[INFO] cloning repository https://github.com/Jasperav/proc_macro_collision
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jasperav/proc_macro_collision" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasperav%2Fproc_macro_collision", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasperav%2Fproc_macro_collision'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1fa569f8e77afe18c65fb4c47105a7fc7573e146
[INFO] building Jasperav/proc_macro_collision against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasperav%2Fproc_macro_collision" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jasperav/proc_macro_collision on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jasperav/proc_macro_collision
[INFO] finished tweaking git repo https://github.com/Jasperav/proc_macro_collision
[INFO] tweaked toml for git repo https://github.com/Jasperav/proc_macro_collision written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Jasperav/proc_macro_collision 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.13
[INFO] [stderr]   Downloaded syn v1.0.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9c88fdf7fbcad16a178adf570cfab6e827fdf51abfadbcbc0af474659743cb6
[INFO] running `Command { std: "docker" "start" "-a" "c9c88fdf7fbcad16a178adf570cfab6e827fdf51abfadbcbc0af474659743cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9c88fdf7fbcad16a178adf570cfab6e827fdf51abfadbcbc0af474659743cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c88fdf7fbcad16a178adf570cfab6e827fdf51abfadbcbc0af474659743cb6", kill_on_drop: false }`
[INFO] [stdout] c9c88fdf7fbcad16a178adf570cfab6e827fdf51abfadbcbc0af474659743cb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59659a030a8fffc4a67c920ac9f6f80706fd075174b2415d93fcd069201e984c
[INFO] running `Command { std: "docker" "start" "-a" "59659a030a8fffc4a67c920ac9f6f80706fd075174b2415d93fcd069201e984c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stdout] warning: unused import: `syn::punctuated::Punctuated`
[INFO] [stdout]  --> parser/src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use syn::punctuated::Punctuated;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::parse_quote::ParseQuote`
[INFO] [stdout]  --> parser/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use syn::parse_quote::ParseQuote;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc_one v0.1.0 (/opt/rustwide/workdir/proc_one)
[INFO] [stderr]    Compiling proc_two v0.1.0 (/opt/rustwide/workdir/proc_two)
[INFO] [stderr]    Compiling proc_macro_collision v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0659]: `proc_macro_call` is ambiguous
[INFO] [stdout]   --> src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[proc_macro_hack]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout] ...
[INFO] [stdout] 11 |     let hi: &'static str = one!("hi");
[INFO] [stdout]    |                            ---------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: ambiguous because of a conflict between a macro-expanded name and a less macro-expanded name from outer scope during import or macro resolution
[INFO] [stdout] note: `proc_macro_call` could refer to the macro defined here
[INFO] [stdout]   --> src/main.rs:8:15
[INFO] [stdout]    |
[INFO] [stdout] 8  | use proc_two::two;
[INFO] [stdout]    |               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     let hi: &'static str = one!("hi");
[INFO] [stdout]    |                            ---------- in this macro invocation
[INFO] [stdout] note: `proc_macro_call` could also refer to the macro defined here
[INFO] [stdout]   --> src/main.rs:6:15
[INFO] [stdout]    |
[INFO] [stdout] 6  | use proc_one::one;
[INFO] [stdout]    |               ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     let hi: &'static str = one!("hi");
[INFO] [stdout]    |                            ---------- in this macro invocation
[INFO] [stdout]    = note: this error originates in the macro `two` which comes from the expansion of the macro `one` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc_macro_collision` (bin "proc_macro_collision") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "59659a030a8fffc4a67c920ac9f6f80706fd075174b2415d93fcd069201e984c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59659a030a8fffc4a67c920ac9f6f80706fd075174b2415d93fcd069201e984c", kill_on_drop: false }`
[INFO] [stdout] 59659a030a8fffc4a67c920ac9f6f80706fd075174b2415d93fcd069201e984c