[INFO] fetching crate d4t4 0.2.2...
[INFO] testing d4t4-0.2.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate d4t4 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate d4t4 0.2.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate d4t4 0.2.2
[INFO] finished tweaking crates.io crate d4t4 0.2.2
[INFO] tweaked toml for crates.io crate d4t4 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25085dec0b60bb234beef156ee65b3f1218de1e96c0fde5a4e0969ac3e1b589d
[INFO] running `Command { std: "docker" "start" "-a" "25085dec0b60bb234beef156ee65b3f1218de1e96c0fde5a4e0969ac3e1b589d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25085dec0b60bb234beef156ee65b3f1218de1e96c0fde5a4e0969ac3e1b589d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25085dec0b60bb234beef156ee65b3f1218de1e96c0fde5a4e0969ac3e1b589d", kill_on_drop: false }`
[INFO] [stdout] 25085dec0b60bb234beef156ee65b3f1218de1e96c0fde5a4e0969ac3e1b589d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5697d2cc02f4d7bb76b3aeaf81d1cdb8d6b0edd89c8730c00de291429faaa44
[INFO] running `Command { std: "docker" "start" "-a" "d5697d2cc02f4d7bb76b3aeaf81d1cdb8d6b0edd89c8730c00de291429faaa44", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling d4t4 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.99s
[INFO] running `Command { std: "docker" "inspect" "d5697d2cc02f4d7bb76b3aeaf81d1cdb8d6b0edd89c8730c00de291429faaa44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5697d2cc02f4d7bb76b3aeaf81d1cdb8d6b0edd89c8730c00de291429faaa44", kill_on_drop: false }`
[INFO] [stdout] d5697d2cc02f4d7bb76b3aeaf81d1cdb8d6b0edd89c8730c00de291429faaa44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f05215fd2dde4e9ab0d1862b62cc3c3db57ab687e7291805705fb74e75eb39e6
[INFO] running `Command { std: "docker" "start" "-a" "f05215fd2dde4e9ab0d1862b62cc3c3db57ab687e7291805705fb74e75eb39e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling serde_yaml v0.8.20
[INFO] [stderr]    Compiling console v0.11.3
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling insta v0.16.1
[INFO] [stderr]    Compiling indoc v0.3.6
[INFO] [stderr]    Compiling d4t4 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.57s
[INFO] running `Command { std: "docker" "inspect" "f05215fd2dde4e9ab0d1862b62cc3c3db57ab687e7291805705fb74e75eb39e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05215fd2dde4e9ab0d1862b62cc3c3db57ab687e7291805705fb74e75eb39e6", kill_on_drop: false }`
[INFO] [stdout] f05215fd2dde4e9ab0d1862b62cc3c3db57ab687e7291805705fb74e75eb39e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 53d468cbf9a6de5514a7a198198cde9c20814d08e40d6f3b96e9ca48086c136e
[INFO] running `Command { std: "docker" "start" "-a" "53d468cbf9a6de5514a7a198198cde9c20814d08e40d6f3b96e9ca48086c136e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/d4t4-5870addbbe0003af)
[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/comments.rs (/opt/rustwide/target/debug/deps/comments-143843bf43644cb3)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test it_can_parse_hash_comment ... ok
[INFO] [stdout] test it_can_parse_object_with_comment ... ok
[INFO] [stdout] test it_can_parse_object_with_multiline_comment ... ok
[INFO] [stdout] test it_can_parse_line_comment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/json.rs (/opt/rustwide/target/debug/deps/json-e870d20e05752cd6)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_can_parse_json ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/object_keys.rs (/opt/rustwide/target/debug/deps/object_keys-077dd275164f9719)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test it_errors_on_same_key ... ok
[INFO] [stdout] test it_can_parse_different_keys ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/quoting.rs (/opt/rustwide/target/debug/deps/quoting-158a7f8eb5ce7285)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test it_can_parse_double_inside_single_quotes ... ok
[INFO] [stdout] test it_can_parse_single_inside_double_quotes ... ok
[INFO] [stdout] test it_can_parse_single_with_escaped_single ... ok
[INFO] [stdout] test it_can_parse_mixed_quotations ... ok
[INFO] [stdout] test it_can_parse_double_quotes ... ok
[INFO] [stdout] test it_can_parse_double_with_escaped_double ... ok
[INFO] [stdout] test it_can_parse_single_quotes ... ok
[INFO] [stdout] 
[INFO] [stderr]      Running tests/references.rs (/opt/rustwide/target/debug/deps/references-e4553a5f029e18a0)
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test it_can_chain_references ... ignored
[INFO] [stdout] test it_can_extend_objects ... ignored
[INFO] [stdout] test it_can_reference_arrays ... ignored
[INFO] [stdout] test it_can_reference_objects ... ignored
[INFO] [stdout] test it_can_translate_bool_to_string ... ignored
[INFO] [stdout] test it_can_translate_float_to_string ... ignored
[INFO] [stdout] test it_can_translate_int_to_string ... ignored
[INFO] [stdout] test it_can_translate_null_to_string ... ignored
[INFO] [stdout] test it_thows_error_on_recursion ... ignored
[INFO] [stdout] test it_thows_error_when_reference_in_key ... ok
[INFO] [stdout] test it_thows_error_when_key_is_not_found_in_nested ... ok
[INFO] [stdout] test it_thows_error_when_key_is_not_found ... ok
[INFO] [stdout] test it_thows_error_when_referencing_arrays ... ok
[INFO] [stdout] test it_can_parse_nested_targets ... ok
[INFO] [stdout] test it_can_parse_deeply_nested_references ... ok
[INFO] [stdout] test it_can_parse_deeply_nested_targets ... ok
[INFO] [stdout] test it_can_parse_multiple_references ... ok
[INFO] [stdout] test it_can_parse_nested_references ... ok
[INFO] [stdout] test it_can_reference_from_within_array ... ok
[INFO] [stdout] test it_can_parse_references_at_root ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 9 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests d4t4
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "53d468cbf9a6de5514a7a198198cde9c20814d08e40d6f3b96e9ca48086c136e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53d468cbf9a6de5514a7a198198cde9c20814d08e40d6f3b96e9ca48086c136e", kill_on_drop: false }`
[INFO] [stdout] 53d468cbf9a6de5514a7a198198cde9c20814d08e40d6f3b96e9ca48086c136e