[INFO] fetching crate mech-math 0.0.5...
[INFO] testing mech-math-0.0.5 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate mech-math 0.0.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mech-math 0.0.5 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mech-math 0.0.5
[INFO] finished tweaking crates.io crate mech-math 0.0.5
[INFO] tweaked toml for crates.io crate mech-math 0.0.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5b2c5712ffc918eb1f800c8fdc1951a8196891831a82c834139750702fd06b9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e5b2c5712ffc918eb1f800c8fdc1951a8196891831a82c834139750702fd06b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5b2c5712ffc918eb1f800c8fdc1951a8196891831a82c834139750702fd06b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b2c5712ffc918eb1f800c8fdc1951a8196891831a82c834139750702fd06b9", kill_on_drop: false }`
[INFO] [stdout] e5b2c5712ffc918eb1f800c8fdc1951a8196891831a82c834139750702fd06b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c268e609af942a6b026bc08f39ec1ec33c47fa0d82972f919dfd341d951d2b5d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c268e609af942a6b026bc08f39ec1ec33c47fa0d82972f919dfd341d951d2b5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling mech-math v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Interner`, `Transaction`
[INFO] [stdout]  --> src/lib.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mech_core::{Interner, Transaction};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Quantity`, `make_quantity`
[INFO] [stdout]  --> src/lib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use mech_core::{Quantity, ToQuantity, QuantityMath, make_quantity};
[INFO] [stdout]   |                 ^^^^^^^^                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |           0.0 => 0.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 |           90.0 => 1.0,
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |           180.0 => 0.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |           270.0 => -1.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 |           0.0 => 1.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 |           90.0 => 0.0,
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 |           180.0 => -1.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 |           270.0 => 0.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argument`
[INFO] [stdout]   --> src/lib.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let (argument, table_ref) = &input[0];
[INFO] [stdout]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argument`
[INFO] [stdout]   --> src/lib.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |   let (argument, table_ref) = &input[0];
[INFO] [stdout]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |           0.0 => 0.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:13:60
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                            ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:37:60
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                            ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:62:37
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:62:62
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                              ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:79:37
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:79:62
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                              ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.66s
[INFO] running `Command { std: "docker" "inspect" "c268e609af942a6b026bc08f39ec1ec33c47fa0d82972f919dfd341d951d2b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c268e609af942a6b026bc08f39ec1ec33c47fa0d82972f919dfd341d951d2b5d", kill_on_drop: false }`
[INFO] [stdout] c268e609af942a6b026bc08f39ec1ec33c47fa0d82972f919dfd341d951d2b5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2ee09ec6d05335df19cff8ff5de247fbaf57ee313d53d2e11d1fb248ea968c2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a2ee09ec6d05335df19cff8ff5de247fbaf57ee313d53d2e11d1fb248ea968c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling mech-math v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Interner`, `Transaction`
[INFO] [stdout]  --> src/lib.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mech_core::{Interner, Transaction};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Quantity`, `make_quantity`
[INFO] [stdout]  --> src/lib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use mech_core::{Quantity, ToQuantity, QuantityMath, make_quantity};
[INFO] [stdout]   |                 ^^^^^^^^                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |           0.0 => 0.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 |           90.0 => 1.0,
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |           180.0 => 0.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |           270.0 => -1.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 |           0.0 => 1.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 |           90.0 => 0.0,
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 |           180.0 => -1.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 |           270.0 => 0.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argument`
[INFO] [stdout]   --> src/lib.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let (argument, table_ref) = &input[0];
[INFO] [stdout]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argument`
[INFO] [stdout]   --> src/lib.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |   let (argument, table_ref) = &input[0];
[INFO] [stdout]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |           0.0 => 0.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:13:60
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                            ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:37:60
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                            ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:62:37
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:62:62
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                              ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:79:37
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:79:62
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                              ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Interner`, `Transaction`
[INFO] [stdout]  --> src/lib.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mech_core::{Interner, Transaction};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Quantity`, `make_quantity`
[INFO] [stdout]  --> src/lib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use mech_core::{Quantity, ToQuantity, QuantityMath, make_quantity};
[INFO] [stdout]   |                 ^^^^^^^^                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |           0.0 => 0.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 |           90.0 => 1.0,
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |           180.0 => 0.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 |           270.0 => -1.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 |           0.0 => 1.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:48:11
[INFO] [stdout]    |
[INFO] [stdout] 48 |           90.0 => 0.0,
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 |           180.0 => -1.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 |           270.0 => 0.0,
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argument`
[INFO] [stdout]   --> src/lib.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let (argument, table_ref) = &input[0];
[INFO] [stdout]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `argument`
[INFO] [stdout]   --> src/lib.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |   let (argument, table_ref) = &input[0];
[INFO] [stdout]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> src/lib.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |           0.0 => 0.0,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:13:60
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                            ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:37:60
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                            ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:62:37
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:62:62
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                              ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:79:37
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:79:62
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stdout]    |                                                              ^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "a2ee09ec6d05335df19cff8ff5de247fbaf57ee313d53d2e11d1fb248ea968c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ee09ec6d05335df19cff8ff5de247fbaf57ee313d53d2e11d1fb248ea968c2", kill_on_drop: false }`
[INFO] [stdout] a2ee09ec6d05335df19cff8ff5de247fbaf57ee313d53d2e11d1fb248ea968c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5947c7e4946edcdb430c541e3f338d2344a79102f53fc4cdda5d99abca961bdb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5947c7e4946edcdb430c541e3f338d2344a79102f53fc4cdda5d99abca961bdb", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Interner`, `Transaction`
[INFO] [stderr]  --> src/lib.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use mech_core::{Interner, Transaction};
[INFO] [stderr]   |                 ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Quantity`, `make_quantity`
[INFO] [stderr]  --> src/lib.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | use mech_core::{Quantity, ToQuantity, QuantityMath, make_quantity};
[INFO] [stderr]   |                 ^^^^^^^^                            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:23:11
[INFO] [stderr]    |
[INFO] [stderr] 23 |           0.0 => 0.0,
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:24:11
[INFO] [stderr]    |
[INFO] [stderr] 24 |           90.0 => 1.0,
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:25:11
[INFO] [stderr]    |
[INFO] [stderr] 25 |           180.0 => 0.0,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:26:11
[INFO] [stderr]    |
[INFO] [stderr] 26 |           270.0 => -1.0,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:47:11
[INFO] [stderr]    |
[INFO] [stderr] 47 |           0.0 => 1.0,
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:48:11
[INFO] [stderr]    |
[INFO] [stderr] 48 |           90.0 => 0.0,
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:49:11
[INFO] [stderr]    |
[INFO] [stderr] 49 |           180.0 => -1.0,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:50:11
[INFO] [stderr]    |
[INFO] [stderr] 50 |           270.0 => 0.0,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `argument`
[INFO] [stderr]   --> src/lib.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 |   let (argument, table_ref) = &input[0];
[INFO] [stderr]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `argument`
[INFO] [stderr]   --> src/lib.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 |   let (argument, table_ref) = &input[0];
[INFO] [stderr]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:23:11
[INFO] [stderr]    |
[INFO] [stderr] 23 |           0.0 => 0.0,
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:13:35
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:13:60
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                                            ^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:37:35
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:37:60
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                                            ^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:62:37
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:62:62
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                                              ^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:79:37
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:79:62
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                                              ^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Interner`, `Transaction`
[INFO] [stderr]  --> src/lib.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use mech_core::{Interner, Transaction};
[INFO] [stderr]   |                 ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Quantity`, `make_quantity`
[INFO] [stderr]  --> src/lib.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 | use mech_core::{Quantity, ToQuantity, QuantityMath, make_quantity};
[INFO] [stderr]   |                 ^^^^^^^^                            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:23:11
[INFO] [stderr]    |
[INFO] [stderr] 23 |           0.0 => 0.0,
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:24:11
[INFO] [stderr]    |
[INFO] [stderr] 24 |           90.0 => 1.0,
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:25:11
[INFO] [stderr]    |
[INFO] [stderr] 25 |           180.0 => 0.0,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:26:11
[INFO] [stderr]    |
[INFO] [stderr] 26 |           270.0 => -1.0,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:47:11
[INFO] [stderr]    |
[INFO] [stderr] 47 |           0.0 => 1.0,
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:48:11
[INFO] [stderr]    |
[INFO] [stderr] 48 |           90.0 => 0.0,
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:49:11
[INFO] [stderr]    |
[INFO] [stderr] 49 |           180.0 => -1.0,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:50:11
[INFO] [stderr]    |
[INFO] [stderr] 50 |           270.0 => 0.0,
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `argument`
[INFO] [stderr]   --> src/lib.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 |   let (argument, table_ref) = &input[0];
[INFO] [stderr]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `argument`
[INFO] [stderr]   --> src/lib.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 |   let (argument, table_ref) = &input[0];
[INFO] [stderr]    |        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_argument`
[INFO] [stderr] 
[INFO] [stderr] warning: floating-point types cannot be used in patterns
[INFO] [stderr]   --> src/lib.rs:23:11
[INFO] [stderr]    |
[INFO] [stderr] 23 |           0.0 => 0.0,
[INFO] [stderr]    |           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:13:35
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:13:60
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub extern "C" fn math_sin(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                                            ^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:37:35
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:37:60
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub extern "C" fn math_cos(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                                            ^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:62:37
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:62:62
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub extern "C" fn math_round(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                                              ^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `std::vec::Vec<(std::string::String, mech_core::Table)>`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:79:37
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `mech_core::Table`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:79:62
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub extern "C" fn math_floor(input: Vec<(String, Table)>) -> Table {
[INFO] [stderr]    |                                                              ^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stderr]    = note: this struct has unspecified layout
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mech_math-f2c08620cb3b5386
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mech-math
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5947c7e4946edcdb430c541e3f338d2344a79102f53fc4cdda5d99abca961bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5947c7e4946edcdb430c541e3f338d2344a79102f53fc4cdda5d99abca961bdb", kill_on_drop: false }`
[INFO] [stdout] 5947c7e4946edcdb430c541e3f338d2344a79102f53fc4cdda5d99abca961bdb