[INFO] fetching crate must 0.2.0...
[INFO] testing must-0.2.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate must 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate must 0.2.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate must 0.2.0
[INFO] finished tweaking crates.io crate must 0.2.0
[INFO] tweaked toml for crates.io crate must 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mutator v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01ecacec4f1878741a635913e1cb366d40cbd838ef989c50f5b5ae01cf0a374c
[INFO] running `Command { std: "docker" "start" "-a" "01ecacec4f1878741a635913e1cb366d40cbd838ef989c50f5b5ae01cf0a374c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01ecacec4f1878741a635913e1cb366d40cbd838ef989c50f5b5ae01cf0a374c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ecacec4f1878741a635913e1cb366d40cbd838ef989c50f5b5ae01cf0a374c", kill_on_drop: false }`
[INFO] [stdout] 01ecacec4f1878741a635913e1cb366d40cbd838ef989c50f5b5ae01cf0a374c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad2d671d15438205ebc3df6f7ea9e83df6867b6c874adfe74f6c4b873b949f0a
[INFO] running `Command { std: "docker" "start" "-a" "ad2d671d15438205ebc3df6f7ea9e83df6867b6c874adfe74f6c4b873b949f0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling mutator v0.1.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling must v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<dyn std::error::Error>),
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "ad2d671d15438205ebc3df6f7ea9e83df6867b6c874adfe74f6c4b873b949f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad2d671d15438205ebc3df6f7ea9e83df6867b6c874adfe74f6c4b873b949f0a", kill_on_drop: false }`
[INFO] [stdout] ad2d671d15438205ebc3df6f7ea9e83df6867b6c874adfe74f6c4b873b949f0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f87015cd567294698316df68d4b5ea4792a1a39ff3429fd5bff2d13b8560a73
[INFO] running `Command { std: "docker" "start" "-a" "7f87015cd567294698316df68d4b5ea4792a1a39ff3429fd5bff2d13b8560a73", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<dyn std::error::Error>),
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling must v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<dyn std::error::Error>),
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.33s
[INFO] running `Command { std: "docker" "inspect" "7f87015cd567294698316df68d4b5ea4792a1a39ff3429fd5bff2d13b8560a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f87015cd567294698316df68d4b5ea4792a1a39ff3429fd5bff2d13b8560a73", kill_on_drop: false }`
[INFO] [stdout] 7f87015cd567294698316df68d4b5ea4792a1a39ff3429fd5bff2d13b8560a73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01027d563debe375052198ab5ce8b00c17fa2b7d8a32f33f8ae73887b198ed75
[INFO] running `Command { std: "docker" "start" "-a" "01027d563debe375052198ab5ce8b00c17fa2b7d8a32f33f8ae73887b198ed75", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]  --> src/matchers/text.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ascii::AsciiExt;
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:58:40
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:76:44
[INFO] [stderr]    |
[INFO] [stderr] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stderr]    |                                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Error(Box<std::error::Error>),
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Error(Box<dyn std::error::Error>),
[INFO] [stderr]    |               +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:77:43
[INFO] [stderr]    |
[INFO] [stderr] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stderr]    |                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:60:11
[INFO] [stderr]    |
[INFO] [stderr] 60 |         if self.is_ascii() {
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:68:11
[INFO] [stderr]    |
[INFO] [stderr] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `must` (lib) generated 7 warnings (run `cargo fix --lib -p must` to apply 1 suggestion)
[INFO] [stderr] warning: `must` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/must-2252f40bb0ca23cb)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test marker::collections::tests::test ... ok
[INFO] [stdout] test matchers::range::test_is_in_range ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/compile.rs (/opt/rustwide/target/debug/deps/compile-1dbb77bbd71d22d1)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test must_be ... ok
[INFO] [stdout] test must_have_len ... ok
[INFO] [stdout] test must_be_in_range ... ok
[INFO] [stderr]      Running tests/failure.rs (/opt/rustwide/target/debug/deps/failure-e8b5e4e789f09a8c)
[INFO] [stdout] test must_be_upper ... ok
[INFO] [stdout] test test_some ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test custom_msg - should panic ... ok
[INFO] [stdout] test test - should panic ... ok
[INFO] [stdout] test test_it - should panic ... ok
[INFO] [stdout] test custom_msg_fmt - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/panic_on_drop.rs (/opt/rustwide/target/debug/deps/panic_on_drop-f11910e0a296f5e4)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests must
[INFO] [stdout] test test_only_once_when_or_called - should panic ... ok
[INFO] [stdout] test test_on_drop - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/lib.rs - (line 12) ... ignored
[INFO] [stdout] test src/lib.rs - (line 22) ... ignored
[INFO] [stdout] test src/lib.rs - (line 36) ... ignored
[INFO] [stdout] test src/lib.rs - (line 5) ... ignored
[INFO] [stdout] test src/marker/range.rs - marker::range::RangeArgument::start (line 16) ... FAILED
[INFO] [stdout] test src/marker/range.rs - marker::range::RangeArgument::end (line 39) ... FAILED
[INFO] [stdout] test src/matchers/collections.rs - matchers::collections::MustHaveLength::must_be_empty (line 32) ... ok
[INFO] [stdout] test src/lazy.rs - lazy (line 9) ... ok
[INFO] [stdout] test src/lib.rs - (line 53) ... ok
[INFO] [stdout] test src/matchers/partial_eq.rs - matchers::partial_eq::MustBeBool::must_be_true (line 54) ... ok
[INFO] [stdout] test src/matchers/option.rs - matchers::option::OptionMust::must_be_some_and (line 14) ... ok
[INFO] [stdout] test src/matchers/collections.rs - matchers::collections::MustHaveLength::must_have_len (line 9) ... ok
[INFO] [stdout] test src/matchers/range.rs - matchers::range::MustBeInRange::must_be_in_range (line 10) ... ok
[INFO] [stdout] test src/matchers/range.rs - matchers::range::MustBeInRange::must_not_be_in_range (line 29) ... ok
[INFO] [stdout] test src/matchers/option.rs - matchers::option::OptionMust::must_be_some_and (line 25) ... ok
[INFO] [stdout] test src/matchers/partial_eq.rs - matchers::partial_eq::PartialEqMust::must_be (line 12) ... ok
[INFO] [stdout] test src/matchers/result.rs - matchers::result::ResultMust::must_be_ok_and (line 29) ... ok
[INFO] [stdout] test src/matchers/result.rs - matchers::result::ResultMust::must_be_ok (line 14) ... ok
[INFO] [stdout] test src/matchers/text.rs - matchers::text::CasedTextMust::must_be_lowercase (line 11) ... ok
[INFO] [stdout] test src/matchers/result.rs - matchers::result::ResultMust::must_be_ok_and (line 41) ... ok
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/matchers/text.rs - matchers::text::CasedTextMust::must_be_uppercase (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/marker/range.rs - marker::range::RangeArgument::start (line 16) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]  --> src/marker/range.rs:20:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate collections;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/marker/range.rs:17:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/marker/range.rs:18:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(collections_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_range` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/marker/range.rs:18:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(collections_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/marker/range.rs:17:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `start` found for struct `RangeTo` in the current scope
[INFO] [stdout]   --> src/marker/range.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | assert_eq!((..10).start(), None);
[INFO] [stdout]    |                   ^^^^^ method not found in `RangeTo<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `start` found for struct `std::ops::Range` in the current scope
[INFO] [stdout]   --> src/marker/range.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | assert_eq!((3..10).start(), Some(&3));
[INFO] [stdout]    |                    ^^^^^-- help: remove the arguments
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    field, not a method
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0554, E0599, E0635.
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/marker/range.rs - marker::range::RangeArgument::end (line 39) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]  --> src/marker/range.rs:43:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate collections;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/marker/range.rs:40:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/marker/range.rs:41:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(collections_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_range` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/marker/range.rs:41:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(collections_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/marker/range.rs:40:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `end` found for struct `RangeFrom` in the current scope
[INFO] [stdout]   --> src/marker/range.rs:48:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | assert_eq!((3..).end(), None);
[INFO] [stdout]    |                  ^^^ method not found in `RangeFrom<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `end` found for struct `std::ops::Range` in the current scope
[INFO] [stdout]   --> src/marker/range.rs:49:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | assert_eq!((3..10).end(), Some(&10));
[INFO] [stdout]    |                    ^^^-- help: remove the arguments
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    field, not a method
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0554, E0599, E0635.
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/marker/range.rs - marker::range::RangeArgument::end (line 39)
[INFO] [stdout]     src/marker/range.rs - marker::range::RangeArgument::start (line 16)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 15 passed; 2 failed; 4 ignored; 0 measured; 0 filtered out; finished in 2.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01027d563debe375052198ab5ce8b00c17fa2b7d8a32f33f8ae73887b198ed75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01027d563debe375052198ab5ce8b00c17fa2b7d8a32f33f8ae73887b198ed75", kill_on_drop: false }`
[INFO] [stdout] 01027d563debe375052198ab5ce8b00c17fa2b7d8a32f33f8ae73887b198ed75
[INFO] testing must-0.2.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate must 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate must 0.2.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate must 0.2.0
[INFO] finished tweaking crates.io crate must 0.2.0
[INFO] tweaked toml for crates.io crate must 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a7977067829e96a130556a0d68bd6dfb120785f9d82135efa984f6aa5c00d2c
[INFO] running `Command { std: "docker" "start" "-a" "5a7977067829e96a130556a0d68bd6dfb120785f9d82135efa984f6aa5c00d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a7977067829e96a130556a0d68bd6dfb120785f9d82135efa984f6aa5c00d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a7977067829e96a130556a0d68bd6dfb120785f9d82135efa984f6aa5c00d2c", kill_on_drop: false }`
[INFO] [stdout] 5a7977067829e96a130556a0d68bd6dfb120785f9d82135efa984f6aa5c00d2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46ae50ce351a72cb6914c66fae8290577ed2c6f91b620ada01451fb25993d6c4
[INFO] running `Command { std: "docker" "start" "-a" "46ae50ce351a72cb6914c66fae8290577ed2c6f91b620ada01451fb25993d6c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling mutator v0.1.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling must v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<dyn std::error::Error>),
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "46ae50ce351a72cb6914c66fae8290577ed2c6f91b620ada01451fb25993d6c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46ae50ce351a72cb6914c66fae8290577ed2c6f91b620ada01451fb25993d6c4", kill_on_drop: false }`
[INFO] [stdout] 46ae50ce351a72cb6914c66fae8290577ed2c6f91b620ada01451fb25993d6c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a97f47ce7fd20e963d17fbfe07763dfadefb261435946b2d6903b0183637652
[INFO] running `Command { std: "docker" "start" "-a" "4a97f47ce7fd20e963d17fbfe07763dfadefb261435946b2d6903b0183637652", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<dyn std::error::Error>),
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling must v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/matchers/text.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:76:44
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<std::error::Error>),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Error(Box<dyn std::error::Error>),
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:77:43
[INFO] [stdout]    |
[INFO] [stdout] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stdout]    |                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if self.is_ascii() {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stdout]   --> src/matchers/text.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.76s
[INFO] running `Command { std: "docker" "inspect" "4a97f47ce7fd20e963d17fbfe07763dfadefb261435946b2d6903b0183637652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a97f47ce7fd20e963d17fbfe07763dfadefb261435946b2d6903b0183637652", kill_on_drop: false }`
[INFO] [stdout] 4a97f47ce7fd20e963d17fbfe07763dfadefb261435946b2d6903b0183637652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b27e49ba6a740e9a56c2d361ad119d5fe1193a78d2d3121877fa9f062d9e799a
[INFO] running `Command { std: "docker" "start" "-a" "b27e49ba6a740e9a56c2d361ad119d5fe1193a78d2d3121877fa9f062d9e799a", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]  --> src/matchers/text.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ascii::AsciiExt;
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:58:40
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub trait MustBeAscii: Sized + Debug + AsciiExt {
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:76:44
[INFO] [stderr]    |
[INFO] [stderr] 76 | impl<V> MustBeAscii for V where V: Debug + AsciiExt {}
[INFO] [stderr]    |                                            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Error(Box<std::error::Error>),
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Error(Box<dyn std::error::Error>),
[INFO] [stderr]    |               +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:77:43
[INFO] [stderr]    |
[INFO] [stderr] 77 |             &Error(ref err) => write!(f, "{}", err.description()),
[INFO] [stderr]    |                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::ascii::AsciiExt::is_ascii`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:60:11
[INFO] [stderr]    |
[INFO] [stderr] 60 |         if self.is_ascii() {
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::ascii::AsciiExt::eq_ignore_ascii_case`: use inherent methods instead
[INFO] [stderr]   --> src/matchers/text.rs:68:11
[INFO] [stderr]    |
[INFO] [stderr] 68 |         if self.eq_ignore_ascii_case(other) {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `must` (lib) generated 7 warnings (run `cargo fix --lib -p must` to apply 1 suggestion)
[INFO] [stderr] warning: `must` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/must-730388622bf5bb9d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test matchers::range::test_is_in_range ... ok
[INFO] [stderr]      Running tests/compile.rs (/opt/rustwide/target/debug/deps/compile-b83478354d3cc933)
[INFO] [stdout] test marker::collections::tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test must_be_in_range ... ok
[INFO] [stdout] test must_be_upper ... ok
[INFO] [stdout] test test_some ... ok
[INFO] [stdout] test must_have_len ... ok
[INFO] [stdout] test must_be ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/failure.rs (/opt/rustwide/target/debug/deps/failure-18630215b00e9c3b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test custom_msg - should panic ... ok
[INFO] [stdout] test custom_msg_fmt - should panic ... ok
[INFO] [stdout] test test_it - should panic ... ok
[INFO] [stdout] test test - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/panic_on_drop.rs (/opt/rustwide/target/debug/deps/panic_on_drop-97c5917ffff6cfde)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_only_once_when_or_called - should panic ... ok
[INFO] [stdout] test test_on_drop - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests must
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/lib.rs - (line 12) ... ignored
[INFO] [stdout] test src/lib.rs - (line 22) ... ignored
[INFO] [stdout] test src/lib.rs - (line 36) ... ignored
[INFO] [stdout] test src/lib.rs - (line 5) ... ignored
[INFO] [stdout] test src/marker/range.rs - marker::range::RangeArgument::start (line 16) ... FAILED
[INFO] [stdout] test src/marker/range.rs - marker::range::RangeArgument::end (line 39) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 53) ... ok
[INFO] [stdout] test src/lazy.rs - lazy (line 9) ... ok
[INFO] [stdout] test src/matchers/partial_eq.rs - matchers::partial_eq::MustBeBool::must_be_true (line 54) ... ok
[INFO] [stdout] test src/matchers/option.rs - matchers::option::OptionMust::must_be_some_and (line 14) ... ok
[INFO] [stdout] test src/matchers/collections.rs - matchers::collections::MustHaveLength::must_have_len (line 9) ... ok
[INFO] [stdout] test src/matchers/range.rs - matchers::range::MustBeInRange::must_be_in_range (line 10) ... ok
[INFO] [stdout] test src/matchers/option.rs - matchers::option::OptionMust::must_be_some_and (line 25) ... ok
[INFO] [stdout] test src/matchers/collections.rs - matchers::collections::MustHaveLength::must_be_empty (line 32) ... ok
[INFO] [stdout] test src/matchers/range.rs - matchers::range::MustBeInRange::must_not_be_in_range (line 29) ... ok
[INFO] [stdout] test src/matchers/partial_eq.rs - matchers::partial_eq::PartialEqMust::must_be (line 12) ... ok
[INFO] [stdout] test src/matchers/text.rs - matchers::text::CasedTextMust::must_be_lowercase (line 11) ... ok
[INFO] [stdout] test src/matchers/result.rs - matchers::result::ResultMust::must_be_ok_and (line 41) ... ok
[INFO] [stdout] test src/matchers/result.rs - matchers::result::ResultMust::must_be_ok (line 14) ... ok
[INFO] [stdout] test src/matchers/result.rs - matchers::result::ResultMust::must_be_ok_and (line 29) ... ok
[INFO] [stdout] test src/matchers/text.rs - matchers::text::CasedTextMust::must_be_uppercase (line 32) ... ok
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/marker/range.rs - marker::range::RangeArgument::start (line 16) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]  --> src/marker/range.rs:20:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate collections;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/marker/range.rs:17:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/marker/range.rs:18:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(collections_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_range` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/marker/range.rs:18:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(collections_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/marker/range.rs:17:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `start` found for struct `RangeTo` in the current scope
[INFO] [stdout]   --> src/marker/range.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | assert_eq!((..10).start(), None);
[INFO] [stdout]    |                   ^^^^^ method not found in `RangeTo<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `start` found for struct `std::ops::Range` in the current scope
[INFO] [stdout]   --> src/marker/range.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | assert_eq!((3..10).start(), Some(&3));
[INFO] [stdout]    |                    ^^^^^-- help: remove the arguments
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    field, not a method
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0554, E0599, E0635.
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/marker/range.rs - marker::range::RangeArgument::end (line 39) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]  --> src/marker/range.rs:43:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate collections;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/marker/range.rs:40:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/marker/range.rs:41:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(collections_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_range` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/marker/range.rs:41:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(collections_range)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> src/marker/range.rs:40:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `end` found for struct `RangeFrom` in the current scope
[INFO] [stdout]   --> src/marker/range.rs:48:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | assert_eq!((3..).end(), None);
[INFO] [stdout]    |                  ^^^ method not found in `RangeFrom<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `end` found for struct `std::ops::Range` in the current scope
[INFO] [stdout]   --> src/marker/range.rs:49:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | assert_eq!((3..10).end(), Some(&10));
[INFO] [stdout]    |                    ^^^-- help: remove the arguments
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    field, not a method
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0554, E0599, E0635.
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/marker/range.rs - marker::range::RangeArgument::end (line 39)
[INFO] [stdout]     src/marker/range.rs - marker::range::RangeArgument::start (line 16)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 15 passed; 2 failed; 4 ignored; 0 measured; 0 filtered out; finished in 2.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b27e49ba6a740e9a56c2d361ad119d5fe1193a78d2d3121877fa9f062d9e799a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b27e49ba6a740e9a56c2d361ad119d5fe1193a78d2d3121877fa9f062d9e799a", kill_on_drop: false }`
[INFO] [stdout] b27e49ba6a740e9a56c2d361ad119d5fe1193a78d2d3121877fa9f062d9e799a
