Dec 19 11:43:43.198 INFO checking nojima/qurl against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 11:43:43.198 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:43:43.408 INFO [stdout] c9ecab10243e03b77a4d4a0abe522f0db04cb040fa4b55de15cdd9a34771b2a1
Dec 19 11:43:43.410 INFO running `"docker" "start" "-a" "c9ecab10243e03b77a4d4a0abe522f0db04cb040fa4b55de15cdd9a34771b2a1"`
Dec 19 11:43:44.184 INFO [stderr]     Checking tokio-threadpool v0.1.8
Dec 19 11:43:44.184 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 19 11:43:45.328 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 19 11:43:45.328 INFO [stderr]     Checking tokio-uds v0.2.3
Dec 19 11:43:45.328 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 19 11:43:46.888 INFO [stderr]     Checking tokio-fs v0.1.4
Dec 19 11:43:47.456 INFO [stderr]     Checking tokio v0.1.11
Dec 19 11:43:48.151 INFO [stderr]     Checking hyper v0.12.13
Dec 19 11:43:51.423 INFO [stderr]     Checking qurl v0.1.0 (/opt/crater/workdir)
Dec 19 11:43:52.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.143 INFO [stderr]   --> src/yaml_to_json.rs:71:13
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr] 71 |             write!(out, "{}", real);
Dec 19 11:43:52.143 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 11:43:52.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.143 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 19 11:43:52.143 INFO [stderr] 
Dec 19 11:43:52.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.143 INFO [stderr]   --> src/yaml_to_json.rs:74:13
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr] 74 |             write!(out, "{}", integer);
Dec 19 11:43:52.143 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.143 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 19 11:43:52.143 INFO [stderr] 
Dec 19 11:43:52.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.143 INFO [stderr]   --> src/yaml_to_json.rs:80:13
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr] 80 |             write!(out, "{}", boolean);
Dec 19 11:43:52.143 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.143 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 19 11:43:52.143 INFO [stderr] 
Dec 19 11:43:52.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.143 INFO [stderr]   --> src/yaml_to_json.rs:83:13
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr] 83 |             write!(out, "[");
Dec 19 11:43:52.143 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.143 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 19 11:43:52.143 INFO [stderr] 
Dec 19 11:43:52.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.143 INFO [stderr]   --> src/yaml_to_json.rs:90:21
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr] 90 |                     write!(out, ",");
Dec 19 11:43:52.143 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.143 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 19 11:43:52.143 INFO [stderr] 
Dec 19 11:43:52.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.143 INFO [stderr]   --> src/yaml_to_json.rs:95:13
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr] 95 |             write!(out, "]");
Dec 19 11:43:52.143 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.143 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 19 11:43:52.143 INFO [stderr] 
Dec 19 11:43:52.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.143 INFO [stderr]   --> src/yaml_to_json.rs:98:13
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr] 98 |             write!(out, "{{");
Dec 19 11:43:52.143 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.143 INFO [stderr]    |
Dec 19 11:43:52.143 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.143 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 19 11:43:52.143 INFO [stderr] 
Dec 19 11:43:52.143 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.143 INFO [stderr]    --> src/yaml_to_json.rs:105:21
Dec 19 11:43:52.143 INFO [stderr]     |
Dec 19 11:43:52.143 INFO [stderr] 105 |                     write!(out, ",");
Dec 19 11:43:52.143 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.144 INFO [stderr]     |
Dec 19 11:43:52.144 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.144 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 19 11:43:52.144 INFO [stderr] 
Dec 19 11:43:52.144 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.144 INFO [stderr]    --> src/yaml_to_json.rs:109:21
Dec 19 11:43:52.144 INFO [stderr]     |
Dec 19 11:43:52.144 INFO [stderr] 109 |                     write!(out, ":");
Dec 19 11:43:52.144 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.144 INFO [stderr]     |
Dec 19 11:43:52.144 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.144 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 19 11:43:52.144 INFO [stderr] 
Dec 19 11:43:52.144 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.144 INFO [stderr]    --> src/yaml_to_json.rs:115:13
Dec 19 11:43:52.144 INFO [stderr]     |
Dec 19 11:43:52.144 INFO [stderr] 115 |             write!(out, "}}");
Dec 19 11:43:52.144 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.144 INFO [stderr]     |
Dec 19 11:43:52.144 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.144 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 19 11:43:52.144 INFO [stderr] 
Dec 19 11:43:52.144 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.144 INFO [stderr]    --> src/yaml_to_json.rs:118:13
Dec 19 11:43:52.144 INFO [stderr]     |
Dec 19 11:43:52.144 INFO [stderr] 118 |             write!(out, "null");
Dec 19 11:43:52.144 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.144 INFO [stderr]     |
Dec 19 11:43:52.144 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.144 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 19 11:43:52.144 INFO [stderr] 
Dec 19 11:43:52.472 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.472 INFO [stderr]   --> src/yaml_to_json.rs:71:13
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr] 71 |             write!(out, "{}", real);
Dec 19 11:43:52.472 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 11:43:52.472 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.472 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 19 11:43:52.472 INFO [stderr] 
Dec 19 11:43:52.472 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.472 INFO [stderr]   --> src/yaml_to_json.rs:74:13
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr] 74 |             write!(out, "{}", integer);
Dec 19 11:43:52.472 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.472 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 19 11:43:52.472 INFO [stderr] 
Dec 19 11:43:52.472 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.472 INFO [stderr]   --> src/yaml_to_json.rs:80:13
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr] 80 |             write!(out, "{}", boolean);
Dec 19 11:43:52.472 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.472 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 19 11:43:52.472 INFO [stderr] 
Dec 19 11:43:52.472 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.472 INFO [stderr]   --> src/yaml_to_json.rs:83:13
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr] 83 |             write!(out, "[");
Dec 19 11:43:52.472 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.472 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 19 11:43:52.472 INFO [stderr] 
Dec 19 11:43:52.472 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.472 INFO [stderr]   --> src/yaml_to_json.rs:90:21
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr] 90 |                     write!(out, ",");
Dec 19 11:43:52.472 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.472 INFO [stderr]    |
Dec 19 11:43:52.472 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.473 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 19 11:43:52.473 INFO [stderr] 
Dec 19 11:43:52.473 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.473 INFO [stderr]   --> src/yaml_to_json.rs:95:13
Dec 19 11:43:52.473 INFO [stderr]    |
Dec 19 11:43:52.473 INFO [stderr] 95 |             write!(out, "]");
Dec 19 11:43:52.473 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.473 INFO [stderr]    |
Dec 19 11:43:52.473 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.473 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 19 11:43:52.473 INFO [stderr] 
Dec 19 11:43:52.473 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.473 INFO [stderr]   --> src/yaml_to_json.rs:98:13
Dec 19 11:43:52.473 INFO [stderr]    |
Dec 19 11:43:52.473 INFO [stderr] 98 |             write!(out, "{{");
Dec 19 11:43:52.473 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.473 INFO [stderr]    |
Dec 19 11:43:52.473 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.473 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 19 11:43:52.473 INFO [stderr] 
Dec 19 11:43:52.473 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.473 INFO [stderr]    --> src/yaml_to_json.rs:105:21
Dec 19 11:43:52.473 INFO [stderr]     |
Dec 19 11:43:52.473 INFO [stderr] 105 |                     write!(out, ",");
Dec 19 11:43:52.473 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.473 INFO [stderr]     |
Dec 19 11:43:52.473 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.473 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 19 11:43:52.473 INFO [stderr] 
Dec 19 11:43:52.473 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.473 INFO [stderr]    --> src/yaml_to_json.rs:109:21
Dec 19 11:43:52.473 INFO [stderr]     |
Dec 19 11:43:52.473 INFO [stderr] 109 |                     write!(out, ":");
Dec 19 11:43:52.473 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.473 INFO [stderr]     |
Dec 19 11:43:52.473 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.473 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 19 11:43:52.473 INFO [stderr] 
Dec 19 11:43:52.473 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.473 INFO [stderr]    --> src/yaml_to_json.rs:115:13
Dec 19 11:43:52.473 INFO [stderr]     |
Dec 19 11:43:52.473 INFO [stderr] 115 |             write!(out, "}}");
Dec 19 11:43:52.473 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.473 INFO [stderr]     |
Dec 19 11:43:52.473 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.473 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 19 11:43:52.473 INFO [stderr] 
Dec 19 11:43:52.473 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:43:52.473 INFO [stderr]    --> src/yaml_to_json.rs:118:13
Dec 19 11:43:52.473 INFO [stderr]     |
Dec 19 11:43:52.473 INFO [stderr] 118 |             write!(out, "null");
Dec 19 11:43:52.473 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
Dec 19 11:43:52.473 INFO [stderr]     |
Dec 19 11:43:52.473 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:43:52.473 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 19 11:43:52.473 INFO [stderr] 
Dec 19 11:43:52.508 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.50s
Dec 19 11:43:52.914 INFO running `"docker" "inspect" "c9ecab10243e03b77a4d4a0abe522f0db04cb040fa4b55de15cdd9a34771b2a1"`
Dec 19 11:43:53.087 INFO running `"docker" "rm" "-f" "c9ecab10243e03b77a4d4a0abe522f0db04cb040fa4b55de15cdd9a34771b2a1"`
Dec 19 11:43:53.186 INFO [stdout] c9ecab10243e03b77a4d4a0abe522f0db04cb040fa4b55de15cdd9a34771b2a1