[INFO] updating cached repository panicbit/cargo-health
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/panicbit/cargo-health
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/panicbit/cargo-health" "work/ex/beta-1.38-1/sources/1.37.0/gh/panicbit/cargo-health"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/panicbit/cargo-health'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/panicbit/cargo-health" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/panicbit/cargo-health"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/panicbit/cargo-health'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 901423eefa7862962cf24e87285317eb81e38c5b
[INFO] sha for GitHub repo panicbit/cargo-health: 901423eefa7862962cf24e87285317eb81e38c5b
[INFO] validating manifest of panicbit/cargo-health 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 panicbit/cargo-health 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 panicbit/cargo-health
[INFO] finished frobbing panicbit/cargo-health
[INFO] frobbed toml for panicbit/cargo-health written to work/ex/beta-1.38-1/sources/1.37.0/gh/panicbit/cargo-health/Cargo.toml
[INFO] started frobbing panicbit/cargo-health
[INFO] finished frobbing panicbit/cargo-health
[INFO] frobbed toml for panicbit/cargo-health written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/panicbit/cargo-health/Cargo.toml
[INFO] crate panicbit/cargo-health 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 panicbit/cargo-health 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/panicbit/cargo-health:/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] 3d0f743a0d1954ff79df987c799c49662dd7e8b21a46ed1b5ba3d6fc67da6265
[INFO] running `"docker" "start" "-a" "3d0f743a0d1954ff79df987c799c49662dd7e8b21a46ed1b5ba3d6fc67da6265"`
[INFO] [stderr]    Compiling futures v0.1.19
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling openssl-sys v0.9.27
[INFO] [stderr]    Compiling serde_json v1.0.13
[INFO] [stderr]    Compiling combine v3.0.0-alpha.2
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling pad v0.1.5
[INFO] [stderr]    Compiling semver v0.7.0
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling libflate v0.1.14
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling env_proxy v0.2.0
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling tokio-executor v0.1.1
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.1
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio v0.1.4
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling tokio-core v0.1.16
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tokio-tls v0.1.4
[INFO] [stderr]    Compiling toml_edit v0.1.1
[INFO] [stderr]    Compiling hyper v0.11.24
[INFO] [stderr] warning[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-0.1.1/src/index.rs:54:65
[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.as_array_mut()
[INFO] [stderr]    | |                         --------- mutable borrow occurs here
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |             _ => panic!("cannot access index {} in {:?}", self, v),
[INFO] [stderr]    | |                                                                 ^ immutable borrow occurs here
[INFO] [stderr] 55 | |         }
[INFO] [stderr]    | |_________- returning this value requires that `v.0` is borrowed for `'v`
[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[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-0.1.1/src/index.rs:85:63
[INFO] [stderr]    |
[INFO] [stderr] 68 |       fn index_or_insert<'v>(&self, v: &'v mut Item) -> &'v mut Item {
[INFO] [stderr]    |                          -- lifetime `'v` defined here
[INFO] [stderr] ...
[INFO] [stderr] 75 | /         match *v {
[INFO] [stderr] 76 | |             Item::Table(ref mut t) => t.entry(self).or_insert(Item::None),
[INFO] [stderr] 77 | |             Item::Value(ref mut v) if v.is_inline_table() => {
[INFO] [stderr]    | |                         --------- mutable borrow occurs here
[INFO] [stderr] 78 | |                 &mut v.as_inline_table_mut()
[INFO] [stderr] ...  |
[INFO] [stderr] 85 | |             _ => panic!("cannot access key {} in {:?}", self, v),
[INFO] [stderr]    | |                                                               ^ immutable borrow occurs here
[INFO] [stderr] 86 | |         }
[INFO] [stderr]    | |_________- returning this value requires that `v.0` is borrowed for `'v`
[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 hyper-tls v0.1.3
[INFO] [stderr]    Compiling reqwest v0.7.3
[INFO] [stderr]    Compiling cargo-edit v0.3.0-beta.1
[INFO] [stderr]    Compiling cargo-doctor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/util.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | / macro_rules! warn {
[INFO] [stderr] 51 | |     () => (warn!(""));
[INFO] [stderr] 52 | |     ($fmt:expr) => (warn!($fmt,));
[INFO] [stderr] 53 | |     ($fmt:expr, $($arg:tt)*) => (println!(concat!("  ⚠  ", $fmt), $($arg)*));
[INFO] [stderr] 54 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `"docker" "inspect" "3d0f743a0d1954ff79df987c799c49662dd7e8b21a46ed1b5ba3d6fc67da6265"`
[INFO] running `"docker" "rm" "-f" "3d0f743a0d1954ff79df987c799c49662dd7e8b21a46ed1b5ba3d6fc67da6265"`
[INFO] [stdout] 3d0f743a0d1954ff79df987c799c49662dd7e8b21a46ed1b5ba3d6fc67da6265
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/panicbit/cargo-health:/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] 5d9de97541f64f6fb5099b3b3320951c2cad783c3fd940612c419ba015b49b14
[INFO] running `"docker" "start" "-a" "5d9de97541f64f6fb5099b3b3320951c2cad783c3fd940612c419ba015b49b14"`
[INFO] [stderr]    Compiling cargo-doctor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/util.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | / macro_rules! warn {
[INFO] [stderr] 51 | |     () => (warn!(""));
[INFO] [stderr] 52 | |     ($fmt:expr) => (warn!($fmt,));
[INFO] [stderr] 53 | |     ($fmt:expr, $($arg:tt)*) => (println!(concat!("  ⚠  ", $fmt), $($arg)*));
[INFO] [stderr] 54 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `"docker" "inspect" "5d9de97541f64f6fb5099b3b3320951c2cad783c3fd940612c419ba015b49b14"`
[INFO] running `"docker" "rm" "-f" "5d9de97541f64f6fb5099b3b3320951c2cad783c3fd940612c419ba015b49b14"`
[INFO] [stdout] 5d9de97541f64f6fb5099b3b3320951c2cad783c3fd940612c419ba015b49b14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/panicbit/cargo-health:/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] 09b7119c00306a083c90797744b09158aa34a6b928504c569fb58b3b15676ca3
[INFO] running `"docker" "start" "-a" "09b7119c00306a083c90797744b09158aa34a6b928504c569fb58b3b15676ca3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cargo_doctor-c53edf7d107b795b
[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" "09b7119c00306a083c90797744b09158aa34a6b928504c569fb58b3b15676ca3"`
[INFO] running `"docker" "rm" "-f" "09b7119c00306a083c90797744b09158aa34a6b928504c569fb58b3b15676ca3"`
[INFO] [stdout] 09b7119c00306a083c90797744b09158aa34a6b928504c569fb58b3b15676ca3