[INFO] fetching crate cesu8str 0.2.4...
[INFO] testing cesu8str-0.2.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate cesu8str 0.2.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate cesu8str 0.2.4
[INFO] finished tweaking crates.io crate cesu8str 0.2.4
[INFO] tweaked toml for crates.io crate cesu8str 0.2.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cesu8str 0.2.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cesu8str 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded paste v1.0.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fd14ce8e1949f05be34d525937f7767004156623ab751a6766c518f1a5710e8
[INFO] running `Command { std: "docker" "start" "-a" "8fd14ce8e1949f05be34d525937f7767004156623ab751a6766c518f1a5710e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fd14ce8e1949f05be34d525937f7767004156623ab751a6766c518f1a5710e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd14ce8e1949f05be34d525937f7767004156623ab751a6766c518f1a5710e8", kill_on_drop: false }`
[INFO] [stdout] 8fd14ce8e1949f05be34d525937f7767004156623ab751a6766c518f1a5710e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ea7b4b64bf31e7bc949608598a26f2af361d3028d64163ad4e8e902caf421ac
[INFO] running `Command { std: "docker" "start" "-a" "1ea7b4b64bf31e7bc949608598a26f2af361d3028d64163ad4e8e902caf421ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling cesu8str v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `validate_release`
[INFO] [stdout]    --> src/ngstr/prims.rs:549:43
[INFO] [stdout]     |
[INFO] [stdout] 549 |         if cfg!(debug_assertions) || cfg!(validate_release) {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(validate_release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(validate_release)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader` and `BufWriter`
[INFO] [stdout]  --> src/ngstr/stream.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, BufReader, BufWriter};
[INFO] [stdout]   |                     ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `impl_simple_str_traits`
[INFO] [stdout]     --> src/ngstr/mod.rs:1408:70
[INFO] [stdout]      |
[INFO] [stdout] 1408 | pub(crate) use {impl_str_encoding_meths, impl_string_encoding_meths, impl_simple_str_traits};
[INFO] [stdout]      |                                                                      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `validate_release`
[INFO] [stdout]    --> src/lib.rs:186:39
[INFO] [stdout]     |
[INFO] [stdout] 186 |     if cfg!(debug_assertions) || cfg!(validate_release) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(validate_release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(validate_release)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `validate_release`
[INFO] [stdout]    --> src/lib.rs:196:39
[INFO] [stdout]     |
[INFO] [stdout] 196 |     if cfg!(debug_assertions) || cfg!(validate_release) {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(validate_release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(validate_release)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_ptr_read` has been stable since 1.71.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_ptr_read)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `round_char_boundary` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(round_char_boundary)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `const_deref`
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_deref)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simd_eq` found for struct `std::simd::Simd<T, N>` in the current scope
[INFO] [stdout]    --> src/ngstr/prims.rs:156:37
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let utf8_4byte = (chunk & mask).simd_eq(val).any();
[INFO] [stdout]     |                                     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/eq.rs:13:7
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method is available for `std::simd::Simd<u8, LANES>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SimdPartialEq` which provides `simd_eq` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::simd::cmp::SimdPartialEq;
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `simd_ge` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 156 -     let utf8_4byte = (chunk & mask).simd_eq(val).any();
[INFO] [stdout] 156 +     let utf8_4byte = (chunk & mask).simd_ge(val).any();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simd_eq` found for struct `std::simd::Simd<T, N>` in the current scope
[INFO] [stdout]    --> src/ngstr/prims.rs:157:40
[INFO] [stdout]     |
[INFO] [stdout] 157 |     let utf8_nul = ENCODE_NUL && chunk.simd_eq(zero).any();
[INFO] [stdout]     |                                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/eq.rs:13:7
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method is available for `std::simd::Simd<u8, LANES>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SimdPartialEq` which provides `simd_eq` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::simd::cmp::SimdPartialEq;
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `simd_ge` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 157 -     let utf8_nul = ENCODE_NUL && chunk.simd_eq(zero).any();
[INFO] [stdout] 157 +     let utf8_nul = ENCODE_NUL && chunk.simd_ge(zero).any();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/ngstr/stream.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         todo!("figure out how to subtract characters (not code points) from the end of a string");
[INFO] [stdout]     |         ----------------------------------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 117 |
[INFO] [stdout] 118 |         Ok(safe_len)
[INFO] [stdout]     |         ^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `std::ops::Deref` is not yet stable as a const trait
[INFO] [stdout]   --> src/ngstr/cesu8string.rs:33:34
[INFO] [stdout]    |
[INFO] [stdout] 33 |         unsafe { std::ptr::read(&this.inner) }
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(const_convert)]` to the crate attributes to enable
[INFO] [stdout]   --> src/lib.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 + #![feature(const_convert)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `std::ops::Deref` is not yet stable as a const trait
[INFO] [stdout]   --> src/ngstr/mutf8string.rs:34:34
[INFO] [stdout]    |
[INFO] [stdout] 34 |         unsafe { std::ptr::read(&this.inner) }
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(const_convert)]` to the crate attributes to enable
[INFO] [stdout]   --> src/lib.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 + #![feature(const_convert)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `std::ops::Deref` is not yet stable as a const trait
[INFO] [stdout]   --> src/ngstr/mutf8cstring.rs:60:34
[INFO] [stdout]    |
[INFO] [stdout] 60 |         unsafe { std::ptr::read(&this.inner) }
[INFO] [stdout]    |                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(const_convert)]` to the crate attributes to enable
[INFO] [stdout]   --> src/lib.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 + #![feature(const_convert)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unused_utf8_chars`
[INFO] [stdout]    --> src/ngstr/stream.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 |         let unused_utf8_chars = utf8[safe_len..].chars().count();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unused_utf8_chars`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cesu8str` (lib) due to 6 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1ea7b4b64bf31e7bc949608598a26f2af361d3028d64163ad4e8e902caf421ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ea7b4b64bf31e7bc949608598a26f2af361d3028d64163ad4e8e902caf421ac", kill_on_drop: false }`
[INFO] [stdout] 1ea7b4b64bf31e7bc949608598a26f2af361d3028d64163ad4e8e902caf421ac
