[INFO] fetching crate cesu8str 0.2.4...
[INFO] checking cesu8str-0.2.4 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate cesu8str 0.2.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate cesu8str 0.2.4 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc1/source/Cargo.toml
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded os_str_bytes v6.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce8d921f5e9e4d5dc5737541cd0d4558fd2b7ce116398ffbaacfd1fb471941a2
[INFO] running `Command { std: "docker" "start" "-a" "ce8d921f5e9e4d5dc5737541cd0d4558fd2b7ce116398ffbaacfd1fb471941a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce8d921f5e9e4d5dc5737541cd0d4558fd2b7ce116398ffbaacfd1fb471941a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce8d921f5e9e4d5dc5737541cd0d4558fd2b7ce116398ffbaacfd1fb471941a2", kill_on_drop: false }`
[INFO] [stdout] ce8d921f5e9e4d5dc5737541cd0d4558fd2b7ce116398ffbaacfd1fb471941a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fca9d5050598a310b6a5bffa2cd060751bd6bedbaf90b6dd973be7d02d3040ee
[INFO] running `Command { std: "docker" "start" "-a" "fca9d5050598a310b6a5bffa2cd060751bd6bedbaf90b6dd973be7d02d3040ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking cesu8str v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]   --> src/ngstr/prims.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::convert::TryInto;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:129:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryInto` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]  --> src/ngstr/cesu8string.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 | use crate::ngstr::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8string.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Mutf8Str` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8string.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::mutf8str::Mutf8Str;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Mutf8Str` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstr.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `c_char` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstr.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ffi::c_char;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `c_char` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `CStr` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstr.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ffi::CStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 5 |
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `CStr` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstring.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstring.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Cow` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]  --> src/ngstr/cross_impls.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |
[INFO] [stdout] 4 | use crate::ngstr::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `Cow` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `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] 
[INFO] [stdout] warning: the item `impl_simple_str_traits` is imported redundantly
[INFO] [stdout]     --> src/ngstr/mod.rs:1408:70
[INFO] [stdout]      |
[INFO] [stdout] 1230 | / macro_rules! impl_simple_str_traits {
[INFO] [stdout] 1231 | |     (base $S:ty, $encname:literal) => {
[INFO] [stdout] 1232 | |         impl fmt::Debug for $S {
[INFO] [stdout] 1233 | |             fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout] ...    |
[INFO] [stdout] 1324 | |     }
[INFO] [stdout] 1325 | | }
[INFO] [stdout]      | |_- the item `impl_simple_str_traits` is already defined here
[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: 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] 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` 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]    --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/eq.rs:13:8
[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_ge(val).any();
[INFO] [stdout]     |                                     ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simd_eq` found for struct `std::simd::Simd` 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]    --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/eq.rs:13:8
[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_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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: cannot perform deref coercion on `ManuallyDrop<cesu8string::Cesu8String>` in constant functions
[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]    = note: attempting to deref into `cesu8string::Cesu8String`
[INFO] [stdout] note: impl defined here, but it is not `const`
[INFO] [stdout]   --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/mem/manually_drop.rs:149:1
[INFO] [stdout]    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]    = help: add `#![feature(effects)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: cannot perform deref coercion on `ManuallyDrop<mutf8string::Mutf8String>` in constant functions
[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]    = note: attempting to deref into `mutf8string::Mutf8String`
[INFO] [stdout] note: impl defined here, but it is not `const`
[INFO] [stdout]   --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/mem/manually_drop.rs:149:1
[INFO] [stdout]    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]    = help: add `#![feature(effects)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: cannot perform deref coercion on `ManuallyDrop<mutf8cstring::Mutf8CString>` in constant functions
[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]    = note: attempting to deref into `mutf8cstring::Mutf8CString`
[INFO] [stdout] note: impl defined here, but it is not `const`
[INFO] [stdout]   --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/mem/manually_drop.rs:149:1
[INFO] [stdout]    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]    = help: add `#![feature(effects)]` to the crate attributes to enable
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0015, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0015`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cesu8str` (lib) due to 7 previous errors; 15 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fca9d5050598a310b6a5bffa2cd060751bd6bedbaf90b6dd973be7d02d3040ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca9d5050598a310b6a5bffa2cd060751bd6bedbaf90b6dd973be7d02d3040ee", kill_on_drop: false }`
[INFO] [stdout] fca9d5050598a310b6a5bffa2cd060751bd6bedbaf90b6dd973be7d02d3040ee
[INFO] checking cesu8str-0.2.4 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate cesu8str 0.2.4 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate cesu8str 0.2.4 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc2/source/Cargo.toml
[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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47097a8aa9e5dd6a21a476beffe13d4e0ce7d4228769ea4fa30616c32d2ee6d4
[INFO] running `Command { std: "docker" "start" "-a" "47097a8aa9e5dd6a21a476beffe13d4e0ce7d4228769ea4fa30616c32d2ee6d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47097a8aa9e5dd6a21a476beffe13d4e0ce7d4228769ea4fa30616c32d2ee6d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47097a8aa9e5dd6a21a476beffe13d4e0ce7d4228769ea4fa30616c32d2ee6d4", kill_on_drop: false }`
[INFO] [stdout] 47097a8aa9e5dd6a21a476beffe13d4e0ce7d4228769ea4fa30616c32d2ee6d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 036f7831913377807ae49d06a87b973d92327fc794076887213257b12fb328b0
[INFO] running `Command { std: "docker" "start" "-a" "036f7831913377807ae49d06a87b973d92327fc794076887213257b12fb328b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking cesu8str v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]   --> src/ngstr/prims.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::convert::TryInto;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:129:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryInto` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]  --> src/ngstr/cesu8string.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 | use crate::ngstr::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8string.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Mutf8Str` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8string.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::mutf8str::Mutf8Str;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Mutf8Str` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstr.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `c_char` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstr.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ffi::c_char;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `c_char` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `CStr` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstr.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ffi::CStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 5 |
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `CStr` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Deref` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstring.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Deref` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]  --> src/ngstr/mutf8cstring.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 | use super::prelude::*;
[INFO] [stdout]   |     ----------------- the item `Cow` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]  --> src/ngstr/cross_impls.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::borrow::Cow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |
[INFO] [stdout] 4 | use crate::ngstr::prelude::*;
[INFO] [stdout]   |     ------------------------ the item `Cow` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `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] 
[INFO] [stdout] warning: the item `impl_simple_str_traits` is imported redundantly
[INFO] [stdout]     --> src/ngstr/mod.rs:1408:70
[INFO] [stdout]      |
[INFO] [stdout] 1230 | / macro_rules! impl_simple_str_traits {
[INFO] [stdout] 1231 | |     (base $S:ty, $encname:literal) => {
[INFO] [stdout] 1232 | |         impl fmt::Debug for $S {
[INFO] [stdout] 1233 | |             fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout] ...    |
[INFO] [stdout] 1324 | |     }
[INFO] [stdout] 1325 | | }
[INFO] [stdout]      | |_- the item `impl_simple_str_traits` is already defined here
[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: 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] 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` 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]    --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/eq.rs:13:8
[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_ge(val).any();
[INFO] [stdout]     |                                     ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `simd_eq` found for struct `std::simd::Simd` 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]    --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/core/src/../../portable-simd/crates/core_simd/src/simd/cmp/eq.rs:13:8
[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_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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: cannot perform deref coercion on `ManuallyDrop<cesu8string::Cesu8String>` in constant functions
[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]    = note: attempting to deref into `cesu8string::Cesu8String`
[INFO] [stdout] note: impl defined here, but it is not `const`
[INFO] [stdout]   --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/core/src/mem/manually_drop.rs:149:1
[INFO] [stdout]    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]    = help: add `#![feature(effects)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: cannot perform deref coercion on `ManuallyDrop<mutf8string::Mutf8String>` in constant functions
[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]    = note: attempting to deref into `mutf8string::Mutf8String`
[INFO] [stdout] note: impl defined here, but it is not `const`
[INFO] [stdout]   --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/core/src/mem/manually_drop.rs:149:1
[INFO] [stdout]    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]    = help: add `#![feature(effects)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: cannot perform deref coercion on `ManuallyDrop<mutf8cstring::Mutf8CString>` in constant functions
[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]    = note: attempting to deref into `mutf8cstring::Mutf8CString`
[INFO] [stdout] note: impl defined here, but it is not `const`
[INFO] [stdout]   --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/core/src/mem/manually_drop.rs:149:1
[INFO] [stdout]    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]    = help: add `#![feature(effects)]` to the crate attributes to enable
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0015, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0015`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cesu8str` (lib) due to 7 previous errors; 15 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "036f7831913377807ae49d06a87b973d92327fc794076887213257b12fb328b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "036f7831913377807ae49d06a87b973d92327fc794076887213257b12fb328b0", kill_on_drop: false }`
[INFO] [stdout] 036f7831913377807ae49d06a87b973d92327fc794076887213257b12fb328b0
