[INFO] cloning repository https://github.com/hirohiso/rust-lisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hirohiso/rust-lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhirohiso%2Frust-lisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhirohiso%2Frust-lisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 598e614bf1b174c1c3ac42f9edf05a7b8e395ed8
[INFO] checking hirohiso/rust-lisp against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhirohiso%2Frust-lisp" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hirohiso/rust-lisp
[INFO] finished tweaking git repo https://github.com/hirohiso/rust-lisp
[INFO] tweaked toml for git repo https://github.com/hirohiso/rust-lisp written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hirohiso/rust-lisp on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hirohiso/rust-lisp 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d26b5ee3f40e837936a2151623e145e0de88e71dcd3fc97029958038e5f3f02
[INFO] running `Command { std: "docker" "start" "-a" "0d26b5ee3f40e837936a2151623e145e0de88e71dcd3fc97029958038e5f3f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d26b5ee3f40e837936a2151623e145e0de88e71dcd3fc97029958038e5f3f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d26b5ee3f40e837936a2151623e145e0de88e71dcd3fc97029958038e5f3f02", kill_on_drop: false }`
[INFO] [stdout] 0d26b5ee3f40e837936a2151623e145e0de88e71dcd3fc97029958038e5f3f02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee4ff5a24402e299e7e3b436923d180e5874f90b524133f2cbfa7cc068878db7
[INFO] running `Command { std: "docker" "start" "-a" "ee4ff5a24402e299e7e3b436923d180e5874f90b524133f2cbfa7cc068878db7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rust-lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `symbol`
[INFO] [stdout]   --> src/enviroment.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn get(& self,symbol:&str)->LispCell{
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_symbol`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/enviroment.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments{
[INFO] [stdout]    |                 ^^^^^^                 ^^^^^^^^^^^^
[INFO] [stdout]    |                 |                      ||
[INFO] [stdout]    |                 |                      |the same lifetime is hidden here
[INFO] [stdout]    |                 |                      the same lifetime is elided here
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments<'_>{
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `symbol`
[INFO] [stdout]   --> src/enviroment.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn get(& self,symbol:&str)->LispCell{
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_symbol`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/enviroment.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments{
[INFO] [stdout]    |                 ^^^^^^                 ^^^^^^^^^^^^
[INFO] [stdout]    |                 |                      ||
[INFO] [stdout]    |                 |                      |the same lifetime is hidden here
[INFO] [stdout]    |                 |                      the same lifetime is elided here
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments<'_>{
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `env` and `ops::Deref`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, io, ops::Deref};
[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: `NoExpand`
[INFO] [stdout]  --> src/reader.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use regex::{NoExpand, Regex};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `readerObj` should have an upper camel case name
[INFO] [stdout]   --> src/reader.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct readerObj<'a> {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to upper camel case: `ReaderObj`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `env` and `ops::Deref`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, io, ops::Deref};
[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: `NoExpand`
[INFO] [stdout]  --> src/reader.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use regex::{NoExpand, Regex};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `readerObj` should have an upper camel case name
[INFO] [stdout]   --> src/reader.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct readerObj<'a> {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to upper camel case: `ReaderObj`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `symbol`
[INFO] [stdout]   --> src/enviroment.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn get(& self,symbol:&str)->LispCell{
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_symbol`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tttt` is never used
[INFO] [stdout]  --> src/eval.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn tttt(){
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `outer` and `data` are never read
[INFO] [stdout]  --> src/enviroment.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Enviroments<'a>{
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 4 |     functions :Vec<(&'a str, fn(&[i32]) -> i32)>,
[INFO] [stdout] 5 |     outer : Option<&'a Enviroments<'a>>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     data : Vec<(String, LispCell)>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set`, `find`, and `get` are never used
[INFO] [stdout]   --> src/enviroment.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<'a> Enviroments<'a>{
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn set(&mut self,symbol : String,value :LispCell){
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn get(& self,symbol:&str)->LispCell{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/reader.rs:57:46
[INFO] [stdout]    |
[INFO] [stdout] 57 |             Err(_) =>return LispCell::Symbol(String::from_str(sym).unwrap()),
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/enviroment.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments{
[INFO] [stdout]    |                 ^^^^^^                 ^^^^^^^^^^^^
[INFO] [stdout]    |                 |                      ||
[INFO] [stdout]    |                 |                      |the same lifetime is hidden here
[INFO] [stdout]    |                 |                      the same lifetime is elided here
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments<'_>{
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual`
[INFO] [stdout]   --> src/reader.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let actual = read_str("(* 1 (+ 1 2))");
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-lisp` (bin "rust-lisp") due to 1 previous error; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `symbol`
[INFO] [stdout]   --> src/enviroment.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn get(& self,symbol:&str)->LispCell{
[INFO] [stdout]    |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_symbol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tttt` is never used
[INFO] [stdout]  --> src/eval.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn tttt(){
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `outer` and `data` are never read
[INFO] [stdout]  --> src/enviroment.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Enviroments<'a>{
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 4 |     functions :Vec<(&'a str, fn(&[i32]) -> i32)>,
[INFO] [stdout] 5 |     outer : Option<&'a Enviroments<'a>>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     data : Vec<(String, LispCell)>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set`, `find`, and `get` are never used
[INFO] [stdout]   --> src/enviroment.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<'a> Enviroments<'a>{
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn set(&mut self,symbol : String,value :LispCell){
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments{
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn get(& self,symbol:&str)->LispCell{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/reader.rs:57:46
[INFO] [stdout]    |
[INFO] [stdout] 57 |             Err(_) =>return LispCell::Symbol(String::from_str(sym).unwrap()),
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/enviroment.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments{
[INFO] [stdout]    |                 ^^^^^^                 ^^^^^^^^^^^^
[INFO] [stdout]    |                 |                      ||
[INFO] [stdout]    |                 |                      |the same lifetime is hidden here
[INFO] [stdout]    |                 |                      the same lifetime is elided here
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn find(& self,symbol : &str)->&Enviroments<'_>{
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-lisp` (bin "rust-lisp" test) due to 1 previous error; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ee4ff5a24402e299e7e3b436923d180e5874f90b524133f2cbfa7cc068878db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee4ff5a24402e299e7e3b436923d180e5874f90b524133f2cbfa7cc068878db7", kill_on_drop: false }`
[INFO] [stdout] ee4ff5a24402e299e7e3b436923d180e5874f90b524133f2cbfa7cc068878db7
