[INFO] fetching crate countroo 0.1.7...
[INFO] checking countroo-0.1.7 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate countroo 0.1.7 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate countroo 0.1.7
[INFO] finished tweaking crates.io crate countroo 0.1.7
[INFO] tweaked toml for crates.io crate countroo 0.1.7 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate countroo 0.1.7 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 72 packages to latest compatible versions
[INFO] [stderr]       Adding cargo-toml-workspace v5.0.0 (available: v7.0.9)
[INFO] [stderr]       Adding quick-xml v0.31.0 (available: v0.40.1)
[INFO] [stderr]       Adding toml v0.8.23 (available: v1.1.2+spec-1.1.0)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d104fdab7af38b4209f1498ae0db31dd4e04a154ac070d9aeffc622481033dbd
[INFO] running `Command { std: "docker" "start" "-a" "d104fdab7af38b4209f1498ae0db31dd4e04a154ac070d9aeffc622481033dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d104fdab7af38b4209f1498ae0db31dd4e04a154ac070d9aeffc622481033dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d104fdab7af38b4209f1498ae0db31dd4e04a154ac070d9aeffc622481033dbd", kill_on_drop: false }`
[INFO] [stdout] d104fdab7af38b4209f1498ae0db31dd4e04a154ac070d9aeffc622481033dbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 78ef81fbd13d91fc6bfb8e0651902094440cc74a76118606a8cd21d44cb186fa
[INFO] running `Command { std: "docker" "start" "-a" "78ef81fbd13d91fc6bfb8e0651902094440cc74a76118606a8cd21d44cb186fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking memchr v2.8.1
[INFO] [stderr]     Checking castaway v0.2.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking glob v0.3.3
[INFO] [stderr]    Compiling countroo v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking normalize-path v0.2.1
[INFO] [stderr]     Checking encode_unicode v1.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]     Checking prettytable-rs v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking toml_datetime v0.6.11
[INFO] [stderr]     Checking compact_str v0.7.1
[INFO] [stderr]     Checking toml_edit v0.22.27
[INFO] [stderr]     Checking toml v0.8.23
[INFO] [stderr]     Checking cargo_toml v0.19.2
[INFO] [stderr]     Checking cargo-toml-workspace v5.0.0
[INFO] [stdout] error: struct `FileWriter` is never constructed
[INFO] [stdout]   --> src/output_adapters/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct FileWriter {
[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] [stderr] error: could not compile `countroo` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `FileWriter` is never constructed
[INFO] [stdout]   --> src/output_adapters/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct FileWriter {
[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] [stderr] error: could not compile `countroo` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "78ef81fbd13d91fc6bfb8e0651902094440cc74a76118606a8cd21d44cb186fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78ef81fbd13d91fc6bfb8e0651902094440cc74a76118606a8cd21d44cb186fa", kill_on_drop: false }`
[INFO] [stdout] 78ef81fbd13d91fc6bfb8e0651902094440cc74a76118606a8cd21d44cb186fa
