[INFO] updating cached repository IGI-111/xit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/IGI-111/xit
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/IGI-111/xit" "work/ex/beta-1.37-6/sources/1.36.0/gh/IGI-111/xit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/IGI-111/xit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/IGI-111/xit" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/IGI-111/xit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/IGI-111/xit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4fe077f01c63f192246a4a9364ee165c572c4edd
[INFO] sha for GitHub repo IGI-111/xit: 4fe077f01c63f192246a4a9364ee165c572c4edd
[INFO] validating manifest of IGI-111/xit on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of IGI-111/xit on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing IGI-111/xit
[INFO] finished frobbing IGI-111/xit
[INFO] frobbed toml for IGI-111/xit written to work/ex/beta-1.37-6/sources/1.36.0/gh/IGI-111/xit/Cargo.toml
[INFO] started frobbing IGI-111/xit
[INFO] finished frobbing IGI-111/xit
[INFO] frobbed toml for IGI-111/xit written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/IGI-111/xit/Cargo.toml
[INFO] crate IGI-111/xit already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing IGI-111/xit against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/IGI-111/xit:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 1a30e2a756e1eb0c4dd8bab8c6220bc2409170b5ea88691ad3cc5fca1400453e
[INFO] running `"docker" "start" "-a" "1a30e2a756e1eb0c4dd8bab8c6220bc2409170b5ea88691ad3cc5fca1400453e"`
[INFO] [stderr]    Compiling serde v0.9.14
[INFO] [stderr]    Compiling termion v1.3.0
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling xit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]   --> src/main.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::time::{Instant, Duration};
[INFO] [stderr]    |                 ^^^^^^^  ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/main.rs:15:23
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::sync::mpsc::{self, Receiver};
[INFO] [stderr]    |                       ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/main.rs:16:37
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::io::{stdin, stdout, Write, Read, BufWriter};
[INFO] [stderr]    |                                     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.78s
[INFO] running `"docker" "inspect" "1a30e2a756e1eb0c4dd8bab8c6220bc2409170b5ea88691ad3cc5fca1400453e"`
[INFO] running `"docker" "rm" "-f" "1a30e2a756e1eb0c4dd8bab8c6220bc2409170b5ea88691ad3cc5fca1400453e"`
[INFO] [stdout] 1a30e2a756e1eb0c4dd8bab8c6220bc2409170b5ea88691ad3cc5fca1400453e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/IGI-111/xit:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 51caec845a13bc8ae2d9c04e527a2dcf098494d4c794d9c4ebcf35fc56d91e88
[INFO] running `"docker" "start" "-a" "51caec845a13bc8ae2d9c04e527a2dcf098494d4c794d9c4ebcf35fc56d91e88"`
[INFO] [stderr]    Compiling xit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]   --> src/main.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::time::{Instant, Duration};
[INFO] [stderr]    |                 ^^^^^^^  ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/main.rs:15:23
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::sync::mpsc::{self, Receiver};
[INFO] [stderr]    |                       ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/main.rs:16:37
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::io::{stdin, stdout, Write, Read, BufWriter};
[INFO] [stderr]    |                                     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "51caec845a13bc8ae2d9c04e527a2dcf098494d4c794d9c4ebcf35fc56d91e88"`
[INFO] running `"docker" "rm" "-f" "51caec845a13bc8ae2d9c04e527a2dcf098494d4c794d9c4ebcf35fc56d91e88"`
[INFO] [stdout] 51caec845a13bc8ae2d9c04e527a2dcf098494d4c794d9c4ebcf35fc56d91e88
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/IGI-111/xit:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 7c2513a72b5ce68d9a1f91fdda669a6251d8a04c660d39cbce410deca653cf1a
[INFO] running `"docker" "start" "-a" "7c2513a72b5ce68d9a1f91fdda669a6251d8a04c660d39cbce410deca653cf1a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xit-58f0374261c03e62
[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" "7c2513a72b5ce68d9a1f91fdda669a6251d8a04c660d39cbce410deca653cf1a"`
[INFO] running `"docker" "rm" "-f" "7c2513a72b5ce68d9a1f91fdda669a6251d8a04c660d39cbce410deca653cf1a"`
[INFO] [stdout] 7c2513a72b5ce68d9a1f91fdda669a6251d8a04c660d39cbce410deca653cf1a