[INFO] fetching crate nash-ast 0.2.0...
[INFO] testing nash-ast-0.2.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate nash-ast 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate nash-ast 0.2.0
[INFO] finished tweaking crates.io crate nash-ast 0.2.0
[INFO] tweaked toml for crates.io crate nash-ast 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nash-ast 0.2.0 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 nash-ast 0.2.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 983a7c6fbbf4a4a0d240713261414b4e4d73355c3db5224c124958985f505b24
[INFO] running `Command { std: "docker" "start" "-a" "983a7c6fbbf4a4a0d240713261414b4e4d73355c3db5224c124958985f505b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "983a7c6fbbf4a4a0d240713261414b4e4d73355c3db5224c124958985f505b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "983a7c6fbbf4a4a0d240713261414b4e4d73355c3db5224c124958985f505b24", kill_on_drop: false }`
[INFO] [stdout] 983a7c6fbbf4a4a0d240713261414b4e4d73355c3db5224c124958985f505b24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1f2a8f5582753e5d3c3529cff18585aa2506458a329d879fe76a4cf2b44590e3
[INFO] running `Command { std: "docker" "start" "-a" "1f2a8f5582753e5d3c3529cff18585aa2506458a329d879fe76a4cf2b44590e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling nash-region v0.2.0
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]    Compiling nash-source v0.2.0
[INFO] [stderr]    Compiling nash-ast v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "1f2a8f5582753e5d3c3529cff18585aa2506458a329d879fe76a4cf2b44590e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f2a8f5582753e5d3c3529cff18585aa2506458a329d879fe76a4cf2b44590e3", kill_on_drop: false }`
[INFO] [stdout] 1f2a8f5582753e5d3c3529cff18585aa2506458a329d879fe76a4cf2b44590e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 210de3d3e053effdb9390bda646b8c00fac7882e7f612bd9100a943f48cb1a03
[INFO] running `Command { std: "docker" "start" "-a" "210de3d3e053effdb9390bda646b8c00fac7882e7f612bd9100a943f48cb1a03", kill_on_drop: false }`
[INFO] [stderr]    Compiling nash-ast v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "210de3d3e053effdb9390bda646b8c00fac7882e7f612bd9100a943f48cb1a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210de3d3e053effdb9390bda646b8c00fac7882e7f612bd9100a943f48cb1a03", kill_on_drop: false }`
[INFO] [stdout] 210de3d3e053effdb9390bda646b8c00fac7882e7f612bd9100a943f48cb1a03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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", kill_on_drop: false }`
[INFO] [stdout] 0e3a5f9dc283fa82a2fd5abbcfd5fc54d9fbccbde42bf94c994b12133c8612f3
[INFO] running `Command { std: "docker" "start" "-a" "0e3a5f9dc283fa82a2fd5abbcfd5fc54d9fbccbde42bf94c994b12133c8612f3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nash_ast-82fd604d5fd5f8b3)
[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] [stderr]    Doc-tests nash_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" "0e3a5f9dc283fa82a2fd5abbcfd5fc54d9fbccbde42bf94c994b12133c8612f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e3a5f9dc283fa82a2fd5abbcfd5fc54d9fbccbde42bf94c994b12133c8612f3", kill_on_drop: false }`
[INFO] [stdout] 0e3a5f9dc283fa82a2fd5abbcfd5fc54d9fbccbde42bf94c994b12133c8612f3