[INFO] fetching crate fast-str 1.0.0...
[INFO] testing fast-str-1.0.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate fast-str 1.0.0 into /workspace/builds/worker-2-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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fast-str 1.0.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3
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[INFO] running `Command { std: "docker" "inspect" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
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[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]    Compiling serde_derive v1.0.229
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[INFO] [stderr]    Compiling zerocopy-derive v0.8.63
[INFO] [stderr]    Compiling rusty-fork v0.3.1
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[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 59.04s
[INFO] running `Command { std: "docker" "inspect" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", 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)]` (part of `#[warn(unused)]`) 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 `release` profile [optimized] target(s) in 0.18s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/fast_str-59b27734c928567e)
[INFO] [stderr]    Doc-tests fast_str
[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] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::as_bytes (line 204) ... FAILED
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::rmatches (line 405) ... FAILED
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::matches (line 350) ... FAILED
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::repeat (line 50) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::replace (line 470) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::strip_prefix (line 736) ... FAILED
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_lowercase (line 164) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::rmatch_indices (line 432) ... 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::to_ascii_uppercase (line 73) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_uppercase (line 132) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::replacen (line 501) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_lowercase (line 173) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::replacen (line 511) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::slice (line 218) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::match_indices (line 380) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::strip_suffix (line 755) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::trim_start (line 292) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_lowercase (line 187) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_uppercase (line 123) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::replace (line 460) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::&'bstr (line 927) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::trim (line 260) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::to_uppercase (line 140) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::F (line 896) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::&'b[char;N] (line 807) ... ok
[INFO] [stdout] test src/backend/mod.rs - backend::FastStr::trim_end (line 323) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::[char;N] (line 787) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::char (line 531) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::Pattern (line 70) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern (line 18) ... ok
[INFO] [stdout] test src/pattern/mod.rs - pattern::&'b[char] (line 847) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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] 207 | 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] 208 | 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] 207 + let binding = FastStr::from("bors");
[INFO] [stdout] 208 ~ 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] ---- 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] 408 | 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]    --> /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3993:0
[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] 408 | 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/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2073:4
[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::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] 353 | 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]    --> /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3993:0
[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] 353 | 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/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2073:4
[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] 739 | assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout]     |                                                                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: a struct named `FastStr` exists in another namespace
[INFO] [stdout] note: constructor is not visible here due to private fields
[INFO] [stdout]    --> 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] 739 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 739 + assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr::new()));
[INFO] [stdout]     |
[INFO] [stdout] 739 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 739 + assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr::from_static(_)));
[INFO] [stdout]     |
[INFO] [stdout] 739 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 739 + assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr::from_string(_)));
[INFO] [stdout]     |
[INFO] [stdout] 739 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 739 + 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] 739 - assert_eq!(FastStr::from("foo:bar").strip_prefix("foo:"), Some(FastStr("bar")));
[INFO] [stdout] 739 + 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] 741 | assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout]     |                                                              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: a struct named `FastStr` exists in another namespace
[INFO] [stdout] note: constructor is not visible here due to private fields
[INFO] [stdout]    --> 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] 741 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 741 + assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr::new()));
[INFO] [stdout]     |
[INFO] [stdout] 741 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 741 + assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr::from_static(_)));
[INFO] [stdout]     |
[INFO] [stdout] 741 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 741 + assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr::from_string(_)));
[INFO] [stdout]     |
[INFO] [stdout] 741 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 741 + 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] 741 - assert_eq!(FastStr::from("foofoo").strip_prefix("foo"), Some(FastStr("foo")));
[INFO] [stdout] 741 + 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] 
[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 1.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3", kill_on_drop: false }`
[INFO] [stdout] 6788babd57106ea9ebc193eb1e72abf432b453d42f6f21aade3c4ffb0de2b8b3
