[INFO] updating cached repository euclio/apply-license
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/euclio/apply-license
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/euclio/apply-license" "work/ex/beta-1.38-1/sources/1.37.0/gh/euclio/apply-license"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/euclio/apply-license'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/euclio/apply-license" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/euclio/apply-license"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/euclio/apply-license'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4636c950e834a3f85150782a79e6d2e52df516b4
[INFO] sha for GitHub repo euclio/apply-license: 4636c950e834a3f85150782a79e6d2e52df516b4
[INFO] validating manifest of euclio/apply-license 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 euclio/apply-license 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 euclio/apply-license
[INFO] finished frobbing euclio/apply-license
[INFO] frobbed toml for euclio/apply-license written to work/ex/beta-1.38-1/sources/1.37.0/gh/euclio/apply-license/Cargo.toml
[INFO] started frobbing euclio/apply-license
[INFO] finished frobbing euclio/apply-license
[INFO] frobbed toml for euclio/apply-license written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/euclio/apply-license/Cargo.toml
[INFO] crate euclio/apply-license 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing euclio/apply-license 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-7/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/euclio/apply-license:/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] 36e1a7e94afd362d2a465c55193cc6454c577bc65d9127727dde702d5029a48e
[INFO] running `"docker" "start" "-a" "36e1a7e94afd362d2a465c55193cc6454c577bc65d9127727dde702d5029a48e"`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling pest_derive v1.0.7
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]    Compiling aho-corasick v0.6.5
[INFO] [stderr]    Compiling combine v3.3.6
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling chrono v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]    Compiling handlebars v0.32.4
[INFO] [stderr]    Compiling structopt v0.2.10
[INFO] [stderr]    Compiling toml_edit v0.1.3
[INFO] [stderr]    Compiling cargo_metadata v0.5.8
[INFO] [stderr] error[E0502]: cannot borrow `v` as immutable because it is also borrowed as mutable
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/toml_edit-0.1.3/src/index.rs:55:65
[INFO] [stderr]    |
[INFO] [stderr] 44 |       fn index_or_insert<'v>(&self, v: &'v mut Item) -> &'v mut Item {
[INFO] [stderr]    |                          -- lifetime `'v` defined here
[INFO] [stderr] 45 | /         match *v {
[INFO] [stderr] 46 | |             Item::ArrayOfTables(ref mut vec) => {
[INFO] [stderr] 47 | |                 vec.values.get_mut(*self).expect("index out of bounds")
[INFO] [stderr] 48 | |             }
[INFO] [stderr] 49 | |             Item::Value(ref mut a) if a.is_array() => a
[INFO] [stderr]    | |                         --------- mutable borrow occurs here
[INFO] [stderr] ...  |
[INFO] [stderr] 55 | |             _ => panic!("cannot access index {} in {:?}", self, v),
[INFO] [stderr]    | |                                                                 ^ immutable borrow occurs here
[INFO] [stderr] 56 | |         }
[INFO] [stderr]    | |_________- returning this value requires that `v.0` is borrowed for `'v`
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `v` as immutable because it is also borrowed as mutable
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/toml_edit-0.1.3/src/index.rs:88:63
[INFO] [stderr]    |
[INFO] [stderr] 70 |       fn index_or_insert<'v>(&self, v: &'v mut Item) -> &'v mut Item {
[INFO] [stderr]    |                          -- lifetime `'v` defined here
[INFO] [stderr] ...
[INFO] [stderr] 77 | /         match *v {
[INFO] [stderr] 78 | |             Item::Table(ref mut t) => t.entry(self).or_insert(Item::None),
[INFO] [stderr] 79 | |             Item::Value(ref mut v) if v.is_inline_table() => {
[INFO] [stderr]    | |                         --------- mutable borrow occurs here
[INFO] [stderr] 80 | |                 &mut v
[INFO] [stderr] ...  |
[INFO] [stderr] 88 | |             _ => panic!("cannot access key {} in {:?}", self, v),
[INFO] [stderr]    | |                                                               ^ immutable borrow occurs here
[INFO] [stderr] 89 | |         }
[INFO] [stderr]    | |_________- returning this value requires that `v.0` is borrowed for `'v`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: Could not compile `toml_edit`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "36e1a7e94afd362d2a465c55193cc6454c577bc65d9127727dde702d5029a48e"`
[INFO] running `"docker" "rm" "-f" "36e1a7e94afd362d2a465c55193cc6454c577bc65d9127727dde702d5029a48e"`
[INFO] [stdout] 36e1a7e94afd362d2a465c55193cc6454c577bc65d9127727dde702d5029a48e