[INFO] fetching crate thin_cstr 0.1.1...
[INFO] testing thin_cstr-0.1.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate thin_cstr 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate thin_cstr 0.1.1
[INFO] finished tweaking crates.io crate thin_cstr 0.1.1
[INFO] tweaked toml for crates.io crate thin_cstr 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate thin_cstr 0.1.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9082f91f64ac10af2c33434e4251b5f0386fa98d89bb6b9b4d51ef5196a1d402
[INFO] running `Command { std: "docker" "start" "-a" "9082f91f64ac10af2c33434e4251b5f0386fa98d89bb6b9b4d51ef5196a1d402", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9082f91f64ac10af2c33434e4251b5f0386fa98d89bb6b9b4d51ef5196a1d402", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9082f91f64ac10af2c33434e4251b5f0386fa98d89bb6b9b4d51ef5196a1d402", kill_on_drop: false }`
[INFO] [stdout] 9082f91f64ac10af2c33434e4251b5f0386fa98d89bb6b9b4d51ef5196a1d402
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2a005e1b171ae4b29cd8ae07e1276ed2cf1f910f5779047a9dc5ccfd796ddf4
[INFO] running `Command { std: "docker" "start" "-a" "f2a005e1b171ae4b29cd8ae07e1276ed2cf1f910f5779047a9dc5ccfd796ddf4", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling thin_cstr v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:620:19
[INFO] [stdout]     |
[INFO] [stdout] 620 |     type Target = CStr;
[INFO] [stdout]     |                   ^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `std::ops::Deref::Target`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/deref.rs:144:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:670:6
[INFO] [stdout]     |
[INFO] [stdout] 670 | impl Borrow<CStr> for CString {
[INFO] [stdout]     |      ^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Borrow`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/borrow.rs:158:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:678:5
[INFO] [stdout]     |
[INFO] [stdout] 678 |     fn from(s: &'a CStr) -> Box<CStr> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:677:29
[INFO] [stdout]     |
[INFO] [stdout] 677 | impl<'a> From<&'a CStr> for Box<CStr> {
[INFO] [stdout]     |                             ^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:686:5
[INFO] [stdout]     |
[INFO] [stdout] 686 |     fn from(s: Box<CStr>) -> CString {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:684:6
[INFO] [stdout]     |
[INFO] [stdout] 684 | impl From<Box<CStr>> for CString {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:693:5
[INFO] [stdout]     |
[INFO] [stdout] 693 |     fn from(s: CString) -> Box<CStr> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:691:24
[INFO] [stdout]     |
[INFO] [stdout] 691 | impl From<CString> for Box<CStr> {
[INFO] [stdout]     |                        ^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:699:5
[INFO] [stdout]     |
[INFO] [stdout] 699 |     fn default() -> Box<CStr> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:698:18
[INFO] [stdout]     |
[INFO] [stdout] 698 | impl Default for Box<CStr> {
[INFO] [stdout]     |                  ^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]     --> src/c_str.rs:1145:18
[INFO] [stdout]      |
[INFO] [stdout] 1145 | impl ToOwned for CStr {
[INFO] [stdout]      |                  ^^^^ doesn't have a known size
[INFO] [stdout]      |
[INFO] [stdout]      = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]     --> src/c_str.rs:206:12
[INFO] [stdout]      |
[INFO] [stdout]  206 | pub struct CStr {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] note: required by a bound in `ToOwned`
[INFO] [stdout]     --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/borrow.rs:40:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]     --> src/c_str.rs:1162:19
[INFO] [stdout]      |
[INFO] [stdout] 1162 |     type Output = CStr;
[INFO] [stdout]      |                   ^^^^ doesn't have a known size
[INFO] [stdout]      |
[INFO] [stdout]      = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]     --> src/c_str.rs:206:12
[INFO] [stdout]      |
[INFO] [stdout]  206 | pub struct CStr {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] note: required by a bound in `std::ops::Index::Output`
[INFO] [stdout]     --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/index.rs:63:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:591:38
[INFO] [stdout]     |
[INFO] [stdout] 591 |     pub fn into_boxed_c_str(self) -> Box<CStr> {
[INFO] [stdout]     |                                      ^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:678:29
[INFO] [stdout]     |
[INFO] [stdout] 678 |     fn from(s: &'a CStr) -> Box<CStr> {
[INFO] [stdout]     |                             ^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:686:16
[INFO] [stdout]     |
[INFO] [stdout] 686 |     fn from(s: Box<CStr>) -> CString {
[INFO] [stdout]     |                ^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:693:28
[INFO] [stdout]     |
[INFO] [stdout] 693 |     fn from(s: CString) -> Box<CStr> {
[INFO] [stdout]     |                            ^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:699:21
[INFO] [stdout]     |
[INFO] [stdout] 699 |     fn default() -> Box<CStr> {
[INFO] [stdout]     |                     ^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `Box<c_str::CStr>` cannot be used as the type of `self` without the `arbitrary_self_types` feature
[INFO] [stdout]     --> src/c_str.rs:1110:32
[INFO] [stdout]      |
[INFO] [stdout] 1110 |     pub fn into_c_string(self: Box<CStr>) -> CString {
[INFO] [stdout]      |                                ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #44874 <https://github.com/rust-lang/rust/issues/44874> for more information
[INFO] [stdout]      = help: consider changing to `self`, `&self`, `&mut self`, or a type implementing `Receiver` such as `self: Box<Self>`, `self: Rc<Self>`, or `self: Arc<Self>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:592:18
[INFO] [stdout]     |
[INFO] [stdout] 592 |         unsafe { Box::from_raw(Box::into_raw(self.into_inner()) as *mut CStr) }
[INFO] [stdout]     |                  ^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:592:18
[INFO] [stdout]     |
[INFO] [stdout] 592 |         unsafe { Box::from_raw(Box::into_raw(self.into_inner()) as *mut CStr) }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:666:11
[INFO] [stdout]     |
[INFO] [stdout] 666 |         a.to_owned()
[INFO] [stdout]     |           ^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `to_owned`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/borrow.rs:61:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:680:18
[INFO] [stdout]     |
[INFO] [stdout] 680 |         unsafe { Box::from_raw(Box::into_raw(boxed) as *mut CStr) }
[INFO] [stdout]     |                  ^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:680:18
[INFO] [stdout]     |
[INFO] [stdout] 680 |         unsafe { Box::from_raw(Box::into_raw(boxed) as *mut CStr) }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:687:11
[INFO] [stdout]     |
[INFO] [stdout] 687 |         s.into_c_string()
[INFO] [stdout]     |           ^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:694:11
[INFO] [stdout]     |
[INFO] [stdout] 694 |         s.into_boxed_c_str()
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:701:18
[INFO] [stdout]     |
[INFO] [stdout] 701 |         unsafe { Box::from_raw(Box::into_raw(boxed) as *mut CStr) }
[INFO] [stdout]     |                  ^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]    --> src/c_str.rs:701:18
[INFO] [stdout]     |
[INFO] [stdout] 701 |         unsafe { Box::from_raw(Box::into_raw(boxed) as *mut CStr) }
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]    --> src/c_str.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 | pub struct CStr {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/c_str.rs:776:26
[INFO] [stdout]     |
[INFO] [stdout] 776 |         f.write_str(self.description())?;
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/c_str.rs:811:14
[INFO] [stdout]     |
[INFO] [stdout] 811 |         self.description().fmt(f)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]     --> src/c_str.rs:1113:23
[INFO] [stdout]      |
[INFO] [stdout] 1113 |             let raw = Box::into_raw(self) as *mut u8;
[INFO] [stdout]      |                       ^^^ doesn't have a known size
[INFO] [stdout]      |
[INFO] [stdout]      = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]     --> src/c_str.rs:206:12
[INFO] [stdout]      |
[INFO] [stdout]  206 | pub struct CStr {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] note: required by a bound in `Box`
[INFO] [stdout]     --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:231:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `c_str::CStrRepr` cannot be known
[INFO] [stdout]     --> src/c_str.rs:1157:11
[INFO] [stdout]      |
[INFO] [stdout] 1157 |         s.to_owned()
[INFO] [stdout]      |           ^^^^^^^^ doesn't have a known size
[INFO] [stdout]      |
[INFO] [stdout]      = help: within `c_str::CStr`, the trait `MetaSized` is not implemented for `c_str::CStrRepr`
[INFO] [stdout] note: required because it appears within the type `c_str::CStr`
[INFO] [stdout]     --> src/c_str.rs:206:12
[INFO] [stdout]      |
[INFO] [stdout]  206 | pub struct CStr {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] note: required by a bound in `to_owned`
[INFO] [stdout]     --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/borrow.rs:61:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `thin_cstr` (lib) due to 30 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f2a005e1b171ae4b29cd8ae07e1276ed2cf1f910f5779047a9dc5ccfd796ddf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a005e1b171ae4b29cd8ae07e1276ed2cf1f910f5779047a9dc5ccfd796ddf4", kill_on_drop: false }`
[INFO] [stdout] f2a005e1b171ae4b29cd8ae07e1276ed2cf1f910f5779047a9dc5ccfd796ddf4
