[INFO] crate printf 0.1.0 is already in cache
[INFO] extracting crate printf 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/printf/0.1.0
[INFO] extracting crate printf 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/printf/0.1.0
[INFO] validating manifest of printf-0.1.0 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 printf-0.1.0 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 printf-0.1.0
[INFO] finished frobbing printf-0.1.0
[INFO] frobbed toml for printf-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/printf/0.1.0/Cargo.toml
[INFO] started frobbing printf-0.1.0
[INFO] finished frobbing printf-0.1.0
[INFO] frobbed toml for printf-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/printf/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 printf-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/printf/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 2b19c818a3edb938575c15731694badd75d5c0df4fca76f71536d2e557faaa1d
[INFO] running `"docker" "start" "-a" "2b19c818a3edb938575c15731694badd75d5c0df4fca76f71536d2e557faaa1d"`
[INFO] [stderr]    Compiling printf v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'gcc::compile_library': crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stderr]  --> build.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     gcc::compile_library("libprintf_wrapper.a", &["src/printf_wrapper.c"]);
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "2b19c818a3edb938575c15731694badd75d5c0df4fca76f71536d2e557faaa1d"`
[INFO] running `"docker" "rm" "-f" "2b19c818a3edb938575c15731694badd75d5c0df4fca76f71536d2e557faaa1d"`
[INFO] [stdout] 2b19c818a3edb938575c15731694badd75d5c0df4fca76f71536d2e557faaa1d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/printf/0.1.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 52906a50b53d962a62f067f551c7894d7c35456330148ed799d8e9a0606f5a42
[INFO] running `"docker" "start" "-a" "52906a50b53d962a62f067f551c7894d7c35456330148ed799d8e9a0606f5a42"`
[INFO] [stderr]    Compiling printf v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "52906a50b53d962a62f067f551c7894d7c35456330148ed799d8e9a0606f5a42"`
[INFO] running `"docker" "rm" "-f" "52906a50b53d962a62f067f551c7894d7c35456330148ed799d8e9a0606f5a42"`
[INFO] [stdout] 52906a50b53d962a62f067f551c7894d7c35456330148ed799d8e9a0606f5a42
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/printf/0.1.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] c6acca242ea479a0bd5f75809db8dfef100127e3904469af6f9e7f4317dba638
[INFO] running `"docker" "start" "-a" "c6acca242ea479a0bd5f75809db8dfef100127e3904469af6f9e7f4317dba638"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/printf-a6a1148b9dcf9e2e
[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] [stderr]    Doc-tests printf
[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" "c6acca242ea479a0bd5f75809db8dfef100127e3904469af6f9e7f4317dba638"`
[INFO] running `"docker" "rm" "-f" "c6acca242ea479a0bd5f75809db8dfef100127e3904469af6f9e7f4317dba638"`
[INFO] [stdout] c6acca242ea479a0bd5f75809db8dfef100127e3904469af6f9e7f4317dba638