[INFO] cloning repository https://github.com/jelmer/r-description-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jelmer/r-description-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjelmer%2Fr-description-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjelmer%2Fr-description-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d5cf8c59cf4ed0204e293034fa7d6c8be563a9e
[INFO] checking jelmer/r-description-rs against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjelmer%2Fr-description-rs" "/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/jelmer/r-description-rs
[INFO] finished tweaking git repo https://github.com/jelmer/r-description-rs
[INFO] tweaked toml for git repo https://github.com/jelmer/r-description-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jelmer/r-description-rs 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/jelmer/r-description-rs 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] 8e95b72e9c515cd4afafe3606bf5d0de8c3ee95f591edc3eacf66bb0ee4395b6
[INFO] running `Command { std: "docker" "start" "-a" "8e95b72e9c515cd4afafe3606bf5d0de8c3ee95f591edc3eacf66bb0ee4395b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e95b72e9c515cd4afafe3606bf5d0de8c3ee95f591edc3eacf66bb0ee4395b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e95b72e9c515cd4afafe3606bf5d0de8c3ee95f591edc3eacf66bb0ee4395b6", kill_on_drop: false }`
[INFO] [stdout] 8e95b72e9c515cd4afafe3606bf5d0de8c3ee95f591edc3eacf66bb0ee4395b6
[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] 4bb3dbf9cfe12436a3465e34f8115875ef9391514ac16ff709c1403563528665
[INFO] running `Command { std: "docker" "start" "-a" "4bb3dbf9cfe12436a3465e34f8115875ef9391514ac16ff709c1403563528665", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking text-size v1.1.1
[INFO] [stderr]    Compiling zmij v1.0.2
[INFO] [stderr]     Checking countme v3.0.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]     Checking rowan v0.16.1
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling deb822-derive v0.3.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]     Checking deb822-fast v0.2.3
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.1
[INFO] [stderr]     Checking zerovec v0.11.5
[INFO] [stderr]     Checking zerotrie v0.2.3
[INFO] [stderr]     Checking tinystr v0.8.2
[INFO] [stderr]     Checking potential_utf v0.1.4
[INFO] [stderr]     Checking icu_collections v2.1.1
[INFO] [stderr]     Checking icu_locale_core v2.1.1
[INFO] [stderr]     Checking icu_provider v2.1.1
[INFO] [stderr]     Checking icu_normalizer v2.1.1
[INFO] [stderr]     Checking icu_properties v2.1.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking deb822-lossless v0.5.16
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]     Checking r-description v0.3.7 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `ParseError` is never constructed
[INFO] [stdout]    --> src/lossless.rs:345:16
[INFO] [stdout]     |
[INFO] [stdout] 345 |     pub struct ParseError(Vec<String>);
[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 `r-description` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `ParseError` is never constructed
[INFO] [stdout]    --> src/lossless.rs:345:16
[INFO] [stdout]     |
[INFO] [stdout] 345 |     pub struct ParseError(Vec<String>);
[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 `r-description` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4bb3dbf9cfe12436a3465e34f8115875ef9391514ac16ff709c1403563528665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb3dbf9cfe12436a3465e34f8115875ef9391514ac16ff709c1403563528665", kill_on_drop: false }`
[INFO] [stdout] 4bb3dbf9cfe12436a3465e34f8115875ef9391514ac16ff709c1403563528665