[INFO] fetching crate exact-conv 0.2.1...
[INFO] testing exact-conv-0.2.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate exact-conv 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate exact-conv 0.2.1
[INFO] finished tweaking crates.io crate exact-conv 0.2.1
[INFO] tweaked toml for crates.io crate exact-conv 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate exact-conv 0.2.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate exact-conv 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 432c4f5e329971e2365d9717096c7777016b575dda58030bb1cff0cee13c0334
[INFO] running `Command { std: "docker" "start" "-a" "432c4f5e329971e2365d9717096c7777016b575dda58030bb1cff0cee13c0334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "432c4f5e329971e2365d9717096c7777016b575dda58030bb1cff0cee13c0334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "432c4f5e329971e2365d9717096c7777016b575dda58030bb1cff0cee13c0334", kill_on_drop: false }`
[INFO] [stdout] 432c4f5e329971e2365d9717096c7777016b575dda58030bb1cff0cee13c0334
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8a0ed4d07397542003f4151a9a0e03e5235d7faafdfdac355397d379516c2e5
[INFO] running `Command { std: "docker" "start" "-a" "f8a0ed4d07397542003f4151a9a0e03e5235d7faafdfdac355397d379516c2e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling exact-conv v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "f8a0ed4d07397542003f4151a9a0e03e5235d7faafdfdac355397d379516c2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8a0ed4d07397542003f4151a9a0e03e5235d7faafdfdac355397d379516c2e5", kill_on_drop: false }`
[INFO] [stdout] f8a0ed4d07397542003f4151a9a0e03e5235d7faafdfdac355397d379516c2e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ab379ba4e8e0c51b6dd32415ef6c904768245dd3ad54468f04eb1fa6369c4cb
[INFO] running `Command { std: "docker" "start" "-a" "4ab379ba4e8e0c51b6dd32415ef6c904768245dd3ad54468f04eb1fa6369c4cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling exact-conv v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `int_bits_const` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/ieee754.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_bits_const)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         f32::BITS,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 36 -         f32::BITS,
[INFO] [stdout] 36 +         <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         f64::BITS,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 46 -         f64::BITS,
[INFO] [stdout] 46 +         <f64 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f64::<impl f64>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     float_to_unsigned_int_limits!(f32 => u8);
[INFO] [stdout]    |     ---------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 11 -             <$F>::BITS,
[INFO] [stdout] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     float_to_unsigned_int_limits!(f32 => u16);
[INFO] [stdout]    |     ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 11 -             <$F>::BITS,
[INFO] [stdout] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     float_to_unsigned_int_limits!(f32 => u32);
[INFO] [stdout]    |     ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 11 -             <$F>::BITS,
[INFO] [stdout] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     float_to_unsigned_int_limits!(f32 => u64);
[INFO] [stdout]    |     ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 11 -             <$F>::BITS,
[INFO] [stdout] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     float_to_unsigned_int_limits!(f32 => u128);
[INFO] [stdout]    |     ------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 11 -             <$F>::BITS,
[INFO] [stdout] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     float_to_signed_int_limits!(f32 => i8);
[INFO] [stdout]    |     -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 25 -             <$F>::BITS,
[INFO] [stdout] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     float_to_signed_int_limits!(f32 => i16);
[INFO] [stdout]    |     --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 25 -             <$F>::BITS,
[INFO] [stdout] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     float_to_signed_int_limits!(f32 => i32);
[INFO] [stdout]    |     --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 25 -             <$F>::BITS,
[INFO] [stdout] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     float_to_signed_int_limits!(f32 => i64);
[INFO] [stdout]    |     --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 25 -             <$F>::BITS,
[INFO] [stdout] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stdout]   --> examples/ieee754.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             <$F>::BITS,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     float_to_signed_int_limits!(f32 => i128);
[INFO] [stdout]    |     ---------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use the fully qualified path to the associated const
[INFO] [stdout]    |
[INFO] [stdout] 25 -             <$F>::BITS,
[INFO] [stdout] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stdout]    |
[INFO] [stdout] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stdout]    |
[INFO] [stdout]  3 + #![feature(float_bits_const)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "4ab379ba4e8e0c51b6dd32415ef6c904768245dd3ad54468f04eb1fa6369c4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ab379ba4e8e0c51b6dd32415ef6c904768245dd3ad54468f04eb1fa6369c4cb", kill_on_drop: false }`
[INFO] [stdout] 4ab379ba4e8e0c51b6dd32415ef6c904768245dd3ad54468f04eb1fa6369c4cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7d31d077b97810483644d84c8e45dfcab024e7b9e9d472e7bb37644a5cfff10c
[INFO] running `Command { std: "docker" "start" "-a" "7d31d077b97810483644d84c8e45dfcab024e7b9e9d472e7bb37644a5cfff10c", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `int_bits_const` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> examples/ieee754.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(int_bits_const)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         f32::BITS,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 36 -         f32::BITS,
[INFO] [stderr] 36 +         <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         f64::BITS,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 46 -         f64::BITS,
[INFO] [stderr] 46 +         <f64 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f64::<impl f64>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     float_to_unsigned_int_limits!(f32 => u8);
[INFO] [stderr]    |     ---------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 11 -             <$F>::BITS,
[INFO] [stderr] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |     float_to_unsigned_int_limits!(f32 => u16);
[INFO] [stderr]    |     ----------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 11 -             <$F>::BITS,
[INFO] [stderr] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     float_to_unsigned_int_limits!(f32 => u32);
[INFO] [stderr]    |     ----------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 11 -             <$F>::BITS,
[INFO] [stderr] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 61 |     float_to_unsigned_int_limits!(f32 => u64);
[INFO] [stderr]    |     ----------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 11 -             <$F>::BITS,
[INFO] [stderr] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 62 |     float_to_unsigned_int_limits!(f32 => u128);
[INFO] [stderr]    |     ------------------------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_unsigned_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 11 -             <$F>::BITS,
[INFO] [stderr] 11 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |     float_to_signed_int_limits!(f32 => i8);
[INFO] [stderr]    |     -------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 25 -             <$F>::BITS,
[INFO] [stderr] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 65 |     float_to_signed_int_limits!(f32 => i16);
[INFO] [stderr]    |     --------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 25 -             <$F>::BITS,
[INFO] [stderr] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     float_to_signed_int_limits!(f32 => i32);
[INFO] [stderr]    |     --------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 25 -             <$F>::BITS,
[INFO] [stderr] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 67 |     float_to_signed_int_limits!(f32 => i64);
[INFO] [stderr]    |     --------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 25 -             <$F>::BITS,
[INFO] [stderr] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: an associated constant with this name may be added to the standard library in the future
[INFO] [stderr]   --> examples/ieee754.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             <$F>::BITS,
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 68 |     float_to_signed_int_limits!(f32 => i128);
[INFO] [stderr]    |     ---------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = note: this warning originates in the macro `float_to_signed_int_limits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use the fully qualified path to the associated const
[INFO] [stderr]    |
[INFO] [stderr] 25 -             <$F>::BITS,
[INFO] [stderr] 25 +             <f32 as exact_conv::IEEE754>::BITS,
[INFO] [stderr]    |
[INFO] [stderr] help: add `#![feature(float_bits_const)]` to the crate attributes to enable `core::f32::<impl f32>::BITS`
[INFO] [stderr]    |
[INFO] [stderr]  3 + #![feature(float_bits_const)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `exact-conv` (example "ieee754") generated 13 warnings (run `cargo fix --example "ieee754" -p exact-conv` to apply 12 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/exact_conv-99edaaeb8de0c1bd)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::f32_to_signed_overflow ... ok
[INFO] [stdout] test tests::f64_to_signed_overflow ... ok
[INFO] [stdout] test tests::f64_to_unsigned_overflow ... ok
[INFO] [stdout] test tests::inexact ... ok
[INFO] [stdout] test tests::f64_to_unsigned ... ok
[INFO] [stdout] test tests::f32_to_unsigned ... ok
[INFO] [stdout] test tests::f32_to_signed ... ok
[INFO] [stdout] test tests::f32_to_unsigned_overflow ... ok
[INFO] [stdout] test tests::f64_to_signed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exact_conv
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7d31d077b97810483644d84c8e45dfcab024e7b9e9d472e7bb37644a5cfff10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d31d077b97810483644d84c8e45dfcab024e7b9e9d472e7bb37644a5cfff10c", kill_on_drop: false }`
[INFO] [stdout] 7d31d077b97810483644d84c8e45dfcab024e7b9e9d472e7bb37644a5cfff10c