[INFO] cloning repository https://github.com/notsquirrelcoding/cas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/notsquirrelcoding/cas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotsquirrelcoding%2Fcas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotsquirrelcoding%2Fcas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd4a0793188a937f358dd8c4ef94d0a8e359a966
[INFO] checking notsquirrelcoding/cas against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotsquirrelcoding%2Fcas" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/notsquirrelcoding/cas
[INFO] finished tweaking git repo https://github.com/notsquirrelcoding/cas
[INFO] tweaked toml for git repo https://github.com/notsquirrelcoding/cas written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/notsquirrelcoding/cas on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/notsquirrelcoding/cas 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97f663ceecd903767602343bacffb13cc7e1c9f9eb0394c3843cf64944856361
[INFO] running `Command { std: "docker" "start" "-a" "97f663ceecd903767602343bacffb13cc7e1c9f9eb0394c3843cf64944856361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97f663ceecd903767602343bacffb13cc7e1c9f9eb0394c3843cf64944856361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f663ceecd903767602343bacffb13cc7e1c9f9eb0394c3843cf64944856361", kill_on_drop: false }`
[INFO] [stdout] 97f663ceecd903767602343bacffb13cc7e1c9f9eb0394c3843cf64944856361
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95893bd24493ed7ad8560710adf4d3f7e1e8c49f225c7187548d5699a04021e3
[INFO] running `Command { std: "docker" "start" "-a" "95893bd24493ed7ad8560710adf4d3f7e1e8c49f225c7187548d5699a04021e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v2.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking cas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::prelude`
[INFO] [stdout]  --> src/expr/polynomial.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::prelude;
[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: `collections::VecDeque`
[INFO] [stdout]  --> src/expr/polynomial.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fmt, collections::VecDeque};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JoinType`
[INFO] [stdout]  --> src/main.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 |     join::{Join, JoinType}, Symbol, polynomial::{PolyExpr, poly},
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::prelude`
[INFO] [stdout]  --> src/expr/polynomial.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::prelude;
[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: `crate::expr::base_func::BaseFunc`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::expr::base_func::BaseFunc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::VecDeque`
[INFO] [stdout]  --> src/expr/polynomial.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fmt, collections::VecDeque};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `JoinType`
[INFO] [stdout]  --> src/main.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 |     join::{Join, JoinType}, Symbol, polynomial::{PolyExpr, poly},
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::expr::base_func::BaseFunc`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::expr::base_func::BaseFunc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Form` is never used
[INFO] [stdout]   --> src/main.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum Form {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CAS` is never constructed
[INFO] [stdout]   --> src/main.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct CAS {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `solve` are never used
[INFO] [stdout]   --> src/main.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl CAS {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn new(lhs: Join, rhs: Join, symbol: Symbol) -> CAS {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn solve(&mut self) -> Join {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]  --> src/expr/mod.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Expression {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Function` is never used
[INFO] [stdout]   --> src/expr/mod.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Function {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Symbol` is never constructed
[INFO] [stdout]   --> src/expr/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Symbol {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/expr/mod.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Symbol {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 22 |     pub fn new(ident: char) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BaseFunc` is never used
[INFO] [stdout]  --> src/expr/base_func.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum BaseFunc {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eval` is never used
[INFO] [stdout]   --> src/expr/base_func.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl BaseFunc {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 23 |     pub fn eval(&self, x: f64) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Join` is never constructed
[INFO] [stdout]  --> src/expr/join.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Join {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `eval`, and `join` are never used
[INFO] [stdout]   --> src/expr/join.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Join {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn new(f: BaseFunc) -> Join {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn eval(&self, x: f64) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn join(self, other: Self, join_type: JoinType) -> Result<Self, JoinFuncError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `JoinType` is never used
[INFO] [stdout]   --> src/expr/join.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub enum JoinType {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `JoinFuncError` is never used
[INFO] [stdout]   --> src/expr/join.rs:67:10
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub enum JoinFuncError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `destructure` is never used
[INFO] [stdout]   --> src/expr/polynomial.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl PolyExpr {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn destructure(&self) -> Result<Vec<Join>, JoinFuncError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Symbol` is never constructed
[INFO] [stdout]   --> src/expr/polynomial.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Symbol {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/expr/polynomial.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 121 | impl Symbol {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] 122 |     pub fn new(ident: char) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Form` is never used
[INFO] [stdout]   --> src/main.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum Form {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CAS` is never constructed
[INFO] [stdout]   --> src/main.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct CAS {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `solve` are never used
[INFO] [stdout]   --> src/main.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl CAS {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn new(lhs: Join, rhs: Join, symbol: Symbol) -> CAS {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn solve(&mut self) -> Join {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]  --> src/expr/mod.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Expression {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Symbol` is never constructed
[INFO] [stdout]   --> src/expr/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Symbol {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/expr/mod.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Symbol {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 22 |     pub fn new(ident: char) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `destructure` is never used
[INFO] [stdout]   --> src/expr/polynomial.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl PolyExpr {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn destructure(&self) -> Result<Vec<Join>, JoinFuncError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Symbol` is never constructed
[INFO] [stdout]   --> src/expr/polynomial.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Symbol {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/expr/polynomial.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 121 | impl Symbol {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] 122 |     pub fn new(ident: char) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.75s
[INFO] running `Command { std: "docker" "inspect" "95893bd24493ed7ad8560710adf4d3f7e1e8c49f225c7187548d5699a04021e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95893bd24493ed7ad8560710adf4d3f7e1e8c49f225c7187548d5699a04021e3", kill_on_drop: false }`
[INFO] [stdout] 95893bd24493ed7ad8560710adf4d3f7e1e8c49f225c7187548d5699a04021e3
