[INFO] fetching crate veriform_derive 0.2.0...
[INFO] testing veriform_derive-0.2.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate veriform_derive 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate veriform_derive 0.2.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate veriform_derive 0.2.0
[INFO] finished tweaking crates.io crate veriform_derive 0.2.0
[INFO] tweaked toml for crates.io crate veriform_derive 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd074a201fe5e2a3d27f1ac0bf511022be2ac9ee75ac116da682b91049e52990
[INFO] running `Command { std: "docker" "start" "-a" "bd074a201fe5e2a3d27f1ac0bf511022be2ac9ee75ac116da682b91049e52990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd074a201fe5e2a3d27f1ac0bf511022be2ac9ee75ac116da682b91049e52990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd074a201fe5e2a3d27f1ac0bf511022be2ac9ee75ac116da682b91049e52990", kill_on_drop: false }`
[INFO] [stdout] bd074a201fe5e2a3d27f1ac0bf511022be2ac9ee75ac116da682b91049e52990
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2b4b27eb332bcd5352c667a70288f58cccefae315e79236053931118383097b
[INFO] running `Command { std: "docker" "start" "-a" "b2b4b27eb332bcd5352c667a70288f58cccefae315e79236053931118383097b", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling veriform_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]   --> src/field.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     size: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min`
[INFO] [stdout]   --> src/field.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     min: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max`
[INFO] [stdout]   --> src/field.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     max: Option<usize>,
[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 5.42s
[INFO] running `Command { std: "docker" "inspect" "b2b4b27eb332bcd5352c667a70288f58cccefae315e79236053931118383097b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b4b27eb332bcd5352c667a70288f58cccefae315e79236053931118383097b", kill_on_drop: false }`
[INFO] [stdout] b2b4b27eb332bcd5352c667a70288f58cccefae315e79236053931118383097b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c15fc0f31342c7df872dfa222a7642f9dba0e5cda036b317ec546f4c83e66f75
[INFO] running `Command { std: "docker" "start" "-a" "c15fc0f31342c7df872dfa222a7642f9dba0e5cda036b317ec546f4c83e66f75", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]   --> src/field.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     size: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min`
[INFO] [stdout]   --> src/field.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     min: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling veriform_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `max`
[INFO] [stdout]   --> src/field.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     max: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]   --> src/field.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     size: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min`
[INFO] [stdout]   --> src/field.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     min: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max`
[INFO] [stdout]   --> src/field.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     max: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "c15fc0f31342c7df872dfa222a7642f9dba0e5cda036b317ec546f4c83e66f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15fc0f31342c7df872dfa222a7642f9dba0e5cda036b317ec546f4c83e66f75", kill_on_drop: false }`
[INFO] [stdout] c15fc0f31342c7df872dfa222a7642f9dba0e5cda036b317ec546f4c83e66f75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 497e854c74124c2eba348eef26a9dfc3fff9456e7bb3f1a08845b7bde6403774
[INFO] running `Command { std: "docker" "start" "-a" "497e854c74124c2eba348eef26a9dfc3fff9456e7bb3f1a08845b7bde6403774", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `size`
[INFO] [stderr]   --> src/field.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     size: Option<usize>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `min`
[INFO] [stderr]   --> src/field.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     min: Option<usize>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max`
[INFO] [stderr]   --> src/field.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     max: Option<usize>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `veriform_derive` (lib) generated 3 warnings
[INFO] [stderr] warning: `veriform_derive` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/veriform_derive-77643991bb85eb52)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests veriform_derive
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/field.rs - field::Attrs (line 15) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "497e854c74124c2eba348eef26a9dfc3fff9456e7bb3f1a08845b7bde6403774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "497e854c74124c2eba348eef26a9dfc3fff9456e7bb3f1a08845b7bde6403774", kill_on_drop: false }`
[INFO] [stdout] 497e854c74124c2eba348eef26a9dfc3fff9456e7bb3f1a08845b7bde6403774