[INFO] cloning repository https://github.com/jchubbard/spartan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jchubbard/spartan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjchubbard%2Fspartan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjchubbard%2Fspartan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 067b090230cbd96871888c376b2e4fbd40088ad0
[INFO] checking jchubbard/spartan against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjchubbard%2Fspartan" "/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/jchubbard/spartan
[INFO] finished tweaking git repo https://github.com/jchubbard/spartan
[INFO] tweaked toml for git repo https://github.com/jchubbard/spartan written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jchubbard/spartan on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jchubbard/spartan 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8ae5c98bf4645d68af19d3ab82846998aa00af9c5c9da6848f39628472cdba6
[INFO] running `Command { std: "docker" "start" "-a" "a8ae5c98bf4645d68af19d3ab82846998aa00af9c5c9da6848f39628472cdba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8ae5c98bf4645d68af19d3ab82846998aa00af9c5c9da6848f39628472cdba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8ae5c98bf4645d68af19d3ab82846998aa00af9c5c9da6848f39628472cdba6", kill_on_drop: false }`
[INFO] [stdout] a8ae5c98bf4645d68af19d3ab82846998aa00af9c5c9da6848f39628472cdba6
[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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ac14edf019e915ab64321c3f37e7d881653defe5943b90e26e31d14f3a09398
[INFO] running `Command { std: "docker" "start" "-a" "8ac14edf019e915ab64321c3f37e7d881653defe5943b90e26e31d14f3a09398", kill_on_drop: false }`
[INFO] [stderr]     Checking spartan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> lexer/lib.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let buffer = String::new();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> lexer/lib.rs:43:16
[INFO] [stdout]    |
[INFO] [stdout] 43 |             Ok(l) => {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `TokenStream` is never constructed
[INFO] [stdout]   --> lexer/token.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct TokenStream <'a> {
[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: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stream` is never read
[INFO] [stdout]   --> lexer/token.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct TokenStream <'a> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 27 |     stream: Vec<Token<'a>>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spartan` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]   --> lexer/lib.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let buffer = String::new();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> lexer/lib.rs:43:16
[INFO] [stdout]    |
[INFO] [stdout] 43 |             Ok(l) => {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `TokenStream` is never constructed
[INFO] [stdout]   --> lexer/token.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct TokenStream <'a> {
[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: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stream` is never read
[INFO] [stdout]   --> lexer/token.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct TokenStream <'a> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 27 |     stream: Vec<Token<'a>>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spartan` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8ac14edf019e915ab64321c3f37e7d881653defe5943b90e26e31d14f3a09398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac14edf019e915ab64321c3f37e7d881653defe5943b90e26e31d14f3a09398", kill_on_drop: false }`
[INFO] [stdout] 8ac14edf019e915ab64321c3f37e7d881653defe5943b90e26e31d14f3a09398