[INFO] fetching crate fibonacci_sequence 0.1.1...
[INFO] testing fibonacci_sequence-0.1.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate fibonacci_sequence 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate fibonacci_sequence 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fibonacci_sequence 0.1.1
[INFO] tweaked toml for crates.io crate fibonacci_sequence 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fibonacci_sequence 0.1.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fibonacci_sequence 0.1.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3953263f2c89f10e8f39e3c35dbf59556bb0dcc194fc1ac1192f6daceb9ae78d
[INFO] running `Command { std: "docker" "start" "-a" "3953263f2c89f10e8f39e3c35dbf59556bb0dcc194fc1ac1192f6daceb9ae78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3953263f2c89f10e8f39e3c35dbf59556bb0dcc194fc1ac1192f6daceb9ae78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3953263f2c89f10e8f39e3c35dbf59556bb0dcc194fc1ac1192f6daceb9ae78d", kill_on_drop: false }`
[INFO] [stdout] 3953263f2c89f10e8f39e3c35dbf59556bb0dcc194fc1ac1192f6daceb9ae78d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6f3e87c04f32fc64f17944b3f753dcb1e2430252a4602a1278c4167fd20200d
[INFO] running `Command { std: "docker" "start" "-a" "d6f3e87c04f32fc64f17944b3f753dcb1e2430252a4602a1278c4167fd20200d", kill_on_drop: false }`
[INFO] [stderr]    Compiling fibonacci_sequence v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 |           let mut exchange = FibonacciValue {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 25 | |             index: 0,
[INFO] [stdout] 26 | |             fib_value: 1,
[INFO] [stdout] 27 | |         };
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 |           let mut exchange = FibonacciValue {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 25 | |             index: 0,
[INFO] [stdout] 26 | |             fib_value: 1,
[INFO] [stdout] 27 | |         };
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct FibonacciValue {
[INFO] [stdout]   |            -------------- field in this struct
[INFO] [stdout] 2 |     pub index: u8,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Iterator` is never used
[INFO] [stdout]    --> src/lib.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub trait Iterator {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kernel_recursion` is never used
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn kernel_recursion(n: u8) -> FibonacciValue {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `abs` is never used
[INFO] [stdout]   --> src/lib.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn abs(number: i128) -> i128 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `involution` is never used
[INFO] [stdout]   --> src/lib.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn involution(mut number: f64, mut times: i8) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kernel_linear_algebra` is never used
[INFO] [stdout]   --> src/lib.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn kernel_linear_algebra(n: u8) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "d6f3e87c04f32fc64f17944b3f753dcb1e2430252a4602a1278c4167fd20200d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6f3e87c04f32fc64f17944b3f753dcb1e2430252a4602a1278c4167fd20200d", kill_on_drop: false }`
[INFO] [stdout] d6f3e87c04f32fc64f17944b3f753dcb1e2430252a4602a1278c4167fd20200d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9881a80065a6dbf0e8497954d62102e18893fabb40fe76393d76f0faed30210
[INFO] running `Command { std: "docker" "start" "-a" "b9881a80065a6dbf0e8497954d62102e18893fabb40fe76393d76f0faed30210", kill_on_drop: false }`
[INFO] [stderr]    Compiling fibonacci_sequence v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 |           let mut exchange = FibonacciValue {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 25 | |             index: 0,
[INFO] [stdout] 26 | |             fib_value: 1,
[INFO] [stdout] 27 | |         };
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 |           let mut exchange = FibonacciValue {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 25 | |             index: 0,
[INFO] [stdout] 26 | |             fib_value: 1,
[INFO] [stdout] 27 | |         };
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct FibonacciValue {
[INFO] [stdout]   |            -------------- field in this struct
[INFO] [stdout] 2 |     pub index: u8,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Iterator` is never used
[INFO] [stdout]    --> src/lib.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub trait Iterator {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kernel_recursion` is never used
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn kernel_recursion(n: u8) -> FibonacciValue {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `abs` is never used
[INFO] [stdout]   --> src/lib.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn abs(number: i128) -> i128 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `involution` is never used
[INFO] [stdout]   --> src/lib.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn involution(mut number: f64, mut times: i8) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kernel_linear_algebra` is never used
[INFO] [stdout]   --> src/lib.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn kernel_linear_algebra(n: u8) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 |           let mut exchange = FibonacciValue {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 25 | |             index: 0,
[INFO] [stdout] 26 | |             fib_value: 1,
[INFO] [stdout] 27 | |         };
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 |           let mut exchange = FibonacciValue {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 25 | |             index: 0,
[INFO] [stdout] 26 | |             fib_value: 1,
[INFO] [stdout] 27 | |         };
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct FibonacciValue {
[INFO] [stdout]   |            -------------- field in this struct
[INFO] [stdout] 2 |     pub index: u8,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Iterator` is never used
[INFO] [stdout]    --> src/lib.rs:103:11
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub trait Iterator {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kernel_recursion` is never used
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn kernel_recursion(n: u8) -> FibonacciValue {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `abs` is never used
[INFO] [stdout]   --> src/lib.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn abs(number: i128) -> i128 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `involution` is never used
[INFO] [stdout]   --> src/lib.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn involution(mut number: f64, mut times: i8) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kernel_linear_algebra` is never used
[INFO] [stdout]   --> src/lib.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn kernel_linear_algebra(n: u8) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "b9881a80065a6dbf0e8497954d62102e18893fabb40fe76393d76f0faed30210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9881a80065a6dbf0e8497954d62102e18893fabb40fe76393d76f0faed30210", kill_on_drop: false }`
[INFO] [stdout] b9881a80065a6dbf0e8497954d62102e18893fabb40fe76393d76f0faed30210
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b22031078c369265a0b3a0990979a3a41cb1a78c8bd096afd12c80b7def6fe66
[INFO] running `Command { std: "docker" "start" "-a" "b22031078c369265a0b3a0990979a3a41cb1a78c8bd096afd12c80b7def6fe66", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `exchange` is never read
[INFO] [stderr]   --> src/lib.rs:24:28
[INFO] [stderr]    |
[INFO] [stderr] 24 |           let mut exchange = FibonacciValue {
[INFO] [stderr]    |  ____________________________^
[INFO] [stderr] 25 | |             index: 0,
[INFO] [stderr] 26 | |             fib_value: 1,
[INFO] [stderr] 27 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fibonacci_sequence` (lib) generated 1 warning
[INFO] [stderr] warning: found module declaration for lib.rs
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | mod lib;
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: lib.rs is the root of this crate's library target
[INFO] [stderr]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stderr]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `index` is never read
[INFO] [stderr]  --> src/lib.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct FibonacciValue {
[INFO] [stderr]   |            -------------- field in this struct
[INFO] [stderr] 2 |     pub index: u8,
[INFO] [stderr]   |         ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Iterator` is never used
[INFO] [stderr]    --> src/lib.rs:103:11
[INFO] [stderr]     |
[INFO] [stderr] 103 | pub trait Iterator {
[INFO] [stderr]     |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `kernel_recursion` is never used
[INFO] [stderr]   --> src/lib.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn kernel_recursion(n: u8) -> FibonacciValue {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `abs` is never used
[INFO] [stderr]   --> src/lib.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn abs(number: i128) -> i128 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `involution` is never used
[INFO] [stderr]   --> src/lib.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn involution(mut number: f64, mut times: i8) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `kernel_linear_algebra` is never used
[INFO] [stderr]   --> src/lib.rs:95:12
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn kernel_linear_algebra(n: u8) -> f64 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fibonacci_sequence` (bin "fibonacci_sequence" test) generated 8 warnings (1 duplicate)
[INFO] [stderr] warning: `fibonacci_sequence` (bin "fibonacci_sequence") generated 8 warnings (8 duplicates)
[INFO] [stderr] warning: `fibonacci_sequence` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fibonacci_sequence-a8efab3575e6bd30)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fibonacci_sequence-94068d04d3fec9e7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-6ce4091ad1bcdd7c)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::try_add_before_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fibonacci_sequence
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - lib_fibonacci::kernel (line 9) ... ok
[INFO] [stdout] test src/lib.rs - lib_fibonacci::kernel_recursion (line 44) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b22031078c369265a0b3a0990979a3a41cb1a78c8bd096afd12c80b7def6fe66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b22031078c369265a0b3a0990979a3a41cb1a78c8bd096afd12c80b7def6fe66", kill_on_drop: false }`
[INFO] [stdout] b22031078c369265a0b3a0990979a3a41cb1a78c8bd096afd12c80b7def6fe66