[INFO] updating cached repository selfup/r_b_i_e
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/selfup/r_b_i_e
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/selfup/r_b_i_e" "work/ex/beta-1.38-1/sources/1.37.0/gh/selfup/r_b_i_e"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/selfup/r_b_i_e'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/selfup/r_b_i_e" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selfup/r_b_i_e"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selfup/r_b_i_e'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 623d7a6834407adbdd8ad88275d829fc4209e01f
[INFO] sha for GitHub repo selfup/r_b_i_e: 623d7a6834407adbdd8ad88275d829fc4209e01f
[INFO] validating manifest of selfup/r_b_i_e 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 selfup/r_b_i_e 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 selfup/r_b_i_e
[INFO] finished frobbing selfup/r_b_i_e
[INFO] frobbed toml for selfup/r_b_i_e written to work/ex/beta-1.38-1/sources/1.37.0/gh/selfup/r_b_i_e/Cargo.toml
[INFO] started frobbing selfup/r_b_i_e
[INFO] finished frobbing selfup/r_b_i_e
[INFO] frobbed toml for selfup/r_b_i_e written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selfup/r_b_i_e/Cargo.toml
[INFO] crate selfup/r_b_i_e already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/selfup/r_b_i_e/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/pindell-matt/rust_bucket.git`
[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] [stderr]     Updating git repository `https://github.com/pindell-matt/rust_bucket.git`
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing selfup/r_b_i_e against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selfup/r_b_i_e:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 79d22673d811bb1f1c6d895220f9ebe96be3d63bfaf9336abceca47206ce872d
[INFO] running `"docker" "start" "-a" "79d22673d811bb1f1c6d895220f9ebe96be3d63bfaf9336abceca47206ce872d"`
[INFO] [stderr]    Compiling syntex_pos v0.39.0
[INFO] [stderr]    Compiling serde_json v0.7.4
[INFO] [stderr]    Compiling syntex_errors v0.39.0
[INFO] [stderr]    Compiling syntex_syntax v0.39.0
[INFO] [stderr] warning[E0502]: cannot borrow `cx.parse_sess.span_diagnostic` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.39.0/src/ext/expand.rs:659:25
[INFO] [stderr]     |
[INFO] [stderr] 649 |         let mut expander = MacroExpander::new(&mut cx);
[INFO] [stderr]     |                                               ------- mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 659 |         let err_count = cx.parse_sess.span_diagnostic.err_count();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here
[INFO] [stderr] 660 |         let mut ret = expander.fold_crate(c);
[INFO] [stderr]     |                       -------- mutable borrow later used here
[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]    Compiling syntex v0.39.0
[INFO] [stderr]    Compiling aster v0.22.1
[INFO] [stderr]    Compiling quasi v0.16.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.4.0
[INFO] [stderr]    Compiling quasi_codegen v0.16.0
[INFO] [stderr]    Compiling serde_codegen v0.7.15
[INFO] [stderr]    Compiling rust_bucket v0.1.0 (https://github.com/pindell-matt/rust_bucket.git#294a18cf)
[INFO] [stderr]    Compiling r_b_i_e v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.34s
[INFO] running `"docker" "inspect" "79d22673d811bb1f1c6d895220f9ebe96be3d63bfaf9336abceca47206ce872d"`
[INFO] running `"docker" "rm" "-f" "79d22673d811bb1f1c6d895220f9ebe96be3d63bfaf9336abceca47206ce872d"`
[INFO] [stdout] 79d22673d811bb1f1c6d895220f9ebe96be3d63bfaf9336abceca47206ce872d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selfup/r_b_i_e:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] cfdc6aeb172f1e8de67cd901fcdfc534089e8acc86b90e8fd0662f5b56869d5e
[INFO] running `"docker" "start" "-a" "cfdc6aeb172f1e8de67cd901fcdfc534089e8acc86b90e8fd0662f5b56869d5e"`
[INFO] [stderr]    Compiling r_b_i_e v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "cfdc6aeb172f1e8de67cd901fcdfc534089e8acc86b90e8fd0662f5b56869d5e"`
[INFO] running `"docker" "rm" "-f" "cfdc6aeb172f1e8de67cd901fcdfc534089e8acc86b90e8fd0662f5b56869d5e"`
[INFO] [stdout] cfdc6aeb172f1e8de67cd901fcdfc534089e8acc86b90e8fd0662f5b56869d5e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selfup/r_b_i_e:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] a56d118ff737d6fdb125d956f49a6f954846a2789ebd923ac063f20ea2a11d7c
[INFO] running `"docker" "start" "-a" "a56d118ff737d6fdb125d956f49a6f954846a2789ebd923ac063f20ea2a11d7c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/r_b_i_e-f703402310a81f6c
[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" "a56d118ff737d6fdb125d956f49a6f954846a2789ebd923ac063f20ea2a11d7c"`
[INFO] running `"docker" "rm" "-f" "a56d118ff737d6fdb125d956f49a6f954846a2789ebd923ac063f20ea2a11d7c"`
[INFO] [stdout] a56d118ff737d6fdb125d956f49a6f954846a2789ebd923ac063f20ea2a11d7c