Dec 19 08:34:30.497 INFO checking snaar/drat against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:34:30.497 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/snaar/drat:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:34:30.948 INFO [stdout] a112d60cb4ada59f1654b46f16d238faa0546f7bb13a97230780406762c1bb03
Dec 19 08:34:30.952 INFO running `"docker" "start" "-a" "a112d60cb4ada59f1654b46f16d238faa0546f7bb13a97230780406762c1bb03"`
Dec 19 08:34:32.562 INFO [stderr]     Checking lzf v0.3.1
Dec 19 08:34:32.562 INFO [stderr]     Checking crossbeam-utils v0.3.2
Dec 19 08:34:32.562 INFO [stderr]     Checking log v0.4.3
Dec 19 08:34:32.562 INFO [stderr]     Checking encoding_rs v0.7.2
Dec 19 08:34:32.576 INFO [stderr]     Checking memchr v2.0.1
Dec 19 08:34:32.576 INFO [stderr]     Checking uuid v0.6.5
Dec 19 08:34:32.580 INFO [stderr]     Checking mime v0.3.9
Dec 19 08:34:32.580 INFO [stderr]     Checking serde_urlencoded v0.5.2
Dec 19 08:34:33.318 INFO [stderr]     Checking libflate v0.1.16
Dec 19 08:34:33.476 INFO [stderr]     Checking crossbeam-epoch v0.4.3
Dec 19 08:34:33.625 INFO [stderr]     Checking mio v0.6.15
Dec 19 08:34:33.789 INFO [stderr]     Checking tokio-io v0.1.7
Dec 19 08:34:34.736 INFO [stderr]     Checking want v0.0.4
Dec 19 08:34:34.912 INFO [stderr]     Checking csv-core v0.1.4
Dec 19 08:34:35.132 INFO [stderr]    Compiling mime_guess v2.0.0-alpha.6
Dec 19 08:34:35.456 INFO [stderr]     Checking crossbeam-deque v0.3.1
Dec 19 08:34:36.340 INFO [stderr]     Checking tokio-threadpool v0.1.5
Dec 19 08:34:36.953 INFO [stderr]     Checking csv v1.0.0
Dec 19 08:34:38.000 INFO [stderr]     Checking tokio-reactor v0.1.3
Dec 19 08:34:38.000 INFO [stderr]     Checking tokio-codec v0.1.0
Dec 19 08:34:40.670 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 19 08:34:41.288 INFO [stderr]     Checking tokio-tcp v0.1.1
Dec 19 08:34:41.288 INFO [stderr]     Checking tokio-udp v0.1.1
Dec 19 08:34:42.990 INFO [stderr]     Checking tokio v0.1.7
Dec 19 08:34:44.180 INFO [stderr]     Checking tokio-core v0.1.17
Dec 19 08:34:46.361 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 19 08:34:46.363 INFO [stderr]     Checking hyper v0.11.27
Dec 19 08:34:51.466 INFO [stderr]     Checking hyper-tls v0.1.4
Dec 19 08:34:51.997 INFO [stderr]     Checking reqwest v0.8.7
Dec 19 08:34:53.322 INFO [stderr]     Checking drat v0.0.1 (/opt/crater/workdir)
Dec 19 08:34:54.690 INFO [stderr] warning: value assigned to `next_row` is never read
Dec 19 08:34:54.691 INFO [stderr]   --> src/file_record.rs:59:17
Dec 19 08:34:54.691 INFO [stderr]    |
Dec 19 08:34:54.691 INFO [stderr] 59 |         let mut next_row = None;
Dec 19 08:34:54.691 INFO [stderr]    |                 ^^^^^^^^
Dec 19 08:34:54.692 INFO [stderr]    |
Dec 19 08:34:54.692 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 08:34:54.692 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 08:34:54.692 INFO [stderr] 
Dec 19 08:34:54.692 INFO [stderr] warning: unused variable: `magic_num`
Dec 19 08:34:54.693 INFO [stderr]   --> src/read/dc_reader.rs:24:13
Dec 19 08:34:54.693 INFO [stderr]    |
Dec 19 08:34:54.693 INFO [stderr] 24 |         let magic_num = reader.read_u64::<BigEndian>().unwrap();
Dec 19 08:34:54.694 INFO [stderr]    |             ^^^^^^^^^ help: consider using `_magic_num` instead
Dec 19 08:34:54.694 INFO [stderr]    |
Dec 19 08:34:54.694 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:34:54.694 INFO [stderr] 
Dec 19 08:34:54.695 INFO [stderr] warning: unused variable: `version`
Dec 19 08:34:54.695 INFO [stderr]   --> src/read/dc_reader.rs:25:13
Dec 19 08:34:54.695 INFO [stderr]    |
Dec 19 08:34:54.695 INFO [stderr] 25 |         let version = reader.read_u16::<BigEndian>().unwrap();
Dec 19 08:34:54.700 INFO [stderr]    |             ^^^^^^^ help: consider using `_version` instead
Dec 19 08:34:54.700 INFO [stderr] 
Dec 19 08:34:54.852 INFO [stderr] warning: method is never used: `delimiter`
Dec 19 08:34:54.853 INFO [stderr]   --> src/config.rs:46:5
Dec 19 08:34:54.853 INFO [stderr]    |
Dec 19 08:34:54.853 INFO [stderr] 46 |     pub fn delimiter(&self) -> u8 {
Dec 19 08:34:54.853 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.853 INFO [stderr]    |
Dec 19 08:34:54.853 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:34:54.853 INFO [stderr] 
Dec 19 08:34:54.853 INFO [stderr] warning: field is never used: `timestamp_column`
Dec 19 08:34:54.853 INFO [stderr]   --> src/file_record.rs:13:5
Dec 19 08:34:54.853 INFO [stderr]    |
Dec 19 08:34:54.853 INFO [stderr] 13 |     timestamp_column: usize,
Dec 19 08:34:54.853 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.853 INFO [stderr] 
Dec 19 08:34:54.853 INFO [stderr] warning: field is never used: `map_field_string`
Dec 19 08:34:54.853 INFO [stderr]   --> src/read/dc_reader.rs:18:5
Dec 19 08:34:54.853 INFO [stderr]    |
Dec 19 08:34:54.853 INFO [stderr] 18 |     map_field_string: HashMap<String, FieldType>,
Dec 19 08:34:54.853 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.853 INFO [stderr] 
Dec 19 08:34:54.853 INFO [stderr] warning: field is never used: `display_hint`
Dec 19 08:34:54.853 INFO [stderr]   --> src/read/types.rs:50:5
Dec 19 08:34:54.853 INFO [stderr]    |
Dec 19 08:34:54.853 INFO [stderr] 50 |     display_hint: i32, // -1: no hint, 0: timestamp
Dec 19 08:34:54.853 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.853 INFO [stderr] 
Dec 19 08:34:54.853 INFO [stderr] warning: method is never used: `get_display_hint`
Dec 19 08:34:54.853 INFO [stderr]   --> src/read/types.rs:70:5
Dec 19 08:34:54.853 INFO [stderr]    |
Dec 19 08:34:54.853 INFO [stderr] 70 |     pub fn get_display_hint(&self) -> i32 {
Dec 19 08:34:54.853 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.853 INFO [stderr] 
Dec 19 08:34:54.854 INFO [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
Dec 19 08:34:54.854 INFO [stderr]   --> src/args.rs:32:13
Dec 19 08:34:54.854 INFO [stderr]    |
Dec 19 08:34:54.854 INFO [stderr] 32 |             inputs_clone.push("-").to_owned(); // stdin
Dec 19 08:34:54.854 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.854 INFO [stderr]    |
Dec 19 08:34:54.854 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 08:34:54.854 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Dec 19 08:34:54.854 INFO [stderr] 
Dec 19 08:34:54.854 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:34:54.854 INFO [stderr]   --> src/read/dc_reader.rs:31:13
Dec 19 08:34:54.854 INFO [stderr]    |
Dec 19 08:34:54.854 INFO [stderr] 31 |             reader.read_u8();
Dec 19 08:34:54.854 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.854 INFO [stderr]    |
Dec 19 08:34:54.854 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:34:54.854 INFO [stderr] 
Dec 19 08:34:54.856 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:34:54.856 INFO [stderr]   --> src/write/csv_sink.rs:55:20
Dec 19 08:34:54.856 INFO [stderr]    |
Dec 19 08:34:54.856 INFO [stderr] 55 |             else { write!(self.writer, ","); } //TODO figure out how to print single char without buffer
Dec 19 08:34:54.856 INFO [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.856 INFO [stderr]    |
Dec 19 08:34:54.856 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:34:54.856 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 08:34:54.856 INFO [stderr] 
Dec 19 08:34:54.856 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:34:54.856 INFO [stderr]   --> src/write/csv_sink.rs:59:9
Dec 19 08:34:54.856 INFO [stderr]    |
Dec 19 08:34:54.856 INFO [stderr] 59 |         self.writer.write(b"\n");
Dec 19 08:34:54.856 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:54.857 INFO [stderr]    |
Dec 19 08:34:54.857 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:34:54.857 INFO [stderr] 
Dec 19 08:34:54.902 INFO [stderr] warning: value assigned to `next_row` is never read
Dec 19 08:34:54.902 INFO [stderr]   --> src/file_record.rs:59:17
Dec 19 08:34:54.902 INFO [stderr]    |
Dec 19 08:34:54.902 INFO [stderr] 59 |         let mut next_row = None;
Dec 19 08:34:54.902 INFO [stderr]    |                 ^^^^^^^^
Dec 19 08:34:54.902 INFO [stderr]    |
Dec 19 08:34:54.902 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 08:34:54.902 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 08:34:54.902 INFO [stderr] 
Dec 19 08:34:54.902 INFO [stderr] warning: unused variable: `magic_num`
Dec 19 08:34:54.902 INFO [stderr]   --> src/read/dc_reader.rs:24:13
Dec 19 08:34:54.902 INFO [stderr]    |
Dec 19 08:34:54.902 INFO [stderr] 24 |         let magic_num = reader.read_u64::<BigEndian>().unwrap();
Dec 19 08:34:54.902 INFO [stderr]    |             ^^^^^^^^^ help: consider using `_magic_num` instead
Dec 19 08:34:54.902 INFO [stderr]    |
Dec 19 08:34:54.902 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:34:54.902 INFO [stderr] 
Dec 19 08:34:54.902 INFO [stderr] warning: unused variable: `version`
Dec 19 08:34:54.902 INFO [stderr]   --> src/read/dc_reader.rs:25:13
Dec 19 08:34:54.902 INFO [stderr]    |
Dec 19 08:34:54.902 INFO [stderr] 25 |         let version = reader.read_u16::<BigEndian>().unwrap();
Dec 19 08:34:54.902 INFO [stderr]    |             ^^^^^^^ help: consider using `_version` instead
Dec 19 08:34:54.902 INFO [stderr] 
Dec 19 08:34:55.096 INFO [stderr] warning: method is never used: `delimiter`
Dec 19 08:34:55.096 INFO [stderr]   --> src/config.rs:46:5
Dec 19 08:34:55.096 INFO [stderr]    |
Dec 19 08:34:55.096 INFO [stderr] 46 |     pub fn delimiter(&self) -> u8 {
Dec 19 08:34:55.096 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.096 INFO [stderr]    |
Dec 19 08:34:55.096 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:34:55.096 INFO [stderr] 
Dec 19 08:34:55.096 INFO [stderr] warning: field is never used: `timestamp_column`
Dec 19 08:34:55.096 INFO [stderr]   --> src/file_record.rs:13:5
Dec 19 08:34:55.096 INFO [stderr]    |
Dec 19 08:34:55.096 INFO [stderr] 13 |     timestamp_column: usize,
Dec 19 08:34:55.096 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.096 INFO [stderr] 
Dec 19 08:34:55.096 INFO [stderr] warning: field is never used: `map_field_string`
Dec 19 08:34:55.096 INFO [stderr]   --> src/read/dc_reader.rs:18:5
Dec 19 08:34:55.096 INFO [stderr]    |
Dec 19 08:34:55.096 INFO [stderr] 18 |     map_field_string: HashMap<String, FieldType>,
Dec 19 08:34:55.096 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.096 INFO [stderr] 
Dec 19 08:34:55.096 INFO [stderr] warning: field is never used: `display_hint`
Dec 19 08:34:55.096 INFO [stderr]   --> src/read/types.rs:50:5
Dec 19 08:34:55.096 INFO [stderr]    |
Dec 19 08:34:55.096 INFO [stderr] 50 |     display_hint: i32, // -1: no hint, 0: timestamp
Dec 19 08:34:55.096 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.096 INFO [stderr] 
Dec 19 08:34:55.096 INFO [stderr] warning: method is never used: `get_display_hint`
Dec 19 08:34:55.096 INFO [stderr]   --> src/read/types.rs:70:5
Dec 19 08:34:55.096 INFO [stderr]    |
Dec 19 08:34:55.096 INFO [stderr] 70 |     pub fn get_display_hint(&self) -> i32 {
Dec 19 08:34:55.096 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.096 INFO [stderr] 
Dec 19 08:34:55.096 INFO [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
Dec 19 08:34:55.096 INFO [stderr]   --> src/args.rs:32:13
Dec 19 08:34:55.096 INFO [stderr]    |
Dec 19 08:34:55.096 INFO [stderr] 32 |             inputs_clone.push("-").to_owned(); // stdin
Dec 19 08:34:55.096 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.096 INFO [stderr]    |
Dec 19 08:34:55.096 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 08:34:55.096 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Dec 19 08:34:55.096 INFO [stderr] 
Dec 19 08:34:55.097 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:34:55.097 INFO [stderr]   --> src/read/dc_reader.rs:31:13
Dec 19 08:34:55.097 INFO [stderr]    |
Dec 19 08:34:55.097 INFO [stderr] 31 |             reader.read_u8();
Dec 19 08:34:55.097 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.097 INFO [stderr]    |
Dec 19 08:34:55.097 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:34:55.097 INFO [stderr] 
Dec 19 08:34:55.098 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:34:55.098 INFO [stderr]   --> src/write/csv_sink.rs:55:20
Dec 19 08:34:55.098 INFO [stderr]    |
Dec 19 08:34:55.098 INFO [stderr] 55 |             else { write!(self.writer, ","); } //TODO figure out how to print single char without buffer
Dec 19 08:34:55.098 INFO [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.104 INFO [stderr]    |
Dec 19 08:34:55.104 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:34:55.105 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 08:34:55.105 INFO [stderr] 
Dec 19 08:34:55.105 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 08:34:55.106 INFO [stderr]   --> src/write/csv_sink.rs:59:9
Dec 19 08:34:55.106 INFO [stderr]    |
Dec 19 08:34:55.106 INFO [stderr] 59 |         self.writer.write(b"\n");
Dec 19 08:34:55.106 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:34:55.106 INFO [stderr]    |
Dec 19 08:34:55.106 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 08:34:55.107 INFO [stderr] 
Dec 19 08:34:55.146 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.88s
Dec 19 08:34:55.908 INFO running `"docker" "inspect" "a112d60cb4ada59f1654b46f16d238faa0546f7bb13a97230780406762c1bb03"`
Dec 19 08:34:56.158 INFO running `"docker" "rm" "-f" "a112d60cb4ada59f1654b46f16d238faa0546f7bb13a97230780406762c1bb03"`
Dec 19 08:34:56.487 INFO [stdout] a112d60cb4ada59f1654b46f16d238faa0546f7bb13a97230780406762c1bb03