[INFO] cloning repository https://github.com/valcubeto/vega
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/valcubeto/vega" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalcubeto%2Fvega", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalcubeto%2Fvega'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f112f49a8bcc43ecd25ea0f98157db9343c1f0d
[INFO] checking valcubeto/vega against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvalcubeto%2Fvega" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/valcubeto/vega
[INFO] finished tweaking git repo https://github.com/valcubeto/vega
[INFO] tweaked toml for git repo https://github.com/valcubeto/vega written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/valcubeto/vega on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/valcubeto/vega 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c045f4a962459a5f8bf33b33481ee8d37d4311da2f1e2c2afa330a08894749f
[INFO] running `Command { std: "docker" "start" "-a" "0c045f4a962459a5f8bf33b33481ee8d37d4311da2f1e2c2afa330a08894749f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c045f4a962459a5f8bf33b33481ee8d37d4311da2f1e2c2afa330a08894749f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c045f4a962459a5f8bf33b33481ee8d37d4311da2f1e2c2afa330a08894749f", kill_on_drop: false }`
[INFO] [stdout] 0c045f4a962459a5f8bf33b33481ee8d37d4311da2f1e2c2afa330a08894749f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 287e618ec6d62ce67f487565782efed48d99150450bd81922f9c9d8d5088a863
[INFO] running `Command { std: "docker" "start" "-a" "287e618ec6d62ce67f487565782efed48d99150450bd81922f9c9d8d5088a863", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]     Checking hashbrown v0.17.0
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]     Checking bitflags v2.11.1
[INFO] [stderr]     Checking syntax v0.1.0 (/opt/rustwide/workdir/language/syntax)
[INFO] [stderr]     Checking terminal v0.1.0 (/opt/rustwide/workdir/crates/terminal)
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking signal-hook v0.3.18
[INFO] [stderr]     Checking prelude v0.1.0 (/opt/rustwide/workdir/crates/prelude)
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking command-loader v0.1.0 (/opt/rustwide/workdir/crates/command-loader)
[INFO] [stderr]     Checking lexer v0.1.0 (/opt/rustwide/workdir/language/frontend/lexer)
[INFO] [stderr]     Checking vega-run v0.1.0 (/opt/rustwide/workdir/commands/vega-run)
[INFO] [stderr]     Checking signal-hook-mio v0.2.5
[INFO] [stderr]     Checking args v0.1.0 (/opt/rustwide/workdir/crates/args)
[INFO] [stdout] warning: unused import: `prelude::terminal::*`
[INFO] [stdout]  --> crates/args/src/flags.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use prelude::terminal::*;
[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: `std::collections::HashSet`
[INFO] [stdout]  --> crates/args/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude::terminal::*`
[INFO] [stdout]  --> crates/args/src/flags.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use prelude::terminal::*;
[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: `std::collections::HashSet`
[INFO] [stdout]  --> crates/args/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> crates/args/src/flags.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut flags = vec![];
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `disabled`
[INFO] [stdout]   --> crates/args/src/flags.rs:19:18
[INFO] [stdout]    |
[INFO] [stdout] 19 |             let (disabled, flag) = arg.strip_prefix("no-")
[INFO] [stdout]    |                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_disabled`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cand`
[INFO] [stdout]   --> crates/args/src/flags.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 |             if let Some(cand) = candidates.iter().find(|cand| flag.starts_with(&cand.long)) {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_cand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> crates/args/src/flags.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 let Some(x) = flag.split_once('=') else { panic!() };
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> crates/args/src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut flags = vec![];
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_flags`
[INFO] [stdout]   --> crates/args/src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let value_flags = hashset! {
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_value_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParsedFlags` is never used
[INFO] [stdout]  --> crates/args/src/flags2.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type ParsedFlags = HashMap<Str, ParsedFlag>;
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlagLayout` is never constructed
[INFO] [stdout]  --> crates/args/src/flags2.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct FlagLayout {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FlagValue` is never used
[INFO] [stdout]   --> crates/args/src/flags2.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum FlagValue {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_be_negated` is never used
[INFO] [stdout]   --> crates/args/src/flags2.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl FlagLayout {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 19 |     pub fn can_be_negated(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParsedFlag` is never used
[INFO] [stdout]   --> crates/args/src/flags2.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum ParsedFlag {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `ParsedFlag` is never constructed
[INFO] [stdout]   --> crates/args/src/flags.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct ParsedFlag {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `ParsedFlag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `args` (lib test) due to 1 previous error; 13 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> crates/args/src/flags.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut flags = vec![];
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `disabled`
[INFO] [stdout]   --> crates/args/src/flags.rs:19:18
[INFO] [stdout]    |
[INFO] [stdout] 19 |             let (disabled, flag) = arg.strip_prefix("no-")
[INFO] [stdout]    |                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_disabled`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cand`
[INFO] [stdout]   --> crates/args/src/flags.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 |             if let Some(cand) = candidates.iter().find(|cand| flag.starts_with(&cand.long)) {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_cand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> crates/args/src/flags.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 let Some(x) = flag.split_once('=') else { panic!() };
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> crates/args/src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut flags = vec![];
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_flags`
[INFO] [stdout]   --> crates/args/src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let value_flags = hashset! {
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_value_flags`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParsedFlags` is never used
[INFO] [stdout]  --> crates/args/src/flags2.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type ParsedFlags = HashMap<Str, ParsedFlag>;
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlagLayout` is never constructed
[INFO] [stdout]  --> crates/args/src/flags2.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct FlagLayout {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FlagValue` is never used
[INFO] [stdout]   --> crates/args/src/flags2.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum FlagValue {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_be_negated` is never used
[INFO] [stdout]   --> crates/args/src/flags2.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl FlagLayout {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 19 |     pub fn can_be_negated(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParsedFlag` is never used
[INFO] [stdout]   --> crates/args/src/flags2.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum ParsedFlag {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `ParsedFlag` is never constructed
[INFO] [stdout]   --> crates/args/src/flags.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct ParsedFlag {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `ParsedFlag` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `args` (lib) due to 1 previous error; 13 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "287e618ec6d62ce67f487565782efed48d99150450bd81922f9c9d8d5088a863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "287e618ec6d62ce67f487565782efed48d99150450bd81922f9c9d8d5088a863", kill_on_drop: false }`
[INFO] [stdout] 287e618ec6d62ce67f487565782efed48d99150450bd81922f9c9d8d5088a863
