[INFO] cloning repository https://github.com/zhenlu1936/babyse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhenlu1936/babyse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhenlu1936%2Fbabyse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhenlu1936%2Fbabyse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87f0e8058c3692cdc4045ef8a4409a1fee4160c0
[INFO] checking zhenlu1936/babyse against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhenlu1936%2Fbabyse" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zhenlu1936/babyse
[INFO] finished tweaking git repo https://github.com/zhenlu1936/babyse
[INFO] tweaked toml for git repo https://github.com/zhenlu1936/babyse written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zhenlu1936/babyse on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zhenlu1936/babyse 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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2eb2d6cdefd5dcb8ff71e13991aea1844532f6d25c8ee4d398df24fefa2c1cb6
[INFO] running `Command { std: "docker" "start" "-a" "2eb2d6cdefd5dcb8ff71e13991aea1844532f6d25c8ee4d398df24fefa2c1cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2eb2d6cdefd5dcb8ff71e13991aea1844532f6d25c8ee4d398df24fefa2c1cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eb2d6cdefd5dcb8ff71e13991aea1844532f6d25c8ee4d398df24fefa2c1cb6", kill_on_drop: false }`
[INFO] [stdout] 2eb2d6cdefd5dcb8ff71e13991aea1844532f6d25c8ee4d398df24fefa2c1cb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d65fe0f38db117b34d660db4eda5783f1c8b93b3c43b2912057632413d042e08
[INFO] running `Command { std: "docker" "start" "-a" "d65fe0f38db117b34d660db4eda5783f1c8b93b3c43b2912057632413d042e08", kill_on_drop: false }`
[INFO] [stderr]    Compiling babyse_derive v0.1.0 (/opt/rustwide/workdir/babyse_derive)
[INFO] [stderr]     Checking babyse_main v0.1.0 (/opt/rustwide/workdir/babyse_main)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> babyse_main/tests/test.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let f: Foo = *b.downcast::<Foo>().expect("wrong type");
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bar`
[INFO] [stdout]   --> babyse_main/tests/test.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let bar: Bar = *b.downcast::<Bar>().expect("wrong type");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_bar`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "d65fe0f38db117b34d660db4eda5783f1c8b93b3c43b2912057632413d042e08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d65fe0f38db117b34d660db4eda5783f1c8b93b3c43b2912057632413d042e08", kill_on_drop: false }`
[INFO] [stdout] d65fe0f38db117b34d660db4eda5783f1c8b93b3c43b2912057632413d042e08