[INFO] fetching crate fast-str 1.0.0...
[INFO] testing fast-str-1.0.0 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate fast-str 1.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate fast-str 1.0.0
[INFO] finished tweaking crates.io crate fast-str 1.0.0
[INFO] tweaked toml for crates.io crate fast-str 1.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fast-str 1.0.0 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "2c616fbccd42bcf992a6959f684d7c522d136f20325b917068de5ceb57b3e1b2", kill_on_drop: false }`
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[INFO] [stdout] 89b3fb10c8d33b768a34673aed36a639322acdf03d70faedd39250a2186887a5
[INFO] running `Command { std: "docker" "start" "-a" "89b3fb10c8d33b768a34673aed36a639322acdf03d70faedd39250a2186887a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling fast-str v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `DoubleEndedSearcher` is never used
[INFO] [stdout]    --> src/pattern/mod.rs:340:11
[INFO] [stdout]     |
[INFO] [stdout] 340 | pub trait DoubleEndedSearcher<'a>: ReverseSearcher<'a> {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "89b3fb10c8d33b768a34673aed36a639322acdf03d70faedd39250a2186887a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89b3fb10c8d33b768a34673aed36a639322acdf03d70faedd39250a2186887a5", kill_on_drop: false }`
[INFO] [stdout] 89b3fb10c8d33b768a34673aed36a639322acdf03d70faedd39250a2186887a5
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 624542ad3842ae1e8a3c1153471f02d26e04574a6544e73cca6db7ae60e4e2e1
[INFO] running `Command { std: "docker" "start" "-a" "624542ad3842ae1e8a3c1153471f02d26e04574a6544e73cca6db7ae60e4e2e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling serde v1.0.228
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[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling textwrap v0.16.2
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[INFO] [stderr]    Compiling bit-vec v0.8.0
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[INFO] [stderr]    Compiling rand_core v0.9.3
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[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stdout] warning: trait `DoubleEndedSearcher` is never used
[INFO] [stdout]    --> src/pattern/mod.rs:340:11
[INFO] [stdout]     |
[INFO] [stdout] 340 | pub trait DoubleEndedSearcher<'a>: ReverseSearcher<'a> {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
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[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling proptest v1.8.0
[INFO] [stderr]    Compiling criterion v0.4.0
[INFO] [stderr]    Compiling fast-str v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `DoubleEndedSearcher` is never used
[INFO] [stdout]    --> src/pattern/mod.rs:340:11
[INFO] [stdout]     |
[INFO] [stdout] 340 | pub trait DoubleEndedSearcher<'a>: ReverseSearcher<'a> {}
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "624542ad3842ae1e8a3c1153471f02d26e04574a6544e73cca6db7ae60e4e2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "624542ad3842ae1e8a3c1153471f02d26e04574a6544e73cca6db7ae60e4e2e1", kill_on_drop: false }`
[INFO] [stdout] 624542ad3842ae1e8a3c1153471f02d26e04574a6544e73cca6db7ae60e4e2e1
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] af542e3ca129ffae764db56cf09085ed4a10c03575b940e44148579dc198242a
[INFO] running `Command { std: "docker" "start" "-a" "af542e3ca129ffae764db56cf09085ed4a10c03575b940e44148579dc198242a", kill_on_drop: false }`
[INFO] [stderr] warning: trait `DoubleEndedSearcher` is never used
[INFO] [stderr]    --> src/pattern/mod.rs:340:11
[INFO] [stderr]     |
[INFO] [stderr] 340 | pub trait DoubleEndedSearcher<'a>: ReverseSearcher<'a> {}
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fast-str` (lib) generated 1 warning
[INFO] [stderr] warning: `fast-str` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fast_str-4eb820cdd1172410)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fast_str
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::matches (line 350) ... FAILED
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::strip_prefix (line 736) ... FAILED
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::rmatches (line 405) ... FAILED
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::as_bytes (line 204) ... FAILED
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_lowercase (line 173) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::replace (line 460) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_ascii_uppercase (line 73) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_ascii_lowercase (line 97) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::rmatch_indices (line 432) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::strip_suffix (line 755) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::replacen (line 511) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::replacen (line 501) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::repeat (line 50) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_uppercase (line 132) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::match_indices (line 380) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_lowercase (line 164) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::slice (line 218) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::trim (line 260) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::replace (line 470) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::trim_start (line 292) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::trim_end (line 323) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_uppercase (line 123) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::F (line 896) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_lowercase (line 187) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::char (line 531) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern (line 18) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::&'bstr (line 927) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::[char;N] (line 787) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_uppercase (line 140) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::&'b[char;N] (line 807) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::&'b[char] (line 847) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::Pattern (line 70) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/backend/mod.rs - backend::FastStr::matches (line 350) stdout ----
[INFO] [stdout] error[E0277]: a value of type `Vec<&str>` cannot be built from an iterator over elements of type `FastStr`
[INFO] [stdout]  --> src/backend/mod.rs:353:68
[INFO] [stdout]   |
[INFO] [stdout] 6 | let v: Vec<&str> = FastStr::from("abcXXXabcYYYabc").matches("abc").collect();
[INFO] [stdout]   |                                                                    ^^^^^^^ value of type `Vec<&str>` cannot be built from `std::iter::Iterator<Item=FastStr>`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromIterator<FastStr>` is not implemented for `Vec<&str>`
[INFO] [stdout]           but trait `FromIterator<&str>` is implemented for it
[INFO] [stdout]   = help: for that trait implementation, expected `&str`, found `FastStr`
[INFO] [stdout] note: the method call chain might not have had the expected associated types
[INFO] [stdout]  --> src/backend/mod.rs:353:53
[INFO] [stdout]   |
[INFO] [stdout] 6 | let v: Vec<&str> = FastStr::from("abcXXXabcYYYabc").matches("abc").collect();
[INFO] [stdout]   |                    -------------------------------- ^^^^^^^^^^^^^^ `Iterator::Item` is `FastStr` here
[INFO] [stdout]   |                    |
[INFO] [stdout]   |                    this expression has type `FastStr`
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]  --> /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/iter/traits/iterator.rs:2014:5
[INFO] [stdout] help: consider removing this method call, as the receiver has type `FastStr` and `FastStr: FromIterator<FastStr>` trivially holds
[INFO] [stdout]   |
[INFO] [stdout] 6 - let v: Vec<&str> = FastStr::from("abcXXXabcYYYabc").matches("abc").collect();
[INFO] [stdout] 6 + let v: Vec<&str> = FastStr::from("abcXXXabcYYYabc").collect();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/backend/mod.rs - backend::FastStr::strip_prefix (line 736) stdout ----
[INFO] [stdout] error[E0423]: cannot initialize a tuple struct which contains private fields
[INFO] [stdout]  --> src/backend/mod.rs:739:64
[INFO] [stdout]   |
[INFO] [stdout] 6 | assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout]   |                                                                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: constructor is not visible here due to private fields
[INFO] [stdout]  --> /opt/rustwide/workdir/src/backend/normal.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct FastStr(NormalString);
[INFO] [stdout]   |                    ^^^^^^^^^^^^ private field
[INFO] [stdout] help: you might have meant to use an associated function to build this type
[INFO] [stdout]   |
[INFO] [stdout] 6 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 6 + assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr::new()));
[INFO] [stdout]   |
[INFO] [stdout] 6 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 6 + assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr::from_static(_)));
[INFO] [stdout]   |
[INFO] [stdout] 6 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 6 + assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr::from_string(_)));
[INFO] [stdout]   |
[INFO] [stdout] 6 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 6 + assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr::from_ref(_)));
[INFO] [stdout]   |
[INFO] [stdout] help: consider using the `Default` trait
[INFO] [stdout]   |
[INFO] [stdout] 6 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 6 + assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(<FastStr as std::default::Default>::default()));
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0423]: cannot initialize a tuple struct which contains private fields
[INFO] [stdout]  --> src/backend/mod.rs:741:62
[INFO] [stdout]   |
[INFO] [stdout] 8 | assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout]   |                                                              ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: constructor is not visible here due to private fields
[INFO] [stdout]  --> /opt/rustwide/workdir/src/backend/normal.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct FastStr(NormalString);
[INFO] [stdout]   |                    ^^^^^^^^^^^^ private field
[INFO] [stdout] help: you might have meant to use an associated function to build this type
[INFO] [stdout]   |
[INFO] [stdout] 8 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 8 + assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr::new()));
[INFO] [stdout]   |
[INFO] [stdout] 8 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 8 + assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr::from_static(_)));
[INFO] [stdout]   |
[INFO] [stdout] 8 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 8 + assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr::from_string(_)));
[INFO] [stdout]   |
[INFO] [stdout] 8 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 8 + assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr::from_ref(_)));
[INFO] [stdout]   |
[INFO] [stdout] help: consider using the `Default` trait
[INFO] [stdout]   |
[INFO] [stdout] 8 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 8 + assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(<FastStr as std::default::Default>::default()));
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/backend/mod.rs - backend::FastStr::rmatches (line 405) stdout ----
[INFO] [stdout] error[E0277]: a value of type `Vec<&str>` cannot be built from an iterator over elements of type `FastStr`
[INFO] [stdout]  --> src/backend/mod.rs:408:69
[INFO] [stdout]   |
[INFO] [stdout] 6 | let v: Vec<&str> = FastStr::from("abcXXXabcYYYabc").rmatches("abc").collect();
[INFO] [stdout]   |                                                                     ^^^^^^^ value of type `Vec<&str>` cannot be built from `std::iter::Iterator<Item=FastStr>`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromIterator<FastStr>` is not implemented for `Vec<&str>`
[INFO] [stdout]           but trait `FromIterator<&str>` is implemented for it
[INFO] [stdout]   = help: for that trait implementation, expected `&str`, found `FastStr`
[INFO] [stdout] note: the method call chain might not have had the expected associated types
[INFO] [stdout]  --> src/backend/mod.rs:408:53
[INFO] [stdout]   |
[INFO] [stdout] 6 | let v: Vec<&str> = FastStr::from("abcXXXabcYYYabc").rmatches("abc").collect();
[INFO] [stdout]   |                    -------------------------------- ^^^^^^^^^^^^^^^ `Iterator::Item` is `FastStr` here
[INFO] [stdout]   |                    |
[INFO] [stdout]   |                    this expression has type `FastStr`
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]  --> /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/iter/traits/iterator.rs:2014:5
[INFO] [stdout] help: consider removing this method call, as the receiver has type `FastStr` and `FastStr: FromIterator<FastStr>` trivially holds
[INFO] [stdout]   |
[INFO] [stdout] 6 - let v: Vec<&str> = FastStr::from("abcXXXabcYYYabc").rmatches("abc").collect();
[INFO] [stdout] 6 + let v: Vec<&str> = FastStr::from("abcXXXabcYYYabc").collect();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/backend/mod.rs - backend::FastStr::as_bytes (line 204) stdout ----
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]  --> src/backend/mod.rs:207:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | let bytes = FastStr::from("bors").as_bytes();
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^           - temporary value is freed at the end of this statement
[INFO] [stdout]   |             |
[INFO] [stdout]   |             creates a temporary value which is freed while still in use
[INFO] [stdout] 7 | assert_eq!(b"bors", bytes);
[INFO] [stdout]   | -------------------------- borrow later used here
[INFO] [stdout]   |
[INFO] [stdout] help: consider using a `let` binding to create a longer lived value
[INFO] [stdout]   |
[INFO] [stdout] 6 + let binding = FastStr::from("bors");
[INFO] [stdout] 7 ~ let bytes = binding.as_bytes();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0716`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/backend/mod.rs - backend::FastStr::as_bytes (line 204)
[INFO] [stdout]     src/backend/mod.rs - backend::FastStr::matches (line 350)
[INFO] [stdout]     src/backend/mod.rs - backend::FastStr::rmatches (line 405)
[INFO] [stdout]     src/backend/mod.rs - backend::FastStr::strip_prefix (line 736)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 29 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.43s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "af542e3ca129ffae764db56cf09085ed4a10c03575b940e44148579dc198242a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af542e3ca129ffae764db56cf09085ed4a10c03575b940e44148579dc198242a", kill_on_drop: false }`
[INFO] [stdout] af542e3ca129ffae764db56cf09085ed4a10c03575b940e44148579dc198242a
