[INFO] fetching crate prime-data 0.1.2...
[INFO] checking prime-data-0.1.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate prime-data 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate prime-data 0.1.2
[INFO] finished tweaking crates.io crate prime-data 0.1.2
[INFO] tweaked toml for crates.io crate prime-data 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate prime-data 0.1.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 351281a24af6890c38dffe39875cc924e5e22e6bdd755601257c1c8893e11e17
[INFO] running `Command { std: "docker" "start" "-a" "351281a24af6890c38dffe39875cc924e5e22e6bdd755601257c1c8893e11e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "351281a24af6890c38dffe39875cc924e5e22e6bdd755601257c1c8893e11e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "351281a24af6890c38dffe39875cc924e5e22e6bdd755601257c1c8893e11e17", kill_on_drop: false }`
[INFO] [stdout] 351281a24af6890c38dffe39875cc924e5e22e6bdd755601257c1c8893e11e17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2079c968bc2d92a03cf0f9be28e35d2015592b17bc2bfd3c3b3cb8fea4bdb9c
[INFO] running `Command { std: "docker" "start" "-a" "b2079c968bc2d92a03cf0f9be28e35d2015592b17bc2bfd3c3b3cb8fea4bdb9c", kill_on_drop: false }`
[INFO] [stderr]     Checking prime-data v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/data/prime_data.rs:209:35
[INFO] [stdout]     |
[INFO] [stdout] 209 |             let upper_bound = end.div_floor(prime);
[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: call with fully qualified syntax `arithmetic::Divisible::div_floor(...)` to keep using the current method
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] help: add `#![feature(int_roundings)]` to the crate attributes to enable `core::num::<impl u64>::div_floor`
[INFO] [stdout]    --> src/lib.rs:103:1
[INFO] [stdout]     |
[INFO] [stdout] 103 + #![feature(int_roundings)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/data/prime_data.rs:703:43
[INFO] [stdout]     |
[INFO] [stdout] 703 |         let data_start = (*range.start()).div_floor(30);
[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: call with fully qualified syntax `arithmetic::Divisible::div_floor(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(int_roundings)]` to the crate attributes to enable `core::num::<impl u64>::div_floor`
[INFO] [stdout]    --> src/lib.rs:103:1
[INFO] [stdout]     |
[INFO] [stdout] 103 + #![feature(int_roundings)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/data/iterators/prime.rs:55:38
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let data_start = range_start.div_floor(30) as usize - original_offset;
[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: call with fully qualified syntax `arithmetic::Divisible::div_floor(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(int_roundings)]` to the crate attributes to enable `core::num::<impl u64>::div_floor`
[INFO] [stdout]   --> src/lib.rs:103:1
[INFO] [stdout]    |
[INFO] [stdout] 103+ #![feature(int_roundings)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/data/prime_data.rs:209:35
[INFO] [stdout]     |
[INFO] [stdout] 209 |             let upper_bound = end.div_floor(prime);
[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: call with fully qualified syntax `arithmetic::Divisible::div_floor(...)` to keep using the current method
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] help: add `#![feature(int_roundings)]` to the crate attributes to enable `core::num::<impl u64>::div_floor`
[INFO] [stdout]    --> src/lib.rs:103:1
[INFO] [stdout]     |
[INFO] [stdout] 103 + #![feature(int_roundings)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/data/prime_data.rs:703:43
[INFO] [stdout]     |
[INFO] [stdout] 703 |         let data_start = (*range.start()).div_floor(30);
[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: call with fully qualified syntax `arithmetic::Divisible::div_floor(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(int_roundings)]` to the crate attributes to enable `core::num::<impl u64>::div_floor`
[INFO] [stdout]    --> src/lib.rs:103:1
[INFO] [stdout]     |
[INFO] [stdout] 103 + #![feature(int_roundings)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/data/iterators/prime.rs:55:38
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let data_start = range_start.div_floor(30) as usize - original_offset;
[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: call with fully qualified syntax `arithmetic::Divisible::div_floor(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(int_roundings)]` to the crate attributes to enable `core::num::<impl u64>::div_floor`
[INFO] [stdout]   --> src/lib.rs:103:1
[INFO] [stdout]    |
[INFO] [stdout] 103+ #![feature(int_roundings)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `log2` is never used
[INFO] [stdout]  --> src/data/utils/arithmetic.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Logarithm: Number {
[INFO] [stdout]   |           --------- method in this trait
[INFO] [stdout] 5 |     fn log2(self) -> Self;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `increment` is never used
[INFO] [stdout]   --> src/data/utils/arithmetic.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub trait Increment: Number {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 43 |     fn increment(self) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `sqrt_ceil` and `is_square` are never used
[INFO] [stdout]   --> src/data/utils/arithmetic.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub trait IntSqrt: Increment {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn sqrt_ceil(self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn is_square(self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `log2` is never used
[INFO] [stdout]  --> src/data/utils/arithmetic.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Logarithm: Number {
[INFO] [stdout]   |           --------- method in this trait
[INFO] [stdout] 5 |     fn log2(self) -> Self;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `increment` is never used
[INFO] [stdout]   --> src/data/utils/arithmetic.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub trait Increment: Number {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 43 |     fn increment(self) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `sqrt_ceil` and `is_square` are never used
[INFO] [stdout]   --> src/data/utils/arithmetic.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub trait IntSqrt: Increment {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn sqrt_ceil(self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn is_square(self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "b2079c968bc2d92a03cf0f9be28e35d2015592b17bc2bfd3c3b3cb8fea4bdb9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2079c968bc2d92a03cf0f9be28e35d2015592b17bc2bfd3c3b3cb8fea4bdb9c", kill_on_drop: false }`
[INFO] [stdout] b2079c968bc2d92a03cf0f9be28e35d2015592b17bc2bfd3c3b3cb8fea4bdb9c