[INFO] fetching crate const-field-offset 0.1.3...
[INFO] checking const-field-offset-0.1.3 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate const-field-offset 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate const-field-offset 0.1.3 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate const-field-offset 0.1.3
[INFO] finished tweaking crates.io crate const-field-offset 0.1.3
[INFO] tweaked toml for crates.io crate const-field-offset 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const-field-offset-macro v0.1.3
[INFO] [stderr]   Downloaded field-offset v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 034595b58e64f40d12504a4cd3c86335eee365d7055dcecd17d84a2047908ca2
[INFO] running `Command { std: "docker" "start" "-a" "034595b58e64f40d12504a4cd3c86335eee365d7055dcecd17d84a2047908ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "034595b58e64f40d12504a4cd3c86335eee365d7055dcecd17d84a2047908ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "034595b58e64f40d12504a4cd3c86335eee365d7055dcecd17d84a2047908ca2", kill_on_drop: false }`
[INFO] [stdout] 034595b58e64f40d12504a4cd3c86335eee365d7055dcecd17d84a2047908ca2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c1dce8411835229328fb7d5367c76f8fb6ab52c2062401fca2a38144b00173a
[INFO] running `Command { std: "docker" "start" "-a" "9c1dce8411835229328fb7d5367c76f8fb6ab52c2062401fca2a38144b00173a", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling field-offset v0.3.6
[INFO] [stderr]    Compiling const-field-offset-macro v0.1.3
[INFO] [stderr]     Checking const-field-offset v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `1`, `2`, `3`, and `4` are never read
[INFO] [stdout]   --> tests/test_field_offset.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[derive(FieldOffsets)]
[INFO] [stdout]    |          ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub a: u8,
[INFO] [stdout]    |            ^^
[INFO] [stdout] 77 |     b: u16,
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 78 |     c: u8,
[INFO] [stdout]    |        ^^
[INFO] [stdout] 79 |     d: u16,
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 76 ~     pub a: (),
[INFO] [stdout] 77 ~     b: (),
[INFO] [stdout] 78 ~     c: (),
[INFO] [stdout] 79 ~     d: (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `1`, `2`, and `3` are never read
[INFO] [stdout]   --> tests/test_field_offset.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | #[derive(FieldOffsets)]
[INFO] [stdout]    |          ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 87 |     k: core::cell::Cell<isize>,
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 88 |     xx: MyStruct,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 89 |     v: u32,
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 87 ~     k: (),
[INFO] [stdout] 88 ~     xx: (),
[INFO] [stdout] 89 ~     v: (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> tests/test_field_offset.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | #[derive(FieldOffsets)]
[INFO] [stdout]     |          ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 116 |     x: u32,
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[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] 116 |     x: (),
[INFO] [stdout]     |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "9c1dce8411835229328fb7d5367c76f8fb6ab52c2062401fca2a38144b00173a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c1dce8411835229328fb7d5367c76f8fb6ab52c2062401fca2a38144b00173a", kill_on_drop: false }`
[INFO] [stdout] 9c1dce8411835229328fb7d5367c76f8fb6ab52c2062401fca2a38144b00173a