[INFO] fetching crate noctua 0.1.0...
[INFO] testing noctua-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate noctua 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate noctua 0.1.0
[INFO] finished tweaking crates.io crate noctua 0.1.0
[INFO] tweaked toml for crates.io crate noctua 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate noctua 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate noctua 0.1.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dd4ee819fadf0bf2145dd555e2ade905ca54a98e71adea367e77d2d90034936
[INFO] running `Command { std: "docker" "start" "-a" "0dd4ee819fadf0bf2145dd555e2ade905ca54a98e71adea367e77d2d90034936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dd4ee819fadf0bf2145dd555e2ade905ca54a98e71adea367e77d2d90034936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd4ee819fadf0bf2145dd555e2ade905ca54a98e71adea367e77d2d90034936", kill_on_drop: false }`
[INFO] [stdout] 0dd4ee819fadf0bf2145dd555e2ade905ca54a98e71adea367e77d2d90034936
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87588db3d6bfa43352ec670dc14e18f1c472bf6510dc8c22eb1d8d1ecf988cb2
[INFO] running `Command { std: "docker" "start" "-a" "87588db3d6bfa43352ec670dc14e18f1c472bf6510dc8c22eb1d8d1ecf988cb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling noctua v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `cell::UnsafeCell` and `collections::VecDeque`
[INFO] [stdout]  --> src/lib.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::UnsafeCell, collections::VecDeque, fmt, ops, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/lib.rs:201:24
[INFO] [stdout]     |
[INFO] [stdout] 201 |             Atom::Expr(expr, _) => panic!("we never call view on operands"),
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numer`
[INFO] [stdout]    --> src/lib.rs:467:13
[INFO] [stdout]     |
[INFO] [stdout] 467 |         let numer = Expr::from(1);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_numer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `denom`
[INFO] [stdout]    --> src/lib.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 |         let denom = Expr::from(1);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_denom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `oprnds`
[INFO] [stdout]    --> src/lib.rs:584:24
[INFO] [stdout]     |
[INFO] [stdout] 584 |             Expr::Prod(oprnds) => {
[INFO] [stdout]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_oprnds`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MulStrategy` is more private than the item `<impl Expr>::mul_with`
[INFO] [stdout]    --> src/lib.rs:504:5
[INFO] [stdout]     |
[INFO] [stdout] 504 |     pub fn mul_with(&mut self, rhs: Expr, strat: MulStrategy) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `<impl Expr>::mul_with` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `MulStrategy` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/lib.rs:322:1
[INFO] [stdout]     |
[INFO] [stdout] 322 | enum MulStrategy {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExprOperandGuard` is never constructed
[INFO] [stdout]   --> src/lib.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | struct ExprOperandGuard;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None`, `Simple`, `Base`, and `Expand` are never constructed
[INFO] [stdout]    --> src/lib.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 322 | enum MulStrategy {
[INFO] [stdout]     |      ----------- variants in this enum
[INFO] [stdout] 323 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 324 |     Simple,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 325 |     Base,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 326 |     Expand,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "87588db3d6bfa43352ec670dc14e18f1c472bf6510dc8c22eb1d8d1ecf988cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87588db3d6bfa43352ec670dc14e18f1c472bf6510dc8c22eb1d8d1ecf988cb2", kill_on_drop: false }`
[INFO] [stdout] 87588db3d6bfa43352ec670dc14e18f1c472bf6510dc8c22eb1d8d1ecf988cb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7359ad396952068bfe013b3e32f8706685d43c19c2453f6ff41913b09553c6a3
[INFO] running `Command { std: "docker" "start" "-a" "7359ad396952068bfe013b3e32f8706685d43c19c2453f6ff41913b09553c6a3", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `cell::UnsafeCell` and `collections::VecDeque`
[INFO] [stdout]  --> src/lib.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::UnsafeCell, collections::VecDeque, fmt, ops, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/lib.rs:201:24
[INFO] [stdout]     |
[INFO] [stdout] 201 |             Atom::Expr(expr, _) => panic!("we never call view on operands"),
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling noctua v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `numer`
[INFO] [stdout]    --> src/lib.rs:467:13
[INFO] [stdout]     |
[INFO] [stdout] 467 |         let numer = Expr::from(1);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_numer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `denom`
[INFO] [stdout]    --> src/lib.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 |         let denom = Expr::from(1);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_denom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `oprnds`
[INFO] [stdout]    --> src/lib.rs:584:24
[INFO] [stdout]     |
[INFO] [stdout] 584 |             Expr::Prod(oprnds) => {
[INFO] [stdout]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_oprnds`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MulStrategy` is more private than the item `<impl Expr>::mul_with`
[INFO] [stdout]    --> src/lib.rs:504:5
[INFO] [stdout]     |
[INFO] [stdout] 504 |     pub fn mul_with(&mut self, rhs: Expr, strat: MulStrategy) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `<impl Expr>::mul_with` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `MulStrategy` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/lib.rs:322:1
[INFO] [stdout]     |
[INFO] [stdout] 322 | enum MulStrategy {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExprOperandGuard` is never constructed
[INFO] [stdout]   --> src/lib.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | struct ExprOperandGuard;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None`, `Simple`, `Base`, and `Expand` are never constructed
[INFO] [stdout]    --> src/lib.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 322 | enum MulStrategy {
[INFO] [stdout]     |      ----------- variants in this enum
[INFO] [stdout] 323 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 324 |     Simple,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 325 |     Base,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 326 |     Expand,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::UnsafeCell` and `collections::VecDeque`
[INFO] [stdout]  --> src/lib.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::UnsafeCell, collections::VecDeque, fmt, ops, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/lib.rs:201:24
[INFO] [stdout]     |
[INFO] [stdout] 201 |             Atom::Expr(expr, _) => panic!("we never call view on operands"),
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `numer`
[INFO] [stdout]    --> src/lib.rs:467:13
[INFO] [stdout]     |
[INFO] [stdout] 467 |         let numer = Expr::from(1);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_numer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `denom`
[INFO] [stdout]    --> src/lib.rs:468:13
[INFO] [stdout]     |
[INFO] [stdout] 468 |         let denom = Expr::from(1);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_denom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `oprnds`
[INFO] [stdout]    --> src/lib.rs:584:24
[INFO] [stdout]     |
[INFO] [stdout] 584 |             Expr::Prod(oprnds) => {
[INFO] [stdout]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_oprnds`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MulStrategy` is more private than the item `<impl Expr>::mul_with`
[INFO] [stdout]    --> src/lib.rs:504:5
[INFO] [stdout]     |
[INFO] [stdout] 504 |     pub fn mul_with(&mut self, rhs: Expr, strat: MulStrategy) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `<impl Expr>::mul_with` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `MulStrategy` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/lib.rs:322:1
[INFO] [stdout]     |
[INFO] [stdout] 322 | enum MulStrategy {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExprOperandGuard` is never constructed
[INFO] [stdout]   --> src/lib.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | struct ExprOperandGuard;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None`, `Simple`, `Base`, and `Expand` are never constructed
[INFO] [stdout]    --> src/lib.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 322 | enum MulStrategy {
[INFO] [stdout]     |      ----------- variants in this enum
[INFO] [stdout] 323 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 324 |     Simple,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 325 |     Base,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 326 |     Expand,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "7359ad396952068bfe013b3e32f8706685d43c19c2453f6ff41913b09553c6a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7359ad396952068bfe013b3e32f8706685d43c19c2453f6ff41913b09553c6a3", kill_on_drop: false }`
[INFO] [stdout] 7359ad396952068bfe013b3e32f8706685d43c19c2453f6ff41913b09553c6a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3252e729b1a872d2c4dddea76bf9319b168db96c84d580290165d4e05f96a039
[INFO] running `Command { std: "docker" "start" "-a" "3252e729b1a872d2c4dddea76bf9319b168db96c84d580290165d4e05f96a039", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `cell::UnsafeCell` and `collections::VecDeque`
[INFO] [stderr]  --> src/lib.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{cell::UnsafeCell, collections::VecDeque, fmt, ops, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]    --> src/lib.rs:201:24
[INFO] [stderr]     |
[INFO] [stderr] 201 |             Atom::Expr(expr, _) => panic!("we never call view on operands"),
[INFO] [stderr]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `numer`
[INFO] [stderr]    --> src/lib.rs:467:13
[INFO] [stderr]     |
[INFO] [stderr] 467 |         let numer = Expr::from(1);
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_numer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `denom`
[INFO] [stderr]    --> src/lib.rs:468:13
[INFO] [stderr]     |
[INFO] [stderr] 468 |         let denom = Expr::from(1);
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_denom`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `oprnds`
[INFO] [stderr]    --> src/lib.rs:584:24
[INFO] [stderr]     |
[INFO] [stderr] 584 |             Expr::Prod(oprnds) => {
[INFO] [stderr]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_oprnds`
[INFO] [stderr] 
[INFO] [stderr] warning: type `MulStrategy` is more private than the item `<impl Expr>::mul_with`
[INFO] [stderr]    --> src/lib.rs:504:5
[INFO] [stderr]     |
[INFO] [stderr] 504 |     pub fn mul_with(&mut self, rhs: Expr, strat: MulStrategy) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `<impl Expr>::mul_with` is reachable at visibility `pub`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `MulStrategy` is only usable at visibility `pub(crate)`
[INFO] [stderr]    --> src/lib.rs:322:1
[INFO] [stderr]     |
[INFO] [stderr] 322 | enum MulStrategy {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ExprOperandGuard` is never constructed
[INFO] [stderr]   --> src/lib.rs:91:8
[INFO] [stderr]    |
[INFO] [stderr] 91 | struct ExprOperandGuard;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `None`, `Simple`, `Base`, and `Expand` are never constructed
[INFO] [stderr]    --> src/lib.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 322 | enum MulStrategy {
[INFO] [stderr]     |      ----------- variants in this enum
[INFO] [stderr] 323 |     None,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 324 |     Simple,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 325 |     Base,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 326 |     Expand,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `noctua` (lib) generated 8 warnings (run `cargo fix --lib -p noctua` to apply 1 suggestion)
[INFO] [stderr] warning: `noctua` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/noctua-b47674b1327dac15)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test flat_deque::test::linear_deque ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests noctua
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Expr::n_ary (line 345) ... ok
[INFO] [stdout] test src/lib.rs - Expr::inline_trivial_compound (line 477) ... ok
[INFO] [stdout] test src/flat_deque.rs - flat_deque::FlatDeque (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3252e729b1a872d2c4dddea76bf9319b168db96c84d580290165d4e05f96a039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3252e729b1a872d2c4dddea76bf9319b168db96c84d580290165d4e05f96a039", kill_on_drop: false }`
[INFO] [stdout] 3252e729b1a872d2c4dddea76bf9319b168db96c84d580290165d4e05f96a039