[INFO] updating cached repository snaar/drat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/snaar/drat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/snaar/drat" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/snaar/drat"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/snaar/drat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/snaar/drat" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/snaar/drat"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/snaar/drat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6fc781000a3d3f396d83643ccd64059e69a5ef52
[INFO] sha for GitHub repo snaar/drat: 6fc781000a3d3f396d83643ccd64059e69a5ef52
[INFO] validating manifest of snaar/drat on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of snaar/drat on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing snaar/drat
[INFO] finished frobbing snaar/drat
[INFO] frobbed toml for snaar/drat written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/snaar/drat/Cargo.toml
[INFO] started frobbing snaar/drat
[INFO] finished frobbing snaar/drat
[INFO] frobbed toml for snaar/drat written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/snaar/drat/Cargo.toml
[INFO] crate snaar/drat has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking snaar/drat against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-7/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f6058a5a12e6bd3f9efe0ebf4f4651fa5284572b55fcbb52c2d48ae6dfee7c02
[INFO] running `"docker" "start" "-a" "f6058a5a12e6bd3f9efe0ebf4f4651fa5284572b55fcbb52c2d48ae6dfee7c02"`
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]     Checking lzf v0.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]     Checking tokio-executor v0.1.3
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.1
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking want v0.0.4
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking tokio-timer v0.2.5
[INFO] [stderr]     Checking miniz-sys v0.1.10
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling openssl-sys v0.9.35
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking flate2 v1.0.2
[INFO] [stderr]     Checking libflate v0.1.16
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]    Compiling phf_codegen v0.7.22
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-reactor v0.1.3
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking serde_urlencoded v0.5.2
[INFO] [stderr]     Checking serde_json v1.0.24
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]     Checking hyper-tls v0.1.4
[INFO] [stderr]     Checking reqwest v0.8.7
[INFO] [stderr]     Checking drat v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `next_row` is never read
[INFO] [stderr]   --> src/file_record.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut next_row = None;
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `magic_num`
[INFO] [stderr]   --> src/read/dc_reader.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let magic_num = reader.read_u64::<BigEndian>().unwrap();
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_magic_num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]   --> src/read/dc_reader.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let version = reader.read_u16::<BigEndian>().unwrap();
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_version`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_row` is never read
[INFO] [stderr]   --> src/file_record.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut next_row = None;
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `magic_num`
[INFO] [stderr]   --> src/read/dc_reader.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let magic_num = reader.read_u64::<BigEndian>().unwrap();
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_magic_num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]   --> src/read/dc_reader.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let version = reader.read_u16::<BigEndian>().unwrap();
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_version`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `delimiter`
[INFO] [stderr]   --> src/config.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn delimiter(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `timestamp_column`
[INFO] [stderr]   --> src/file_record.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     timestamp_column: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `map_field_string`
[INFO] [stderr]   --> src/read/dc_reader.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     map_field_string: HashMap<String, FieldType>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `display_hint`
[INFO] [stderr]   --> src/read/types.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     display_hint: i32, // -1: no hint, 0: timestamp
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_display_hint`
[INFO] [stderr]   --> src/read/types.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn get_display_hint(&self) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
[INFO] [stderr]   --> src/args.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             inputs_clone.push("-").to_owned(); // stdin
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/read/dc_reader.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             reader.read_u8();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/write/csv_sink.rs:55:20
[INFO] [stderr]    |
[INFO] [stderr] 55 |             else { write!(self.writer, ","); } //TODO figure out how to print single char without buffer
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/write/csv_sink.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         self.writer.write(b"\n");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `delimiter`
[INFO] [stderr]   --> src/config.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn delimiter(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `timestamp_column`
[INFO] [stderr]   --> src/file_record.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     timestamp_column: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `map_field_string`
[INFO] [stderr]   --> src/read/dc_reader.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     map_field_string: HashMap<String, FieldType>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `display_hint`
[INFO] [stderr]   --> src/read/types.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     display_hint: i32, // -1: no hint, 0: timestamp
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_display_hint`
[INFO] [stderr]   --> src/read/types.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn get_display_hint(&self) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
[INFO] [stderr]   --> src/args.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             inputs_clone.push("-").to_owned(); // stdin
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/read/dc_reader.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             reader.read_u8();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/write/csv_sink.rs:55:20
[INFO] [stderr]    |
[INFO] [stderr] 55 |             else { write!(self.writer, ","); } //TODO figure out how to print single char without buffer
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[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)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/write/csv_sink.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         self.writer.write(b"\n");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.81s
[INFO] running `"docker" "inspect" "f6058a5a12e6bd3f9efe0ebf4f4651fa5284572b55fcbb52c2d48ae6dfee7c02"`
[INFO] running `"docker" "rm" "-f" "f6058a5a12e6bd3f9efe0ebf4f4651fa5284572b55fcbb52c2d48ae6dfee7c02"`
[INFO] [stdout] f6058a5a12e6bd3f9efe0ebf4f4651fa5284572b55fcbb52c2d48ae6dfee7c02