[INFO] updating cached repository raytung/pixels
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/raytung/pixels
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/raytung/pixels" "work/ex/beta-1.38-1/sources/1.37.0/gh/raytung/pixels"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/raytung/pixels'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/raytung/pixels" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/raytung/pixels"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/raytung/pixels'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d31af04f5e555a4c440f928e7234e68d73bac7f6
[INFO] sha for GitHub repo raytung/pixels: d31af04f5e555a4c440f928e7234e68d73bac7f6
[INFO] validating manifest of raytung/pixels on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of raytung/pixels on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing raytung/pixels
[INFO] finished frobbing raytung/pixels
[INFO] frobbed toml for raytung/pixels written to work/ex/beta-1.38-1/sources/1.37.0/gh/raytung/pixels/Cargo.toml
[INFO] started frobbing raytung/pixels
[INFO] finished frobbing raytung/pixels
[INFO] frobbed toml for raytung/pixels written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/raytung/pixels/Cargo.toml
[INFO] crate raytung/pixels already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing raytung/pixels against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/raytung/pixels:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a9a2f3e1ee809fc3c8e10f9d9d369aba695d9bf7ffa8ef5ff6c04bf6a2ec03dd
[INFO] running `"docker" "start" "-a" "a9a2f3e1ee809fc3c8e10f9d9d369aba695d9bf7ffa8ef5ff6c04bf6a2ec03dd"`
[INFO] [stderr]    Compiling pixels v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Result`, `SeekFrom`
[INFO] [stderr]  --> src/lib.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Seek, Result, Read, SeekFrom};
[INFO] [stderr]   |                     ^^^^^^        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/jpeg.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/jpeg.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |             Markers::RST(n @ 0 ... 7) => Ok((0xFF, 0xD0 + n as u8)),
[INFO] [stderr]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/jpeg.rs:46:32
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Markers::APP(n @ 0 ... 15) => Ok((0xFF, 0xE0 + n as u8)),
[INFO] [stderr]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/jpeg.rs:116:24
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                        ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/jpeg.rs:122:24
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {
[INFO] [stderr]     |                        ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Markers`
[INFO] [stderr]  --> src/jpeg.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | enum Markers {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `INVALID`
[INFO] [stderr]   --> src/jpeg.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     INVALID
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `MarkerBytes`
[INFO] [stderr]   --> src/jpeg.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | type MarkerBytes = (u8, u8);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_bytes`
[INFO] [stderr]   --> src/jpeg.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn to_bytes(&self) -> Result<MarkerBytes, MarkersResult> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `file`
[INFO] [stderr]    --> src/jpeg.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     file: File,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "a9a2f3e1ee809fc3c8e10f9d9d369aba695d9bf7ffa8ef5ff6c04bf6a2ec03dd"`
[INFO] running `"docker" "rm" "-f" "a9a2f3e1ee809fc3c8e10f9d9d369aba695d9bf7ffa8ef5ff6c04bf6a2ec03dd"`
[INFO] [stdout] a9a2f3e1ee809fc3c8e10f9d9d369aba695d9bf7ffa8ef5ff6c04bf6a2ec03dd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/raytung/pixels:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 02e24a90795b30a6d4cfa2110a219392bcf4c73933a0de340a9c42b5ce75e7bd
[INFO] running `"docker" "start" "-a" "02e24a90795b30a6d4cfa2110a219392bcf4c73933a0de340a9c42b5ce75e7bd"`
[INFO] [stderr]    Compiling pixels v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Result`, `SeekFrom`
[INFO] [stderr]  --> src/lib.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Seek, Result, Read, SeekFrom};
[INFO] [stderr]   |                     ^^^^^^        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/jpeg.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/jpeg.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |             Markers::RST(n @ 0 ... 7) => Ok((0xFF, 0xD0 + n as u8)),
[INFO] [stderr]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/jpeg.rs:46:32
[INFO] [stderr]    |
[INFO] [stderr] 46 |             Markers::APP(n @ 0 ... 15) => Ok((0xFF, 0xE0 + n as u8)),
[INFO] [stderr]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/jpeg.rs:116:24
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                        ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]    --> src/jpeg.rs:122:24
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {
[INFO] [stderr]     |                        ^^^ help: consider prefixing with an underscore: `_pos`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SOI`
[INFO] [stderr]  --> src/jpeg.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     SOI,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SOF0`
[INFO] [stderr]  --> src/jpeg.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     SOF0,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SOF2`
[INFO] [stderr]   --> src/jpeg.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     SOF2,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DHT`
[INFO] [stderr]   --> src/jpeg.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     DHT,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DQT`
[INFO] [stderr]   --> src/jpeg.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     DQT,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DRI`
[INFO] [stderr]   --> src/jpeg.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     DRI,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SOS`
[INFO] [stderr]   --> src/jpeg.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     SOS,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `COM`
[INFO] [stderr]   --> src/jpeg.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     COM,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EOI`
[INFO] [stderr]   --> src/jpeg.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     EOI,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `file`
[INFO] [stderr]    --> src/jpeg.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     file: File,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "02e24a90795b30a6d4cfa2110a219392bcf4c73933a0de340a9c42b5ce75e7bd"`
[INFO] running `"docker" "rm" "-f" "02e24a90795b30a6d4cfa2110a219392bcf4c73933a0de340a9c42b5ce75e7bd"`
[INFO] [stdout] 02e24a90795b30a6d4cfa2110a219392bcf4c73933a0de340a9c42b5ce75e7bd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/raytung/pixels:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6e813c871b126481c47ccc5765a586671b9fefd4e3b54685a3af1c841349b779
[INFO] running `"docker" "start" "-a" "6e813c871b126481c47ccc5765a586671b9fefd4e3b54685a3af1c841349b779"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pixels-2d6f9edd38305940
[INFO] [stdout] test jpeg::tests::app_to_bytes ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/main-6a78ac6f47c9c267
[INFO] [stdout] test jpeg::tests::rst_to_bytes ... ok
[INFO] [stderr]    Doc-tests pixels
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6e813c871b126481c47ccc5765a586671b9fefd4e3b54685a3af1c841349b779"`
[INFO] running `"docker" "rm" "-f" "6e813c871b126481c47ccc5765a586671b9fefd4e3b54685a3af1c841349b779"`
[INFO] [stdout] 6e813c871b126481c47ccc5765a586671b9fefd4e3b54685a3af1c841349b779