[INFO] fetching crate partialdebug 0.2.0...
[INFO] checking partialdebug-0.2.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate partialdebug 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate partialdebug 0.2.0
[INFO] finished tweaking crates.io crate partialdebug 0.2.0
[INFO] tweaked toml for crates.io crate partialdebug 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate partialdebug 0.2.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded partialdebug-derive v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b2e8327c9de974506bd95f42bb555113e9e2c2a24b28a639eb3fe751d3dbdb5
[INFO] running `Command { std: "docker" "start" "-a" "0b2e8327c9de974506bd95f42bb555113e9e2c2a24b28a639eb3fe751d3dbdb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b2e8327c9de974506bd95f42bb555113e9e2c2a24b28a639eb3fe751d3dbdb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b2e8327c9de974506bd95f42bb555113e9e2c2a24b28a639eb3fe751d3dbdb5", kill_on_drop: false }`
[INFO] [stdout] 0b2e8327c9de974506bd95f42bb555113e9e2c2a24b28a639eb3fe751d3dbdb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 518fad398ebe26f06733f2920449fd0ac3518512a61466360834f415aac68f72
[INFO] running `Command { std: "docker" "start" "-a" "518fad398ebe26f06733f2920449fd0ac3518512a61466360834f415aac68f72", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling partialdebug-derive v0.2.0
[INFO] [stderr]     Checking partialdebug v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/placeholder.rs:28:28
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub struct TupleStruct(pub &'static str);
[INFO] [stdout]    |                ----------- ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `TupleStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]   --> tests/placeholder.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub struct NormalStruct {
[INFO] [stdout]    |                ------------ field in this struct
[INFO] [stdout] 32 |         pub field: &'static str,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NormalStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/placeholder.rs:38:15
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Tuple(Box<u8>),
[INFO] [stdout]    |         ----- ^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mixed` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 38 -         Tuple(Box<u8>),
[INFO] [stdout] 38 +         Tuple(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/placeholder.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |         Struct { a: u8 },
[INFO] [stdout]    |         ------   ^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mixed` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DefaultPlaceholder` is never constructed
[INFO] [stdout]   --> tests/hygiene.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct DefaultPlaceholder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomPlaceholder` is never constructed
[INFO] [stdout]   --> tests/hygiene.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct CustomPlaceholder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.50s
[INFO] running `Command { std: "docker" "inspect" "518fad398ebe26f06733f2920449fd0ac3518512a61466360834f415aac68f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "518fad398ebe26f06733f2920449fd0ac3518512a61466360834f415aac68f72", kill_on_drop: false }`
[INFO] [stdout] 518fad398ebe26f06733f2920449fd0ac3518512a61466360834f415aac68f72