[INFO] cloning repository https://github.com/marcellerusu/ri
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcellerusu/ri" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcellerusu%2Fri", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcellerusu%2Fri'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33144c8e5968f44d99b32f4b98a6467aa5b48ac2
[INFO] checking marcellerusu/ri 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%2Fmarcellerusu%2Fri" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marcellerusu/ri
[INFO] finished tweaking git repo https://github.com/marcellerusu/ri
[INFO] tweaked toml for git repo https://github.com/marcellerusu/ri written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marcellerusu/ri 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/marcellerusu/ri 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 14d3763d7af0b7cb2d1745b1865b386a40ec89f9a65d2fbd3902a9a8690a8237
[INFO] running `Command { std: "docker" "start" "-a" "14d3763d7af0b7cb2d1745b1865b386a40ec89f9a65d2fbd3902a9a8690a8237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14d3763d7af0b7cb2d1745b1865b386a40ec89f9a65d2fbd3902a9a8690a8237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14d3763d7af0b7cb2d1745b1865b386a40ec89f9a65d2fbd3902a9a8690a8237", kill_on_drop: false }`
[INFO] [stdout] 14d3763d7af0b7cb2d1745b1865b386a40ec89f9a65d2fbd3902a9a8690a8237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 866b93a4d14d68934dbf374a85db232da296de7db9e28d83e79818182e22acf7
[INFO] running `Command { std: "docker" "start" "-a" "866b93a4d14d68934dbf374a85db232da296de7db9e28d83e79818182e22acf7", kill_on_drop: false }`
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking ri v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<Token>, LexError>
[INFO] [stdout]  --> src/main.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |     match lex.tokenize() {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<Token>, LexError>
[INFO] [stdout]    --> src/lexer.rs:189:64
[INFO] [stdout]     |
[INFO] [stdout] 189 |       pub fn tokenize(&mut self) -> Result<Vec<Token>, LexError> {
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 190 | |         let mut tokens: Vec<Token> = vec![];
[INFO] [stdout] 191 | |         while self.index < self.program.len() {
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |         Ok(tokens)
[INFO] [stdout] 251 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<Token>, LexError>
[INFO] [stdout]    --> src/lexer.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         Ok(tokens)
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<Token>, LexError>
[INFO] [stdout]  --> src/main.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |     match lex.tokenize() {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<Token>, LexError>
[INFO] [stdout]    --> src/lexer.rs:189:64
[INFO] [stdout]     |
[INFO] [stdout] 189 |       pub fn tokenize(&mut self) -> Result<Vec<Token>, LexError> {
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 190 | |         let mut tokens: Vec<Token> = vec![];
[INFO] [stdout] 191 | |         while self.index < self.program.len() {
[INFO] [stdout] ...   |
[INFO] [stdout] 250 | |         Ok(tokens)
[INFO] [stdout] 251 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<Token>, LexError>
[INFO] [stdout]    --> src/lexer.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         Ok(tokens)
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ri` (bin "ri") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ri` (bin "ri" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "866b93a4d14d68934dbf374a85db232da296de7db9e28d83e79818182e22acf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "866b93a4d14d68934dbf374a85db232da296de7db9e28d83e79818182e22acf7", kill_on_drop: false }`
[INFO] [stdout] 866b93a4d14d68934dbf374a85db232da296de7db9e28d83e79818182e22acf7