[INFO] fetching crate datasize 0.2.15...
[INFO] checking datasize-0.2.15 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate datasize 0.2.15 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate datasize 0.2.15
[INFO] finished tweaking crates.io crate datasize 0.2.15
[INFO] tweaked toml for crates.io crate datasize 0.2.15 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate datasize 0.2.15 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] [stderr]       Adding fake_instant v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.45.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f79c78e3720b9e1dafa5036ccdf7c658bd9ec9d07cb1a75f8218c6d5bf38fea8
[INFO] running `Command { std: "docker" "start" "-a" "f79c78e3720b9e1dafa5036ccdf7c658bd9ec9d07cb1a75f8218c6d5bf38fea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f79c78e3720b9e1dafa5036ccdf7c658bd9ec9d07cb1a75f8218c6d5bf38fea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79c78e3720b9e1dafa5036ccdf7c658bd9ec9d07cb1a75f8218c6d5bf38fea8", kill_on_drop: false }`
[INFO] [stdout] f79c78e3720b9e1dafa5036ccdf7c658bd9ec9d07cb1a75f8218c6d5bf38fea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d64e73716ecc6c0eaa8df37cabece1fe146bb4fdcb2c043fcb4e6fdf501fa503
[INFO] running `Command { std: "docker" "start" "-a" "d64e73716ecc6c0eaa8df37cabece1fe146bb4fdcb2c043fcb4e6fdf501fa503", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling datasize_derive v0.2.15
[INFO] [stderr]     Checking datasize v0.2.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/std.rs:465:21
[INFO] [stdout]     |
[INFO] [stdout] 465 |             Skipped(Vec<i32>),
[INFO] [stdout]     |             ------- ^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[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] 465 -             Skipped(Vec<i32>),
[INFO] [stdout] 465 +             Skipped(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/std.rs:616:21
[INFO] [stdout]     |
[INFO] [stdout] 616 |             Skipped(Vec<C>),
[INFO] [stdout]     |             ------- ^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             field in this variant
[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] 616 -             Skipped(Vec<C>),
[INFO] [stdout] 616 +             Skipped(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]    --> src/std.rs:646:54
[INFO] [stdout]     |
[INFO] [stdout] 646 |         struct Foo<T>(T, Box<u8>, #[data_size(skip)] Box<u32>);
[INFO] [stdout]     |                --- field in this struct              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Foo` is never constructed
[INFO] [stdout]    --> src/lib.rs:637:16
[INFO] [stdout]     |
[INFO] [stdout] 637 |         struct Foo {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.75s
[INFO] running `Command { std: "docker" "inspect" "d64e73716ecc6c0eaa8df37cabece1fe146bb4fdcb2c043fcb4e6fdf501fa503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64e73716ecc6c0eaa8df37cabece1fe146bb4fdcb2c043fcb4e6fdf501fa503", kill_on_drop: false }`
[INFO] [stdout] d64e73716ecc6c0eaa8df37cabece1fe146bb4fdcb2c043fcb4e6fdf501fa503