[INFO] fetching crate bigml_derive 0.4.0...
[INFO] testing bigml_derive-0.4.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate bigml_derive 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate bigml_derive 0.4.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bigml_derive 0.4.0
[INFO] finished tweaking crates.io crate bigml_derive 0.4.0
[INFO] tweaked toml for crates.io crate bigml_derive 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd144024b26d9ae881145c98901571c1aaff3d1cde739d3f1cf1081064281ca7
[INFO] running `Command { std: "docker" "start" "-a" "bd144024b26d9ae881145c98901571c1aaff3d1cde739d3f1cf1081064281ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd144024b26d9ae881145c98901571c1aaff3d1cde739d3f1cf1081064281ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd144024b26d9ae881145c98901571c1aaff3d1cde739d3f1cf1081064281ca7", kill_on_drop: false }`
[INFO] [stdout] bd144024b26d9ae881145c98901571c1aaff3d1cde739d3f1cf1081064281ca7
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e2af7f4536979f5e5b76db2878dd3c0fb25980490ae176d6681ddb7fdf34cbf
[INFO] running `Command { std: "docker" "start" "-a" "6e2af7f4536979f5e5b76db2878dd3c0fb25980490ae176d6681ddb7fdf34cbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling bigml_derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `flatten`
[INFO] [stdout]   --> src/updatable.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     flatten: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `UpdatableFieldOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/updatable.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[derive(Debug, Default)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "6e2af7f4536979f5e5b76db2878dd3c0fb25980490ae176d6681ddb7fdf34cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e2af7f4536979f5e5b76db2878dd3c0fb25980490ae176d6681ddb7fdf34cbf", kill_on_drop: false }`
[INFO] [stdout] 6e2af7f4536979f5e5b76db2878dd3c0fb25980490ae176d6681ddb7fdf34cbf
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72a016c1e751ab5099784dabbbfc8bdd1e33da03b9c8dce2064de2e0fd8b3262
[INFO] running `Command { std: "docker" "start" "-a" "72a016c1e751ab5099784dabbbfc8bdd1e33da03b9c8dce2064de2e0fd8b3262", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `flatten`
[INFO] [stdout]   --> src/updatable.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     flatten: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `UpdatableFieldOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/updatable.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[derive(Debug, Default)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bigml_derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `flatten`
[INFO] [stdout]   --> src/updatable.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     flatten: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `UpdatableFieldOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/updatable.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[derive(Debug, Default)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "72a016c1e751ab5099784dabbbfc8bdd1e33da03b9c8dce2064de2e0fd8b3262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a016c1e751ab5099784dabbbfc8bdd1e33da03b9c8dce2064de2e0fd8b3262", kill_on_drop: false }`
[INFO] [stdout] 72a016c1e751ab5099784dabbbfc8bdd1e33da03b9c8dce2064de2e0fd8b3262
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b1524ee6eb400b12f49d046ca33eeba5383750b923430e159bf4bf33ed6ee87
[INFO] running `Command { std: "docker" "start" "-a" "3b1524ee6eb400b12f49d046ca33eeba5383750b923430e159bf4bf33ed6ee87", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `flatten`
[INFO] [stderr]   --> src/updatable.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     flatten: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `UpdatableFieldOptions` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/updatable.rs:66:10
[INFO] [stderr]    |
[INFO] [stderr] 66 | #[derive(Debug, Default)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `bigml_derive` (lib) generated 1 warning
[INFO] [stderr] warning: `bigml_derive` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bigml_derive-101c0b61086e93be)
[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 bigml_derive
[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] running `Command { std: "docker" "inspect" "3b1524ee6eb400b12f49d046ca33eeba5383750b923430e159bf4bf33ed6ee87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b1524ee6eb400b12f49d046ca33eeba5383750b923430e159bf4bf33ed6ee87", kill_on_drop: false }`
[INFO] [stdout] 3b1524ee6eb400b12f49d046ca33eeba5383750b923430e159bf4bf33ed6ee87