[INFO] fetching crate marked 0.2.0...
[INFO] testing marked-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate marked 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate marked 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate marked 0.2.0
[INFO] finished tweaking crates.io crate marked 0.2.0
[INFO] tweaked toml for crates.io crate marked 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88abccfc4f3aba7c6894aa1a2ec86613e8c453e4047f045811a29c88c96e377d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "88abccfc4f3aba7c6894aa1a2ec86613e8c453e4047f045811a29c88c96e377d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88abccfc4f3aba7c6894aa1a2ec86613e8c453e4047f045811a29c88c96e377d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88abccfc4f3aba7c6894aa1a2ec86613e8c453e4047f045811a29c88c96e377d", kill_on_drop: false }`
[INFO] [stdout] 88abccfc4f3aba7c6894aa1a2ec86613e8c453e4047f045811a29c88c96e377d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97babfb19e037d9c48ee5389dc1b8975efe6bdbfc40fd471df27eef6b633c5dc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "97babfb19e037d9c48ee5389dc1b8975efe6bdbfc40fd471df27eef6b633c5dc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling marked v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/chars.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         mem::replace(st, ost.take().unwrap());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/dom.rs:396:9
[INFO] [stdout]     |
[INFO] [stdout] 396 |         mem::replace(&mut self.nodes, ndoc.nodes);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.31s
[INFO] running `Command { std: "docker" "inspect" "97babfb19e037d9c48ee5389dc1b8975efe6bdbfc40fd471df27eef6b633c5dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97babfb19e037d9c48ee5389dc1b8975efe6bdbfc40fd471df27eef6b633c5dc", kill_on_drop: false }`
[INFO] [stdout] 97babfb19e037d9c48ee5389dc1b8975efe6bdbfc40fd471df27eef6b633c5dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb09cf1b02328162d8f3248df901bbbd52a992941af02f493ce2b6bbed37437d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fb09cf1b02328162d8f3248df901bbbd52a992941af02f493ce2b6bbed37437d", kill_on_drop: false }`
[INFO] [stderr]    Compiling marked v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/chars.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         mem::replace(st, ost.take().unwrap());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/dom.rs:396:9
[INFO] [stdout]     |
[INFO] [stdout] 396 |         mem::replace(&mut self.nodes, ndoc.nodes);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.28s
[INFO] running `Command { std: "docker" "inspect" "fb09cf1b02328162d8f3248df901bbbd52a992941af02f493ce2b6bbed37437d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb09cf1b02328162d8f3248df901bbbd52a992941af02f493ce2b6bbed37437d", kill_on_drop: false }`
[INFO] [stdout] fb09cf1b02328162d8f3248df901bbbd52a992941af02f493ce2b6bbed37437d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ddcf25b355bca46d50ec844fd033bb3344515a7afa130bd00f6da9ad396fabdd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ddcf25b355bca46d50ec844fd033bb3344515a7afa130bd00f6da9ad396fabdd", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/chars.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         mem::replace(st, ost.take().unwrap());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/dom.rs:396:9
[INFO] [stderr]     |
[INFO] [stderr] 396 |         mem::replace(&mut self.nodes, ndoc.nodes);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/marked-271744175bed8187
[INFO] [stdout] running 62 tests
[INFO] [stdout] test chars::tests::replace ... ok
[INFO] [stdout] test chars::tests::replace_multibyte ... ok
[INFO] [stdout] test decode::tests::decode_koi8_u_encoding_rs ... ok
[INFO] [stdout] test dom::tests::element_attrs ... ok
[INFO] [stdout] test decode::encoding_hint::tests::test_send_sync ... ok
[INFO] [stdout] test decode::encoding_hint::tests::test_not_send_nor_sync ... ok
[INFO] [stdout] test decode::encoding_hint::tests::encoding_hint ... ok
[INFO] [stdout] test chars::tests::replace_trim_left ... ok
[INFO] [stdout] test dom::tests::element_attrs_dups ... ok
[INFO] [stdout] test dom::tests::empty_document ... ok
[INFO] [stdout] test dom::tests::mixed_text_no_root ... ok
[INFO] [stdout] test dom::tests::one_element ... ok
[INFO] [stdout] test chars::tests::test_char_class ... ok
[INFO] [stdout] test dom::tests::size_of ... ok
[INFO] [stdout] test chars::tests::replace_trim ... ok
[INFO] [stdout] test decode::tests::decode_windows_949_encoding_rs ... ok
[INFO] [stdout] test decode::encoding_hint::tests::could_read_from ... ok
[INFO] [stdout] test decode::encoding_hint::tests::could_read_from_multi_byte ... ok
[INFO] [stdout] test chars::tests::replace_ctrl_only ... ok
[INFO] [stdout] test dom::tests::test_append_deep_clone ... ok
[INFO] [stdout] test dom::tests::test_deep_clone ... ok
[INFO] [stdout] test dom::tests::test_detach_root ... ok
[INFO] [stdout] test decode::tests::decode_utf8_encoding_rs ... ok
[INFO] [stdout] test chars::tests::replace_trim_right ... ok
[INFO] [stdout] test dom::tests::test_empty_fragment ... ok
[INFO] [stdout] test dom::tests::test_documento_utf8 ... ok
[INFO] [stdout] test dom::tests::test_documento_utf16be_meta_utf16le ... ok
[INFO] [stdout] test dom::tests::test_documento_utf8_bom ... ok
[INFO] [stdout] test dom::tests::test_documento_utf8_meta ... ok
[INFO] [stdout] test dom::tests::test_documento_utf16le_bom ... ok
[INFO] [stdout] test dom::tests::test_documento_utf16le_meta_utf8 ... ok
[INFO] [stdout] test dom::tests::test_empty_inline ... ok
[INFO] [stdout] test dom::tests::test_detach_root_doctype ... ok
[INFO] [stdout] test dom::tests::test_html_attr ... ok
[INFO] [stdout] test dom::tests::test_inline_fragment ... ok
[INFO] [stdout] test dom::tests::test_img_decoding_unknown ... ok
[INFO] [stdout] test dom::tests::test_empty_tag ... ok
[INFO] [stdout] test dom::tests::test_documento_utf8_meta_utf16 ... ok
[INFO] [stdout] test dom::tests::test_fold_filter_breadth ... ok
[INFO] [stdout] test dom::tests::test_parsed_attrs ... ok
[INFO] [stdout] test dom::tests::test_plaintext ... ok
[INFO] [stdout] test dom::tests::test_remove_filter ... ok
[INFO] [stdout] test dom::tests::test_filter_chain ... ok
[INFO] [stdout] test dom::tests::test_fold_filter ... ok
[INFO] [stdout] test dom::tests::test_select ... ok
[INFO] [stdout] test dom::tests::test_remove_filter_breadth ... ok
[INFO] [stdout] test dom::tests::test_documento_utf16be_bom ... ok
[INFO] [stdout] test dom::tests::test_shallow_fragment ... ok
[INFO] [stdout] test dom::tests::test_tag_metadata ... ok
[INFO] [stdout] test dom::tests::test_documento_utf16le ... ok
[INFO] [stdout] test logger::tests::log_setup ... ok
[INFO] [stdout] test dom::tests::test_documento_windows1252_meta ... ok
[INFO] [stdout] test dom::tests::test_xmp ... ok
[INFO] [stdout] test dom::tests::test_select_children ... ok
[INFO] [stdout] test dom::tests::test_text_fragment ... ok
[INFO] [stdout] test dom::tests::suitable_parent_asserted ... ok
[INFO] [stdout] test dom::tests::redundant_document_node_asserted ... ok
[INFO] [stdout] test dom::tests::test_iro0094_shiftjis_meta ... ok
[INFO] [stdout] test dom::tests::test_russez_windows1251_meta ... ok
[INFO] [stdout] test dom::tests::test_matsunami_eucjp_meta ... ok
[INFO] [stdout] test dom::tests::test_filter_chain_large_sample ... ok
[INFO] [stdout] test dom::tests::test_filter_chain_large_sample_breadth ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 62 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.90s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ddcf25b355bca46d50ec844fd033bb3344515a7afa130bd00f6da9ad396fabdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddcf25b355bca46d50ec844fd033bb3344515a7afa130bd00f6da9ad396fabdd", kill_on_drop: false }`
[INFO] [stdout] ddcf25b355bca46d50ec844fd033bb3344515a7afa130bd00f6da9ad396fabdd