[INFO] fetching crate lib 0.0.2...
[INFO] checking lib-0.0.2 against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] extracting crate lib 0.0.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate lib 0.0.2
[INFO] finished tweaking crates.io crate lib 0.0.2
[INFO] tweaked toml for crates.io crate lib 0.0.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lib 0.0.2 on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lib 0.0.2 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" "+507271bc119683008ec719ecee48814e8ac86c65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac359f1d18a09df69db407b0158316d003bf32d087e87e5bd9c76ef12ccfdd20
[INFO] running `Command { std: "docker" "start" "-a" "ac359f1d18a09df69db407b0158316d003bf32d087e87e5bd9c76ef12ccfdd20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac359f1d18a09df69db407b0158316d003bf32d087e87e5bd9c76ef12ccfdd20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac359f1d18a09df69db407b0158316d003bf32d087e87e5bd9c76ef12ccfdd20", kill_on_drop: false }`
[INFO] [stdout] ac359f1d18a09df69db407b0158316d003bf32d087e87e5bd9c76ef12ccfdd20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34b9357b0212ad3552862d39e969030cf21d58da88f2f292676120542d4e3030
[INFO] running `Command { std: "docker" "start" "-a" "34b9357b0212ad3552862d39e969030cf21d58da88f2f292676120542d4e3030", kill_on_drop: false }`
[INFO] [stderr]     Checking lib v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::process::Output`
[INFO] [stdout]  --> src/math/fraction.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::process::Output;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gcd`
[INFO] [stdout]  --> src/math/fraction.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::math::num_theory::{gcd, gcd_euclid_iterative};
[INFO] [stdout]   |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HasSign` and `Sign`
[INFO] [stdout]  --> src/math/fraction.rs:4:65
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::math::traits::additive::{Abs, AddId, HasPartialSign, HasSign, Sign};
[INFO] [stdout]   |                                                                 ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::datas::ord_wrap::Ordered`
[INFO] [stdout]  --> src/datas/interval_set.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::datas::ord_wrap::Ordered;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/datas/map.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/datas/bound_protect.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::debug_assert`
[INFO] [stdout]  --> src/ntr_lang/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::debug_assert;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::dprintln`
[INFO] [stdout]  --> src/ntr_lang/lang.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::dprintln;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Output`
[INFO] [stdout]  --> src/math/fraction.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::process::Output;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `gcd`
[INFO] [stdout]  --> src/math/fraction.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::math::num_theory::{gcd, gcd_euclid_iterative};
[INFO] [stdout]   |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HasSign` and `Sign`
[INFO] [stdout]  --> src/math/fraction.rs:4:65
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::math::traits::additive::{Abs, AddId, HasPartialSign, HasSign, Sign};
[INFO] [stdout]   |                                                                 ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/datas/map.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/datas/bound_protect.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::debug_assert`
[INFO] [stdout]  --> src/ntr_lang/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::debug_assert;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::dprintln`
[INFO] [stdout]  --> src/ntr_lang/lang.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::dprintln;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/datas/map.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn all(&self) -> Vec<(&K, &V)> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 86 |         BTreeMap::all(self)
[INFO] [stdout]    |         ------------------- recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/math/digits.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |             digits.append((value % max_digit as u64) as u8);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |             let _ = digits.append((value % max_digit as u64) as u8);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]   --> src/math/traits/cmp.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     default fn is_non_cmp_pair(&self, other: &Self) -> bool {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-05-17; consider upgrading it if it is out of date
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]   --> src/math/traits/cmp.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     default fn is_non_cmp_value(&self) -> bool {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-05-17; consider upgrading it if it is out of date
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/datas/map.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn all(&self) -> Vec<(&K, &V)> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 86 |         BTreeMap::all(self)
[INFO] [stdout]    |         ------------------- recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/math/digits.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |             digits.append((value % max_digit as u64) as u8);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |             let _ = digits.append((value % max_digit as u64) as u8);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]   --> src/math/traits/cmp.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     default fn is_non_cmp_pair(&self, other: &Self) -> bool {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-05-17; consider upgrading it if it is out of date
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: specialization is experimental
[INFO] [stdout]   --> src/math/traits/cmp.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     default fn is_non_cmp_value(&self) -> bool {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: add `#![feature(specialization)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2026-05-17; consider upgrading it if it is out of date
[INFO] [stdout]    = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]    = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "34b9357b0212ad3552862d39e969030cf21d58da88f2f292676120542d4e3030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34b9357b0212ad3552862d39e969030cf21d58da88f2f292676120542d4e3030", kill_on_drop: false }`
[INFO] [stdout] 34b9357b0212ad3552862d39e969030cf21d58da88f2f292676120542d4e3030
