[INFO] updating cached repository https://github.com/categulario/rust_shell
[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] 78ee7701c4317f270ce3336731b9536f131df7d0
[INFO] checking categulario/rust_shell against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcategulario%2Frust_shell" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/categulario/rust_shell 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/categulario/rust_shell
[INFO] finished tweaking git repo https://github.com/categulario/rust_shell
[INFO] tweaked toml for git repo https://github.com/categulario/rust_shell written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/categulario/rust_shell 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] d99ccfd9a3d8a11a9a12145a9a0b1068b13b6b6a941f5bd3a26c65b85e545ee4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d99ccfd9a3d8a11a9a12145a9a0b1068b13b6b6a941f5bd3a26c65b85e545ee4"`
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking rust_shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Word`
[INFO] [stderr]  --> src/parser.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Word(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DoubleQuotedString`
[INFO] [stderr]  --> src/parser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     DoubleQuotedString(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SingleQuotedString`
[INFO] [stderr]  --> src/parser.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     SingleQuotedString(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Or`
[INFO] [stderr]  --> src/parser.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Or,
[INFO] [stderr]   |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `And`
[INFO] [stderr]   --> src/parser.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     And,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Parenthesis`
[INFO] [stderr]   --> src/parser.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Parenthesis(char),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pipe`
[INFO] [stderr]   --> src/parser.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Pipe,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Semicolon`
[INFO] [stderr]   --> src/parser.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Semicolon,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UnterminatedQuote`
[INFO] [stderr]   --> src/parser.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     UnterminatedQuote,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IncompleteAnd`
[INFO] [stderr]   --> src/parser.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     IncompleteAnd,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCharacter`
[INFO] [stderr]   --> src/parser.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     InvalidCharacter,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_word`
[INFO] [stderr]   --> src/parser.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn is_word(c: char) -> bool {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_word`
[INFO] [stderr]   --> src/parser.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn get_word<T: Iterator<Item = char>>(iter: &mut Peekable<T>) -> String {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_double_quoted_string`
[INFO] [stderr]   --> src/parser.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn get_double_quoted_string<T: Iterator<Item = char>>(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_single_quoted_string`
[INFO] [stderr]   --> src/parser.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn get_single_quoted_string<T: Iterator<Item = char>>(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_and`
[INFO] [stderr]   --> src/parser.rs:82:4
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn get_and<T: Iterator<Item = char>>(iter: &mut Peekable<T>) -> Result<TokenType, ParseError> {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_or_pipe`
[INFO] [stderr]   --> src/parser.rs:94:4
[INFO] [stderr]    |
[INFO] [stderr] 94 | fn get_or_pipe<T: Iterator<Item = char>>(iter: &mut Peekable<T>) -> TokenType {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]    --> src/parser.rs:106:8
[INFO] [stderr]     |
[INFO] [stderr] 106 | pub fn parse(line: &String) -> Result<Vec<TokenType>, ParseError> {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         process::receive_command(&mut buf.split_whitespace().collect());
[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: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         process::receive_command(&mut buf.split_whitespace().collect());
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `"docker" "inspect" "d99ccfd9a3d8a11a9a12145a9a0b1068b13b6b6a941f5bd3a26c65b85e545ee4"`
[INFO] running `"docker" "rm" "-f" "d99ccfd9a3d8a11a9a12145a9a0b1068b13b6b6a941f5bd3a26c65b85e545ee4"`
[INFO] [stdout] d99ccfd9a3d8a11a9a12145a9a0b1068b13b6b6a941f5bd3a26c65b85e545ee4