[INFO] updating cached repository methodin/txtof
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/methodin/txtof
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/methodin/txtof" "work/ex/beta-1.37-6/sources/1.36.0/gh/methodin/txtof"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/methodin/txtof'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/methodin/txtof" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/methodin/txtof"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/methodin/txtof'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 59d0fce3ad85e442e167633cff9778cbcdef438a
[INFO] sha for GitHub repo methodin/txtof: 59d0fce3ad85e442e167633cff9778cbcdef438a
[INFO] validating manifest of methodin/txtof 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 methodin/txtof 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 methodin/txtof
[INFO] finished frobbing methodin/txtof
[INFO] frobbed toml for methodin/txtof written to work/ex/beta-1.37-6/sources/1.36.0/gh/methodin/txtof/Cargo.toml
[INFO] started frobbing methodin/txtof
[INFO] finished frobbing methodin/txtof
[INFO] frobbed toml for methodin/txtof written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/methodin/txtof/Cargo.toml
[INFO] crate methodin/txtof 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 methodin/txtof against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/methodin/txtof:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 182474a1fb01af6abf94f822728cadfc7814bbf0af195a7f0070591d19c5a118
[INFO] running `"docker" "start" "-a" "182474a1fb01af6abf94f822728cadfc7814bbf0af195a7f0070591d19c5a118"`
[INFO] [stderr]    Compiling serde v1.0.10
[INFO] [stderr]    Compiling serde_derive v1.0.10
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling handlebars v0.27.0
[INFO] [stderr]    Compiling txtof v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:432:25
[INFO] [stderr]     |
[INFO] [stderr] 432 |                     let mut row = page.get_current_row();
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.27s
[INFO] running `"docker" "inspect" "182474a1fb01af6abf94f822728cadfc7814bbf0af195a7f0070591d19c5a118"`
[INFO] running `"docker" "rm" "-f" "182474a1fb01af6abf94f822728cadfc7814bbf0af195a7f0070591d19c5a118"`
[INFO] [stdout] 182474a1fb01af6abf94f822728cadfc7814bbf0af195a7f0070591d19c5a118
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/methodin/txtof:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2f768b6f884bf2114dbe49dc6ac4fad9dc29bf50fdb96101e46c60e6a7309a10
[INFO] running `"docker" "start" "-a" "2f768b6f884bf2114dbe49dc6ac4fad9dc29bf50fdb96101e46c60e6a7309a10"`
[INFO] [stderr]    Compiling txtof v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:432:25
[INFO] [stderr]     |
[INFO] [stderr] 432 |                     let mut row = page.get_current_row();
[INFO] [stderr]     |                         ----^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "2f768b6f884bf2114dbe49dc6ac4fad9dc29bf50fdb96101e46c60e6a7309a10"`
[INFO] running `"docker" "rm" "-f" "2f768b6f884bf2114dbe49dc6ac4fad9dc29bf50fdb96101e46c60e6a7309a10"`
[INFO] [stdout] 2f768b6f884bf2114dbe49dc6ac4fad9dc29bf50fdb96101e46c60e6a7309a10
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/methodin/txtof:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] b44b374c50792bd4e48bb8410e649e58b53495b38089c4d7f49d57f0fa52593d
[INFO] running `"docker" "start" "-a" "b44b374c50792bd4e48bb8410e649e58b53495b38089c4d7f49d57f0fa52593d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/txtof-b91008db7d78c9af
[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" "b44b374c50792bd4e48bb8410e649e58b53495b38089c4d7f49d57f0fa52593d"`
[INFO] running `"docker" "rm" "-f" "b44b374c50792bd4e48bb8410e649e58b53495b38089c4d7f49d57f0fa52593d"`
[INFO] [stdout] b44b374c50792bd4e48bb8410e649e58b53495b38089c4d7f49d57f0fa52593d