[INFO] updating cached repository https://github.com/sdmcode/i_v
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aa8d4e6cdb581bf2efdd11c8e86e84f3051f9ac3
[INFO] checking sdmcode/i_v against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdmcode%2Fi_v" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sdmcode/i_v on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sdmcode/i_v
[INFO] finished tweaking git repo https://github.com/sdmcode/i_v
[INFO] tweaked toml for git repo https://github.com/sdmcode/i_v written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/sdmcode/i_v already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 8fd505d804634cd338eb1df40ac888b0a310df09f0569304fe97c9aba33133fb
[INFO] running `"docker" "start" "-a" "8fd505d804634cd338eb1df40ac888b0a310df09f0569304fe97c9aba33133fb"`
[INFO] [stderr]     Checking i_v v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `compiler::parser::ParseResult`
[INFO] [stderr]   --> src/repl/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use compiler::parser::ParseResult;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `compiler::parser::ParseResult`
[INFO] [stderr]   --> src/repl/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use compiler::parser::ParseResult;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/compiler/parser.rs:540:9
[INFO] [stderr]     |
[INFO] [stderr] 493 | /         loop {
[INFO] [stderr] 494 | |
[INFO] [stderr] 495 | |             match cmp.clone() {
[INFO] [stderr] 496 | |                 ParseResult::Success(lr) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 538 | |             }
[INFO] [stderr] 539 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 540 |           return cmp;
[INFO] [stderr]     |           ^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/compiler/parser.rs:828:9
[INFO] [stderr]     |
[INFO] [stderr] 787 | /         match cur_token {
[INFO] [stderr] 788 | |             Token::Print => return self.parse_print_expression(),
[INFO] [stderr] 789 | |             Token::LeftBrace => {
[INFO] [stderr] 790 | |                 let mut exs = vec!();
[INFO] [stderr] ...   |
[INFO] [stderr] 825 | |             _ => return self.parse_statement()
[INFO] [stderr] 826 | |         }
[INFO] [stderr]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 827 | 
[INFO] [stderr] 828 |           return ParseResult::Failed("lol".to_string())
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/compiler/parser.rs:562:81
[INFO] [stderr]     |
[INFO] [stderr] 562 | ...                   ExpressionType::LiteralExpression(name, v) =...
[INFO] [stderr]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ident` is never read
[INFO] [stderr]    --> src/compiler/parser.rs:597:13
[INFO] [stderr]     |
[INFO] [stderr] 597 |         let mut ident = String::new();
[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 `name` is never read
[INFO] [stderr]    --> src/compiler/parser.rs:688:21
[INFO] [stderr]     |
[INFO] [stderr] 688 |                 let mut name = String::new();
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/compiler/parser.rs:834:34
[INFO] [stderr]     |
[INFO] [stderr] 834 |             ParseResult::Success(s) => {
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/compiler/parser.rs:540:9
[INFO] [stderr]     |
[INFO] [stderr] 493 | /         loop {
[INFO] [stderr] 494 | |
[INFO] [stderr] 495 | |             match cmp.clone() {
[INFO] [stderr] 496 | |                 ParseResult::Success(lr) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 538 | |             }
[INFO] [stderr] 539 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 540 |           return cmp;
[INFO] [stderr]     |           ^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/compiler/parser.rs:828:9
[INFO] [stderr]     |
[INFO] [stderr] 787 | /         match cur_token {
[INFO] [stderr] 788 | |             Token::Print => return self.parse_print_expression(),
[INFO] [stderr] 789 | |             Token::LeftBrace => {
[INFO] [stderr] 790 | |                 let mut exs = vec!();
[INFO] [stderr] ...   |
[INFO] [stderr] 825 | |             _ => return self.parse_statement()
[INFO] [stderr] 826 | |         }
[INFO] [stderr]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 827 | 
[INFO] [stderr] 828 |           return ParseResult::Failed("lol".to_string())
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler/parser.rs:271:16
[INFO] [stderr]     |
[INFO] [stderr] 271 |     pub fn new(mut toks: Vec<Token>) -> Parser {
[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: method is never used: `skip`
[INFO] [stderr]    --> src/compiler/mod.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn skip(&mut self, num: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/compiler/parser.rs:562:81
[INFO] [stderr]     |
[INFO] [stderr] 562 | ...                   ExpressionType::LiteralExpression(name, v) =...
[INFO] [stderr]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ident` is never read
[INFO] [stderr]    --> src/compiler/parser.rs:597:13
[INFO] [stderr]     |
[INFO] [stderr] 597 |         let mut ident = String::new();
[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 `name` is never read
[INFO] [stderr]    --> src/compiler/parser.rs:688:21
[INFO] [stderr]     |
[INFO] [stderr] 688 |                 let mut name = String::new();
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/compiler/parser.rs:834:34
[INFO] [stderr]     |
[INFO] [stderr] 834 |             ParseResult::Success(s) => {
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler/parser.rs:271:16
[INFO] [stderr]     |
[INFO] [stderr] 271 |     pub fn new(mut toks: Vec<Token>) -> Parser {
[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: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `compiler::parser::ParseResult`
[INFO] [stderr]   --> src/repl/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use compiler::parser::ParseResult;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `compiler::parser::ParseResult`
[INFO] [stderr]   --> src/repl/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use compiler::parser::ParseResult;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/compiler/parser.rs:540:9
[INFO] [stderr]     |
[INFO] [stderr] 493 | /         loop {
[INFO] [stderr] 494 | |
[INFO] [stderr] 495 | |             match cmp.clone() {
[INFO] [stderr] 496 | |                 ParseResult::Success(lr) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 538 | |             }
[INFO] [stderr] 539 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 540 |           return cmp;
[INFO] [stderr]     |           ^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/compiler/parser.rs:828:9
[INFO] [stderr]     |
[INFO] [stderr] 787 | /         match cur_token {
[INFO] [stderr] 788 | |             Token::Print => return self.parse_print_expression(),
[INFO] [stderr] 789 | |             Token::LeftBrace => {
[INFO] [stderr] 790 | |                 let mut exs = vec!();
[INFO] [stderr] ...   |
[INFO] [stderr] 825 | |             _ => return self.parse_statement()
[INFO] [stderr] 826 | |         }
[INFO] [stderr]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 827 | 
[INFO] [stderr] 828 |           return ParseResult::Failed("lol".to_string())
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/compiler/parser.rs:562:81
[INFO] [stderr]     |
[INFO] [stderr] 562 | ...                   ExpressionType::LiteralExpression(name, v) =...
[INFO] [stderr]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ident` is never read
[INFO] [stderr]    --> src/compiler/parser.rs:597:13
[INFO] [stderr]     |
[INFO] [stderr] 597 |         let mut ident = String::new();
[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 `name` is never read
[INFO] [stderr]    --> src/compiler/parser.rs:688:21
[INFO] [stderr]     |
[INFO] [stderr] 688 |                 let mut name = String::new();
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/compiler/parser.rs:834:34
[INFO] [stderr]     |
[INFO] [stderr] 834 |             ParseResult::Success(s) => {
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler/parser.rs:271:16
[INFO] [stderr]     |
[INFO] [stderr] 271 |     pub fn new(mut toks: Vec<Token>) -> Parser {
[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: method is never used: `skip`
[INFO] [stderr]    --> src/compiler/mod.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn skip(&mut self, num: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/compiler/parser.rs:540:9
[INFO] [stderr]     |
[INFO] [stderr] 493 | /         loop {
[INFO] [stderr] 494 | |
[INFO] [stderr] 495 | |             match cmp.clone() {
[INFO] [stderr] 496 | |                 ParseResult::Success(lr) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 538 | |             }
[INFO] [stderr] 539 | |         }
[INFO] [stderr]     | |_________- any code following this expression is unreachable
[INFO] [stderr] 540 |           return cmp;
[INFO] [stderr]     |           ^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/compiler/parser.rs:828:9
[INFO] [stderr]     |
[INFO] [stderr] 787 | /         match cur_token {
[INFO] [stderr] 788 | |             Token::Print => return self.parse_print_expression(),
[INFO] [stderr] 789 | |             Token::LeftBrace => {
[INFO] [stderr] 790 | |                 let mut exs = vec!();
[INFO] [stderr] ...   |
[INFO] [stderr] 825 | |             _ => return self.parse_statement()
[INFO] [stderr] 826 | |         }
[INFO] [stderr]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 827 | 
[INFO] [stderr] 828 |           return ParseResult::Failed("lol".to_string())
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/compiler/parser.rs:562:81
[INFO] [stderr]     |
[INFO] [stderr] 562 | ...                   ExpressionType::LiteralExpression(name, v) =...
[INFO] [stderr]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ident` is never read
[INFO] [stderr]    --> src/compiler/parser.rs:597:13
[INFO] [stderr]     |
[INFO] [stderr] 597 |         let mut ident = String::new();
[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 `name` is never read
[INFO] [stderr]    --> src/compiler/parser.rs:688:21
[INFO] [stderr]     |
[INFO] [stderr] 688 |                 let mut name = String::new();
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/compiler/parser.rs:834:34
[INFO] [stderr]     |
[INFO] [stderr] 834 |             ParseResult::Success(s) => {
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/compiler/parser.rs:271:16
[INFO] [stderr]     |
[INFO] [stderr] 271 |     pub fn new(mut toks: Vec<Token>) -> Parser {
[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: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `"docker" "inspect" "8fd505d804634cd338eb1df40ac888b0a310df09f0569304fe97c9aba33133fb"`
[INFO] running `"docker" "rm" "-f" "8fd505d804634cd338eb1df40ac888b0a310df09f0569304fe97c9aba33133fb"`
[INFO] [stdout] 8fd505d804634cd338eb1df40ac888b0a310df09f0569304fe97c9aba33133fb