Dec 11 12:34:50.350 INFO checking nojima/qurl against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 12:34:50.350 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 12:34:50.559 INFO [stdout] 67d9499a8bd82d85d026975e146cf8f357daa49caebf99612197af76b9add5dc
Dec 11 12:34:50.561 INFO running `"docker" "start" "-a" "67d9499a8bd82d85d026975e146cf8f357daa49caebf99612197af76b9add5dc"`
Dec 11 12:34:51.043 INFO [stderr] usermod: no changes
Dec 11 12:34:51.183 INFO [stderr]     Checking yaml-rust v0.4.2
Dec 11 12:34:51.192 INFO [stderr]     Checking tokio-threadpool v0.1.8
Dec 11 12:34:51.192 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 11 12:34:53.136 INFO [stderr]     Checking tokio-uds v0.2.3
Dec 11 12:34:53.136 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 11 12:34:53.136 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 11 12:34:54.308 INFO [stderr]     Checking tokio-fs v0.1.4
Dec 11 12:34:55.941 INFO [stderr]     Checking tokio v0.1.11
Dec 11 12:34:57.114 INFO [stderr]     Checking hyper v0.12.13
Dec 11 12:35:01.184 INFO [stderr]     Checking qurl v0.1.0 (/source)
Dec 11 12:35:03.335 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.335 INFO [stderr]   --> src/yaml_to_json.rs:71:13
Dec 11 12:35:03.335 INFO [stderr]    |
Dec 11 12:35:03.335 INFO [stderr] 71 |             write!(out, "{}", real);
Dec 11 12:35:03.335 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.335 INFO [stderr]    |
Dec 11 12:35:03.335 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 12:35:03.335 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.335 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 11 12:35:03.335 INFO [stderr] 
Dec 11 12:35:03.335 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.335 INFO [stderr]   --> src/yaml_to_json.rs:74:13
Dec 11 12:35:03.335 INFO [stderr]    |
Dec 11 12:35:03.335 INFO [stderr] 74 |             write!(out, "{}", integer);
Dec 11 12:35:03.335 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.335 INFO [stderr]    |
Dec 11 12:35:03.335 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.335 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 11 12:35:03.335 INFO [stderr] 
Dec 11 12:35:03.335 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.335 INFO [stderr]   --> src/yaml_to_json.rs:80:13
Dec 11 12:35:03.335 INFO [stderr]    |
Dec 11 12:35:03.335 INFO [stderr] 80 |             write!(out, "{}", boolean);
Dec 11 12:35:03.335 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.335 INFO [stderr]    |
Dec 11 12:35:03.335 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.335 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 11 12:35:03.335 INFO [stderr] 
Dec 11 12:35:03.335 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.335 INFO [stderr]   --> src/yaml_to_json.rs:83:13
Dec 11 12:35:03.335 INFO [stderr]    |
Dec 11 12:35:03.336 INFO [stderr] 83 |             write!(out, "[");
Dec 11 12:35:03.336 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.336 INFO [stderr]    |
Dec 11 12:35:03.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.336 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 11 12:35:03.336 INFO [stderr] 
Dec 11 12:35:03.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.336 INFO [stderr]   --> src/yaml_to_json.rs:90:21
Dec 11 12:35:03.336 INFO [stderr]    |
Dec 11 12:35:03.336 INFO [stderr] 90 |                     write!(out, ",");
Dec 11 12:35:03.336 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.336 INFO [stderr]    |
Dec 11 12:35:03.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.336 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 11 12:35:03.336 INFO [stderr] 
Dec 11 12:35:03.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.336 INFO [stderr]   --> src/yaml_to_json.rs:95:13
Dec 11 12:35:03.336 INFO [stderr]    |
Dec 11 12:35:03.336 INFO [stderr] 95 |             write!(out, "]");
Dec 11 12:35:03.336 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.336 INFO [stderr]    |
Dec 11 12:35:03.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.336 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 11 12:35:03.336 INFO [stderr] 
Dec 11 12:35:03.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.336 INFO [stderr]   --> src/yaml_to_json.rs:98:13
Dec 11 12:35:03.336 INFO [stderr]    |
Dec 11 12:35:03.336 INFO [stderr] 98 |             write!(out, "{{");
Dec 11 12:35:03.336 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.336 INFO [stderr]    |
Dec 11 12:35:03.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.336 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 11 12:35:03.336 INFO [stderr] 
Dec 11 12:35:03.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.336 INFO [stderr]    --> src/yaml_to_json.rs:105:21
Dec 11 12:35:03.336 INFO [stderr]     |
Dec 11 12:35:03.336 INFO [stderr] 105 |                     write!(out, ",");
Dec 11 12:35:03.336 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.336 INFO [stderr]     |
Dec 11 12:35:03.336 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.336 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 11 12:35:03.336 INFO [stderr] 
Dec 11 12:35:03.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.336 INFO [stderr]    --> src/yaml_to_json.rs:109:21
Dec 11 12:35:03.336 INFO [stderr]     |
Dec 11 12:35:03.336 INFO [stderr] 109 |                     write!(out, ":");
Dec 11 12:35:03.336 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.336 INFO [stderr]     |
Dec 11 12:35:03.336 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.336 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 11 12:35:03.336 INFO [stderr] 
Dec 11 12:35:03.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.336 INFO [stderr]    --> src/yaml_to_json.rs:115:13
Dec 11 12:35:03.336 INFO [stderr]     |
Dec 11 12:35:03.336 INFO [stderr] 115 |             write!(out, "}}");
Dec 11 12:35:03.336 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.336 INFO [stderr]     |
Dec 11 12:35:03.337 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.337 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 11 12:35:03.338 INFO [stderr] 
Dec 11 12:35:03.338 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.338 INFO [stderr]    --> src/yaml_to_json.rs:118:13
Dec 11 12:35:03.338 INFO [stderr]     |
Dec 11 12:35:03.338 INFO [stderr] 118 |             write!(out, "null");
Dec 11 12:35:03.338 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.338 INFO [stderr]     |
Dec 11 12:35:03.338 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.338 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 11 12:35:03.338 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.741 INFO [stderr]   --> src/yaml_to_json.rs:71:13
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr] 71 |             write!(out, "{}", real);
Dec 11 12:35:03.741 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 12:35:03.741 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.741 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 11 12:35:03.741 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.741 INFO [stderr]   --> src/yaml_to_json.rs:74:13
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr] 74 |             write!(out, "{}", integer);
Dec 11 12:35:03.741 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.741 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 11 12:35:03.741 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.741 INFO [stderr]   --> src/yaml_to_json.rs:80:13
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr] 80 |             write!(out, "{}", boolean);
Dec 11 12:35:03.741 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.741 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 11 12:35:03.741 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.741 INFO [stderr]   --> src/yaml_to_json.rs:83:13
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr] 83 |             write!(out, "[");
Dec 11 12:35:03.741 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.741 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 11 12:35:03.741 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.741 INFO [stderr]   --> src/yaml_to_json.rs:90:21
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr] 90 |                     write!(out, ",");
Dec 11 12:35:03.741 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.741 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 11 12:35:03.741 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.741 INFO [stderr]   --> src/yaml_to_json.rs:95:13
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr] 95 |             write!(out, "]");
Dec 11 12:35:03.741 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.741 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 11 12:35:03.741 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.741 INFO [stderr]   --> src/yaml_to_json.rs:98:13
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr] 98 |             write!(out, "{{");
Dec 11 12:35:03.741 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.741 INFO [stderr]    |
Dec 11 12:35:03.741 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.741 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 11 12:35:03.741 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.741 INFO [stderr]    --> src/yaml_to_json.rs:105:21
Dec 11 12:35:03.741 INFO [stderr]     |
Dec 11 12:35:03.741 INFO [stderr] 105 |                     write!(out, ",");
Dec 11 12:35:03.741 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.741 INFO [stderr]     |
Dec 11 12:35:03.741 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.741 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 11 12:35:03.741 INFO [stderr] 
Dec 11 12:35:03.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.748 INFO [stderr]    --> src/yaml_to_json.rs:109:21
Dec 11 12:35:03.748 INFO [stderr]     |
Dec 11 12:35:03.748 INFO [stderr] 109 |                     write!(out, ":");
Dec 11 12:35:03.748 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.748 INFO [stderr]     |
Dec 11 12:35:03.748 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.748 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 11 12:35:03.748 INFO [stderr] 
Dec 11 12:35:03.748 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.748 INFO [stderr]    --> src/yaml_to_json.rs:115:13
Dec 11 12:35:03.748 INFO [stderr]     |
Dec 11 12:35:03.748 INFO [stderr] 115 |             write!(out, "}}");
Dec 11 12:35:03.748 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.748 INFO [stderr]     |
Dec 11 12:35:03.748 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.748 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 11 12:35:03.748 INFO [stderr] 
Dec 11 12:35:03.748 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 12:35:03.748 INFO [stderr]    --> src/yaml_to_json.rs:118:13
Dec 11 12:35:03.748 INFO [stderr]     |
Dec 11 12:35:03.748 INFO [stderr] 118 |             write!(out, "null");
Dec 11 12:35:03.748 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
Dec 11 12:35:03.748 INFO [stderr]     |
Dec 11 12:35:03.748 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 12:35:03.748 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 11 12:35:03.748 INFO [stderr] 
Dec 11 12:35:03.795 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.73s
Dec 11 12:35:03.808 INFO [stderr] su: No module specific data is present
Dec 11 12:35:04.448 INFO running `"docker" "inspect" "67d9499a8bd82d85d026975e146cf8f357daa49caebf99612197af76b9add5dc"`
Dec 11 12:35:04.624 INFO running `"docker" "rm" "-f" "67d9499a8bd82d85d026975e146cf8f357daa49caebf99612197af76b9add5dc"`
Dec 11 12:35:04.878 INFO [stdout] 67d9499a8bd82d85d026975e146cf8f357daa49caebf99612197af76b9add5dc