[INFO] cloning repository https://github.com/jntun/dew
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jntun/dew" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjntun%2Fdew", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjntun%2Fdew'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8292a423462ca2784a9fa889bf2f21d5dbbed67c
[INFO] checking jntun/dew 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%2Fjntun%2Fdew" "/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/jntun/dew
[INFO] finished tweaking git repo https://github.com/jntun/dew
[INFO] tweaked toml for git repo https://github.com/jntun/dew written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jntun/dew 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/jntun/dew 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] 5fcc8f9a82d694f5772e91a4e06623f5924d55f3ad4a380bab8d57a12fe0bc85
[INFO] running `Command { std: "docker" "start" "-a" "5fcc8f9a82d694f5772e91a4e06623f5924d55f3ad4a380bab8d57a12fe0bc85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fcc8f9a82d694f5772e91a4e06623f5924d55f3ad4a380bab8d57a12fe0bc85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fcc8f9a82d694f5772e91a4e06623f5924d55f3ad4a380bab8d57a12fe0bc85", kill_on_drop: false }`
[INFO] [stdout] 5fcc8f9a82d694f5772e91a4e06623f5924d55f3ad4a380bab8d57a12fe0bc85
[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] 3435308f557128894228f67450683c176c7f1e8906a684261de79a5e74ff838d
[INFO] running `Command { std: "docker" "start" "-a" "3435308f557128894228f67450683c176c7f1e8906a684261de79a5e74ff838d", kill_on_drop: false }`
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking buf-trait v0.4.1
[INFO] [stderr]     Checking byteyarn v0.5.1
[INFO] [stderr]     Checking dew v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]  --> src/ast.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Token {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Lexeme` is never used
[INFO] [stdout]   --> src/ast.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum Lexeme {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `truthy` is never used
[INFO] [stdout]   --> src/ast.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn truthy(value: Literal) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]  --> src/ast.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Token {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Lexeme` is never used
[INFO] [stdout]   --> src/ast.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum Lexeme {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `truthy` is never used
[INFO] [stdout]   --> src/ast.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn truthy(value: Literal) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Literal, ExecutionError>
[INFO] [stdout]   --> src/lib.rs:51:68
[INFO] [stdout]    |
[INFO] [stdout] 51 |       pub fn execute(&mut self) -> Result<ast::Literal, ExecutionError> {
[INFO] [stdout]    |  _______________________________________________________________________^
[INFO] [stdout] 52 | |         Ok(ast::Literal::Integer(0))
[INFO] [stdout] 53 | |     } 
[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<Literal, ExecutionError>
[INFO] [stdout]   --> src/lib.rs:52:3
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(ast::Literal::Integer(0))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Source, BuildError>
[INFO] [stdout]   --> src/lib.rs:62:52
[INFO] [stdout]    |
[INFO] [stdout] 62 |       pub fn finish(self) -> Result<Source, BuildError> {
[INFO] [stdout]    |  _______________________________________________________^
[INFO] [stdout] 63 | |         Ok(self.source)
[INFO] [stdout] 64 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Source, BuildError>
[INFO] [stdout]   --> src/lib.rs:63:3
[INFO] [stdout]    |
[INFO] [stdout] 63 |         Ok(self.source)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Literal, ExecutionError>
[INFO] [stdout]   --> src/lib.rs:51:68
[INFO] [stdout]    |
[INFO] [stdout] 51 |       pub fn execute(&mut self) -> Result<ast::Literal, ExecutionError> {
[INFO] [stdout]    |  _______________________________________________________________________^
[INFO] [stdout] 52 | |         Ok(ast::Literal::Integer(0))
[INFO] [stdout] 53 | |     } 
[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<Literal, ExecutionError>
[INFO] [stdout]   --> src/lib.rs:52:3
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(ast::Literal::Integer(0))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Source, BuildError>
[INFO] [stdout]   --> src/lib.rs:62:52
[INFO] [stdout]    |
[INFO] [stdout] 62 |       pub fn finish(self) -> Result<Source, BuildError> {
[INFO] [stdout]    |  _______________________________________________________^
[INFO] [stdout] 63 | |         Ok(self.source)
[INFO] [stdout] 64 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Source, BuildError>
[INFO] [stdout]   --> src/lib.rs:63:3
[INFO] [stdout]    |
[INFO] [stdout] 63 |         Ok(self.source)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dew` (lib test) due to 4 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `dew` (lib) due to 4 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3435308f557128894228f67450683c176c7f1e8906a684261de79a5e74ff838d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3435308f557128894228f67450683c176c7f1e8906a684261de79a5e74ff838d", kill_on_drop: false }`
[INFO] [stdout] 3435308f557128894228f67450683c176c7f1e8906a684261de79a5e74ff838d
