[INFO] updating cached repository mmueller/advent2016 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mmueller/advent2016 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mmueller/advent2016" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/mmueller/advent2016"` [INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/mmueller/advent2016'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mmueller/advent2016" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/mmueller/advent2016"` [INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/mmueller/advent2016'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ae140beb832ff98fd285c54d7100d9835c2399a1 [INFO] sha for GitHub repo mmueller/advent2016: ae140beb832ff98fd285c54d7100d9835c2399a1 [INFO] validating manifest of mmueller/advent2016 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mmueller/advent2016 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing mmueller/advent2016 [INFO] finished frobbing mmueller/advent2016 [INFO] frobbed toml for mmueller/advent2016 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/mmueller/advent2016/Cargo.toml [INFO] started frobbing mmueller/advent2016 [INFO] finished frobbing mmueller/advent2016 [INFO] frobbed toml for mmueller/advent2016 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/mmueller/advent2016/Cargo.toml [INFO] crate mmueller/advent2016 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] checking mmueller/advent2016 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/mmueller/advent2016:/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=forbid" "-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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d52f2e860733fe2d9bb71cd48f86803fdc0794b2abbd8bfe8e75037e958cef86 [INFO] running `"docker" "start" "-a" "d52f2e860733fe2d9bb71cd48f86803fdc0794b2abbd8bfe8e75037e958cef86"` [INFO] [stderr] Compiling backtrace-sys v0.1.5 [INFO] [stderr] Checking backtrace v0.3.0 [INFO] [stderr] Checking error-chain v0.7.1 [INFO] [stderr] Checking advent2016 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning[E0503]: cannot use `day` because it was mutably borrowed [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 29 | parser.refer(&mut day) [INFO] [stderr] | -------- borrow of `day` occurs here [INFO] [stderr] ... [INFO] [stderr] 34 | Some(1) => day1::day1(), [INFO] [stderr] | ^^^^^^^ use of borrowed `day` [INFO] [stderr] ... [INFO] [stderr] 62 | } [INFO] [stderr] | - borrow might be used here, when `parser` is dropped and runs the destructor for type `argparse::ArgumentParser<'_>` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0503]: cannot use `day.0` because it was mutably borrowed [INFO] [stderr] --> src/main.rs:34:14 [INFO] [stderr] | [INFO] [stderr] 29 | parser.refer(&mut day) [INFO] [stderr] | -------- borrow of `day` occurs here [INFO] [stderr] ... [INFO] [stderr] 34 | Some(1) => day1::day1(), [INFO] [stderr] | ^ use of borrowed `day` [INFO] [stderr] ... [INFO] [stderr] 62 | } [INFO] [stderr] | - borrow might be used here, when `parser` is dropped and runs the destructor for type `argparse::ArgumentParser<'_>` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0503]: cannot use `day` because it was mutably borrowed [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 29 | parser.refer(&mut day) [INFO] [stderr] | -------- borrow of `day` occurs here [INFO] [stderr] ... [INFO] [stderr] 34 | Some(1) => day1::day1(), [INFO] [stderr] | ^^^^^^^ use of borrowed `day` [INFO] [stderr] ... [INFO] [stderr] 62 | } [INFO] [stderr] | - borrow might be used here, when `parser` is dropped and runs the destructor for type `argparse::ArgumentParser<'_>` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0503]: cannot use `day.0` because it was mutably borrowed [INFO] [stderr] --> src/main.rs:34:14 [INFO] [stderr] | [INFO] [stderr] 29 | parser.refer(&mut day) [INFO] [stderr] | -------- borrow of `day` occurs here [INFO] [stderr] ... [INFO] [stderr] 34 | Some(1) => day1::day1(), [INFO] [stderr] | ^ use of borrowed `day` [INFO] [stderr] ... [INFO] [stderr] 62 | } [INFO] [stderr] | - borrow might be used here, when `parser` is dropped and runs the destructor for type `argparse::ArgumentParser<'_>` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.07s [INFO] running `"docker" "inspect" "d52f2e860733fe2d9bb71cd48f86803fdc0794b2abbd8bfe8e75037e958cef86"` [INFO] running `"docker" "rm" "-f" "d52f2e860733fe2d9bb71cd48f86803fdc0794b2abbd8bfe8e75037e958cef86"` [INFO] [stdout] d52f2e860733fe2d9bb71cd48f86803fdc0794b2abbd8bfe8e75037e958cef86