[INFO] fetching crate treerder 4.0.1...
[INFO] testing treerder-4.0.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate treerder 4.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate treerder 4.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate treerder 4.0.1
[INFO] tweaked toml for crates.io crate treerder 4.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate treerder 4.0.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate treerder 4.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c8b95b7a2d5aa88bf2860f78159ce5959f13f0efa2946cc4a74c34d87398332
[INFO] running `Command { std: "docker" "start" "-a" "9c8b95b7a2d5aa88bf2860f78159ce5959f13f0efa2946cc4a74c34d87398332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c8b95b7a2d5aa88bf2860f78159ce5959f13f0efa2946cc4a74c34d87398332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c8b95b7a2d5aa88bf2860f78159ce5959f13f0efa2946cc4a74c34d87398332", kill_on_drop: false }`
[INFO] [stdout] 9c8b95b7a2d5aa88bf2860f78159ce5959f13f0efa2946cc4a74c34d87398332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4af10cf3a57107cfa35d9eaf76c55a8c85e3339259b1be91776a4c1f8fe77db
[INFO] running `Command { std: "docker" "start" "-a" "c4af10cf3a57107cfa35d9eaf76c55a8c85e3339259b1be91776a4c1f8fe77db", kill_on_drop: false }`
[INFO] [stderr]    Compiling treerder v4.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "c4af10cf3a57107cfa35d9eaf76c55a8c85e3339259b1be91776a4c1f8fe77db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4af10cf3a57107cfa35d9eaf76c55a8c85e3339259b1be91776a4c1f8fe77db", kill_on_drop: false }`
[INFO] [stdout] c4af10cf3a57107cfa35d9eaf76c55a8c85e3339259b1be91776a4c1f8fe77db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b23a0abe90b4aec71270b3f180c1e0691ce6033b7ccd8103a2fd0cfd77ce7905
[INFO] running `Command { std: "docker" "start" "-a" "b23a0abe90b4aec71270b3f180c1e0691ce6033b7ccd8103a2fd0cfd77ce7905", kill_on_drop: false }`
[INFO] [stderr]    Compiling treerder v4.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "b23a0abe90b4aec71270b3f180c1e0691ce6033b7ccd8103a2fd0cfd77ce7905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b23a0abe90b4aec71270b3f180c1e0691ce6033b7ccd8103a2fd0cfd77ce7905", kill_on_drop: false }`
[INFO] [stdout] b23a0abe90b4aec71270b3f180c1e0691ce6033b7ccd8103a2fd0cfd77ce7905
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ab15578d36350998ec960e1fa8a5cca478921f7074ccd6307e211723c1373f6
[INFO] running `Command { std: "docker" "start" "-a" "7ab15578d36350998ec960e1fa8a5cca478921f7074ccd6307e211723c1373f6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/treerder-2dbe7a3690060f50)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests_of_units::ab::ab ... ok
[INFO] [stdout] test tests_of_units::ab::zero_len ... ok
[INFO] [stdout] test tests_of_units::english_letters::ix::ixes ... ok
[INFO] [stdout] test tests_of_units::exc::basic_test ... ok
[INFO] [stdout] test tests_of_units::exc::in_depth_recursion ... ok
[INFO] [stdout] test tests_of_units::exc::nesting ... ok
[INFO] [stdout] test tests_of_units::letter::new ... ok
[INFO] [stdout] test tests_of_units::exc::no_double_drop ... ok
[INFO] [stdout] test tests_of_units::readme::test ... ok
[INFO] [stdout] test tests_of_units::treerder::ins::double_insert ... ok
[INFO] [stdout] test tests_of_units::readme::test2 ... ok
[INFO] [stdout] test tests_of_units::treerder::ins::new_path ... ok
[INFO] [stdout] test tests_of_units::treerder::order::basic_test ... ok
[INFO] [stdout] test tests_of_units::treerder::new ... ok
[INFO] [stdout] test tests_of_units::treerder::new_with ... ok
[INFO] [stdout] test tests_of_units::treerder::order::load ... ok
[INFO] [stdout] test tests_of_units::treerder::order::stability ... ok
[INFO] [stdout] test tests_of_units::treerder::order::no_mem_troubles ... ok
[INFO] [stdout] test tests_of_units::english_letters::ix::unsupported_char ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-d7b2054208365d07)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests treerder
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Orderable (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ab15578d36350998ec960e1fa8a5cca478921f7074ccd6307e211723c1373f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ab15578d36350998ec960e1fa8a5cca478921f7074ccd6307e211723c1373f6", kill_on_drop: false }`
[INFO] [stdout] 7ab15578d36350998ec960e1fa8a5cca478921f7074ccd6307e211723c1373f6