[INFO] updating cached repository chrisccerami/libcore
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chrisccerami/libcore
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chrisccerami/libcore" "work/ex/beta-1.37-6/sources/1.36.0/gh/chrisccerami/libcore"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/chrisccerami/libcore'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chrisccerami/libcore" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/chrisccerami/libcore"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/chrisccerami/libcore'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 143e98d37c94699135dcf6bbf5b36d464af7110b
[INFO] sha for GitHub repo chrisccerami/libcore: 143e98d37c94699135dcf6bbf5b36d464af7110b
[INFO] validating manifest of chrisccerami/libcore on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chrisccerami/libcore on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chrisccerami/libcore
[INFO] finished frobbing chrisccerami/libcore
[INFO] frobbed toml for chrisccerami/libcore written to work/ex/beta-1.37-6/sources/1.36.0/gh/chrisccerami/libcore/Cargo.toml
[INFO] started frobbing chrisccerami/libcore
[INFO] finished frobbing chrisccerami/libcore
[INFO] frobbed toml for chrisccerami/libcore written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/chrisccerami/libcore/Cargo.toml
[INFO] crate chrisccerami/libcore already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chrisccerami/libcore against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/chrisccerami/libcore:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 2cdc8f1367349fae0d89afbb7df1f3730fd8b0dff53d2394a6160a2ee3907b80
[INFO] running `"docker" "start" "-a" "2cdc8f1367349fae0d89afbb7df1f3730fd8b0dff53d2394a6160a2ee3907b80"`
[INFO] [stderr]    Compiling core v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] error: unexpected token: `...`
[INFO] [stderr]    --> slice.rs:636:21
[INFO] [stderr]     |
[INFO] [stderr] 636 |         self.index(0...index.end)
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] help: use `..` for an exclusive range
[INFO] [stderr]     |
[INFO] [stderr] 636 |         self.index(0..index.end)
[INFO] [stderr]     |                     ^^
[INFO] [stderr] help: or `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr] 636 |         self.index(0..=index.end)
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: unexpected token: `...`
[INFO] [stderr]    --> slice.rs:726:25
[INFO] [stderr]     |
[INFO] [stderr] 726 |         self.index_mut(0...index.end)
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] help: use `..` for an exclusive range
[INFO] [stderr]     |
[INFO] [stderr] 726 |         self.index_mut(0..index.end)
[INFO] [stderr]     |                         ^^
[INFO] [stderr] help: or `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr] 726 |         self.index_mut(0..=index.end)
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] error: unexpected token: `...`
[INFO] [stderr]     --> str/mod.rs:1571:25
[INFO] [stderr]      |
[INFO] [stderr] 1571 |             self.index(0...index.end)
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] help: use `..` for an exclusive range
[INFO] [stderr]      |
[INFO] [stderr] 1571 |             self.index(0..index.end)
[INFO] [stderr]      |                         ^^
[INFO] [stderr] help: or `..=` for an inclusive range
[INFO] [stderr]      |
[INFO] [stderr] 1571 |             self.index(0..=index.end)
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] error: unexpected token: `...`
[INFO] [stderr]     --> str/mod.rs:1596:29
[INFO] [stderr]      |
[INFO] [stderr] 1596 |             self.index_mut(0...index.end)
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] help: use `..` for an exclusive range
[INFO] [stderr]      |
[INFO] [stderr] 1596 |             self.index_mut(0..index.end)
[INFO] [stderr]      |                             ^^
[INFO] [stderr] help: or `..=` for an inclusive range
[INFO] [stderr]      |
[INFO] [stderr] 1596 |             self.index_mut(0..=index.end)
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]   --> lib.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 74 | #![feature(reflect)]
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: allow_internal_unstable expects list of feature names. In the future this will become a hard error. Please use `allow_internal_unstable(foo, bar)` to only allow the `foo` and `bar` features
[INFO] [stderr]   --> macros.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[allow_internal_unstable]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: `impl Trait for .. {}` is an obsolete syntax
[INFO] [stderr]   --> marker.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | unsafe impl Send for .. { }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: use `auto trait Trait {}` instead
[INFO] [stderr] 
[INFO] [stderr] error: `impl Trait for .. {}` is an obsolete syntax
[INFO] [stderr]    --> marker.rs:234:1
[INFO] [stderr]     |
[INFO] [stderr] 234 | unsafe impl Sync for .. { }
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: use `auto trait Trait {}` instead
[INFO] [stderr] 
[INFO] [stderr] error: `impl Trait for .. {}` is an obsolete syntax
[INFO] [stderr]    --> marker.rs:463:1
[INFO] [stderr]     |
[INFO] [stderr] 463 | impl Reflect for .. { }
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: use `auto trait Trait {}` instead
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the derive macro `Copy`
[INFO] [stderr]    --> cell.rs:280:10
[INFO] [stderr]     |
[INFO] [stderr] 280 | #[derive(Copy, Clone, PartialEq, Eq, Debug)]
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error: cannot determine resolution for the derive macro `Copy`
[INFO] [stderr]    --> raw.rs:146:10
[INFO] [stderr]     |
[INFO] [stderr] 146 | #[derive(Copy, Clone)]
[INFO] [stderr]     |          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> num/mod.rs:42:70
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub struct Wrapping<T>(#[stable(feature = "rust1", since = "1.0.0")] pub T);
[INFO] [stderr]    |                                                                      ^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/flt2dec/decoder.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub mant: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/flt2dec/decoder.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub minus: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/flt2dec/decoder.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub plus: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/flt2dec/decoder.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub exp: i16,
[INFO] [stderr]    |     ^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/flt2dec/decoder.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub inclusive: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/flt2dec/decoder.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     Finite(Decoded),
[INFO] [stderr]    |            ^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> num/flt2dec/mod.rs:178:10
[INFO] [stderr]     |
[INFO] [stderr] 178 |     Zero(usize),
[INFO] [stderr]     |          ^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> num/flt2dec/mod.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |     Num(u16),
[INFO] [stderr]     |         ^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> num/flt2dec/mod.rs:182:10
[INFO] [stderr]     |
[INFO] [stderr] 182 |     Copy(&'a [u8]),
[INFO] [stderr]     |          ^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]    --> num/flt2dec/mod.rs:178:10
[INFO] [stderr]     |
[INFO] [stderr] 178 |     Zero(usize),
[INFO] [stderr]     |          ^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]    --> num/flt2dec/mod.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |     Num(u16),
[INFO] [stderr]     |         ^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]    --> num/flt2dec/mod.rs:182:10
[INFO] [stderr]     |
[INFO] [stderr] 182 |     Copy(&'a [u8]),
[INFO] [stderr]     |          ^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/dec2flt/rawfp.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub sig: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/dec2flt/rawfp.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub k: i16,
[INFO] [stderr]    |     ^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> num/dec2flt/parse.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub integral: &'a [u8],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> num/dec2flt/parse.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fractional: &'a [u8],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> num/dec2flt/parse.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub exp: i64,
[INFO] [stderr]    |     ^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> num/dec2flt/parse.rs:50:11
[INFO] [stderr]    |
[INFO] [stderr] 50 |     Valid(Decimal<'a>),
[INFO] [stderr]    |           ^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/diy_float.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub f: u64,
[INFO] [stderr]    |     ^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> num/diy_float.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub e: i16,
[INFO] [stderr]    |     ^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> nonzero.rs:39:33
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub struct NonZero<T: Zeroable>(T);
[INFO] [stderr]    |                                 ^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]     --> ops.rs:1523:5
[INFO] [stderr]      |
[INFO] [stderr] 1523 |     pub start: Idx,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]     --> ops.rs:1526:5
[INFO] [stderr]      |
[INFO] [stderr] 1526 |     pub end: Idx,
[INFO] [stderr]      |     ^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]     --> ops.rs:1582:5
[INFO] [stderr]      |
[INFO] [stderr] 1582 |     pub start: Idx,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]     --> ops.rs:1631:5
[INFO] [stderr]      |
[INFO] [stderr] 1631 |     pub end: Idx,
[INFO] [stderr]      |     ^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]     --> ops.rs:1688:9
[INFO] [stderr]      |
[INFO] [stderr] 1688 |         at: Idx
[INFO] [stderr]      |         ^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]     --> ops.rs:1699:9
[INFO] [stderr]      |
[INFO] [stderr] 1699 |         start: Idx,
[INFO] [stderr]      |         ^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]     --> ops.rs:1704:9
[INFO] [stderr]      |
[INFO] [stderr] 1704 |         end: Idx,
[INFO] [stderr]      |         ^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]     --> ops.rs:1788:5
[INFO] [stderr]      |
[INFO] [stderr] 1788 |     pub end: Idx,
[INFO] [stderr]      |     ^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> any.rs:218:5
[INFO] [stderr]     |
[INFO] [stderr] 218 |     t: u64,
[INFO] [stderr]     |     ^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]    --> any.rs:218:5
[INFO] [stderr]     |
[INFO] [stderr] 218 |     t: u64,
[INFO] [stderr]     |     ^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]    --> option.rs:168:56
[INFO] [stderr]     |
[INFO] [stderr] 168 |     Some(#[stable(feature = "rust1", since = "1.0.0")] T)
[INFO] [stderr]     |                                                        ^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> raw.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     pub data: *mut (),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> raw.rs:150:5
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub vtable: *mut (),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]    --> result.rs:253:54
[INFO] [stderr]     |
[INFO] [stderr] 253 |     Ok(#[stable(feature = "rust1", since = "1.0.0")] T),
[INFO] [stderr]     |                                                      ^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]    --> result.rs:257:55
[INFO] [stderr]     |
[INFO] [stderr] 257 |     Err(#[stable(feature = "rust1", since = "1.0.0")] E)
[INFO] [stderr]     |                                                       ^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> str/pattern.rs:81:11
[INFO] [stderr]    |
[INFO] [stderr] 81 |     Match(usize, usize),
[INFO] [stderr]    |           ^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> str/pattern.rs:81:18
[INFO] [stderr]    |
[INFO] [stderr] 81 |     Match(usize, usize),
[INFO] [stderr]    |                  ^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> str/pattern.rs:87:12
[INFO] [stderr]    |
[INFO] [stderr] 87 |     Reject(usize, usize),
[INFO] [stderr]    |            ^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> str/pattern.rs:87:19
[INFO] [stderr]    |
[INFO] [stderr] 87 |     Reject(usize, usize),
[INFO] [stderr]    |                   ^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> str/pattern.rs:81:11
[INFO] [stderr]    |
[INFO] [stderr] 81 |     Match(usize, usize),
[INFO] [stderr]    |           ^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> str/pattern.rs:81:18
[INFO] [stderr]    |
[INFO] [stderr] 81 |     Match(usize, usize),
[INFO] [stderr]    |                  ^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> str/pattern.rs:87:12
[INFO] [stderr]    |
[INFO] [stderr] 87 |     Reject(usize, usize),
[INFO] [stderr]    |            ^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]   --> str/pattern.rs:87:19
[INFO] [stderr]    |
[INFO] [stderr] 87 |     Reject(usize, usize),
[INFO] [stderr]    |                   ^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsEq` in module `$crate::cmp`
[INFO] [stderr]    --> str/mod.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     valid_up_to: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^ not found in `$crate::cmp`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> str/mod.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     valid_up_to: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]     --> str/mod.rs:1307:5
[INFO] [stderr]      |
[INFO] [stderr] 1307 |     pub ch: char,
[INFO] [stderr]      |     ^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]     --> str/mod.rs:1309:5
[INFO] [stderr]      |
[INFO] [stderr] 1309 |     pub next: usize,
[INFO] [stderr]      |     ^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub position: Position,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub format: FormatSpec,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fill: char,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub align: Alignment,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub flags: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub precision: Count,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub width: Count,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Is(usize),
[INFO] [stderr]    |        ^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:49:11
[INFO] [stderr]    |
[INFO] [stderr] 49 |     Param(usize),
[INFO] [stderr]    |           ^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]   --> fmt/rt/v1.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 |     At(usize),
[INFO] [stderr]    |        ^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> fmt/mod.rs:286:5
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pieces: &'a [&'a str],
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> fmt/mod.rs:289:5
[INFO] [stderr]     |
[INFO] [stderr] 289 |     fmt: Option<&'a [rt::v1::Argument]>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `AssertParamIsClone` in module `$crate::clone`
[INFO] [stderr]    --> fmt/mod.rs:293:5
[INFO] [stderr]     |
[INFO] [stderr] 293 |     args: &'a [ArgumentV1<'a>],
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in `$crate::clone`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | #![feature(allow_internal_unstable)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | #![feature(associated_type_defaults)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | #![feature(concat_idents)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:65:1
[INFO] [stderr]    |
[INFO] [stderr] 65 | #![feature(const_fn)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | #![feature(custom_attribute)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | #![feature(fundamental)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | #![feature(inclusive_range_syntax)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:69:1
[INFO] [stderr]    |
[INFO] [stderr] 69 | #![feature(intrinsics)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | #![feature(lang_items)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | #![feature(no_core)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | #![feature(on_unimplemented)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | #![feature(optin_builtin_traits)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | #![feature(reflect)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | #![feature(unwind_attributes)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | #![feature(repr_simd, platform_intrinsics)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | #![feature(rustc_attrs)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:78:1
[INFO] [stderr]    |
[INFO] [stderr] 78 | #![feature(specialization)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | #![feature(staged_api)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | #![feature(unboxed_closures)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> lib.rs:81:1
[INFO] [stderr]    |
[INFO] [stderr] 81 | #![feature(question_mark)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: attribute must be of the form `#[unwind(allowed|aborts)]`
[INFO] [stderr]   --> panicking.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         #[unwind]
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Try` in `ops`
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> num/float_macros.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / macro_rules! assert_approx_eq {
[INFO] [stderr] 14 | |     ($a:expr, $b:expr) => ({
[INFO] [stderr] 15 | |         use num::Float;
[INFO] [stderr] 16 | |         let (a, b) = (&$a, &$b);
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |     })
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> lib.rs:60:31
[INFO] [stderr]    |
[INFO] [stderr] 60 | #![cfg_attr(not(stage0), deny(warnings))]
[INFO] [stderr]    |                               ^^^^^^^^
[INFO] [stderr]    = note: #[warn(unused_macros)] implied by #[warn(warnings)]
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Eq`
[INFO] [stderr]   --> num/mod.rs:17:11
[INFO] [stderr]    |
[INFO] [stderr] 17 | use cmp::{Eq, PartialOrd};
[INFO] [stderr]    |           ^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> lib.rs:60:31
[INFO] [stderr]    |
[INFO] [stderr] 60 | #![cfg_attr(not(stage0), deny(warnings))]
[INFO] [stderr]    |                               ^^^^^^^^
[INFO] [stderr]    = note: #[warn(unused_imports)] implied by #[warn(warnings)]
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> num/wrapping.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | / macro_rules! sh_impl_signed {
[INFO] [stderr] 16 | |     ($t:ident, $f:ident) => (
[INFO] [stderr] 17 | |         #[stable(feature = "rust1", since = "1.0.0")]
[INFO] [stderr] 18 | |         impl Shl<$f> for Wrapping<$t> {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |     )
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> num/mod.rs:119:1
[INFO] [stderr]     |
[INFO] [stderr] 119 | / macro_rules! checked_op {
[INFO] [stderr] 120 | |     ($U:ty, $op:path, $x:expr, $y:expr) => {{
[INFO] [stderr] 121 | |         let (result, overflowed) = unsafe { $op($x as $U, $y as $U) };
[INFO] [stderr] 122 | |         if overflowed { None } else { Some(result as Self) }
[INFO] [stderr] 123 | |     }}
[INFO] [stderr] 124 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> ops.rs:533:1
[INFO] [stderr]     |
[INFO] [stderr] 533 | / macro_rules! neg_impl_unsigned {
[INFO] [stderr] 534 | |     ($($t:ty)*) => {
[INFO] [stderr] 535 | |         neg_impl_core!{ x => {
[INFO] [stderr] 536 | |             !x.wrapping_add(1)
[INFO] [stderr] 537 | |         }, $($t)*} }
[INFO] [stderr] 538 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]     --> iter.rs:4321:1
[INFO] [stderr]      |
[INFO] [stderr] 4321 | / macro_rules! step_impl_no_between {
[INFO] [stderr] 4322 | |     ($($t:ty)*) => ($(
[INFO] [stderr] 4323 | |         #[unstable(feature = "step_trait",
[INFO] [stderr] 4324 | |                    reason = "likely to be replaced by finer-grained traits",
[INFO] [stderr] ...    |
[INFO] [stderr] 4336 | |     )*)
[INFO] [stderr] 4337 | | }
[INFO] [stderr]      | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Eq`
[INFO] [stderr]    --> option.rs:145:11
[INFO] [stderr]     |
[INFO] [stderr] 145 | use cmp::{Eq, Ord};
[INFO] [stderr]     |           ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cmp::Eq`
[INFO] [stderr]   --> str/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use cmp::Eq;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `CharExt` is imported redundantly
[INFO] [stderr]    --> fmt/mod.rs:882:13
[INFO] [stderr]     |
[INFO] [stderr] 15  | use prelude::v1::*;
[INFO] [stderr]     |     -------------- the item `CharExt` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 882 |         use char::CharExt;
[INFO] [stderr]     |             ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `CharExt` is imported redundantly
[INFO] [stderr]    --> fmt/mod.rs:993:13
[INFO] [stderr]     |
[INFO] [stderr] 15  | use prelude::v1::*;
[INFO] [stderr]     |     -------------- the item `CharExt` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 993 |         use char::CharExt;
[INFO] [stderr]     |             ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `send`
[INFO] [stderr]   --> marker.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | #[lang = "send"]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^ definition of unknown language item `send`
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `str_eq`
[INFO] [stderr]     --> str/mod.rs:1150:1
[INFO] [stderr]      |
[INFO] [stderr] 1150 | #[lang = "str_eq"]
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^ definition of unknown language item `str_eq`
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `non_zero`
[INFO] [stderr]   --> nonzero.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[lang = "non_zero"]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `non_zero`
[INFO] [stderr] 
[INFO] [stderr] error[E0264]: unknown external lang item: `panic_fmt`
[INFO] [stderr]   --> panicking.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |         fn panic_impl(fmt: fmt::Arguments, file: &'static str, line: u32) -> !;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: requires `freeze` lang_item
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 99 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0264, E0412, E0433, E0522, E0554, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0264`.
[INFO] [stderr] error: Could not compile `core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2cdc8f1367349fae0d89afbb7df1f3730fd8b0dff53d2394a6160a2ee3907b80"`
[INFO] running `"docker" "rm" "-f" "2cdc8f1367349fae0d89afbb7df1f3730fd8b0dff53d2394a6160a2ee3907b80"`
[INFO] [stdout] 2cdc8f1367349fae0d89afbb7df1f3730fd8b0dff53d2394a6160a2ee3907b80