[INFO] crate fraction 0.6.2 is already in cache
[INFO] checking fraction-0.6.2 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate fraction 0.6.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate fraction 0.6.2 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fraction 0.6.2
[INFO] finished tweaking crates.io crate fraction 0.6.2
[INFO] tweaked toml for crates.io crate fraction 0.6.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6780f4829d4c906146a1898851e4802861e4cfaa293e75e3d90e52316e090736
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "6780f4829d4c906146a1898851e4802861e4cfaa293e75e3d90e52316e090736"`
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking fraction v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/division.rs:542:21
[INFO] [stderr]     |
[INFO] [stderr] 542 |     writeable: &mut Write,
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/division.rs:756:36
[INFO] [stderr]     |
[INFO] [stderr] 756 | pub fn write_digit(writeable: &mut Write, digit: u8) -> Result<bool, DivisionError>
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     ExternalError(Box<Error + Send + Sync>)
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fraction/display.rs:192:45
[INFO] [stderr]     |
[INFO] [stderr] 192 | pub fn format_sign(sign: Sign, buffer: &mut fmt::Write, format: &Format) -> fmt::Result {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fraction/display.rs:225:18
[INFO] [stderr]     |
[INFO] [stderr] 225 |     buffer: &mut fmt::Write,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fraction/display.rs:351:20
[INFO] [stderr]     |
[INFO] [stderr] 351 |     V: FnOnce(&mut fmt::Write, &Format) -> Result<usize, fmt::Error>,
[INFO] [stderr]     |                    ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fraction/display.rs:343:18
[INFO] [stderr]     |
[INFO] [stderr] 343 |     buffer: &mut fmt::Write,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:76:33
[INFO] [stderr]    |
[INFO] [stderr] 76 |     static ref _0_BU: BigUint = { BigUint::zero() };
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 |     static ref _1_BU: BigUint = { BigUint::one() };
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:78:34
[INFO] [stderr]    |
[INFO] [stderr] 78 |     static ref _10_BU: BigUint = { BigUint::from(10u8) };
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:79:32
[INFO] [stderr]    |
[INFO] [stderr] 79 |     static ref _0_BI: BigInt = { BigInt::zero() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:80:32
[INFO] [stderr]    |
[INFO] [stderr] 80 |     static ref _1_BI: BigInt = { BigInt::one() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:81:33
[INFO] [stderr]    |
[INFO] [stderr] 81 |     static ref _10_BI: BigInt = { BigInt::from(10i8) };
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/division.rs:542:21
[INFO] [stderr]     |
[INFO] [stderr] 542 |     writeable: &mut Write,
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/division.rs:756:36
[INFO] [stderr]     |
[INFO] [stderr] 756 | pub fn write_digit(writeable: &mut Write, digit: u8) -> Result<bool, DivisionError>
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     ExternalError(Box<Error + Send + Sync>)
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fraction/display.rs:192:45
[INFO] [stderr]     |
[INFO] [stderr] 192 | pub fn format_sign(sign: Sign, buffer: &mut fmt::Write, format: &Format) -> fmt::Result {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fraction/display.rs:225:18
[INFO] [stderr]     |
[INFO] [stderr] 225 |     buffer: &mut fmt::Write,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fraction/display.rs:351:20
[INFO] [stderr]     |
[INFO] [stderr] 351 |     V: FnOnce(&mut fmt::Write, &Format) -> Result<usize, fmt::Error>,
[INFO] [stderr]     |                    ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fraction/display.rs:343:18
[INFO] [stderr]     |
[INFO] [stderr] 343 |     buffer: &mut fmt::Write,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:76:33
[INFO] [stderr]    |
[INFO] [stderr] 76 |     static ref _0_BU: BigUint = { BigUint::zero() };
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 |     static ref _1_BU: BigUint = { BigUint::one() };
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:78:34
[INFO] [stderr]    |
[INFO] [stderr] 78 |     static ref _10_BU: BigUint = { BigUint::from(10u8) };
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:79:32
[INFO] [stderr]    |
[INFO] [stderr] 79 |     static ref _0_BI: BigInt = { BigInt::zero() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:80:32
[INFO] [stderr]    |
[INFO] [stderr] 80 |     static ref _1_BI: BigInt = { BigInt::one() };
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/generic.rs:81:33
[INFO] [stderr]    |
[INFO] [stderr] 81 |     static ref _10_BI: BigInt = { BigInt::from(10i8) };
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/division.rs:1088:21
[INFO] [stderr]      |
[INFO] [stderr] 1088 |                 let mut remainder = divide_to_writeable(&mut string, i.0, i.1, PRECISION, false).unwrap();
[INFO] [stderr]      |                     ----^^^^^^^^^
[INFO] [stderr]      |                     |
[INFO] [stderr]      |                     help: remove this `mut`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.36s
[INFO] running `"docker" "inspect" "6780f4829d4c906146a1898851e4802861e4cfaa293e75e3d90e52316e090736"`
[INFO] running `"docker" "rm" "-f" "6780f4829d4c906146a1898851e4802861e4cfaa293e75e3d90e52316e090736"`
[INFO] [stdout] 6780f4829d4c906146a1898851e4802861e4cfaa293e75e3d90e52316e090736
