[INFO] fetching crate cylon_ast 0.4.0...
[INFO] testing cylon_ast-0.4.0 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate cylon_ast 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cylon_ast 0.4.0 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 118cbe96379e5a7d5e5d01634b1cd3162fa83056c301fd9adc724a10db67f509
[INFO] running `Command { std: "docker" "start" "-a" "118cbe96379e5a7d5e5d01634b1cd3162fa83056c301fd9adc724a10db67f509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "118cbe96379e5a7d5e5d01634b1cd3162fa83056c301fd9adc724a10db67f509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "118cbe96379e5a7d5e5d01634b1cd3162fa83056c301fd9adc724a10db67f509", kill_on_drop: false }`
[INFO] [stdout] 118cbe96379e5a7d5e5d01634b1cd3162fa83056c301fd9adc724a10db67f509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48ac5e10b427f332312c43da29d4b8c61f84b05b5b1b5f3c62d57b6a4db305a2
[INFO] running `Command { std: "docker" "start" "-a" "48ac5e10b427f332312c43da29d4b8c61f84b05b5b1b5f3c62d57b6a4db305a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_json v1.0.66
[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 17.57s
[INFO] running `Command { std: "docker" "inspect" "48ac5e10b427f332312c43da29d4b8c61f84b05b5b1b5f3c62d57b6a4db305a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48ac5e10b427f332312c43da29d4b8c61f84b05b5b1b5f3c62d57b6a4db305a2", kill_on_drop: false }`
[INFO] [stdout] 48ac5e10b427f332312c43da29d4b8c61f84b05b5b1b5f3c62d57b6a4db305a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c447cfaf90e36e906c2ffdd1486b97edfbef5631d264b509715305eb87e0a4e8
[INFO] running `Command { std: "docker" "start" "-a" "c447cfaf90e36e906c2ffdd1486b97edfbef5631d264b509715305eb87e0a4e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cylon_ast v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "c447cfaf90e36e906c2ffdd1486b97edfbef5631d264b509715305eb87e0a4e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c447cfaf90e36e906c2ffdd1486b97edfbef5631d264b509715305eb87e0a4e8", kill_on_drop: false }`
[INFO] [stdout] c447cfaf90e36e906c2ffdd1486b97edfbef5631d264b509715305eb87e0a4e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f136b9b95818eab99a19d1536d7a5a5bed2b60930c4637dab8cf02af0e376508
[INFO] running `Command { std: "docker" "start" "-a" "f136b9b95818eab99a19d1536d7a5a5bed2b60930c4637dab8cf02af0e376508", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cylon_ast-5efbd205fcd6695c)
[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] [stderr]    Doc-tests cylon_ast
[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" "f136b9b95818eab99a19d1536d7a5a5bed2b60930c4637dab8cf02af0e376508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f136b9b95818eab99a19d1536d7a5a5bed2b60930c4637dab8cf02af0e376508", kill_on_drop: false }`
[INFO] [stdout] f136b9b95818eab99a19d1536d7a5a5bed2b60930c4637dab8cf02af0e376508