[INFO] updating cached repository MaikKlein/becs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MaikKlein/becs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MaikKlein/becs" "work/ex/beta-1.37-6/sources/1.36.0/gh/MaikKlein/becs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/MaikKlein/becs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MaikKlein/becs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MaikKlein/becs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MaikKlein/becs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4a5c5a82af7f5b6745767db0eac5b58a53c87db6
[INFO] sha for GitHub repo MaikKlein/becs: 4a5c5a82af7f5b6745767db0eac5b58a53c87db6
[INFO] validating manifest of MaikKlein/becs 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 MaikKlein/becs 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 MaikKlein/becs
[INFO] finished frobbing MaikKlein/becs
[INFO] frobbed toml for MaikKlein/becs written to work/ex/beta-1.37-6/sources/1.36.0/gh/MaikKlein/becs/Cargo.toml
[INFO] started frobbing MaikKlein/becs
[INFO] finished frobbing MaikKlein/becs
[INFO] frobbed toml for MaikKlein/becs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/MaikKlein/becs/Cargo.toml
[INFO] crate MaikKlein/becs 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 MaikKlein/becs 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-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/MaikKlein/becs:/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] d4ab8c1aadebdaee6f662cef1fd383289b47e3ee0366b1d99264d730b9c9b508
[INFO] running `"docker" "start" "-a" "d4ab8c1aadebdaee6f662cef1fd383289b47e3ee0366b1d99264d730b9c9b508"`
[INFO] [stderr]    Compiling becs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::mem::transmute`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem::transmute;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/lib.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |         if (r1.is_none() || r2.is_none()) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "d4ab8c1aadebdaee6f662cef1fd383289b47e3ee0366b1d99264d730b9c9b508"`
[INFO] running `"docker" "rm" "-f" "d4ab8c1aadebdaee6f662cef1fd383289b47e3ee0366b1d99264d730b9c9b508"`
[INFO] [stdout] d4ab8c1aadebdaee6f662cef1fd383289b47e3ee0366b1d99264d730b9c9b508
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/MaikKlein/becs:/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] 01ca7dffebfc11ea5262984482059d31ef0f95807c6950d1057513dffae326c4
[INFO] running `"docker" "start" "-a" "01ca7dffebfc11ea5262984482059d31ef0f95807c6950d1057513dffae326c4"`
[INFO] [stderr]    Compiling becs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::mem::transmute`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::mem::transmute;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/lib.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |         if (r1.is_none() || r2.is_none()) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "01ca7dffebfc11ea5262984482059d31ef0f95807c6950d1057513dffae326c4"`
[INFO] running `"docker" "rm" "-f" "01ca7dffebfc11ea5262984482059d31ef0f95807c6950d1057513dffae326c4"`
[INFO] [stdout] 01ca7dffebfc11ea5262984482059d31ef0f95807c6950d1057513dffae326c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/MaikKlein/becs:/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] 47e1b974b8acacdae4f1f18fa62791192fe6f074494e7ef3485e111c81c8aa9e
[INFO] running `"docker" "start" "-a" "47e1b974b8acacdae4f1f18fa62791192fe6f074494e7ef3485e111c81c8aa9e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/becs-536c217b5eea85aa
[INFO] [stderr]    Doc-tests becs
[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] [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" "47e1b974b8acacdae4f1f18fa62791192fe6f074494e7ef3485e111c81c8aa9e"`
[INFO] running `"docker" "rm" "-f" "47e1b974b8acacdae4f1f18fa62791192fe6f074494e7ef3485e111c81c8aa9e"`
[INFO] [stdout] 47e1b974b8acacdae4f1f18fa62791192fe6f074494e7ef3485e111c81c8aa9e