[INFO] fetching crate cylon_ast 0.4.0...
[INFO] testing cylon_ast-0.4.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate cylon_ast 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cylon_ast 0.4.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cylon_ast 0.4.0
[INFO] finished tweaking crates.io crate cylon_ast 0.4.0
[INFO] tweaked toml for crates.io crate cylon_ast 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6e781f58d0c006d704569cb6036ccde3dfb1fd6958c2e2e0ff30b12eca92f50
[INFO] running `Command { std: "docker" "start" "-a" "e6e781f58d0c006d704569cb6036ccde3dfb1fd6958c2e2e0ff30b12eca92f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6e781f58d0c006d704569cb6036ccde3dfb1fd6958c2e2e0ff30b12eca92f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e781f58d0c006d704569cb6036ccde3dfb1fd6958c2e2e0ff30b12eca92f50", kill_on_drop: false }`
[INFO] [stdout] e6e781f58d0c006d704569cb6036ccde3dfb1fd6958c2e2e0ff30b12eca92f50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52fcfc2a92a87c20de7bd3c8f42112624b8e92ab465e3fea73a7492f66d7bdbb
[INFO] running `Command { std: "docker" "start" "-a" "52fcfc2a92a87c20de7bd3c8f42112624b8e92ab465e3fea73a7492f66d7bdbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling cylon_ast v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "52fcfc2a92a87c20de7bd3c8f42112624b8e92ab465e3fea73a7492f66d7bdbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52fcfc2a92a87c20de7bd3c8f42112624b8e92ab465e3fea73a7492f66d7bdbb", kill_on_drop: false }`
[INFO] [stdout] 52fcfc2a92a87c20de7bd3c8f42112624b8e92ab465e3fea73a7492f66d7bdbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 192a4ea6cefbe6d041c76199a7f6878b5f51514bf59f1e682d405a48bdc4dc62
[INFO] running `Command { std: "docker" "start" "-a" "192a4ea6cefbe6d041c76199a7f6878b5f51514bf59f1e682d405a48bdc4dc62", kill_on_drop: false }`
[INFO] [stderr]    Compiling cylon_ast v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "192a4ea6cefbe6d041c76199a7f6878b5f51514bf59f1e682d405a48bdc4dc62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "192a4ea6cefbe6d041c76199a7f6878b5f51514bf59f1e682d405a48bdc4dc62", kill_on_drop: false }`
[INFO] [stdout] 192a4ea6cefbe6d041c76199a7f6878b5f51514bf59f1e682d405a48bdc4dc62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e832eb5d224dcecbc198b5222734befca27276f9cc731d68f368ff0e5f32fb2
[INFO] running `Command { std: "docker" "start" "-a" "8e832eb5d224dcecbc198b5222734befca27276f9cc731d68f368ff0e5f32fb2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cylon_ast-ee8999f2842df465)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cylon_ast
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e832eb5d224dcecbc198b5222734befca27276f9cc731d68f368ff0e5f32fb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e832eb5d224dcecbc198b5222734befca27276f9cc731d68f368ff0e5f32fb2", kill_on_drop: false }`
[INFO] [stdout] 8e832eb5d224dcecbc198b5222734befca27276f9cc731d68f368ff0e5f32fb2