[INFO] updating cached repository franleplant/syntaxis_lexer.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/franleplant/syntaxis_lexer.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/franleplant/syntaxis_lexer.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/franleplant/syntaxis_lexer.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/franleplant/syntaxis_lexer.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/franleplant/syntaxis_lexer.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/franleplant/syntaxis_lexer.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/franleplant/syntaxis_lexer.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5e7ed61ed2b377567ac70c5d9e9ac406d56caf26
[INFO] sha for GitHub repo franleplant/syntaxis_lexer.rs: 5e7ed61ed2b377567ac70c5d9e9ac406d56caf26
[INFO] validating manifest of franleplant/syntaxis_lexer.rs 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 franleplant/syntaxis_lexer.rs 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 franleplant/syntaxis_lexer.rs
[INFO] finished frobbing franleplant/syntaxis_lexer.rs
[INFO] frobbed toml for franleplant/syntaxis_lexer.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/franleplant/syntaxis_lexer.rs/Cargo.toml
[INFO] started frobbing franleplant/syntaxis_lexer.rs
[INFO] finished frobbing franleplant/syntaxis_lexer.rs
[INFO] frobbed toml for franleplant/syntaxis_lexer.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/franleplant/syntaxis_lexer.rs/Cargo.toml
[INFO] crate franleplant/syntaxis_lexer.rs 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 franleplant/syntaxis_lexer.rs 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/franleplant/syntaxis_lexer.rs:/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] 2652e0d442af13698ec7b779c33445caa32e6ce6dd703f61e57cbe8aff66264a
[INFO] running `"docker" "start" "-a" "2652e0d442af13698ec7b779c33445caa32e6ce6dd703f61e57cbe8aff66264a"`
[INFO] [stderr]    Compiling syntaxis v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `source`
[INFO] [stderr]   --> src/lexer.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     source: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "2652e0d442af13698ec7b779c33445caa32e6ce6dd703f61e57cbe8aff66264a"`
[INFO] running `"docker" "rm" "-f" "2652e0d442af13698ec7b779c33445caa32e6ce6dd703f61e57cbe8aff66264a"`
[INFO] [stdout] 2652e0d442af13698ec7b779c33445caa32e6ce6dd703f61e57cbe8aff66264a
[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/franleplant/syntaxis_lexer.rs:/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] 20d8fa12c41978bf1b6e741f7d7df3c0b072f92d7b5028b1b1bed7e9343fef9a
[INFO] running `"docker" "start" "-a" "20d8fa12c41978bf1b6e741f7d7df3c0b072f92d7b5028b1b1bed7e9343fef9a"`
[INFO] [stderr]    Compiling syntaxis v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `source`
[INFO] [stderr]   --> src/lexer.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     source: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "20d8fa12c41978bf1b6e741f7d7df3c0b072f92d7b5028b1b1bed7e9343fef9a"`
[INFO] running `"docker" "rm" "-f" "20d8fa12c41978bf1b6e741f7d7df3c0b072f92d7b5028b1b1bed7e9343fef9a"`
[INFO] [stdout] 20d8fa12c41978bf1b6e741f7d7df3c0b072f92d7b5028b1b1bed7e9343fef9a
[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/franleplant/syntaxis_lexer.rs:/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] 9bf3ec9076ce96ea9b8f1eef5dbd78c6d412adf734664188bf9cad8cd749eca1
[INFO] running `"docker" "start" "-a" "9bf3ec9076ce96ea9b8f1eef5dbd78c6d412adf734664188bf9cad8cd749eca1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/syntaxis-7c9af975a2204b1c
[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" "9bf3ec9076ce96ea9b8f1eef5dbd78c6d412adf734664188bf9cad8cd749eca1"`
[INFO] running `"docker" "rm" "-f" "9bf3ec9076ce96ea9b8f1eef5dbd78c6d412adf734664188bf9cad8cd749eca1"`
[INFO] [stdout] 9bf3ec9076ce96ea9b8f1eef5dbd78c6d412adf734664188bf9cad8cd749eca1