[INFO] fetching crate cfgrammar 0.14.2...
[INFO] checking cfgrammar-0.14.2 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate cfgrammar 0.14.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cfgrammar 0.14.2
[INFO] finished tweaking crates.io crate cfgrammar 0.14.2
[INFO] tweaked toml for crates.io crate cfgrammar 0.14.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cfgrammar 0.14.2 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 crates.io crate cfgrammar 0.14.2 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 073de9aa6ac5c33dd2388e94eee022c6e35f9fb21f7fd8519d5589995306395a
[INFO] running `Command { std: "docker" "start" "-a" "073de9aa6ac5c33dd2388e94eee022c6e35f9fb21f7fd8519d5589995306395a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "073de9aa6ac5c33dd2388e94eee022c6e35f9fb21f7fd8519d5589995306395a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073de9aa6ac5c33dd2388e94eee022c6e35f9fb21f7fd8519d5589995306395a", kill_on_drop: false }`
[INFO] [stdout] 073de9aa6ac5c33dd2388e94eee022c6e35f9fb21f7fd8519d5589995306395a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 62a038206ec1e3842a1b4df5c42cd6ce3fc8010d80d036c31b7137d0d7b0d47a
[INFO] running `Command { std: "docker" "start" "-a" "62a038206ec1e3842a1b4df5c42cd6ce3fc8010d80d036c31b7137d0d7b0d47a", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking regex-syntax v0.8.10
[INFO] [stderr]     Checking unicode-ident v1.0.24
[INFO] [stderr]     Checking hashbrown v0.17.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]     Checking vob v3.0.6
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking indexmap v2.14.0
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]     Checking cfgrammar v0.14.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `MarkMapIter` is never constructed
[INFO] [stdout]    --> src/lib/markmap.rs:505:12
[INFO] [stdout]     |
[INFO] [stdout] 505 | pub struct MarkMapIter<K, V> {
[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 `cfgrammar` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `MarkMapIter` is never constructed
[INFO] [stdout]    --> src/lib/markmap.rs:505:12
[INFO] [stdout]     |
[INFO] [stdout] 505 | pub struct MarkMapIter<K, V> {
[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 `cfgrammar` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "62a038206ec1e3842a1b4df5c42cd6ce3fc8010d80d036c31b7137d0d7b0d47a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62a038206ec1e3842a1b4df5c42cd6ce3fc8010d80d036c31b7137d0d7b0d47a", kill_on_drop: false }`
[INFO] [stdout] 62a038206ec1e3842a1b4df5c42cd6ce3fc8010d80d036c31b7137d0d7b0d47a
