[INFO] cloning repository https://github.com/vityafx/introspection
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vityafx/introspection" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvityafx%2Fintrospection", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvityafx%2Fintrospection'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e9feac30d311411e0fbb27fcb6c5376bb892409
[INFO] checking vityafx/introspection against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvityafx%2Fintrospection" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vityafx/introspection on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vityafx/introspection
[INFO] finished tweaking git repo https://github.com/vityafx/introspection
[INFO] tweaked toml for git repo https://github.com/vityafx/introspection written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vityafx/introspection 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding introspection v0.1.0
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded introspection v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1da21c22fdebc80dc06f6e04028bb786eb6c3d5312758e9c81cd96318975215e
[INFO] running `Command { std: "docker" "start" "-a" "1da21c22fdebc80dc06f6e04028bb786eb6c3d5312758e9c81cd96318975215e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1da21c22fdebc80dc06f6e04028bb786eb6c3d5312758e9c81cd96318975215e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1da21c22fdebc80dc06f6e04028bb786eb6c3d5312758e9c81cd96318975215e", kill_on_drop: false }`
[INFO] [stdout] 1da21c22fdebc80dc06f6e04028bb786eb6c3d5312758e9c81cd96318975215e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb5bb778359444f014f202ec48bfdbee81c6c08554e10ea5a3407207b3d6800f
[INFO] running `Command { std: "docker" "start" "-a" "fb5bb778359444f014f202ec48bfdbee81c6c08554e10ea5a3407207b3d6800f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking syn v0.11.4
[INFO] [stderr]     Checking introspection v0.1.0 (/opt/rustwide/workdir/introspection)
[INFO] [stderr]    Compiling introspection v0.1.0
[INFO] [stderr]    Compiling introspection-derive v0.1.0 (/opt/rustwide/workdir/introspection-derive)
[INFO] [stderr]     Checking introspection-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `private_field` and `public_field` are never read
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct FrenchToast {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 8 |     private_field: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 9 |     pub public_field: u8,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `private_field` and `public_field` are never read
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct FrenchToast {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 8 |     private_field: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 9 |     pub public_field: u8,
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.11.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "fb5bb778359444f014f202ec48bfdbee81c6c08554e10ea5a3407207b3d6800f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb5bb778359444f014f202ec48bfdbee81c6c08554e10ea5a3407207b3d6800f", kill_on_drop: false }`
[INFO] [stdout] fb5bb778359444f014f202ec48bfdbee81c6c08554e10ea5a3407207b3d6800f