[INFO] fetching crate abstract-syntax-tree 0.1.0...
[INFO] checking abstract-syntax-tree-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate abstract-syntax-tree 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate abstract-syntax-tree 0.1.0
[INFO] finished tweaking crates.io crate abstract-syntax-tree 0.1.0
[INFO] tweaked toml for crates.io crate abstract-syntax-tree 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate abstract-syntax-tree 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate abstract-syntax-tree 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f209448fa2041d2630a2a8502eb1430cb3d45abb1e3e9437027472fd5a8837b4
[INFO] running `Command { std: "docker" "start" "-a" "f209448fa2041d2630a2a8502eb1430cb3d45abb1e3e9437027472fd5a8837b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f209448fa2041d2630a2a8502eb1430cb3d45abb1e3e9437027472fd5a8837b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f209448fa2041d2630a2a8502eb1430cb3d45abb1e3e9437027472fd5a8837b4", kill_on_drop: false }`
[INFO] [stdout] f209448fa2041d2630a2a8502eb1430cb3d45abb1e3e9437027472fd5a8837b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf49ab9442cce4cc42c1a26210b209caeecd0e08e8fac48c6b02ced308363207
[INFO] running `Command { std: "docker" "start" "-a" "bf49ab9442cce4cc42c1a26210b209caeecd0e08e8fac48c6b02ced308363207", kill_on_drop: false }`
[INFO] [stderr]     Checking abstract-syntax-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find derive macro `Ast` in this scope
[INFO] [stdout]  --> examples/ast.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Ast)]
[INFO] [stdout]   |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `phase` in this scope
[INFO] [stdout]  --> examples/ast.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[phase(Parse)]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `phase` in this scope
[INFO] [stdout]  --> examples/ast.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[phase(Desugar)]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `phase` in this scope
[INFO] [stdout]  --> examples/ast.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[phase(Codegen)]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `phase` in this scope
[INFO] [stdout]   --> examples/ast.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[phase()]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast`
[INFO] [stdout]  --> examples/ast.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ast;
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `abstract-syntax-tree` (example "ast") due to 5 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "bf49ab9442cce4cc42c1a26210b209caeecd0e08e8fac48c6b02ced308363207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf49ab9442cce4cc42c1a26210b209caeecd0e08e8fac48c6b02ced308363207", kill_on_drop: false }`
[INFO] [stdout] bf49ab9442cce4cc42c1a26210b209caeecd0e08e8fac48c6b02ced308363207