[INFO] crate c_str 1.0.8 is already in cache
[INFO] extracting crate c_str 1.0.8 into work/ex/beta-1.38-1/sources/1.37.0/reg/c_str/1.0.8
[INFO] extracting crate c_str 1.0.8 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/c_str/1.0.8
[INFO] validating manifest of c_str-1.0.8 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of c_str-1.0.8 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing c_str-1.0.8
[INFO] finished frobbing c_str-1.0.8
[INFO] frobbed toml for c_str-1.0.8 written to work/ex/beta-1.38-1/sources/1.37.0/reg/c_str/1.0.8/Cargo.toml
[INFO] started frobbing c_str-1.0.8
[INFO] finished frobbing c_str-1.0.8
[INFO] frobbed toml for c_str-1.0.8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/c_str/1.0.8/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing c_str-1.0.8 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/c_str/1.0.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 157ac7181688fcaf8362fc3e16383b14833ca88eb3c0c8fa0c715d6998e2c565
[INFO] running `"docker" "start" "-a" "157ac7181688fcaf8362fc3e16383b14833ca88eb3c0c8fa0c715d6998e2c565"`
[INFO] [stderr] warning: path `/opt/crater/workdir/src/c_str.rs` was erroneously implicitly accepted for library `c_str`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]    Compiling c_str v1.0.8 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `bytes` in `slice`
[INFO] [stderr]    --> src/c_str.rs:278:16
[INFO] [stderr]     |
[INFO] [stderr] 278 |         slice::bytes::copy_memory(&mut buf, copy_.as_mut_slice());
[INFO] [stderr]     |                ^^^^^ could not find `bytes` in `slice`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/c_str.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | #![feature(core, collections, libc, convert)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/c_str.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | extern crate libc;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:273:22
[INFO] [stderr]     |
[INFO] [stderr] 273 |     F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:283:43
[INFO] [stderr]     |
[INFO] [stderr] 283 |             check_for_null(v, buf as *mut libc::c_char);
[INFO] [stderr]     |                                           ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:286:32
[INFO] [stderr]     |
[INFO] [stderr] 286 |         return f(buf as *const libc::c_char)
[INFO] [stderr]     |                                ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:297:39
[INFO] [stderr]     |
[INFO] [stderr] 297 | fn check_for_null(v: &[u8], buf: *mut libc::c_char) {
[INFO] [stderr]     |                                       ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:338:49
[INFO] [stderr]     |
[INFO] [stderr] 338 | pub unsafe fn from_c_multistring<F>(buf: *const libc::c_char,
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:352:35
[INFO] [stderr]     |
[INFO] [stderr] 352 |           && *(curr_ptr as *const libc::c_char) != 0 as libc::c_char {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:352:57
[INFO] [stderr]     |
[INFO] [stderr] 352 |           && *(curr_ptr as *const libc::c_char) != 0 as libc::c_char {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stderr]    --> src/c_str.rs:357:29
[INFO] [stderr]     |
[INFO] [stderr] 357 |             let tmp : u8 = *::std::intrinsics::offset(curr_ptr as *const libc::c_uchar, decal);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^
[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/c_str.rs:357:74
[INFO] [stderr]     |
[INFO] [stderr] 357 |             let tmp : u8 = *::std::intrinsics::offset(curr_ptr as *const libc::c_uchar, decal);
[INFO] [stderr]     |                                                                          ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:54:40
[INFO] [stderr]    |
[INFO] [stderr] 54 |     unsafe fn from_c_str(c_str: *const libc::c_char) -> Self;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:93:26
[INFO] [stderr]    |
[INFO] [stderr] 93 |         F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]    |                          ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:102:26
[INFO] [stderr]     |
[INFO] [stderr] 102 |         F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:122:26
[INFO] [stderr]     |
[INFO] [stderr] 122 |         F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:129:26
[INFO] [stderr]     |
[INFO] [stderr] 129 |         F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:148:26
[INFO] [stderr]     |
[INFO] [stderr] 148 |         F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:155:26
[INFO] [stderr]     |
[INFO] [stderr] 155 |         F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:163:40
[INFO] [stderr]     |
[INFO] [stderr] 163 |     unsafe fn from_c_str(c_str: *const libc::c_char) -> String {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stderr]    --> src/c_str.rs:167:23
[INFO] [stderr]     |
[INFO] [stderr] 167 |             let tmp = ::std::intrinsics::offset(c_str, count);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[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/c_str.rs:185:46
[INFO] [stderr]     |
[INFO] [stderr] 185 |         FromCStr::from_c_str(c_str as *const libc::c_char)
[INFO] [stderr]     |                                              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:191:40
[INFO] [stderr]     |
[INFO] [stderr] 191 |     unsafe fn from_c_str(c_str: *const libc::c_char) -> CString {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'core_intrinsics': intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stderr]    --> src/c_str.rs:195:23
[INFO] [stderr]     |
[INFO] [stderr] 195 |             let tmp = ::std::intrinsics::offset(c_str, count);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[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/c_str.rs:213:46
[INFO] [stderr]     |
[INFO] [stderr] 213 |         FromCStr::from_c_str(c_str as *const libc::c_char)
[INFO] [stderr]     |                                              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:224:50
[INFO] [stderr]     |
[INFO] [stderr] 224 |         check_for_null(self, cs.as_ptr() as *mut libc::c_char);
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:233:26
[INFO] [stderr]     |
[INFO] [stderr] 233 |         F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:239:26
[INFO] [stderr]     |
[INFO] [stderr] 239 |         F: FnOnce(*const libc::c_char) -> T,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:258:26
[INFO] [stderr]     |
[INFO] [stderr] 258 |         F: FnOnce(*const libc::c_char) -> U,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[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/c_str.rs:265:26
[INFO] [stderr]     |
[INFO] [stderr] 265 |         F: FnOnce(*const libc::c_char) -> U,
[INFO] [stderr]     |                          ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_raw_buf` found for type `std::vec::Vec<_>` in the current scope
[INFO] [stderr]    --> src/c_str.rs:177:36
[INFO] [stderr]     |
[INFO] [stderr] 177 |             let v : Vec<u8> = Vec::from_raw_buf(c_str as *const u8, count as usize);
[INFO] [stderr]     |                                    ^^^^^^^^^^^^ function or associated item not found in `std::vec::Vec<_>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stderr]     = note: the following trait defines an item `from_raw_buf`, perhaps you need to implement it:
[INFO] [stderr]             candidate #1: `FromCStr`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_raw_buf` found for type `std::vec::Vec<_>` in the current scope
[INFO] [stderr]    --> src/c_str.rs:205:36
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let v : Vec<u8> = Vec::from_raw_buf(c_str as *const u8, count as usize);
[INFO] [stderr]     |                                    ^^^^^^^^^^^^ function or associated item not found in `std::vec::Vec<_>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stderr]     = note: the following trait defines an item `from_raw_buf`, perhaps you need to implement it:
[INFO] [stderr]             candidate #1: `FromCStr`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 32 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0433, E0554, E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0433`.
[INFO] [stderr] error: Could not compile `c_str`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "157ac7181688fcaf8362fc3e16383b14833ca88eb3c0c8fa0c715d6998e2c565"`
[INFO] running `"docker" "rm" "-f" "157ac7181688fcaf8362fc3e16383b14833ca88eb3c0c8fa0c715d6998e2c565"`
[INFO] [stdout] 157ac7181688fcaf8362fc3e16383b14833ca88eb3c0c8fa0c715d6998e2c565