[INFO] updating cached repository https://github.com/garebareDA/koto
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/garebareDA/koto
[INFO] [stderr]    3eb4408..9c534d4  dev        -> dev
[INFO] [stderr]    3eb4408..3819fbf  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3819fbf67adfff9d80414f5f0a397d4c91590482
[INFO] checking garebareDA/koto against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgarebareDA%2Fkoto" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/garebareDA/koto on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/garebareDA/koto
[INFO] finished tweaking git repo https://github.com/garebareDA/koto
[INFO] tweaked toml for git repo https://github.com/garebareDA/koto written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/garebareDA/koto already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a780f29d57a7e068b3f68abdde75a3329dd82b5ae86daf7ef637d01e2321948d
[INFO] running `"docker" "start" "-a" "a780f29d57a7e068b3f68abdde75a3329dd82b5ae86daf7ef637d01e2321948d"`
[INFO] [stderr]     Checking koto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]   --> src/interpreter/Arithmetic.rs:75:17
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let mut result = false;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]   --> src/interpreter/Arithmetic.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let mut result = false;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]    --> src/interpreter/Arithmetic.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let mut result = false;
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]    --> src/interpreter/Arithmetic.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |         let mut result = false;
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]   --> src/interpreter/Arithmetic.rs:75:17
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let mut result = false;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ast/Parsing.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let mut if_ast = Ast::IfAST::new(result_vec);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]   --> src/interpreter/Arithmetic.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let mut result = false;
[INFO] [stderr]    |                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]    --> src/interpreter/Arithmetic.rs:115:17
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let mut result = false;
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `result` is never read
[INFO] [stderr]    --> src/interpreter/Arithmetic.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |         let mut result = false;
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ast/Parsing.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let mut if_ast = Ast::IfAST::new(result_vec);
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `Lexer` should have a snake case name
[INFO] [stderr]  --> src/lexer/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod Lexer;
[INFO] [stderr]   |         ^^^^^ help: convert the identifier to snake case: `lexer`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `Token` should have a snake case name
[INFO] [stderr]  --> src/lexer/mod.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Token;
[INFO] [stderr]   |         ^^^^^ help: convert the identifier to snake case: `token`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Ast` should have a snake case name
[INFO] [stderr]  --> src/ast/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod Ast;
[INFO] [stderr]   |         ^^^ help: convert the identifier to snake case: `ast`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Parsing` should have a snake case name
[INFO] [stderr]  --> src/ast/mod.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Parsing;
[INFO] [stderr]   |         ^^^^^^^ help: convert the identifier to snake case: `parsing`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Interpreter` should have a snake case name
[INFO] [stderr]  --> src/interpreter/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod Interpreter;
[INFO] [stderr]   |         ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `interpreter`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Arithmetic` should have a snake case name
[INFO] [stderr]  --> src/interpreter/mod.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Arithmetic;
[INFO] [stderr]   |         ^^^^^^^^^^ help: convert the identifier to snake case: `arithmetic`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Lexer` should have a snake case name
[INFO] [stderr]  --> src/lexer/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod Lexer;
[INFO] [stderr]   |         ^^^^^ help: convert the identifier to snake case: `lexer`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `Token` should have a snake case name
[INFO] [stderr]  --> src/lexer/mod.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Token;
[INFO] [stderr]   |         ^^^^^ help: convert the identifier to snake case: `token`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Ast` should have a snake case name
[INFO] [stderr]  --> src/ast/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod Ast;
[INFO] [stderr]   |         ^^^ help: convert the identifier to snake case: `ast`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Parsing` should have a snake case name
[INFO] [stderr]  --> src/ast/mod.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Parsing;
[INFO] [stderr]   |         ^^^^^^^ help: convert the identifier to snake case: `parsing`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Interpreter` should have a snake case name
[INFO] [stderr]  --> src/interpreter/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod Interpreter;
[INFO] [stderr]   |         ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `interpreter`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Arithmetic` should have a snake case name
[INFO] [stderr]  --> src/interpreter/mod.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod Arithmetic;
[INFO] [stderr]   |         ^^^^^^^^^^ help: convert the identifier to snake case: `arithmetic`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     file_buffer.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     file_buffer.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.63s
[INFO] running `"docker" "inspect" "a780f29d57a7e068b3f68abdde75a3329dd82b5ae86daf7ef637d01e2321948d"`
[INFO] running `"docker" "rm" "-f" "a780f29d57a7e068b3f68abdde75a3329dd82b5ae86daf7ef637d01e2321948d"`
[INFO] [stdout] a780f29d57a7e068b3f68abdde75a3329dd82b5ae86daf7ef637d01e2321948d