[INFO] updating cached repository puppyofkosh/safer-c-compiler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/puppyofkosh/safer-c-compiler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/puppyofkosh/safer-c-compiler" "work/ex/beta-1.37-6/sources/1.36.0/gh/puppyofkosh/safer-c-compiler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/puppyofkosh/safer-c-compiler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/puppyofkosh/safer-c-compiler" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/puppyofkosh/safer-c-compiler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/puppyofkosh/safer-c-compiler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9a53e4b6c2ca2756fb91fbade4407e64796adfed
[INFO] sha for GitHub repo puppyofkosh/safer-c-compiler: 9a53e4b6c2ca2756fb91fbade4407e64796adfed
[INFO] validating manifest of puppyofkosh/safer-c-compiler 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 puppyofkosh/safer-c-compiler 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 puppyofkosh/safer-c-compiler
[INFO] finished frobbing puppyofkosh/safer-c-compiler
[INFO] frobbed toml for puppyofkosh/safer-c-compiler written to work/ex/beta-1.37-6/sources/1.36.0/gh/puppyofkosh/safer-c-compiler/Cargo.toml
[INFO] started frobbing puppyofkosh/safer-c-compiler
[INFO] finished frobbing puppyofkosh/safer-c-compiler
[INFO] frobbed toml for puppyofkosh/safer-c-compiler written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/puppyofkosh/safer-c-compiler/Cargo.toml
[INFO] crate puppyofkosh/safer-c-compiler 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 puppyofkosh/safer-c-compiler 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/puppyofkosh/safer-c-compiler:/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] dbbedbded02394dd0d9bfdaf7e8fa98152842e7628ebec7d58d4c7ff63c6f6bf
[INFO] running `"docker" "start" "-a" "dbbedbded02394dd0d9bfdaf7e8fa98152842e7628ebec7d58d4c7ff63c6f6bf"`
[INFO] [stderr]    Compiling safer-c-compiler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ast::Block`
[INFO] [stderr]  --> src/pointer_arithmetic_transformer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ast::Block;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/x86_code_generator.rs:390:25
[INFO] [stderr]     |
[INFO] [stderr] 390 |                     let mut current_block = self.blocks.last_mut().unwrap();
[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 3.82s
[INFO] running `"docker" "inspect" "dbbedbded02394dd0d9bfdaf7e8fa98152842e7628ebec7d58d4c7ff63c6f6bf"`
[INFO] running `"docker" "rm" "-f" "dbbedbded02394dd0d9bfdaf7e8fa98152842e7628ebec7d58d4c7ff63c6f6bf"`
[INFO] [stdout] dbbedbded02394dd0d9bfdaf7e8fa98152842e7628ebec7d58d4c7ff63c6f6bf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/puppyofkosh/safer-c-compiler:/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] 2a5ed53129d865201899b375c8665c8b5bbd35de406aa9152cc6f2582f8a9e37
[INFO] running `"docker" "start" "-a" "2a5ed53129d865201899b375c8665c8b5bbd35de406aa9152cc6f2582f8a9e37"`
[INFO] [stderr]    Compiling safer-c-compiler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ast::Block`
[INFO] [stderr]  --> src/pointer_arithmetic_transformer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ast::Block;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/x86_code_generator.rs:390:25
[INFO] [stderr]     |
[INFO] [stderr] 390 |                     let mut current_block = self.blocks.last_mut().unwrap();
[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 1.18s
[INFO] running `"docker" "inspect" "2a5ed53129d865201899b375c8665c8b5bbd35de406aa9152cc6f2582f8a9e37"`
[INFO] running `"docker" "rm" "-f" "2a5ed53129d865201899b375c8665c8b5bbd35de406aa9152cc6f2582f8a9e37"`
[INFO] [stdout] 2a5ed53129d865201899b375c8665c8b5bbd35de406aa9152cc6f2582f8a9e37
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/puppyofkosh/safer-c-compiler:/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] 202738c22ca8de027959f5452fc4c407152ec67a66a533e246e421da5911de00
[INFO] running `"docker" "start" "-a" "202738c22ca8de027959f5452fc4c407152ec67a66a533e246e421da5911de00"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/safer_c_compiler-6af58139e4b75ccb
[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" "202738c22ca8de027959f5452fc4c407152ec67a66a533e246e421da5911de00"`
[INFO] running `"docker" "rm" "-f" "202738c22ca8de027959f5452fc4c407152ec67a66a533e246e421da5911de00"`
[INFO] [stdout] 202738c22ca8de027959f5452fc4c407152ec67a66a533e246e421da5911de00