[INFO] updating cached repository fnimick/rust-gzip
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fnimick/rust-gzip
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fnimick/rust-gzip" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fnimick/rust-gzip"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fnimick/rust-gzip'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fnimick/rust-gzip" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fnimick/rust-gzip"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fnimick/rust-gzip'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 72029df6ac95c3452ab3cc2a7d17c20f44d8d57d
[INFO] sha for GitHub repo fnimick/rust-gzip: 72029df6ac95c3452ab3cc2a7d17c20f44d8d57d
[INFO] validating manifest of fnimick/rust-gzip on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fnimick/rust-gzip on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fnimick/rust-gzip
[INFO] finished frobbing fnimick/rust-gzip
[INFO] frobbed toml for fnimick/rust-gzip written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fnimick/rust-gzip/Cargo.toml
[INFO] started frobbing fnimick/rust-gzip
[INFO] finished frobbing fnimick/rust-gzip
[INFO] frobbed toml for fnimick/rust-gzip written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fnimick/rust-gzip/Cargo.toml
[INFO] crate fnimick/rust-gzip already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking fnimick/rust-gzip against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fnimick/rust-gzip:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e4fd11682f4f6a358f43a87eac4807a40f2617e8f8a07744652f3a8923f55fec
[INFO] running `"docker" "start" "-a" "e4fd11682f4f6a358f43a87eac4807a40f2617e8f8a07744652f3a8923f55fec"`
[INFO] [stderr]     Checking rust-gzip v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub macro_rules! bail {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub macro_rules! if_opt {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub macro_rules! try_bail {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub macro_rules! try_opt {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub macro_rules! try_ref_opt {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `unstable`
[INFO] [stderr]  --> src/lib.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![allow(unstable)]
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub macro_rules! bail {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub macro_rules! if_opt {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub macro_rules! try_bail {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub macro_rules! try_opt {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] error: can't qualify macro_rules invocation with `pub`
[INFO] [stderr]   --> src/macros.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub macro_rules! try_ref_opt {
[INFO] [stderr]    | ^^^ help: try exporting the macro: `#[macro_export]`
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `unstable`
[INFO] [stderr]  --> src/lib.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![allow(unstable)]
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `funcs` in `libc`
[INFO] [stderr]   --> src/cvec.rs:19:11
[INFO] [stderr]    |
[INFO] [stderr] 19 | use libc::funcs::c95::stdlib::{malloc, realloc, free};
[INFO] [stderr]    |           ^^^^^ could not find `funcs` in `libc`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `self::core::raw::Slice`
[INFO] [stderr]   --> src/cvec.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use self::core::raw::Slice as RawSlice;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Slice` in `raw`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `self::core::num::Int`
[INFO] [stderr]   --> src/cvec.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use self::core::num::Int;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ no `Int` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `self::core::num::Int`
[INFO] [stderr]   --> src/header.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use self::core::num::Int;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ no `Int` in `num`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute macro `unsafe_destructor` in this scope
[INFO] [stderr]    --> src/cvec.rs:238:3
[INFO] [stderr]     |
[INFO] [stderr] 238 | #[unsafe_destructor]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]    --> src/cvec.rs:269:23
[INFO] [stderr]     |
[INFO] [stderr] 269 | #[derive(Copy, Clone, Show)]
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Show` in `fmt`
[INFO] [stderr]    --> src/cvec.rs:261:14
[INFO] [stderr]     |
[INFO] [stderr] 261 |         fmt::Show::fmt(self.as_slice(), f)
[INFO] [stderr]     |              ^^^^ could not find `Show` in `fmt`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/header.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[derive(PartialEq, Show)]
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/header.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | #[derive(PartialEq, Show)]
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/huffman.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Clone, Show)]
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/huffman.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 | #[derive(Show, PartialEq)]
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/huffman.rs:37:10
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[derive(Show, PartialEq)]
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/gz_reader.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[derive(Show)]
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `malloc` in this scope
[INFO] [stderr]   --> src/cvec.rs:61:28
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let ptr = unsafe { malloc(size.unwrap() as size_t) } as *mut T;
[INFO] [stderr]    |                            ^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 17 | use libc::malloc;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `realloc` in this scope
[INFO] [stderr]    --> src/cvec.rs:114:27
[INFO] [stderr]     |
[INFO] [stderr] 114 |             let new_ptr = realloc(self.ptr as *mut c_void, size as size_t);
[INFO] [stderr]     |                           ^^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 17  | use libc::realloc;
[INFO] [stderr]     |
[INFO] [stderr] 17  | use std::alloc::realloc;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `free` in this scope
[INFO] [stderr]    --> src/cvec.rs:243:22
[INFO] [stderr]     |
[INFO] [stderr] 243 |             unsafe { free(self.ptr as *mut c_void); }
[INFO] [stderr]     |                      ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 17  | use libc::free;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsSlice` in this scope
[INFO] [stderr]    --> src/cvec.rs:248:9
[INFO] [stderr]     |
[INFO] [stderr] 248 | impl<T> AsSlice<T> for CVec<T> {
[INFO] [stderr]     |         ^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Show` in module `fmt`
[INFO] [stderr]    --> src/cvec.rs:259:25
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<T: fmt::Show> fmt::Show for CVec<T> {
[INFO] [stderr]     |                         ^^^^ not found in `fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Show` in module `fmt`
[INFO] [stderr]    --> src/cvec.rs:259:14
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<T: fmt::Show> fmt::Show for CVec<T> {
[INFO] [stderr]     |              ^^^^ not found in `fmt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `free`, `malloc`, `realloc`
[INFO] [stderr]   --> src/cvec.rs:19:32
[INFO] [stderr]    |
[INFO] [stderr] 19 | use libc::funcs::c95::stdlib::{malloc, realloc, free};
[INFO] [stderr]    |                                ^^^^^^  ^^^^^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Buf`, `Iter`
[INFO] [stderr]   --> src/header.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | use cvec::{Iter, Buf};
[INFO] [stderr]    |            ^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/inflate.rs:48:14
[INFO] [stderr]    |
[INFO] [stderr] 48 |     for i in (0 .. 19) {
[INFO] [stderr]    |              ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/huffman.rs:136:17
[INFO] [stderr]     |
[INFO] [stderr] 136 |     for bits in (0 .. bl_count.len()) {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/gz_reader.rs:44:18
[INFO] [stderr]    |
[INFO] [stderr] 44 |         for i in (0 .. count) {
[INFO] [stderr]    |                  ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/gz_reader.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |         for _ in (0 .. count) {
[INFO] [stderr]    |                  ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | extern crate libc;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | use libc::{c_int, c_uchar, c_void};
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:21:19
[INFO] [stderr]    |
[INFO] [stderr] 21 | use libc::{c_int, c_uchar, c_void};
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:44:52
[INFO] [stderr]    |
[INFO] [stderr] 44 |                                           buf_len: c_int,
[INFO] [stderr]    |                                                    ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:45:66
[INFO] [stderr]    |
[INFO] [stderr] 45 |                                           decompressed_len: *mut c_int)
[INFO] [stderr]    |                                                                  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:47:70
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let in_vec = try_bail!(unsafe { CVec::from_raw_buf(buf as *const c_uchar, buf_len as usize)});
[INFO] [stderr]    |                                                                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:51:41
[INFO] [stderr]    |
[INFO] [stderr] 51 |         *decompressed_len = out_size as c_int;
[INFO] [stderr]    |                                         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/cvec.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | extern crate libc;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/cvec.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 | use libc::{c_void, size_t};
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/cvec.rs:61:52
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let ptr = unsafe { malloc(size.unwrap() as size_t) } as *mut T;
[INFO] [stderr]    |                                                    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]    --> src/cvec.rs:114:68
[INFO] [stderr]     |
[INFO] [stderr] 114 |             let new_ptr = realloc(self.ptr as *mut c_void, size as size_t);
[INFO] [stderr]     |                                                                    ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]     = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use libc::c_uint;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:62:23
[INFO] [stderr]    |
[INFO] [stderr] 62 |     buffer.get_wide::<c_uint>(buffer.len() - GZIP_FILESIZE_OFFSET).unwrap() as usize
[INFO] [stderr]    |                       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:66:29
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn get_crc(buffer: &Buf) -> c_uint {
[INFO] [stderr]    |                             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:68:23
[INFO] [stderr]    |
[INFO] [stderr] 68 |     buffer.get_wide::<c_uint>(buffer.len() - GZIP_CRC_OFFSET).unwrap()
[INFO] [stderr]    |                       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:72:33
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn check_crc(buffer: &Buf, crc: c_uint) -> bool {
[INFO] [stderr]    |                                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 40 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0425, E0432, E0433, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `rust-gzip`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0433]: failed to resolve: could not find `funcs` in `libc`
[INFO] [stderr]   --> src/cvec.rs:19:11
[INFO] [stderr]    |
[INFO] [stderr] 19 | use libc::funcs::c95::stdlib::{malloc, realloc, free};
[INFO] [stderr]    |           ^^^^^ could not find `funcs` in `libc`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `self::core::raw::Slice`
[INFO] [stderr]   --> src/cvec.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use self::core::raw::Slice as RawSlice;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Slice` in `raw`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `self::core::num::Int`
[INFO] [stderr]   --> src/cvec.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use self::core::num::Int;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ no `Int` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `self::core::num::Int`
[INFO] [stderr]   --> src/header.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use self::core::num::Int;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ no `Int` in `num`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute macro `unsafe_destructor` in this scope
[INFO] [stderr]    --> src/cvec.rs:238:3
[INFO] [stderr]     |
[INFO] [stderr] 238 | #[unsafe_destructor]
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]    --> src/cvec.rs:269:23
[INFO] [stderr]     |
[INFO] [stderr] 269 | #[derive(Copy, Clone, Show)]
[INFO] [stderr]     |                       ^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Show` in `fmt`
[INFO] [stderr]    --> src/cvec.rs:261:14
[INFO] [stderr]     |
[INFO] [stderr] 261 |         fmt::Show::fmt(self.as_slice(), f)
[INFO] [stderr]     |              ^^^^ could not find `Show` in `fmt`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/header.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[derive(PartialEq, Show)]
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/header.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | #[derive(PartialEq, Show)]
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/huffman.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Clone, Show)]
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/huffman.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 | #[derive(Show, PartialEq)]
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/huffman.rs:37:10
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[derive(Show, PartialEq)]
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Show` in this scope
[INFO] [stderr]   --> src/gz_reader.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[derive(Show)]
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `malloc` in this scope
[INFO] [stderr]   --> src/cvec.rs:61:28
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let ptr = unsafe { malloc(size.unwrap() as size_t) } as *mut T;
[INFO] [stderr]    |                            ^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 17 | use libc::malloc;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `realloc` in this scope
[INFO] [stderr]    --> src/cvec.rs:114:27
[INFO] [stderr]     |
[INFO] [stderr] 114 |             let new_ptr = realloc(self.ptr as *mut c_void, size as size_t);
[INFO] [stderr]     |                           ^^^^^^^ not found in this scope
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 17  | use libc::realloc;
[INFO] [stderr]     |
[INFO] [stderr] 17  | use std::alloc::realloc;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `free` in this scope
[INFO] [stderr]    --> src/cvec.rs:243:22
[INFO] [stderr]     |
[INFO] [stderr] 243 |             unsafe { free(self.ptr as *mut c_void); }
[INFO] [stderr]     |                      ^^^^ not found in this scope
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 17  | use libc::free;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `AsSlice` in this scope
[INFO] [stderr]    --> src/cvec.rs:248:9
[INFO] [stderr]     |
[INFO] [stderr] 248 | impl<T> AsSlice<T> for CVec<T> {
[INFO] [stderr]     |         ^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Show` in module `fmt`
[INFO] [stderr]    --> src/cvec.rs:259:25
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<T: fmt::Show> fmt::Show for CVec<T> {
[INFO] [stderr]     |                         ^^^^ not found in `fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Show` in module `fmt`
[INFO] [stderr]    --> src/cvec.rs:259:14
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<T: fmt::Show> fmt::Show for CVec<T> {
[INFO] [stderr]     |              ^^^^ not found in `fmt`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `free`, `malloc`, `realloc`
[INFO] [stderr]   --> src/cvec.rs:19:32
[INFO] [stderr]    |
[INFO] [stderr] 19 | use libc::funcs::c95::stdlib::{malloc, realloc, free};
[INFO] [stderr]    |                                ^^^^^^  ^^^^^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Buf`, `Iter`
[INFO] [stderr]   --> src/header.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | use cvec::{Iter, Buf};
[INFO] [stderr]    |            ^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/inflate.rs:48:14
[INFO] [stderr]    |
[INFO] [stderr] 48 |     for i in (0 .. 19) {
[INFO] [stderr]    |              ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/huffman.rs:136:17
[INFO] [stderr]     |
[INFO] [stderr] 136 |     for bits in (0 .. bl_count.len()) {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/gz_reader.rs:44:18
[INFO] [stderr]    |
[INFO] [stderr] 44 |         for i in (0 .. count) {
[INFO] [stderr]    |                  ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/gz_reader.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |         for _ in (0 .. count) {
[INFO] [stderr]    |                  ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | extern crate libc;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | use libc::{c_int, c_uchar, c_void};
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:21:19
[INFO] [stderr]    |
[INFO] [stderr] 21 | use libc::{c_int, c_uchar, c_void};
[INFO] [stderr]    |                   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:44:52
[INFO] [stderr]    |
[INFO] [stderr] 44 |                                           buf_len: c_int,
[INFO] [stderr]    |                                                    ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:45:66
[INFO] [stderr]    |
[INFO] [stderr] 45 |                                           decompressed_len: *mut c_int)
[INFO] [stderr]    |                                                                  ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:47:70
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let in_vec = try_bail!(unsafe { CVec::from_raw_buf(buf as *const c_uchar, buf_len as usize)});
[INFO] [stderr]    |                                                                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/lib.rs:51:41
[INFO] [stderr]    |
[INFO] [stderr] 51 |         *decompressed_len = out_size as c_int;
[INFO] [stderr]    |                                         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/cvec.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | extern crate libc;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/cvec.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 | use libc::{c_void, size_t};
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/cvec.rs:61:52
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let ptr = unsafe { malloc(size.unwrap() as size_t) } as *mut T;
[INFO] [stderr]    |                                                    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]    --> src/cvec.rs:114:68
[INFO] [stderr]     |
[INFO] [stderr] 114 |             let new_ptr = realloc(self.ptr as *mut c_void, size as size_t);
[INFO] [stderr]     |                                                                    ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]     = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use libc::c_uint;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:62:23
[INFO] [stderr]    |
[INFO] [stderr] 62 |     buffer.get_wide::<c_uint>(buffer.len() - GZIP_FILESIZE_OFFSET).unwrap() as usize
[INFO] [stderr]    |                       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:66:29
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn get_crc(buffer: &Buf) -> c_uint {
[INFO] [stderr]    |                             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:68:23
[INFO] [stderr]    |
[INFO] [stderr] 68 |     buffer.get_wide::<c_uint>(buffer.len() - GZIP_CRC_OFFSET).unwrap()
[INFO] [stderr]    |                       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/gz.rs:72:33
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn check_crc(buffer: &Buf, crc: c_uint) -> bool {
[INFO] [stderr]    |                                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 40 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0425, E0432, E0433, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `rust-gzip`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e4fd11682f4f6a358f43a87eac4807a40f2617e8f8a07744652f3a8923f55fec"`
[INFO] running `"docker" "rm" "-f" "e4fd11682f4f6a358f43a87eac4807a40f2617e8f8a07744652f3a8923f55fec"`
[INFO] [stdout] e4fd11682f4f6a358f43a87eac4807a40f2617e8f8a07744652f3a8923f55fec