Dec 17 18:39:07.230 INFO checking nojima/qurl against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 18:39:07.230 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/nojima/qurl:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 18:39:07.390 INFO [stdout] dd39c3ca171b1843bdc3476f7d5df38f93cbe2c1312cbcb8b47fc2cd92b64ef9
Dec 17 18:39:07.392 INFO running `"docker" "start" "-a" "dd39c3ca171b1843bdc3476f7d5df38f93cbe2c1312cbcb8b47fc2cd92b64ef9"`
Dec 17 18:39:08.084 INFO [stderr]     Checking qurl v0.1.0 (/opt/crater/workdir)
Dec 17 18:39:08.903 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.903 INFO [stderr]   --> src/yaml_to_json.rs:71:13
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr] 71 |             write!(out, "{}", real);
Dec 17 18:39:08.903 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 18:39:08.903 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.903 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)
Dec 17 18:39:08.903 INFO [stderr] 
Dec 17 18:39:08.903 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.903 INFO [stderr]   --> src/yaml_to_json.rs:74:13
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr] 74 |             write!(out, "{}", integer);
Dec 17 18:39:08.903 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.903 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)
Dec 17 18:39:08.903 INFO [stderr] 
Dec 17 18:39:08.903 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.903 INFO [stderr]   --> src/yaml_to_json.rs:80:13
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr] 80 |             write!(out, "{}", boolean);
Dec 17 18:39:08.903 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.903 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)
Dec 17 18:39:08.903 INFO [stderr] 
Dec 17 18:39:08.903 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.903 INFO [stderr]   --> src/yaml_to_json.rs:83:13
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr] 83 |             write!(out, "[");
Dec 17 18:39:08.903 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.903 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)
Dec 17 18:39:08.903 INFO [stderr] 
Dec 17 18:39:08.903 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.903 INFO [stderr]   --> src/yaml_to_json.rs:90:21
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr] 90 |                     write!(out, ",");
Dec 17 18:39:08.903 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.903 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)
Dec 17 18:39:08.903 INFO [stderr] 
Dec 17 18:39:08.903 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.903 INFO [stderr]   --> src/yaml_to_json.rs:95:13
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr] 95 |             write!(out, "]");
Dec 17 18:39:08.903 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.903 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)
Dec 17 18:39:08.903 INFO [stderr] 
Dec 17 18:39:08.903 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.903 INFO [stderr]   --> src/yaml_to_json.rs:98:13
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr] 98 |             write!(out, "{{");
Dec 17 18:39:08.903 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.903 INFO [stderr]    |
Dec 17 18:39:08.903 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.903 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)
Dec 17 18:39:08.903 INFO [stderr] 
Dec 17 18:39:08.903 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.903 INFO [stderr]    --> src/yaml_to_json.rs:105:21
Dec 17 18:39:08.903 INFO [stderr]     |
Dec 17 18:39:08.903 INFO [stderr] 105 |                     write!(out, ",");
Dec 17 18:39:08.903 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.903 INFO [stderr]     |
Dec 17 18:39:08.903 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.904 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)
Dec 17 18:39:08.904 INFO [stderr] 
Dec 17 18:39:08.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.904 INFO [stderr]    --> src/yaml_to_json.rs:109:21
Dec 17 18:39:08.904 INFO [stderr]     |
Dec 17 18:39:08.904 INFO [stderr] 109 |                     write!(out, ":");
Dec 17 18:39:08.904 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.904 INFO [stderr]     |
Dec 17 18:39:08.904 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.904 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)
Dec 17 18:39:08.904 INFO [stderr] 
Dec 17 18:39:08.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.904 INFO [stderr]    --> src/yaml_to_json.rs:115:13
Dec 17 18:39:08.904 INFO [stderr]     |
Dec 17 18:39:08.904 INFO [stderr] 115 |             write!(out, "}}");
Dec 17 18:39:08.904 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.904 INFO [stderr]     |
Dec 17 18:39:08.904 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.904 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)
Dec 17 18:39:08.904 INFO [stderr] 
Dec 17 18:39:08.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:08.904 INFO [stderr]    --> src/yaml_to_json.rs:118:13
Dec 17 18:39:08.904 INFO [stderr]     |
Dec 17 18:39:08.904 INFO [stderr] 118 |             write!(out, "null");
Dec 17 18:39:08.904 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
Dec 17 18:39:08.904 INFO [stderr]     |
Dec 17 18:39:08.904 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:08.904 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)
Dec 17 18:39:08.905 INFO [stderr] 
Dec 17 18:39:09.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.036 INFO [stderr]   --> src/yaml_to_json.rs:71:13
Dec 17 18:39:09.036 INFO [stderr]    |
Dec 17 18:39:09.036 INFO [stderr] 71 |             write!(out, "{}", real);
Dec 17 18:39:09.036 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.036 INFO [stderr]    |
Dec 17 18:39:09.036 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 18:39:09.036 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.036 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)
Dec 17 18:39:09.036 INFO [stderr] 
Dec 17 18:39:09.036 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.036 INFO [stderr]   --> src/yaml_to_json.rs:74:13
Dec 17 18:39:09.036 INFO [stderr]    |
Dec 17 18:39:09.036 INFO [stderr] 74 |             write!(out, "{}", integer);
Dec 17 18:39:09.036 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.036 INFO [stderr]    |
Dec 17 18:39:09.036 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.036 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)
Dec 17 18:39:09.037 INFO [stderr] 
Dec 17 18:39:09.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.037 INFO [stderr]   --> src/yaml_to_json.rs:80:13
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr] 80 |             write!(out, "{}", boolean);
Dec 17 18:39:09.037 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.037 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)
Dec 17 18:39:09.037 INFO [stderr] 
Dec 17 18:39:09.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.037 INFO [stderr]   --> src/yaml_to_json.rs:83:13
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr] 83 |             write!(out, "[");
Dec 17 18:39:09.037 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.037 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)
Dec 17 18:39:09.037 INFO [stderr] 
Dec 17 18:39:09.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.037 INFO [stderr]   --> src/yaml_to_json.rs:90:21
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr] 90 |                     write!(out, ",");
Dec 17 18:39:09.037 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.037 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)
Dec 17 18:39:09.037 INFO [stderr] 
Dec 17 18:39:09.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.037 INFO [stderr]   --> src/yaml_to_json.rs:95:13
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr] 95 |             write!(out, "]");
Dec 17 18:39:09.037 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.037 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)
Dec 17 18:39:09.037 INFO [stderr] 
Dec 17 18:39:09.037 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.037 INFO [stderr]   --> src/yaml_to_json.rs:98:13
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr] 98 |             write!(out, "{{");
Dec 17 18:39:09.037 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.037 INFO [stderr]    |
Dec 17 18:39:09.037 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.037 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)
Dec 17 18:39:09.038 INFO [stderr] 
Dec 17 18:39:09.039 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.039 INFO [stderr]    --> src/yaml_to_json.rs:105:21
Dec 17 18:39:09.039 INFO [stderr]     |
Dec 17 18:39:09.039 INFO [stderr] 105 |                     write!(out, ",");
Dec 17 18:39:09.039 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.039 INFO [stderr]     |
Dec 17 18:39:09.039 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.039 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)
Dec 17 18:39:09.039 INFO [stderr] 
Dec 17 18:39:09.039 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.039 INFO [stderr]    --> src/yaml_to_json.rs:109:21
Dec 17 18:39:09.039 INFO [stderr]     |
Dec 17 18:39:09.039 INFO [stderr] 109 |                     write!(out, ":");
Dec 17 18:39:09.039 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.039 INFO [stderr]     |
Dec 17 18:39:09.039 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.039 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)
Dec 17 18:39:09.039 INFO [stderr] 
Dec 17 18:39:09.039 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.039 INFO [stderr]    --> src/yaml_to_json.rs:115:13
Dec 17 18:39:09.039 INFO [stderr]     |
Dec 17 18:39:09.039 INFO [stderr] 115 |             write!(out, "}}");
Dec 17 18:39:09.039 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.039 INFO [stderr]     |
Dec 17 18:39:09.039 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.039 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)
Dec 17 18:39:09.039 INFO [stderr] 
Dec 17 18:39:09.039 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:39:09.039 INFO [stderr]    --> src/yaml_to_json.rs:118:13
Dec 17 18:39:09.039 INFO [stderr]     |
Dec 17 18:39:09.039 INFO [stderr] 118 |             write!(out, "null");
Dec 17 18:39:09.039 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
Dec 17 18:39:09.039 INFO [stderr]     |
Dec 17 18:39:09.039 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:39:09.039 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)
Dec 17 18:39:09.039 INFO [stderr] 
Dec 17 18:39:09.083 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
Dec 17 18:39:09.758 INFO running `"docker" "inspect" "dd39c3ca171b1843bdc3476f7d5df38f93cbe2c1312cbcb8b47fc2cd92b64ef9"`
Dec 17 18:39:09.972 INFO running `"docker" "rm" "-f" "dd39c3ca171b1843bdc3476f7d5df38f93cbe2c1312cbcb8b47fc2cd92b64ef9"`
Dec 17 18:39:10.108 INFO [stdout] dd39c3ca171b1843bdc3476f7d5df38f93cbe2c1312cbcb8b47fc2cd92b64ef9