[INFO] fetching crate scrub 0.1.0...
[INFO] testing scrub-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate scrub 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate scrub 0.1.0
[INFO] finished tweaking crates.io crate scrub 0.1.0
[INFO] tweaked toml for crates.io crate scrub 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scrub 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scrub 0.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 907ad91a0eed8c66b0d6315104115c76ed241c2f19062a11625823ec69ce5610
[INFO] running `Command { std: "docker" "start" "-a" "907ad91a0eed8c66b0d6315104115c76ed241c2f19062a11625823ec69ce5610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "907ad91a0eed8c66b0d6315104115c76ed241c2f19062a11625823ec69ce5610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "907ad91a0eed8c66b0d6315104115c76ed241c2f19062a11625823ec69ce5610", kill_on_drop: false }`
[INFO] [stdout] 907ad91a0eed8c66b0d6315104115c76ed241c2f19062a11625823ec69ce5610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd6bb69ad63fe6ce6e186bdc94f19247b26b0a0a71db3ba3751d45adfb449e4b
[INFO] running `Command { std: "docker" "start" "-a" "bd6bb69ad63fe6ce6e186bdc94f19247b26b0a0a71db3ba3751d45adfb449e4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling scrub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "bd6bb69ad63fe6ce6e186bdc94f19247b26b0a0a71db3ba3751d45adfb449e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd6bb69ad63fe6ce6e186bdc94f19247b26b0a0a71db3ba3751d45adfb449e4b", kill_on_drop: false }`
[INFO] [stdout] bd6bb69ad63fe6ce6e186bdc94f19247b26b0a0a71db3ba3751d45adfb449e4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 068abfabb4217368dd1c458fff7e36c98a5a7a9fc7fe0c2bd025b5d9883e30bc
[INFO] running `Command { std: "docker" "start" "-a" "068abfabb4217368dd1c458fff7e36c98a5a7a9fc7fe0c2bd025b5d9883e30bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling scrub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/scrubbed.rs:22:2
[INFO] [stdout]    |
[INFO] [stdout] 22 |     rules!(A);
[INFO] [stdout]    |     ^^^^^^^^^ expected `A`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `rules` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/scrubbed.rs:23:2
[INFO] [stdout]    |
[INFO] [stdout] 23 |     decl!(A);
[INFO] [stdout]    |     ^^^^^^^^ expected `A`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `decl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/scrubbed.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 |     decl2!(A);
[INFO] [stdout]    |     ^^^^^^^^^ expected `A`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `decl2` (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 E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/blameless.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     b!(A);
[INFO] [stdout]    |     ^^^^^ expected `A`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `b` (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 E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrub` (example "scrubbed") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `scrub` (example "blameless") due to 1 previous error
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> examples/blame.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 |         let () = $e;
[INFO] [stdout]   |             ^^ expected `A`, found `()`
[INFO] [stdout] ...
[INFO] [stdout] 9 |     b!(A);
[INFO] [stdout]   |     -----
[INFO] [stdout]   |     |  |
[INFO] [stdout]   |     |  this expression has type `A`
[INFO] [stdout]   |     in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `b` (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 E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrub` (example "blame") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "068abfabb4217368dd1c458fff7e36c98a5a7a9fc7fe0c2bd025b5d9883e30bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "068abfabb4217368dd1c458fff7e36c98a5a7a9fc7fe0c2bd025b5d9883e30bc", kill_on_drop: false }`
[INFO] [stdout] 068abfabb4217368dd1c458fff7e36c98a5a7a9fc7fe0c2bd025b5d9883e30bc