[INFO] updating cached repository LiamOW/RustyCalculator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LiamOW/RustyCalculator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LiamOW/RustyCalculator" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/LiamOW/RustyCalculator"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/LiamOW/RustyCalculator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LiamOW/RustyCalculator" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/LiamOW/RustyCalculator"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/LiamOW/RustyCalculator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 58001e35e9bc25813f60a671724fdf5215ff8475
[INFO] sha for GitHub repo LiamOW/RustyCalculator: 58001e35e9bc25813f60a671724fdf5215ff8475
[INFO] validating manifest of LiamOW/RustyCalculator on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of LiamOW/RustyCalculator on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing LiamOW/RustyCalculator
[INFO] finished frobbing LiamOW/RustyCalculator
[INFO] frobbed toml for LiamOW/RustyCalculator written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/LiamOW/RustyCalculator/Cargo.toml
[INFO] started frobbing LiamOW/RustyCalculator
[INFO] finished frobbing LiamOW/RustyCalculator
[INFO] frobbed toml for LiamOW/RustyCalculator written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/LiamOW/RustyCalculator/Cargo.toml
[INFO] crate LiamOW/RustyCalculator already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking LiamOW/RustyCalculator against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-7/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/LiamOW/RustyCalculator:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ef679960b60a7c84efdba49b23e327889a8fff2f9584bc22b381577263881468
[INFO] running `"docker" "start" "-a" "ef679960b60a7c84efdba49b23e327889a8fff2f9584bc22b381577263881468"`
[INFO] [stderr]     Checking rustyline v3.0.0
[INFO] [stderr]     Checking calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Token` is imported redundantly
[INFO] [stderr]   --> src/parser.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 6  | use crate::ast::{Expr, Precedence, Token};
[INFO] [stderr]    |                                    ----- the item `Token` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 47 |     use crate::ast::Token;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Token` is imported redundantly
[INFO] [stderr]   --> src/parser.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 6  | use crate::ast::{Expr, Precedence, Token};
[INFO] [stderr]    |                                    ----- the item `Token` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 47 |     use crate::ast::Token;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/parser.rs:170:11
[INFO] [stderr]     |
[INFO] [stderr] 170 |   fn from(err: NoneError) -> Self {
[INFO] [stderr]     |           ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/parser.rs:170:11
[INFO] [stderr]     |
[INFO] [stderr] 170 |   fn from(err: NoneError) -> Self {
[INFO] [stderr]     |           ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Neg`
[INFO] [stderr]   --> src/ast.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   Neg(Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Prefix`
[INFO] [stderr]   --> src/ast.rs:66:3
[INFO] [stderr]    |
[INFO] [stderr] 66 |   Prefix,
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_source`
[INFO] [stderr]   --> src/lexer.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn set_source(&mut self, source: &'a str) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LexError`
[INFO] [stderr]   --> src/lexer.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub enum LexError {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(uniform_paths)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Neg`
[INFO] [stderr]   --> src/ast.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   Neg(Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Prefix`
[INFO] [stderr]   --> src/ast.rs:66:3
[INFO] [stderr]    |
[INFO] [stderr] 66 |   Prefix,
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_source`
[INFO] [stderr]   --> src/lexer.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn set_source(&mut self, source: &'a str) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `LexError`
[INFO] [stderr]   --> src/lexer.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub enum LexError {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(uniform_paths)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `"docker" "inspect" "ef679960b60a7c84efdba49b23e327889a8fff2f9584bc22b381577263881468"`
[INFO] running `"docker" "rm" "-f" "ef679960b60a7c84efdba49b23e327889a8fff2f9584bc22b381577263881468"`
[INFO] [stdout] ef679960b60a7c84efdba49b23e327889a8fff2f9584bc22b381577263881468