[INFO] updating cached repository killercup/cargo-edit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/killercup/cargo-edit
[INFO] [stderr]  * branch              HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/killercup/cargo-edit" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/killercup/cargo-edit"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/killercup/cargo-edit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/killercup/cargo-edit" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/killercup/cargo-edit"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/killercup/cargo-edit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c897e0a2e9bc6fe089d1a8cd61eb0a267947de6d
[INFO] sha for GitHub repo killercup/cargo-edit: c897e0a2e9bc6fe089d1a8cd61eb0a267947de6d
[INFO] validating manifest of killercup/cargo-edit on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of killercup/cargo-edit on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing killercup/cargo-edit
[INFO] finished frobbing killercup/cargo-edit
[INFO] frobbed toml for killercup/cargo-edit written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/killercup/cargo-edit/Cargo.toml
[INFO] started frobbing killercup/cargo-edit
[INFO] finished frobbing killercup/cargo-edit
[INFO] frobbed toml for killercup/cargo-edit written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/killercup/cargo-edit/Cargo.toml
[INFO] crate killercup/cargo-edit already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking killercup/cargo-edit against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-1/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/killercup/cargo-edit:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] da07b7853012facf688bd9f920cb4a7b1550960040764e89bcc73602d8b7b81e
[INFO] running `"docker" "start" "-a" "da07b7853012facf688bd9f920cb4a7b1550960040764e89bcc73602d8b7b81e"`
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking openssl v0.10.23
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]    Compiling structopt-derive v0.2.17
[INFO] [stderr]     Checking env_proxy v0.3.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.0
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking structopt v0.2.17
[INFO] [stderr]     Checking h2 v0.1.22
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking toml_edit v0.1.3
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking cargo_metadata v0.6.4
[INFO] [stderr]     Checking assert_cli v0.6.3
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[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-0.1.3/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]    = 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-0.1.3/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]    = 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]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.21
[INFO] [stderr]     Checking hyper v0.12.29
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.17
[INFO] [stderr]     Checking cargo-edit v0.3.2 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `execute_bad_command`
[INFO] [stderr]   --> tests/utils.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / pub fn execute_bad_command<S>(command: &[S], manifest: &str)
[INFO] [stderr] 24 | | where
[INFO] [stderr] 25 | |     S: AsRef<OsStr>,
[INFO] [stderr] 26 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |     }
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `execute_bad_command`
[INFO] [stderr]   --> tests/utils.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / pub fn execute_bad_command<S>(command: &[S], manifest: &str)
[INFO] [stderr] 24 | | where
[INFO] [stderr] 25 | |     S: AsRef<OsStr>,
[INFO] [stderr] 26 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 41 | |     }
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `"docker" "inspect" "da07b7853012facf688bd9f920cb4a7b1550960040764e89bcc73602d8b7b81e"`
[INFO] running `"docker" "rm" "-f" "da07b7853012facf688bd9f920cb4a7b1550960040764e89bcc73602d8b7b81e"`
[INFO] [stdout] da07b7853012facf688bd9f920cb4a7b1550960040764e89bcc73602d8b7b81e