[INFO] fetching crate bigml_derive 0.4.0...
[INFO] testing bigml_derive-0.4.0 against beta-2022-04-10 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 beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "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" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bd6410bf3f0d04ecde24eda8a6849c1e5f0e1efc29eedeef826fa7181298578
[INFO] running `Command { std: "docker" "start" "-a" "7bd6410bf3f0d04ecde24eda8a6849c1e5f0e1efc29eedeef826fa7181298578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bd6410bf3f0d04ecde24eda8a6849c1e5f0e1efc29eedeef826fa7181298578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bd6410bf3f0d04ecde24eda8a6849c1e5f0e1efc29eedeef826fa7181298578", kill_on_drop: false }`
[INFO] [stdout] 7bd6410bf3f0d04ecde24eda8a6849c1e5f0e1efc29eedeef826fa7181298578
[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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 584b409b617ef663d841977de3a3137a58d52ff278b439070a38b486164ec1af
[INFO] running `Command { std: "docker" "start" "-a" "584b409b617ef663d841977de3a3137a58d52ff278b439070a38b486164ec1af", 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 1.63s
[INFO] running `Command { std: "docker" "inspect" "584b409b617ef663d841977de3a3137a58d52ff278b439070a38b486164ec1af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584b409b617ef663d841977de3a3137a58d52ff278b439070a38b486164ec1af", kill_on_drop: false }`
[INFO] [stdout] 584b409b617ef663d841977de3a3137a58d52ff278b439070a38b486164ec1af
[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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7e8f4076e333fa62bc989ed601252a658f1508dfa215bf63059c31c81132d84
[INFO] running `Command { std: "docker" "start" "-a" "a7e8f4076e333fa62bc989ed601252a658f1508dfa215bf63059c31c81132d84", 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] [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 0.32s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/bigml_derive-1ac1c69d41455db0)
[INFO] running `Command { std: "docker" "inspect" "a7e8f4076e333fa62bc989ed601252a658f1508dfa215bf63059c31c81132d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e8f4076e333fa62bc989ed601252a658f1508dfa215bf63059c31c81132d84", kill_on_drop: false }`
[INFO] [stdout] a7e8f4076e333fa62bc989ed601252a658f1508dfa215bf63059c31c81132d84
[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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10c79ed7267d469b27a4803aa8d242f1bc7bdb8ff1c5fc1c68ec438f78c4176d
[INFO] running `Command { std: "docker" "start" "-a" "10c79ed7267d469b27a4803aa8d242f1bc7bdb8ff1c5fc1c68ec438f78c4176d", 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 src/lib.rs (/opt/rustwide/target/debug/deps/bigml_derive-1ac1c69d41455db0)
[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" "10c79ed7267d469b27a4803aa8d242f1bc7bdb8ff1c5fc1c68ec438f78c4176d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10c79ed7267d469b27a4803aa8d242f1bc7bdb8ff1c5fc1c68ec438f78c4176d", kill_on_drop: false }`
[INFO] [stdout] 10c79ed7267d469b27a4803aa8d242f1bc7bdb8ff1c5fc1c68ec438f78c4176d