[INFO] crate preftool-clap-derive 0.2.0 is already in cache
[INFO] extracting crate preftool-clap-derive 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/preftool-clap-derive/0.2.0
[INFO] extracting crate preftool-clap-derive 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool-clap-derive/0.2.0
[INFO] validating manifest of preftool-clap-derive-0.2.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of preftool-clap-derive-0.2.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing preftool-clap-derive-0.2.0
[INFO] finished frobbing preftool-clap-derive-0.2.0
[INFO] frobbed toml for preftool-clap-derive-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/preftool-clap-derive/0.2.0/Cargo.toml
[INFO] started frobbing preftool-clap-derive-0.2.0
[INFO] finished frobbing preftool-clap-derive-0.2.0
[INFO] frobbed toml for preftool-clap-derive-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool-clap-derive/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing preftool-clap-derive-0.2.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/preftool-clap-derive/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 0cdbdaeffff404e54961deb4df53ebae5ac82fc28430e66b3282088b12f1baa8
[INFO] running `"docker" "start" "-a" "0cdbdaeffff404e54961deb4df53ebae5ac82fc28430e66b3282088b12f1baa8"`
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling preftool-clap-derive v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `"docker" "inspect" "0cdbdaeffff404e54961deb4df53ebae5ac82fc28430e66b3282088b12f1baa8"`
[INFO] running `"docker" "rm" "-f" "0cdbdaeffff404e54961deb4df53ebae5ac82fc28430e66b3282088b12f1baa8"`
[INFO] [stdout] 0cdbdaeffff404e54961deb4df53ebae5ac82fc28430e66b3282088b12f1baa8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/preftool-clap-derive/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7431b52584cc0bd4447514dd1e22e6b98af13f97a3b7caf200fde8a6d7e52bc4
[INFO] running `"docker" "start" "-a" "7431b52584cc0bd4447514dd1e22e6b98af13f97a3b7caf200fde8a6d7e52bc4"`
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling preftool v0.2.0
[INFO] [stderr]    Compiling preftool-clap v0.2.0
[INFO] [stderr]    Compiling preftool-clap-derive v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `host`
[INFO] [stderr]  --> tests/nested.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   host: String,
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `port`
[INFO] [stderr]   --> tests/nested.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   port: usize,
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cert`
[INFO] [stderr]   --> tests/nested.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   cert: Option<String>,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `server`
[INFO] [stderr]   --> tests/nested.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   server: Server,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `host`
[INFO] [stderr]  --> tests/simple.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   host: String,
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `port`
[INFO] [stderr]   --> tests/simple.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   port: usize,
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cert`
[INFO] [stderr]   --> tests/simple.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   cert: Option<String>,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `binding`
[INFO] [stderr]   --> tests/enum.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |   binding: Binding,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.15s
[INFO] running `"docker" "inspect" "7431b52584cc0bd4447514dd1e22e6b98af13f97a3b7caf200fde8a6d7e52bc4"`
[INFO] running `"docker" "rm" "-f" "7431b52584cc0bd4447514dd1e22e6b98af13f97a3b7caf200fde8a6d7e52bc4"`
[INFO] [stdout] 7431b52584cc0bd4447514dd1e22e6b98af13f97a3b7caf200fde8a6d7e52bc4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/preftool-clap-derive/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 75a96b3c10b4bdfc8de3d38042fdc8f6cdebca92f15f8466243c80917ea77ac4
[INFO] running `"docker" "start" "-a" "75a96b3c10b4bdfc8de3d38042fdc8f6cdebca92f15f8466243c80917ea77ac4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/preftool_clap_derive-91099aeb84ae734e
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/enum-03edd5e7686ad50c
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test sets_host ... ok
[INFO] [stdout] test sets_all ... ok
[INFO] [stdout] test sets_port ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nested-6148516ac4af5943
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test sets_host ... ok
[INFO] [stdout] test sets_both ... ok
[INFO] [stdout] test sets_port ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/simple-a26aa6ca97780b28
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test sets_host ... ok
[INFO] [stdout] test sets_both ... ok
[INFO] [stdout] test sets_port ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests preftool-clap-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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "75a96b3c10b4bdfc8de3d38042fdc8f6cdebca92f15f8466243c80917ea77ac4"`
[INFO] running `"docker" "rm" "-f" "75a96b3c10b4bdfc8de3d38042fdc8f6cdebca92f15f8466243c80917ea77ac4"`
[INFO] [stdout] 75a96b3c10b4bdfc8de3d38042fdc8f6cdebca92f15f8466243c80917ea77ac4