[INFO] fetching crate fibonacci_sequence 0.1.1...
[INFO] checking fibonacci_sequence-0.1.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate fibonacci_sequence 0.1.1 into /workspace/builds/worker-6-tc2/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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fibonacci_sequence 0.1.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fc3b24e6eed8a80cd29ca4730481de3f467fe279126997d88fde37951ebfdb8
[INFO] running `Command { std: "docker" "start" "-a" "8fc3b24e6eed8a80cd29ca4730481de3f467fe279126997d88fde37951ebfdb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fc3b24e6eed8a80cd29ca4730481de3f467fe279126997d88fde37951ebfdb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc3b24e6eed8a80cd29ca4730481de3f467fe279126997d88fde37951ebfdb8", kill_on_drop: false }`
[INFO] [stdout] 8fc3b24e6eed8a80cd29ca4730481de3f467fe279126997d88fde37951ebfdb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3440a1d4ad0210115031fc57d9af541a876c6e587d13f958b76031dfaeb2504
[INFO] running `Command { std: "docker" "start" "-a" "e3440a1d4ad0210115031fc57d9af541a876c6e587d13f958b76031dfaeb2504", kill_on_drop: false }`
[INFO] [stderr]     Checking fibonacci_sequence v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut exchange = FibonacciValue {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut exchange = FibonacciValue {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` 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: 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:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut exchange = FibonacciValue {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` 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)]` 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: value assigned to `exchange` is never read
[INFO] [stdout]   --> src/lib.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut exchange = FibonacciValue {
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` 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)]` 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 0.30s
[INFO] running `Command { std: "docker" "inspect" "e3440a1d4ad0210115031fc57d9af541a876c6e587d13f958b76031dfaeb2504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3440a1d4ad0210115031fc57d9af541a876c6e587d13f958b76031dfaeb2504", kill_on_drop: false }`
[INFO] [stdout] e3440a1d4ad0210115031fc57d9af541a876c6e587d13f958b76031dfaeb2504