Nov 27 23:32:22.233 INFO checking nojima/qurl against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 23:32:22.233 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 27 23:32:22.485 INFO [stdout] 087f3db8e4e348fb3bac990b84e2a6bce48c51f72ee659ef70f1d92e2b2d6428
Nov 27 23:32:22.485 INFO running `"docker" "start" "-a" "087f3db8e4e348fb3bac990b84e2a6bce48c51f72ee659ef70f1d92e2b2d6428"`
Nov 27 23:32:22.896 INFO [stderr] usermod: no changes
Nov 27 23:32:22.919 INFO [stderr]     Blocking waiting for file lock on the registry index
Nov 27 23:32:23.258 INFO [stderr]     Checking qurl v0.1.0 (/source)
Nov 27 23:32:25.864 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.864 INFO [stderr]   --> src/yaml_to_json.rs:71:13
Nov 27 23:32:25.865 INFO [stderr]    |
Nov 27 23:32:25.865 INFO [stderr] 71 |             write!(out, "{}", real);
Nov 27 23:32:25.865 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.865 INFO [stderr]    |
Nov 27 23:32:25.865 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 23:32:25.866 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.866 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.866 INFO [stderr] 
Nov 27 23:32:25.867 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.867 INFO [stderr]   --> src/yaml_to_json.rs:74:13
Nov 27 23:32:25.867 INFO [stderr]    |
Nov 27 23:32:25.867 INFO [stderr] 74 |             write!(out, "{}", integer);
Nov 27 23:32:25.867 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.867 INFO [stderr]    |
Nov 27 23:32:25.868 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.868 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.868 INFO [stderr] 
Nov 27 23:32:25.868 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.869 INFO [stderr]   --> src/yaml_to_json.rs:80:13
Nov 27 23:32:25.869 INFO [stderr]    |
Nov 27 23:32:25.869 INFO [stderr] 80 |             write!(out, "{}", boolean);
Nov 27 23:32:25.869 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.869 INFO [stderr]    |
Nov 27 23:32:25.870 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.870 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.870 INFO [stderr] 
Nov 27 23:32:25.870 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.871 INFO [stderr]   --> src/yaml_to_json.rs:83:13
Nov 27 23:32:25.871 INFO [stderr]    |
Nov 27 23:32:25.871 INFO [stderr] 83 |             write!(out, "[");
Nov 27 23:32:25.871 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.871 INFO [stderr]    |
Nov 27 23:32:25.871 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.871 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.871 INFO [stderr] 
Nov 27 23:32:25.871 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.872 INFO [stderr]   --> src/yaml_to_json.rs:90:21
Nov 27 23:32:25.872 INFO [stderr]    |
Nov 27 23:32:25.872 INFO [stderr] 90 |                     write!(out, ",");
Nov 27 23:32:25.872 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.872 INFO [stderr]    |
Nov 27 23:32:25.872 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.872 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.872 INFO [stderr] 
Nov 27 23:32:25.872 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.872 INFO [stderr]   --> src/yaml_to_json.rs:95:13
Nov 27 23:32:25.872 INFO [stderr]    |
Nov 27 23:32:25.872 INFO [stderr] 95 |             write!(out, "]");
Nov 27 23:32:25.872 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.872 INFO [stderr]    |
Nov 27 23:32:25.872 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.873 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.873 INFO [stderr] 
Nov 27 23:32:25.873 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.873 INFO [stderr]   --> src/yaml_to_json.rs:98:13
Nov 27 23:32:25.873 INFO [stderr]    |
Nov 27 23:32:25.873 INFO [stderr] 98 |             write!(out, "{{");
Nov 27 23:32:25.873 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.873 INFO [stderr]    |
Nov 27 23:32:25.873 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.873 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.873 INFO [stderr] 
Nov 27 23:32:25.873 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.873 INFO [stderr]    --> src/yaml_to_json.rs:105:21
Nov 27 23:32:25.874 INFO [stderr]     |
Nov 27 23:32:25.874 INFO [stderr] 105 |                     write!(out, ",");
Nov 27 23:32:25.874 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.874 INFO [stderr]     |
Nov 27 23:32:25.874 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.874 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.874 INFO [stderr] 
Nov 27 23:32:25.874 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.874 INFO [stderr]    --> src/yaml_to_json.rs:109:21
Nov 27 23:32:25.874 INFO [stderr]     |
Nov 27 23:32:25.874 INFO [stderr] 109 |                     write!(out, ":");
Nov 27 23:32:25.874 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.874 INFO [stderr]     |
Nov 27 23:32:25.874 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.875 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.875 INFO [stderr] 
Nov 27 23:32:25.875 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.875 INFO [stderr]    --> src/yaml_to_json.rs:115:13
Nov 27 23:32:25.875 INFO [stderr]     |
Nov 27 23:32:25.875 INFO [stderr] 115 |             write!(out, "}}");
Nov 27 23:32:25.875 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.875 INFO [stderr]     |
Nov 27 23:32:25.875 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.875 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.875 INFO [stderr] 
Nov 27 23:32:25.875 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:25.875 INFO [stderr]    --> src/yaml_to_json.rs:118:13
Nov 27 23:32:25.876 INFO [stderr]     |
Nov 27 23:32:25.876 INFO [stderr] 118 |             write!(out, "null");
Nov 27 23:32:25.876 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
Nov 27 23:32:25.876 INFO [stderr]     |
Nov 27 23:32:25.876 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:25.876 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:25.876 INFO [stderr] 
Nov 27 23:32:26.272 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.272 INFO [stderr]   --> src/yaml_to_json.rs:71:13
Nov 27 23:32:26.272 INFO [stderr]    |
Nov 27 23:32:26.272 INFO [stderr] 71 |             write!(out, "{}", real);
Nov 27 23:32:26.272 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 23:32:26.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]   --> src/yaml_to_json.rs:74:13
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr] 74 |             write!(out, "{}", integer);
Nov 27 23:32:26.273 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]   --> src/yaml_to_json.rs:80:13
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr] 80 |             write!(out, "{}", boolean);
Nov 27 23:32:26.273 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]   --> src/yaml_to_json.rs:83:13
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr] 83 |             write!(out, "[");
Nov 27 23:32:26.273 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]   --> src/yaml_to_json.rs:90:21
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr] 90 |                     write!(out, ",");
Nov 27 23:32:26.273 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]   --> src/yaml_to_json.rs:95:13
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr] 95 |             write!(out, "]");
Nov 27 23:32:26.273 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]   --> src/yaml_to_json.rs:98:13
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr] 98 |             write!(out, "{{");
Nov 27 23:32:26.273 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]    |
Nov 27 23:32:26.273 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]    --> src/yaml_to_json.rs:105:21
Nov 27 23:32:26.273 INFO [stderr]     |
Nov 27 23:32:26.273 INFO [stderr] 105 |                     write!(out, ",");
Nov 27 23:32:26.273 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]     |
Nov 27 23:32:26.273 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]    --> src/yaml_to_json.rs:109:21
Nov 27 23:32:26.273 INFO [stderr]     |
Nov 27 23:32:26.273 INFO [stderr] 109 |                     write!(out, ":");
Nov 27 23:32:26.273 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]     |
Nov 27 23:32:26.273 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.273 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.273 INFO [stderr] 
Nov 27 23:32:26.273 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.273 INFO [stderr]    --> src/yaml_to_json.rs:115:13
Nov 27 23:32:26.273 INFO [stderr]     |
Nov 27 23:32:26.273 INFO [stderr] 115 |             write!(out, "}}");
Nov 27 23:32:26.273 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.273 INFO [stderr]     |
Nov 27 23:32:26.274 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.274 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.274 INFO [stderr] 
Nov 27 23:32:26.274 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 23:32:26.274 INFO [stderr]    --> src/yaml_to_json.rs:118:13
Nov 27 23:32:26.274 INFO [stderr]     |
Nov 27 23:32:26.274 INFO [stderr] 118 |             write!(out, "null");
Nov 27 23:32:26.274 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
Nov 27 23:32:26.274 INFO [stderr]     |
Nov 27 23:32:26.274 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 23:32:26.274 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 27 23:32:26.274 INFO [stderr] 
Nov 27 23:32:26.302 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.39s
Nov 27 23:32:26.315 INFO [stderr] su: No module specific data is present
Nov 27 23:32:27.096 INFO running `"docker" "inspect" "087f3db8e4e348fb3bac990b84e2a6bce48c51f72ee659ef70f1d92e2b2d6428"`
Nov 27 23:32:27.374 INFO running `"docker" "rm" "-f" "087f3db8e4e348fb3bac990b84e2a6bce48c51f72ee659ef70f1d92e2b2d6428"`
Nov 27 23:32:27.632 INFO [stdout] 087f3db8e4e348fb3bac990b84e2a6bce48c51f72ee659ef70f1d92e2b2d6428