[INFO] fetching crate voltage 0.0.1...
[INFO] testing voltage-0.0.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate voltage 0.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate voltage 0.0.1
[INFO] finished tweaking crates.io crate voltage 0.0.1
[INFO] tweaked toml for crates.io crate voltage 0.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate voltage 0.0.1 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 voltage 0.0.1 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5a59361ce9126a290954d2dc7fb6341146275a906482cec09724ce35a0bff625
[INFO] running `Command { std: "docker" "start" "-a" "5a59361ce9126a290954d2dc7fb6341146275a906482cec09724ce35a0bff625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a59361ce9126a290954d2dc7fb6341146275a906482cec09724ce35a0bff625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a59361ce9126a290954d2dc7fb6341146275a906482cec09724ce35a0bff625", kill_on_drop: false }`
[INFO] [stdout] 5a59361ce9126a290954d2dc7fb6341146275a906482cec09724ce35a0bff625
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5706cc01b6e74e319b197ea0c521aa852bb2d0ed2b4d557b0ecf4e08bbd4aa0f
[INFO] running `Command { std: "docker" "start" "-a" "5706cc01b6e74e319b197ea0c521aa852bb2d0ed2b4d557b0ecf4e08bbd4aa0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling voltage v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "5706cc01b6e74e319b197ea0c521aa852bb2d0ed2b4d557b0ecf4e08bbd4aa0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5706cc01b6e74e319b197ea0c521aa852bb2d0ed2b4d557b0ecf4e08bbd4aa0f", kill_on_drop: false }`
[INFO] [stdout] 5706cc01b6e74e319b197ea0c521aa852bb2d0ed2b4d557b0ecf4e08bbd4aa0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b8902b00e9b365c86009561c73983fd361e4bb324be0f722ea799a7ffe29a09d
[INFO] running `Command { std: "docker" "start" "-a" "b8902b00e9b365c86009561c73983fd361e4bb324be0f722ea799a7ffe29a09d", kill_on_drop: false }`
[INFO] [stderr]    Compiling voltage v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "b8902b00e9b365c86009561c73983fd361e4bb324be0f722ea799a7ffe29a09d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8902b00e9b365c86009561c73983fd361e4bb324be0f722ea799a7ffe29a09d", kill_on_drop: false }`
[INFO] [stdout] b8902b00e9b365c86009561c73983fd361e4bb324be0f722ea799a7ffe29a09d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1edc8996e68ab81b0aed1df0db356e8a7002f36895eb75e541ac7055c4fcad4e
[INFO] running `Command { std: "docker" "start" "-a" "1edc8996e68ab81b0aed1df0db356e8a7002f36895eb75e541ac7055c4fcad4e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/voltage-90258373715fc930)
[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" "1edc8996e68ab81b0aed1df0db356e8a7002f36895eb75e541ac7055c4fcad4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1edc8996e68ab81b0aed1df0db356e8a7002f36895eb75e541ac7055c4fcad4e", kill_on_drop: false }`
[INFO] [stdout] 1edc8996e68ab81b0aed1df0db356e8a7002f36895eb75e541ac7055c4fcad4e