[INFO] fetching crate datasize 0.2.15...
[INFO] checking datasize-0.2.15 against master#191df20fcad9331d3a948aa8e8556775ec3fe69d for pr-133502-3
[INFO] extracting crate datasize 0.2.15 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate datasize 0.2.15 on toolchain 191df20fcad9331d3a948aa8e8556775ec3fe69d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 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: v1.44.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded datasize_derive v0.2.15
[INFO] [stderr]   Downloaded fake_instant v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb5fe0ff34229d5bc20b5d66062bab2b7a6afd2ce133d77e5597c9566df0e1e9
[INFO] running `Command { std: "docker" "start" "-a" "cb5fe0ff34229d5bc20b5d66062bab2b7a6afd2ce133d77e5597c9566df0e1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb5fe0ff34229d5bc20b5d66062bab2b7a6afd2ce133d77e5597c9566df0e1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5fe0ff34229d5bc20b5d66062bab2b7a6afd2ce133d77e5597c9566df0e1e9", kill_on_drop: false }`
[INFO] [stdout] cb5fe0ff34229d5bc20b5d66062bab2b7a6afd2ce133d77e5597c9566df0e1e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+191df20fcad9331d3a948aa8e8556775ec3fe69d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42738765b1487a6cd3fe9c0996f3fc867990495287b4be5fc49fd9d2f35f0008
[INFO] running `Command { std: "docker" "start" "-a" "42738765b1487a6cd3fe9c0996f3fc867990495287b4be5fc49fd9d2f35f0008", kill_on_drop: false }`
[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 1.21s
[INFO] running `Command { std: "docker" "inspect" "42738765b1487a6cd3fe9c0996f3fc867990495287b4be5fc49fd9d2f35f0008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42738765b1487a6cd3fe9c0996f3fc867990495287b4be5fc49fd9d2f35f0008", kill_on_drop: false }`
[INFO] [stdout] 42738765b1487a6cd3fe9c0996f3fc867990495287b4be5fc49fd9d2f35f0008