[INFO] fetching crate devault 0.1.0...
[INFO] testing devault-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate devault 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate devault 0.1.0 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 devault 0.1.0
[INFO] finished tweaking crates.io crate devault 0.1.0
[INFO] tweaked toml for crates.io crate devault 0.1.0 written to /workspace/builds/worker-13/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] 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] cb18c83c24145086dd9193b0a5d4d9d55434271538023bb102dd3a6e4124fc90
[INFO] running `Command { std: "docker" "start" "-a" "cb18c83c24145086dd9193b0a5d4d9d55434271538023bb102dd3a6e4124fc90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb18c83c24145086dd9193b0a5d4d9d55434271538023bb102dd3a6e4124fc90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb18c83c24145086dd9193b0a5d4d9d55434271538023bb102dd3a6e4124fc90", kill_on_drop: false }`
[INFO] [stdout] cb18c83c24145086dd9193b0a5d4d9d55434271538023bb102dd3a6e4124fc90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 9c83ff402e66a61527fde6584a5146e84d79ea90e1e0da1c58607edaf42aebb8
[INFO] running `Command { std: "docker" "start" "-a" "9c83ff402e66a61527fde6584a5146e84d79ea90e1e0da1c58607edaf42aebb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling devault v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "9c83ff402e66a61527fde6584a5146e84d79ea90e1e0da1c58607edaf42aebb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c83ff402e66a61527fde6584a5146e84d79ea90e1e0da1c58607edaf42aebb8", kill_on_drop: false }`
[INFO] [stdout] 9c83ff402e66a61527fde6584a5146e84d79ea90e1e0da1c58607edaf42aebb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 143692078f3aec898201e321bad92e58664994d16e638570dbbb119ee05a6348
[INFO] running `Command { std: "docker" "start" "-a" "143692078f3aec898201e321bad92e58664994d16e638570dbbb119ee05a6348", kill_on_drop: false }`
[INFO] [stderr]    Compiling devault v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]   --> tests/test_struct.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         b: i64,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Qux` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> tests/test_struct.rs:24:14
[INFO] [stdout]    |
[INFO] [stdout] 24 |     #[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 0.37s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/devault-d16ac16cb642f1a5)
[INFO] [stderr]   Executable tests/test_enum.rs (/opt/rustwide/target/debug/deps/test_enum-a79e5790726927c7)
[INFO] [stderr]   Executable tests/test_struct.rs (/opt/rustwide/target/debug/deps/test_struct-fe368454baf53fc5)
[INFO] running `Command { std: "docker" "inspect" "143692078f3aec898201e321bad92e58664994d16e638570dbbb119ee05a6348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "143692078f3aec898201e321bad92e58664994d16e638570dbbb119ee05a6348", kill_on_drop: false }`
[INFO] [stdout] 143692078f3aec898201e321bad92e58664994d16e638570dbbb119ee05a6348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 23fe17697b96deb80a6a6887e9169f898da771cf76a1f2c31b931563deb50306
[INFO] running `Command { std: "docker" "start" "-a" "23fe17697b96deb80a6a6887e9169f898da771cf76a1f2c31b931563deb50306", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]   --> tests/test_struct.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         b: i64,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Qux` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> tests/test_struct.rs:24:14
[INFO] [stderr]    |
[INFO] [stderr] 24 |     #[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: `devault` (test "test_struct") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/devault-d16ac16cb642f1a5)
[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]      Running tests/test_enum.rs (/opt/rustwide/target/debug/deps/test_enum-a79e5790726927c7)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_attr ... ok
[INFO] [stdout] test test_nested_attrs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_struct.rs (/opt/rustwide/target/debug/deps/test_struct-fe368454baf53fc5)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_attr ... ok
[INFO] [stdout] test test_nested_attrs ... ok
[INFO] [stdout] test test_no_attr ... ok
[INFO] [stdout] test test_unit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests devault
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 58) ... ok
[INFO] [stdout] test src/lib.rs - (line 40) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "23fe17697b96deb80a6a6887e9169f898da771cf76a1f2c31b931563deb50306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23fe17697b96deb80a6a6887e9169f898da771cf76a1f2c31b931563deb50306", kill_on_drop: false }`
[INFO] [stdout] 23fe17697b96deb80a6a6887e9169f898da771cf76a1f2c31b931563deb50306