[INFO] crate field-ref 0.2.0 is already in cache
[INFO] extracting crate field-ref 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/field-ref/0.2.0
[INFO] extracting crate field-ref 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/field-ref/0.2.0
[INFO] validating manifest of field-ref-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 field-ref-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 field-ref-0.2.0
[INFO] finished frobbing field-ref-0.2.0
[INFO] frobbed toml for field-ref-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/field-ref/0.2.0/Cargo.toml
[INFO] started frobbing field-ref-0.2.0
[INFO] finished frobbing field-ref-0.2.0
[INFO] frobbed toml for field-ref-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/field-ref/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 field-ref-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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/field-ref/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] 1aa8cd22356925dbb6eefbdce1ae46a8f8bf6713d3f7c90e5106db1d63a817a3
[INFO] running `"docker" "start" "-a" "1aa8cd22356925dbb6eefbdce1ae46a8f8bf6713d3f7c90e5106db1d63a817a3"`
[INFO] [stderr]    Compiling field-ref v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "1aa8cd22356925dbb6eefbdce1ae46a8f8bf6713d3f7c90e5106db1d63a817a3"`
[INFO] running `"docker" "rm" "-f" "1aa8cd22356925dbb6eefbdce1ae46a8f8bf6713d3f7c90e5106db1d63a817a3"`
[INFO] [stdout] 1aa8cd22356925dbb6eefbdce1ae46a8f8bf6713d3f7c90e5106db1d63a817a3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/field-ref/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] fabdbc1bee8cc0995898b46d74adb16dff5df9cdec59633a1f6806299b3042a4
[INFO] running `"docker" "start" "-a" "fabdbc1bee8cc0995898b46d74adb16dff5df9cdec59633a1f6806299b3042a4"`
[INFO] [stderr]    Compiling field-ref v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "fabdbc1bee8cc0995898b46d74adb16dff5df9cdec59633a1f6806299b3042a4"`
[INFO] running `"docker" "rm" "-f" "fabdbc1bee8cc0995898b46d74adb16dff5df9cdec59633a1f6806299b3042a4"`
[INFO] [stdout] fabdbc1bee8cc0995898b46d74adb16dff5df9cdec59633a1f6806299b3042a4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/field-ref/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] 8f252ee1ceaff14a779d115c197d01a3a95fbbaf3bced7ea0aa4ec08a145ad78
[INFO] running `"docker" "start" "-a" "8f252ee1ceaff14a779d115c197d01a3a95fbbaf3bced7ea0aa4ec08a145ad78"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/field_ref-491e5759d5fb74c9
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::basic_test ... ok
[INFO] [stdout] test tests::enum_field_basic_test ... ok
[INFO] [stdout] test tests::eq_test ... ok
[INFO] [stdout] test tests::ord_test ... ok
[INFO] [stdout] test tests::enum_field_enum_with_path_test ... ok
[INFO] [stdout] test tests::multi_level_test ... ok
[INFO] [stdout] test tests::debug_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests field-ref
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - FieldRef<T, U>::from_offset (line 108) ... ok
[INFO] [stdout] test src/lib.rs -  (line 8) ... ok
[INFO] [stdout] test src/lib.rs -  (line 45) ... ok
[INFO] [stdout] test src/lib.rs - FieldRef<T, U>::get (line 181) ... ok
[INFO] [stdout] test src/lib.rs - FieldRef<T, U>::chain (line 229) ... ok
[INFO] [stdout] test src/lib.rs - FieldRef<T, U>::get_mut (line 207) ... ok
[INFO] [stdout] test src/lib.rs - FieldRef<T, U>::from_references (line 154) ... ok
[INFO] [stdout] test src/lib.rs - FieldRef<T, U>::from_pointers (line 132) ... ok
[INFO] [stdout] test src/lib.rs - GetFieldMut::get_field_mut (line 538) ... ok
[INFO] [stdout] test src/lib.rs - GetField::get_field (line 481) ... ok
[INFO] [stdout] test src/lib.rs - OptionFieldRef::chain (line 353) ... ok
[INFO] [stdout] test src/lib.rs - field_ref_of (line 507) ... ok
[INFO] [stdout] test src/lib.rs - OptionFieldRef::get (line 303) ... ok
[INFO] [stdout] test src/lib.rs - OptionFieldRef::get_mut (line 328) ... ok
[INFO] [stdout] test src/lib.rs - opt_field_ref_of (line 590) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8f252ee1ceaff14a779d115c197d01a3a95fbbaf3bced7ea0aa4ec08a145ad78"`
[INFO] running `"docker" "rm" "-f" "8f252ee1ceaff14a779d115c197d01a3a95fbbaf3bced7ea0aa4ec08a145ad78"`
[INFO] [stdout] 8f252ee1ceaff14a779d115c197d01a3a95fbbaf3bced7ea0aa4ec08a145ad78