[INFO] cloning repository https://github.com/hiszd/muxrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hiszd/muxrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiszd%2Fmuxrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiszd%2Fmuxrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 542ac84098f88a2b0268dee694d0eb2267db475f
[INFO] checking hiszd/muxrs against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhiszd%2Fmuxrs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hiszd/muxrs
[INFO] finished tweaking git repo https://github.com/hiszd/muxrs
[INFO] tweaked toml for git repo https://github.com/hiszd/muxrs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hiszd/muxrs 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/hiszd/muxrs 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2b4791eb53c26bc4b5a7be2f46d9eda7d92279f3a827933119dc943504845c2b
[INFO] running `Command { std: "docker" "start" "-a" "2b4791eb53c26bc4b5a7be2f46d9eda7d92279f3a827933119dc943504845c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b4791eb53c26bc4b5a7be2f46d9eda7d92279f3a827933119dc943504845c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b4791eb53c26bc4b5a7be2f46d9eda7d92279f3a827933119dc943504845c2b", kill_on_drop: false }`
[INFO] [stdout] 2b4791eb53c26bc4b5a7be2f46d9eda7d92279f3a827933119dc943504845c2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 53dbaa53005c7d03ecf3d9cf6c1e628386ffa0795694b8af846a509857ef2ade
[INFO] running `Command { std: "docker" "start" "-a" "53dbaa53005c7d03ecf3d9cf6c1e628386ffa0795694b8af846a509857ef2ade", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
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[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling typeid v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling erased-serde v0.4.8
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[INFO] [stderr]     Checking anstyle-query v1.1.4
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[INFO] [stderr]    Compiling jobserver v0.1.34
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[INFO] [stderr]     Checking hashlink v0.10.0
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[INFO] [stderr]     Checking json5 v0.4.1
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[INFO] [stderr]     Checking schemars v1.2.1
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[INFO] [stderr]     Checking config v0.15.18
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking git2 v0.20.2
[INFO] [stderr]     Checking muxrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `TmuxSession` is never constructed
[INFO] [stdout]   --> src/tmux/query.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct TmuxSession {
[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: `TmuxSession` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `muxrs` (bin "muxrs") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `TmuxSession` is never constructed
[INFO] [stdout]   --> src/tmux/query.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct TmuxSession {
[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: `TmuxSession` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `muxrs` (bin "muxrs" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "53dbaa53005c7d03ecf3d9cf6c1e628386ffa0795694b8af846a509857ef2ade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53dbaa53005c7d03ecf3d9cf6c1e628386ffa0795694b8af846a509857ef2ade", kill_on_drop: false }`
[INFO] [stdout] 53dbaa53005c7d03ecf3d9cf6c1e628386ffa0795694b8af846a509857ef2ade