[INFO] crate serde_with 1.3.1 is already in cache
[INFO] extracting crate serde_with 1.3.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/serde_with/1.3.1
[INFO] extracting crate serde_with 1.3.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serde_with/1.3.1
[INFO] validating manifest of serde_with-1.3.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of serde_with-1.3.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing serde_with-1.3.1
[INFO] finished frobbing serde_with-1.3.1
[INFO] frobbed toml for serde_with-1.3.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/serde_with/1.3.1/Cargo.toml
[INFO] started frobbing serde_with-1.3.1
[INFO] finished frobbing serde_with-1.3.1
[INFO] frobbed toml for serde_with-1.3.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serde_with/1.3.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing serde_with-1.3.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serde_with/1.3.1:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 30d73a92cbf714e1d70bd1de9087ff8d0927b04e4122792e7b5d1d54bb82c3de
[INFO] running `"docker" "start" "-a" "30d73a92cbf714e1d70bd1de9087ff8d0927b04e4122792e7b5d1d54bb82c3de"`
[INFO] [stderr]    Compiling serde_with_macros v1.0.1
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling serde_with v1.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.35s
[INFO] running `"docker" "inspect" "30d73a92cbf714e1d70bd1de9087ff8d0927b04e4122792e7b5d1d54bb82c3de"`
[INFO] running `"docker" "rm" "-f" "30d73a92cbf714e1d70bd1de9087ff8d0927b04e4122792e7b5d1d54bb82c3de"`
[INFO] [stdout] 30d73a92cbf714e1d70bd1de9087ff8d0927b04e4122792e7b5d1d54bb82c3de
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serde_with/1.3.1:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 333fd51dde5ffd98297a84d70176ea02378930a85372bee5f6589780b47e9c0a
[INFO] running `"docker" "start" "-a" "333fd51dde5ffd98297a84d70176ea02378930a85372bee5f6589780b47e9c0a"`
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling ron v0.4.2
[INFO] [stderr]    Compiling version-sync v0.7.0
[INFO] [stderr]    Compiling serde_with v1.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.25s
[INFO] running `"docker" "inspect" "333fd51dde5ffd98297a84d70176ea02378930a85372bee5f6589780b47e9c0a"`
[INFO] running `"docker" "rm" "-f" "333fd51dde5ffd98297a84d70176ea02378930a85372bee5f6589780b47e9c0a"`
[INFO] [stdout] 333fd51dde5ffd98297a84d70176ea02378930a85372bee5f6589780b47e9c0a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serde_with/1.3.1:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 00117da029a24cc6a1e25f00143ae9383e9391f941824d737288d95b2d6eac72
[INFO] running `"docker" "start" "-a" "00117da029a24cc6a1e25f00143ae9383e9391f941824d737288d95b2d6eac72"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serde_with-87355b73d23a59a5
[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/chrono-035d39222528f4df
[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] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust-7e8fbe99141b8fb9
[INFO] [stdout] running 14 tests
[INFO] [stdout] test prohibit_duplicate_value_btreeset ... ok
[INFO] [stdout] test duplicate_key_first_wins_btreemap ... ok
[INFO] [stdout] test prohibit_duplicate_value_btreemap ... ok
[INFO] [stdout] test duplicate_key_first_wins_hashmap ... ok
[INFO] [stdout] test tuple_list_as_map_linkedlist ... ok
[INFO] [stdout] test test_hashmap_as_tuple_list ... ok
[INFO] [stdout] test tuple_list_as_map_vec ... ok
[INFO] [stdout] test tuple_list_as_map_vecdeque ... ok
[INFO] [stdout] test string_collection_non_existing ... ok
[INFO] [stdout] test prohibit_duplicate_value_hashmap ... ok
[INFO] [stdout] test test_hashmap_as_tuple_list_fnv ... ok
[INFO] [stdout] test test_btreemap_as_tuple_list ... ok
[INFO] [stdout] test string_collection ... ok
[INFO] [stdout] test prohibit_duplicate_value_hashset ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/version_numbers-30915a52db9c7612
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_readme_deps_in_lib ... ok
[INFO] [stdout] test test_readme_deps ... ok
[INFO] [stdout] test test_html_root_url ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/with_prefix-5b5decb5930bd3eb
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_flatten_with_prefix ... ok
[INFO] [stdout] test test_plain_with_prefix ... ok
[INFO] [stderr]    Doc-tests serde_with
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test src/lib.rs -  (line 41) ... ok
[INFO] [stdout] test src/lib.rs -  (line 58) ... ok
[INFO] [stdout] test src/rust.rs - rust::double_option (line 327) ... ok
[INFO] [stdout] test src/rust.rs - rust::display_fromstr (line 26) ... ok
[INFO] [stdout] test src/rust.rs - rust::hashmap_as_tuple_list (line 966) ... ok
[INFO] [stdout] test src/rust.rs - rust::btreemap_as_tuple_list (line 1097) ... ok
[INFO] [stdout] test src/flatten_maybe.rs - flattened_maybe (line 14) ... ok
[INFO] [stdout] test src/rust.rs - rust::StringWithSeparator (line 233) ... ok
[INFO] [stdout] test src/rust.rs - rust::maps_duplicate_key_is_error (line 592) ... ok
[INFO] [stdout] test src/rust.rs - rust::hashmap_as_tuple_list (line 997) ... ok
[INFO] [stdout] test src/with_prefix.rs - with_prefix (line 31) ... ok
[INFO] [stdout] test src/rust.rs - rust::sets_duplicate_value_is_error (line 495) ... ok
[INFO] [stdout] test src/rust.rs - rust::maps_first_key_wins (line 752) ... ok
[INFO] [stdout] test src/rust.rs - rust::seq_display_fromstr (line 109) ... ok
[INFO] [stdout] test src/rust.rs - rust::string_empty_as_none (line 850) ... ok
[INFO] [stdout] test src/rust.rs - rust::tuple_list_as_map (line 1192) ... ok
[INFO] [stdout] test src/rust.rs - rust::unwrap_or_skip (line 405) ... ok
[INFO] [stdout] test src/with_prefix.rs - with_prefix (line 47) ... ok
[INFO] [stdout] test src/rust.rs - rust::tuple_list_as_map (line 1235) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "00117da029a24cc6a1e25f00143ae9383e9391f941824d737288d95b2d6eac72"`
[INFO] running `"docker" "rm" "-f" "00117da029a24cc6a1e25f00143ae9383e9391f941824d737288d95b2d6eac72"`
[INFO] [stdout] 00117da029a24cc6a1e25f00143ae9383e9391f941824d737288d95b2d6eac72