stdout]     |             ^^^^^ use of undeclared type `Level`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:17:30
[INFO] [stdout]     |
[INFO] [stdout]  15 | #[cfg(lints_enabled)]
[INFO] [stdout]     |       ------------- the item is gated here
[INFO] [stdout]  16 | // These only work on nightly because they are unstable
[INFO] [stdout]  17 | use proc_macro::{Diagnostic, Level};
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json_proc_macro` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json_proc_macro` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "df77a7734058b3923df5c6a6547db1d61b7bde8317608b4518636932cd911818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df77a7734058b3923df5c6a6547db1d61b7bde8317608b4518636932cd911818", kill_on_drop: false }`
[INFO] [stdout] df77a7734058b3923df5c6a6547db1d61b7bde8317608b4518636932cd911818