[INFO] fetching crate fixed_width_derive 0.4.0...
[INFO] testing fixed_width_derive-0.4.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate fixed_width_derive 0.4.0 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate fixed_width_derive 0.4.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fixed_width_derive 0.4.0
[INFO] finished tweaking crates.io crate fixed_width_derive 0.4.0
[INFO] tweaked toml for crates.io crate fixed_width_derive 0.4.0 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c1f4b35f22bf788fa507ff2bc42372e92590a6f8c6628222d98a5dc6376eec6
[INFO] running `Command { std: "docker" "start" "-a" "8c1f4b35f22bf788fa507ff2bc42372e92590a6f8c6628222d98a5dc6376eec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c1f4b35f22bf788fa507ff2bc42372e92590a6f8c6628222d98a5dc6376eec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c1f4b35f22bf788fa507ff2bc42372e92590a6f8c6628222d98a5dc6376eec6", kill_on_drop: false }`
[INFO] [stdout] 8c1f4b35f22bf788fa507ff2bc42372e92590a6f8c6628222d98a5dc6376eec6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf029a2087713764211d838ff042d0a971628fdb80cd07b7bbf5ba33b256fdc5
[INFO] running `Command { std: "docker" "start" "-a" "bf029a2087713764211d838ff042d0a971628fdb80cd07b7bbf5ba33b256fdc5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling fixed_width v0.3.0
[INFO] [stderr]    Compiling fixed_width_derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.14s
[INFO] running `Command { std: "docker" "inspect" "bf029a2087713764211d838ff042d0a971628fdb80cd07b7bbf5ba33b256fdc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf029a2087713764211d838ff042d0a971628fdb80cd07b7bbf5ba33b256fdc5", kill_on_drop: false }`
[INFO] [stdout] bf029a2087713764211d838ff042d0a971628fdb80cd07b7bbf5ba33b256fdc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef9caf48a02a433ef9eb8d3bd19411a7e696f261c6fb20b2aa7fbd8e6926e475
[INFO] running `Command { std: "docker" "start" "-a" "ef9caf48a02a433ef9eb8d3bd19411a7e696f261c6fb20b2aa7fbd8e6926e475", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling fixed_width_derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `record_type`
[INFO] [stdout]   --> tests/integration_test.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub record_type: 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: `record_type`
[INFO] [stdout]   --> tests/integration_test.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub record_type: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `skipped`
[INFO] [stdout]   --> tests/integration_test.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub skipped: i64,
[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 6.78s
[INFO] running `Command { std: "docker" "inspect" "ef9caf48a02a433ef9eb8d3bd19411a7e696f261c6fb20b2aa7fbd8e6926e475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9caf48a02a433ef9eb8d3bd19411a7e696f261c6fb20b2aa7fbd8e6926e475", kill_on_drop: false }`
[INFO] [stdout] ef9caf48a02a433ef9eb8d3bd19411a7e696f261c6fb20b2aa7fbd8e6926e475
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92fd6347f7ce81ed9ea6e0ede65cd4e01ea9c7e8de4d7786754826807f300e9f
[INFO] running `Command { std: "docker" "start" "-a" "92fd6347f7ce81ed9ea6e0ede65cd4e01ea9c7e8de4d7786754826807f300e9f", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `record_type`
[INFO] [stderr]   --> tests/integration_test.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub record_type: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `record_type`
[INFO] [stderr]   --> tests/integration_test.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub record_type: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `skipped`
[INFO] [stderr]   --> tests/integration_test.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub skipped: i64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fixed_width_derive` (test "integration_test") generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fixed_width_derive-00785488c58a28dc)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-9818289c57746f13)
[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] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_deserialize ... ok
[INFO] [stdout] test test_deserialize_optionals ... ok
[INFO] [stdout] test test_multiple_record_types ... ok
[INFO] [stdout] test test_deserialize_with_skipped_fields ... ok
[INFO] [stdout] test test_deserialize_multiple ... ok
[INFO] [stdout] test test_serialize ... ok
[INFO] [stdout] test test_from_fixed_record_when_input_is_too_small ... ok
[INFO] [stdout] test test_serialize_optionals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fixed_width_derive
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 39) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92fd6347f7ce81ed9ea6e0ede65cd4e01ea9c7e8de4d7786754826807f300e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92fd6347f7ce81ed9ea6e0ede65cd4e01ea9c7e8de4d7786754826807f300e9f", kill_on_drop: false }`
[INFO] [stdout] 92fd6347f7ce81ed9ea6e0ede65cd4e01ea9c7e8de4d7786754826807f300e9f