[INFO] fetching crate fluid 0.4.1...
[INFO] testing fluid-0.4.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate fluid 0.4.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate fluid 0.4.1 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 fluid 0.4.1
[INFO] finished tweaking crates.io crate fluid 0.4.1
[INFO] tweaked toml for crates.io crate fluid 0.4.1 written to /workspace/builds/worker-2-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 colored v1.9.4
[INFO] [stderr]   Downloaded fluid_attributes v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 76af333e199c894c54ffd9aaf4a0442032f7cf24b5080b1c6a94fa3602affcb3
[INFO] running `Command { std: "docker" "start" "-a" "76af333e199c894c54ffd9aaf4a0442032f7cf24b5080b1c6a94fa3602affcb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76af333e199c894c54ffd9aaf4a0442032f7cf24b5080b1c6a94fa3602affcb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76af333e199c894c54ffd9aaf4a0442032f7cf24b5080b1c6a94fa3602affcb3", kill_on_drop: false }`
[INFO] [stdout] 76af333e199c894c54ffd9aaf4a0442032f7cf24b5080b1c6a94fa3602affcb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c845233b65ea08adafe1d02a211111ffc4c03537b53b19a60622523acdda0fc1
[INFO] running `Command { std: "docker" "start" "-a" "c845233b65ea08adafe1d02a211111ffc4c03537b53b19a60622523acdda0fc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling is-terminal v0.4.10
[INFO] [stderr]    Compiling colored v1.9.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling fluid_attributes v0.4.0
[INFO] [stderr]    Compiling fluid v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `be_an_error::BeAnError`
[INFO] [stdout]   --> src/assertions/result/mod.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub use be_an_error::BeAnError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![deny(unused)]
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `be_ok::BeOk`
[INFO] [stdout]  --> src/assertions/result/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use be_ok::BeOk;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_an_error.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeAnError<O: Debug, E: Debug> {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeAnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_ok.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeOk<O: Debug, E: Debug> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeOk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core/information.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         panic!(FluidPanic(msg))
[INFO] [stdout]    |         ------ ^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: use std::panic::panic_any instead: `std::panic::panic_any`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.21s
[INFO] running `Command { std: "docker" "inspect" "c845233b65ea08adafe1d02a211111ffc4c03537b53b19a60622523acdda0fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c845233b65ea08adafe1d02a211111ffc4c03537b53b19a60622523acdda0fc1", kill_on_drop: false }`
[INFO] [stdout] c845233b65ea08adafe1d02a211111ffc4c03537b53b19a60622523acdda0fc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ff5b581abbe36d6172792143e249d16adef9238d53c45441d5aef0b3baaabb38
[INFO] running `Command { std: "docker" "start" "-a" "ff5b581abbe36d6172792143e249d16adef9238d53c45441d5aef0b3baaabb38", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `be_an_error::BeAnError`
[INFO] [stdout]   --> src/assertions/result/mod.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub use be_an_error::BeAnError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![deny(unused)]
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `be_ok::BeOk`
[INFO] [stdout]  --> src/assertions/result/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use be_ok::BeOk;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_an_error.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeAnError<O: Debug, E: Debug> {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeAnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_ok.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeOk<O: Debug, E: Debug> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeOk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core/information.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         panic!(FluidPanic(msg))
[INFO] [stdout]    |         ------ ^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: use std::panic::panic_any instead: `std::panic::panic_any`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fluid v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `be_an_error::BeAnError`
[INFO] [stdout]   --> src/assertions/result/mod.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub use be_an_error::BeAnError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![deny(unused)]
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `be_ok::BeOk`
[INFO] [stdout]  --> src/assertions/result/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use be_ok::BeOk;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_an_error.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeAnError<O: Debug, E: Debug> {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeAnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_ok.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeOk<O: Debug, E: Debug> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeOk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core/information.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         panic!(FluidPanic(msg))
[INFO] [stdout]    |         ------ ^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: use std::panic::panic_any instead: `std::panic::panic_any`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "ff5b581abbe36d6172792143e249d16adef9238d53c45441d5aef0b3baaabb38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff5b581abbe36d6172792143e249d16adef9238d53c45441d5aef0b3baaabb38", kill_on_drop: false }`
[INFO] [stdout] ff5b581abbe36d6172792143e249d16adef9238d53c45441d5aef0b3baaabb38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] fb41db73cd3ab318509bcc039e9bcfa7f66d91157bdd5f85103fea89b555a200
[INFO] running `Command { std: "docker" "start" "-a" "fb41db73cd3ab318509bcc039e9bcfa7f66d91157bdd5f85103fea89b555a200", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `be_an_error::BeAnError`
[INFO] [stderr]   --> src/assertions/result/mod.rs:4:9
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub use be_an_error::BeAnError;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 | #![deny(unused)]
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `be_ok::BeOk`
[INFO] [stderr]  --> src/assertions/result/mod.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub use be_ok::BeOk;
[INFO] [stderr]   |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `containing_truthness` is never read
[INFO] [stderr]  --> src/assertions/result/be_an_error.rs:9:31
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct BeAnError<O: Debug, E: Debug> {
[INFO] [stderr]   |            --------- field in this struct
[INFO] [stderr] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stderr] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stderr]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `BeAnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: field `containing_truthness` is never read
[INFO] [stderr]  --> src/assertions/result/be_ok.rs:9:31
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct BeOk<O: Debug, E: Debug> {
[INFO] [stderr]   |            ---- field in this struct
[INFO] [stderr] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stderr] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stderr]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `BeOk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/core/information.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |         panic!(FluidPanic(msg))
[INFO] [stderr]    |         ------ ^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: use std::panic::panic_any instead: `std::panic::panic_any`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fluid` (lib) generated 5 warnings (run `cargo fix --lib -p fluid` to apply 3 suggestions)
[INFO] [stderr] warning: `fluid` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fluid-9bc0098540753f90)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test assertions::iterator::tests::slice_yield_assertion ... ok
[INFO] [stdout] test assertions::iterator::tests::option_yield_assertion ... ok
[INFO] [stdout] test tests::chained_negated_test_first_fails - should panic ... ok
[INFO] [stdout] test tests::chained_first_negated_test ... ok
[INFO] [stdout] test assertions::iterator::tests::result_yield_assertion ... ok
[INFO] [stdout] test assertions::collection::be_empty::test::empty - should panic ... ok
[INFO] [stdout] test tests::chained_negated_test_second_fails - should panic ... ok
[INFO] [stdout] test tests::chained_test ... ok
[INFO] [stdout] test tests::chained_test_first_fails - should panic ... ok
[INFO] [stdout] test tests::chained_both_negated_test ... ok
[INFO] [stdout] test tests::chained_second_negated_test ... ok
[INFO] [stdout] test tests::is_even::case_0 ... ok
[INFO] [stdout] test tests::chained_test_second_fails - should panic ... ok
[INFO] [stdout] test tests::is_even::case_4 ... ok
[INFO] [stdout] test tests::is_even::case_2 ... ok
[INFO] [stdout] test tests::simple_negated_test_fails - should panic ... ok
[INFO] [stdout] test tests::simple_test ... ok
[INFO] [stdout] test tests::simple_test_fails - should panic ... ok
[INFO] [stdout] test tests::session::content::case_foo ... FAILED
[INFO] [stdout] test tests::test_with_explanation ... ok
[INFO] [stdout] test tests::session::content::case_bar ... FAILED
[INFO] [stdout] test tests::test_with_explanation_fails - should panic ... ok
[INFO] [stdout] test tests::session::content::case_qux ... FAILED
[INFO] [stdout] test tests::session::theory_test::case_0 ... ok
[INFO] [stdout] test tests::simple_negated_test ... ok
[INFO] [stdout] test tests::session::dummy ... FAILED
[INFO] [stdout] test tests::session::first_test ... ok
[INFO] [stdout] test wiki::theory::test::each_creature_has_a_correct_number_of_faces::case_cerberus_3 ... ok
[INFO] [stdout] test wiki::theory::test::each_creature_has_a_correct_number_of_faces::case_hydra_7 ... ok
[INFO] [stdout] test wiki::theory::test::each_creature_has_a_correct_number_of_faces::case_janus_2 ... ok
[INFO] [stdout] test wiki::theory::test::each_creature_has_a_correct_number_of_faces::case_normal_guy_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::session::content::case_foo stdout ----
[INFO] [stdout] panicked at src/tests/session.rs:47:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- tests::session::content::case_bar stdout ----
[INFO] [stdout] panicked at src/tests/session.rs:47:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- tests::session::content::case_qux stdout ----
[INFO] [stdout] panicked at src/tests/session.rs:47:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- tests::session::dummy stdout ----
[INFO] [stdout] panicked at src/tests/session.rs:47:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::session::content::case_bar
[INFO] [stdout]     tests::session::content::case_foo
[INFO] [stdout]     tests::session::content::case_qux
[INFO] [stdout]     tests::session::dummy
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 27 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "fb41db73cd3ab318509bcc039e9bcfa7f66d91157bdd5f85103fea89b555a200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb41db73cd3ab318509bcc039e9bcfa7f66d91157bdd5f85103fea89b555a200", kill_on_drop: false }`
[INFO] [stdout] fb41db73cd3ab318509bcc039e9bcfa7f66d91157bdd5f85103fea89b555a200
[INFO] testing fluid-0.4.1 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate fluid 0.4.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate fluid 0.4.1 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 fluid 0.4.1
[INFO] finished tweaking crates.io crate fluid 0.4.1
[INFO] tweaked toml for crates.io crate fluid 0.4.1 written to /workspace/builds/worker-2-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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 69b2c696c908d61b81a94cf538acd46d026363245e80b82eb7b9c76c45dc0691
[INFO] running `Command { std: "docker" "start" "-a" "69b2c696c908d61b81a94cf538acd46d026363245e80b82eb7b9c76c45dc0691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69b2c696c908d61b81a94cf538acd46d026363245e80b82eb7b9c76c45dc0691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69b2c696c908d61b81a94cf538acd46d026363245e80b82eb7b9c76c45dc0691", kill_on_drop: false }`
[INFO] [stdout] 69b2c696c908d61b81a94cf538acd46d026363245e80b82eb7b9c76c45dc0691
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a07234c6a707364debe742cd9dad3c0237002f1c13fea5b1ccc60497ad29c093
[INFO] running `Command { std: "docker" "start" "-a" "a07234c6a707364debe742cd9dad3c0237002f1c13fea5b1ccc60497ad29c093", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling is-terminal v0.4.10
[INFO] [stderr]    Compiling colored v1.9.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling fluid_attributes v0.4.0
[INFO] [stderr]    Compiling fluid v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `be_an_error::BeAnError`
[INFO] [stdout]   --> src/assertions/result/mod.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub use be_an_error::BeAnError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![deny(unused)]
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `be_ok::BeOk`
[INFO] [stdout]  --> src/assertions/result/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use be_ok::BeOk;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_an_error.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeAnError<O: Debug, E: Debug> {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeAnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_ok.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeOk<O: Debug, E: Debug> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeOk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core/information.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         panic!(FluidPanic(msg))
[INFO] [stdout]    |         ------ ^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: use std::panic::panic_any instead: `std::panic::panic_any`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "a07234c6a707364debe742cd9dad3c0237002f1c13fea5b1ccc60497ad29c093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07234c6a707364debe742cd9dad3c0237002f1c13fea5b1ccc60497ad29c093", kill_on_drop: false }`
[INFO] [stdout] a07234c6a707364debe742cd9dad3c0237002f1c13fea5b1ccc60497ad29c093
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7206cbd5a170f4225d94e2d5c18a3ef6253b7292aefaa82a7b94140ca5e27bf4
[INFO] running `Command { std: "docker" "start" "-a" "7206cbd5a170f4225d94e2d5c18a3ef6253b7292aefaa82a7b94140ca5e27bf4", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `be_an_error::BeAnError`
[INFO] [stdout]   --> src/assertions/result/mod.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub use be_an_error::BeAnError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![deny(unused)]
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `be_ok::BeOk`
[INFO] [stdout]  --> src/assertions/result/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use be_ok::BeOk;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_an_error.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeAnError<O: Debug, E: Debug> {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeAnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fluid v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_ok.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeOk<O: Debug, E: Debug> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeOk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core/information.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         panic!(FluidPanic(msg))
[INFO] [stdout]    |         ------ ^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: use std::panic::panic_any instead: `std::panic::panic_any`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `be_an_error::BeAnError`
[INFO] [stdout]   --> src/assertions/result/mod.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub use be_an_error::BeAnError;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![deny(unused)]
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `be_ok::BeOk`
[INFO] [stdout]  --> src/assertions/result/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use be_ok::BeOk;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_an_error.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeAnError<O: Debug, E: Debug> {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeAnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `containing_truthness` is never read
[INFO] [stdout]  --> src/assertions/result/be_ok.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct BeOk<O: Debug, E: Debug> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stdout] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BeOk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/core/information.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         panic!(FluidPanic(msg))
[INFO] [stdout]    |         ------ ^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: use std::panic::panic_any instead: `std::panic::panic_any`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "7206cbd5a170f4225d94e2d5c18a3ef6253b7292aefaa82a7b94140ca5e27bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7206cbd5a170f4225d94e2d5c18a3ef6253b7292aefaa82a7b94140ca5e27bf4", kill_on_drop: false }`
[INFO] [stdout] 7206cbd5a170f4225d94e2d5c18a3ef6253b7292aefaa82a7b94140ca5e27bf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ae4e9a4f9bf12e023c7e8d712396086c72c739ef492e4a241a7fdd7bce665dd0
[INFO] running `Command { std: "docker" "start" "-a" "ae4e9a4f9bf12e023c7e8d712396086c72c739ef492e4a241a7fdd7bce665dd0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `be_an_error::BeAnError`
[INFO] [stderr]   --> src/assertions/result/mod.rs:4:9
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub use be_an_error::BeAnError;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 | #![deny(unused)]
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `be_ok::BeOk`
[INFO] [stderr]  --> src/assertions/result/mod.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub use be_ok::BeOk;
[INFO] [stderr]   |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `containing_truthness` is never read
[INFO] [stderr]  --> src/assertions/result/be_an_error.rs:9:31
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct BeAnError<O: Debug, E: Debug> {
[INFO] [stderr]   |            --------- field in this struct
[INFO] [stderr] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stderr] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stderr]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `BeAnError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: field `containing_truthness` is never read
[INFO] [stderr]  --> src/assertions/result/be_ok.rs:9:31
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct BeOk<O: Debug, E: Debug> {
[INFO] [stderr]   |            ---- field in this struct
[INFO] [stderr] 8 |     pub(in crate::assertions) should: ShouldImpl<Result<O, E>>,
[INFO] [stderr] 9 |     pub(in crate::assertions) containing_truthness: bool,
[INFO] [stderr]   |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `BeOk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/core/information.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |         panic!(FluidPanic(msg))
[INFO] [stderr]    |         ------ ^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: use std::panic::panic_any instead: `std::panic::panic_any`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fluid` (lib) generated 5 warnings (run `cargo fix --lib -p fluid` to apply 3 suggestions)
[INFO] [stderr] warning: `fluid` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fluid-d9684763d41799d0)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test assertions::iterator::tests::option_yield_assertion ... ok
[INFO] [stdout] test tests::chained_second_negated_test ... ok
[INFO] [stdout] test tests::chained_both_negated_test ... ok
[INFO] [stdout] test tests::chained_test ... ok
[INFO] [stdout] test tests::chained_first_negated_test ... ok
[INFO] [stdout] test tests::is_even::case_0 ... ok
[INFO] [stdout] test tests::chained_test_first_fails - should panic ... ok
[INFO] [stdout] test tests::is_even::case_4 ... ok
[INFO] [stdout] test tests::session::content::case_bar ... FAILED
[INFO] [stdout] test tests::session::content::case_foo ... FAILED
[INFO] [stdout] test tests::session::content::case_qux ... FAILED
[INFO] [stdout] test tests::session::dummy ... FAILED
[INFO] [stdout] test tests::chained_test_second_fails - should panic ... ok
[INFO] [stdout] test assertions::collection::be_empty::test::empty - should panic ... ok
[INFO] [stdout] test tests::chained_negated_test_first_fails - should panic ... ok
[INFO] [stdout] test assertions::iterator::tests::result_yield_assertion ... ok
[INFO] [stdout] test assertions::iterator::tests::slice_yield_assertion ... ok
[INFO] [stdout] test tests::chained_negated_test_second_fails - should panic ... ok
[INFO] [stdout] test tests::session::first_test ... ok
[INFO] [stdout] test tests::simple_test ... ok
[INFO] [stdout] test tests::is_even::case_2 ... ok
[INFO] [stdout] test tests::simple_test_fails - should panic ... ok
[INFO] [stdout] test tests::test_with_explanation ... ok
[INFO] [stdout] test tests::test_with_explanation_fails - should panic ... ok
[INFO] [stdout] test tests::simple_negated_test_fails - should panic ... ok
[INFO] [stdout] test tests::simple_negated_test ... ok
[INFO] [stdout] test wiki::theory::test::each_creature_has_a_correct_number_of_faces::case_cerberus_3 ... ok
[INFO] [stdout] test tests::session::theory_test::case_0 ... ok
[INFO] [stdout] test wiki::theory::test::each_creature_has_a_correct_number_of_faces::case_janus_2 ... ok
[INFO] [stdout] test wiki::theory::test::each_creature_has_a_correct_number_of_faces::case_hydra_7 ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test wiki::theory::test::each_creature_has_a_correct_number_of_faces::case_normal_guy_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::session::content::case_bar stdout ----
[INFO] [stdout] panicked at src/tests/session.rs:47:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- tests::session::content::case_foo stdout ----
[INFO] [stdout] panicked at src/tests/session.rs:47:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- tests::session::content::case_qux stdout ----
[INFO] [stdout] panicked at src/tests/session.rs:47:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- tests::session::dummy stdout ----
[INFO] [stdout] panicked at src/tests/session.rs:47:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::session::content::case_bar
[INFO] [stdout]     tests::session::content::case_foo
[INFO] [stdout]     tests::session::content::case_qux
[INFO] [stdout]     tests::session::dummy
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 27 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ae4e9a4f9bf12e023c7e8d712396086c72c739ef492e4a241a7fdd7bce665dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae4e9a4f9bf12e023c7e8d712396086c72c739ef492e4a241a7fdd7bce665dd0", kill_on_drop: false }`
[INFO] [stdout] ae4e9a4f9bf12e023c7e8d712396086c72c739ef492e4a241a7fdd7bce665dd0
