[INFO] cloning repository https://github.com/sweetcoco/jsc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sweetcoco/jsc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsweetcoco%2Fjsc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsweetcoco%2Fjsc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b894d004c27bbaa1aef344b14cbb583109f68a82
[INFO] checking sweetcoco/jsc against try#7dabc88a3b6768751847baeb49983f31ac5f20e2 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsweetcoco%2Fjsc" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sweetcoco/jsc
[INFO] finished tweaking git repo https://github.com/sweetcoco/jsc
[INFO] tweaked toml for git repo https://github.com/sweetcoco/jsc written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sweetcoco/jsc on toolchain 7dabc88a3b6768751847baeb49983f31ac5f20e2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sweetcoco/jsc 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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d0c2f66a20181de2b2937036cfae47cdf7993c6a5892ca0c8f1a5b08fdc188f
[INFO] running `Command { std: "docker" "start" "-a" "9d0c2f66a20181de2b2937036cfae47cdf7993c6a5892ca0c8f1a5b08fdc188f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d0c2f66a20181de2b2937036cfae47cdf7993c6a5892ca0c8f1a5b08fdc188f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d0c2f66a20181de2b2937036cfae47cdf7993c6a5892ca0c8f1a5b08fdc188f", kill_on_drop: false }`
[INFO] [stdout] 9d0c2f66a20181de2b2937036cfae47cdf7993c6a5892ca0c8f1a5b08fdc188f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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" "+7dabc88a3b6768751847baeb49983f31ac5f20e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d79bd7dded22896c99ad107363e42f31fd6716c0e2680e54e9e31e0689dc552e
[INFO] running `Command { std: "docker" "start" "-a" "d79bd7dded22896c99ad107363e42f31fd6716c0e2680e54e9e31e0689dc552e", kill_on_drop: false }`
[INFO] [stderr]     Checking jsc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::parser_state_result::ParserStateResult`
[INFO] [stdout]  --> src/parsers/choice_parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::parser_state_result::ParserStateResult;
[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: `parsers::parser_state_result::ParserStateResult`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parsers::parser_state_result::ParserStateResult;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::parser_state_result::ParserStateResult`
[INFO] [stdout]  --> src/parsers/choice_parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::parser_state_result::ParserStateResult;
[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: `parsers::parser_state_result::ParserStateResult`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parsers::parser_state_result::ParserStateResult;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string1`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let string1 = String::from("hello there!");
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string1`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let string1 = String::from("hello there!");
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]  --> src/parsers/parser_state.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ParserState {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     pub error: Option<String>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParserState` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SequenceOfParser` is never constructed
[INFO] [stdout]  --> src/parsers/sequence_of_parser.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct SequenceOfParser {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `format_result` are never used
[INFO] [stdout]   --> src/parsers/sequence_of_parser.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl SequenceOfParser {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new(parsers: Vec<Parser>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn format_result(&self, result: Vec<ParserStateResult>) -> ParserStateResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]  --> src/parsers/parser_state.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ParserState {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     pub error: Option<String>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParserState` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SequenceOfParser` is never constructed
[INFO] [stdout]  --> src/parsers/sequence_of_parser.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct SequenceOfParser {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_string_parser`, `new_sequence_of_parser`, `map`, and `error_map` are never used
[INFO] [stdout]   --> src/parsers/parser.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Parser {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 17 |     pub fn new_string_parser(string: String) -> Parser {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn new_sequence_of_parser(parsers: Vec<Parser>) -> Parser {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn map(self,  map_lambda: impl Fn(ParserStateResult) -> ParserStateResult + 'static) -> Parser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn error_map(self,  error_map_lambda: impl Fn(ParserStateResult, usize) -> String + 'static) -> Parser {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> src/parsers/parser.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub trait ParserClass {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 93 |     fn run(&self, target_string: String) -> ParserState {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `format_result` are never used
[INFO] [stdout]   --> src/parsers/sequence_of_parser.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl SequenceOfParser {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new(parsers: Vec<Parser>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn format_result(&self, result: Vec<ParserStateResult>) -> ParserStateResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_string_parser`, `new_sequence_of_parser`, `map`, and `error_map` are never used
[INFO] [stdout]   --> src/parsers/parser.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Parser {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 17 |     pub fn new_string_parser(string: String) -> Parser {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn new_sequence_of_parser(parsers: Vec<Parser>) -> Parser {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn map(self,  map_lambda: impl Fn(ParserStateResult) -> ParserStateResult + 'static) -> Parser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn error_map(self,  error_map_lambda: impl Fn(ParserStateResult, usize) -> String + 'static) -> Parser {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> src/parsers/parser.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub trait ParserClass {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 93 |     fn run(&self, target_string: String) -> ParserState {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parsers/parser_state_result.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     String(String),
[INFO] [stdout]   |     ------ ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParserStateResult` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 -     String(String),
[INFO] [stdout] 3 +     String(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parsers/parser_state_result.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Sequence(Vec<ParserStateResult>),
[INFO] [stdout]   |     -------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParserStateResult` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     Sequence(Vec<ParserStateResult>),
[INFO] [stdout] 4 +     Sequence(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parsers/parser_state_result.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     String(String),
[INFO] [stdout]   |     ------ ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParserStateResult` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 3 -     String(String),
[INFO] [stdout] 3 +     String(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parsers/parser_state_result.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Sequence(Vec<ParserStateResult>),
[INFO] [stdout]   |     -------- ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParserStateResult` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     Sequence(Vec<ParserStateResult>),
[INFO] [stdout] 4 +     Sequence(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "d79bd7dded22896c99ad107363e42f31fd6716c0e2680e54e9e31e0689dc552e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d79bd7dded22896c99ad107363e42f31fd6716c0e2680e54e9e31e0689dc552e", kill_on_drop: false }`
[INFO] [stdout] d79bd7dded22896c99ad107363e42f31fd6716c0e2680e54e9e31e0689dc552e
