[INFO] updating cached repository 1uks/brainfuck-jit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/1uks/brainfuck-jit
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/1uks/brainfuck-jit" "work/ex/beta-1.38-1/sources/1.37.0/gh/1uks/brainfuck-jit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/1uks/brainfuck-jit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/1uks/brainfuck-jit" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/1uks/brainfuck-jit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/1uks/brainfuck-jit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c97a9ede2f87c934b4273eb8cd791b87f579dd5
[INFO] sha for GitHub repo 1uks/brainfuck-jit: 1c97a9ede2f87c934b4273eb8cd791b87f579dd5
[INFO] validating manifest of 1uks/brainfuck-jit 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 1uks/brainfuck-jit 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 1uks/brainfuck-jit
[INFO] finished frobbing 1uks/brainfuck-jit
[INFO] frobbed toml for 1uks/brainfuck-jit written to work/ex/beta-1.38-1/sources/1.37.0/gh/1uks/brainfuck-jit/Cargo.toml
[INFO] started frobbing 1uks/brainfuck-jit
[INFO] finished frobbing 1uks/brainfuck-jit
[INFO] frobbed toml for 1uks/brainfuck-jit written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/1uks/brainfuck-jit/Cargo.toml
[INFO] crate 1uks/brainfuck-jit 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] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/1uks/brainfuck-jit/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 1uks/brainfuck-jit 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-4/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/1uks/brainfuck-jit:/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] 8d0fc56666aa12dd66b1e8df7f22491ffb4d26b66a235574961f1c8d5fe7a434
[INFO] running `"docker" "start" "-a" "8d0fc56666aa12dd66b1e8df7f22491ffb4d26b66a235574961f1c8d5fe7a434"`
[INFO] [stderr]    Compiling mmap v0.1.1
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/main.rs:10:19
[INFO] [stderr]    |
[INFO] [stderr] 10 |     use std::io::{Read, Write, Cursor, Seek, SeekFrom};
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `"docker" "inspect" "8d0fc56666aa12dd66b1e8df7f22491ffb4d26b66a235574961f1c8d5fe7a434"`
[INFO] running `"docker" "rm" "-f" "8d0fc56666aa12dd66b1e8df7f22491ffb4d26b66a235574961f1c8d5fe7a434"`
[INFO] [stdout] 8d0fc56666aa12dd66b1e8df7f22491ffb4d26b66a235574961f1c8d5fe7a434
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/1uks/brainfuck-jit:/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] f7a94be23b7442a521356700616498519b82c40a710941a4124b6eadb7b23aef
[INFO] running `"docker" "start" "-a" "f7a94be23b7442a521356700616498519b82c40a710941a4124b6eadb7b23aef"`
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/main.rs:10:19
[INFO] [stderr]    |
[INFO] [stderr] 10 |     use std::io::{Read, Write, Cursor, Seek, SeekFrom};
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "f7a94be23b7442a521356700616498519b82c40a710941a4124b6eadb7b23aef"`
[INFO] running `"docker" "rm" "-f" "f7a94be23b7442a521356700616498519b82c40a710941a4124b6eadb7b23aef"`
[INFO] [stdout] f7a94be23b7442a521356700616498519b82c40a710941a4124b6eadb7b23aef
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/1uks/brainfuck-jit:/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] 9d7991571ccab6cb0a6c418d6d8d75e955f93ccae433ac7e593b2703169a392c
[INFO] running `"docker" "start" "-a" "9d7991571ccab6cb0a6c418d6d8d75e955f93ccae433ac7e593b2703169a392c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/brainfuck-9858dc8e5ec18984
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test runlength::test_run_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9d7991571ccab6cb0a6c418d6d8d75e955f93ccae433ac7e593b2703169a392c"`
[INFO] running `"docker" "rm" "-f" "9d7991571ccab6cb0a6c418d6d8d75e955f93ccae433ac7e593b2703169a392c"`
[INFO] [stdout] 9d7991571ccab6cb0a6c418d6d8d75e955f93ccae433ac7e593b2703169a392c