[INFO] fetching crate utf8-chars 1.0.0...
[INFO] testing utf8-chars-1.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate utf8-chars 1.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate utf8-chars 1.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf8-chars 1.0.0
[INFO] finished tweaking crates.io crate utf8-chars 1.0.0
[INFO] tweaked toml for crates.io crate utf8-chars 1.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0a8eba94481215be72edb4186ce4e3eb26a32fae17d8e4a74839c0a64c45148
[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" "b0a8eba94481215be72edb4186ce4e3eb26a32fae17d8e4a74839c0a64c45148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0a8eba94481215be72edb4186ce4e3eb26a32fae17d8e4a74839c0a64c45148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a8eba94481215be72edb4186ce4e3eb26a32fae17d8e4a74839c0a64c45148", kill_on_drop: false }`
[INFO] [stdout] b0a8eba94481215be72edb4186ce4e3eb26a32fae17d8e4a74839c0a64c45148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da3b28bec61462e65517bc93ff6388cea7febfea05a901bb4f14a285316a9a56
[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" "da3b28bec61462e65517bc93ff6388cea7febfea05a901bb4f14a285316a9a56", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8-chars v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "da3b28bec61462e65517bc93ff6388cea7febfea05a901bb4f14a285316a9a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da3b28bec61462e65517bc93ff6388cea7febfea05a901bb4f14a285316a9a56", kill_on_drop: false }`
[INFO] [stdout] da3b28bec61462e65517bc93ff6388cea7febfea05a901bb4f14a285316a9a56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72c69d02433e674b64d767f1ed97ad664eb399ef9c748451e2e999a6880b1260
[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" "72c69d02433e674b64d767f1ed97ad664eb399ef9c748451e2e999a6880b1260", kill_on_drop: false }`
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling utf8-chars v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `Command { std: "docker" "inspect" "72c69d02433e674b64d767f1ed97ad664eb399ef9c748451e2e999a6880b1260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72c69d02433e674b64d767f1ed97ad664eb399ef9c748451e2e999a6880b1260", kill_on_drop: false }`
[INFO] [stdout] 72c69d02433e674b64d767f1ed97ad664eb399ef9c748451e2e999a6880b1260
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d59bd4f94e48d70d54d81ff42082c58554ba69b349af85e4182f07d256fd2db6
[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" "d59bd4f94e48d70d54d81ff42082c58554ba69b349af85e4182f07d256fd2db6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/utf8_chars-c066e50aa5165bb3
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test tests::do_not_take_extra_bytes ... ok
[INFO] [stdout] test tests::edgecase_one_two_bytes ... ok
[INFO] [stdout] test tests::edgecase_four_bytes_max ... ok
[INFO] [stdout] test tests::edgecase_three_four_bytes ... ok
[INFO] [stdout] test tests::edgecase_two_three_bytes ... ok
[INFO] [stdout] test tests::read_io_valid_unicode ... ok
[INFO] [stdout] test tests::read_invalid_sequences ... ok
[INFO] [stdout] test tests::read_io_incomplete_twobyte ... ok
[INFO] [stdout] test tests::read_io_value_out_of_range ... ok
[INFO] [stdout] test tests::read_surrogate ... ok
[INFO] [stdout] test tests::read_io_incomplete_threebyte ... ok
[INFO] [stdout] test tests::read_valid_unicode ... ok
[INFO] [stdout] test tests::read_valid_unicode_from_dyn_read ... ok
[INFO] [stdout] test tests::read_value_out_of_range ... ok
[INFO] [stdout] test tests::read_array ... ok
[INFO] [stdout] test tests::read_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests utf8-chars
[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] running `Command { std: "docker" "inspect" "d59bd4f94e48d70d54d81ff42082c58554ba69b349af85e4182f07d256fd2db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d59bd4f94e48d70d54d81ff42082c58554ba69b349af85e4182f07d256fd2db6", kill_on_drop: false }`
[INFO] [stdout] d59bd4f94e48d70d54d81ff42082c58554ba69b349af85e4182f07d256fd2db6