[INFO] fetching crate appendlist 1.4.0...
[INFO] testing appendlist-1.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate appendlist 1.4.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate appendlist 1.4.0 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 appendlist 1.4.0
[INFO] finished tweaking crates.io crate appendlist 1.4.0
[INFO] tweaked toml for crates.io crate appendlist 1.4.0 written to /workspace/builds/worker-12/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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 3905aa8b76ef60a7f9d616eac83c6821298d7b9ff91ff14f448577eec984b645
[INFO] running `Command { std: "docker" "start" "-a" "3905aa8b76ef60a7f9d616eac83c6821298d7b9ff91ff14f448577eec984b645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3905aa8b76ef60a7f9d616eac83c6821298d7b9ff91ff14f448577eec984b645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3905aa8b76ef60a7f9d616eac83c6821298d7b9ff91ff14f448577eec984b645", kill_on_drop: false }`
[INFO] [stdout] 3905aa8b76ef60a7f9d616eac83c6821298d7b9ff91ff14f448577eec984b645
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] abbc5f7b81626fd09a2ece1e3a54a3d768cb2bec02c18da89f9a35896f6fc017
[INFO] running `Command { std: "docker" "start" "-a" "abbc5f7b81626fd09a2ece1e3a54a3d768cb2bec02c18da89f9a35896f6fc017", kill_on_drop: false }`
[INFO] [stderr]    Compiling appendlist v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "abbc5f7b81626fd09a2ece1e3a54a3d768cb2bec02c18da89f9a35896f6fc017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abbc5f7b81626fd09a2ece1e3a54a3d768cb2bec02c18da89f9a35896f6fc017", kill_on_drop: false }`
[INFO] [stdout] abbc5f7b81626fd09a2ece1e3a54a3d768cb2bec02c18da89f9a35896f6fc017
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] abd201092b9e174e470abbf78d38b1e04aab420ff4eb1eb0d37f276dc5f25ad7
[INFO] running `Command { std: "docker" "start" "-a" "abd201092b9e174e470abbf78d38b1e04aab420ff4eb1eb0d37f276dc5f25ad7", kill_on_drop: false }`
[INFO] [stderr]    Compiling appendlist v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "abd201092b9e174e470abbf78d38b1e04aab420ff4eb1eb0d37f276dc5f25ad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd201092b9e174e470abbf78d38b1e04aab420ff4eb1eb0d37f276dc5f25ad7", kill_on_drop: false }`
[INFO] [stdout] abd201092b9e174e470abbf78d38b1e04aab420ff4eb1eb0d37f276dc5f25ad7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 5453d27adb0b8b5327bdc91dc9b277073e74c0226a5c9c877429fbf1fd1036aa
[INFO] running `Command { std: "docker" "start" "-a" "5453d27adb0b8b5327bdc91dc9b277073e74c0226a5c9c877429fbf1fd1036aa", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/appendlist-3a1054af74cb80ef)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test::chunk_sizes_make_sense ... ok
[INFO] [stdout] test test::equality ... ok
[INFO] [stdout] test test::empty_list ... ok
[INFO] [stdout] test test::from_iterator ... ok
[INFO] [stdout] test test::million_item_list ... ignored
[INFO] [stdout] test test::iterator_size_hint ... ok
[INFO] [stdout] test test::iterator ... ok
[INFO] [stdout] test test::thousand_item_list ... ok
[INFO] [stdout] test test::index_chunk_matches_up ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests appendlist
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 32) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 44) ... ok
[INFO] [stdout] test src/lib.rs - AppendList (line 124) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5453d27adb0b8b5327bdc91dc9b277073e74c0226a5c9c877429fbf1fd1036aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5453d27adb0b8b5327bdc91dc9b277073e74c0226a5c9c877429fbf1fd1036aa", kill_on_drop: false }`
[INFO] [stdout] 5453d27adb0b8b5327bdc91dc9b277073e74c0226a5c9c877429fbf1fd1036aa