[INFO] cloning repository https://github.com/mozilla/hglib-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mozilla/hglib-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla%2Fhglib-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla%2Fhglib-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddcdecf98a60bb29557a339cbbb248542d3c6bfc
[INFO] building mozilla/hglib-rust against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla%2Fhglib-rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mozilla/hglib-rust on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mozilla/hglib-rust
[INFO] finished tweaking git repo https://github.com/mozilla/hglib-rust
[INFO] tweaked toml for git repo https://github.com/mozilla/hglib-rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mozilla/hglib-rust 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Downloading crates ...
[INFO] [stderr] Downloaded subprocess v0.1.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a9fc7ab514d1b0998987f9497af7f8a4277e94606618a4bdb5c743e7ffdf5b7
[INFO] running `Command { std: "docker" "start" "-a" "7a9fc7ab514d1b0998987f9497af7f8a4277e94606618a4bdb5c743e7ffdf5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a9fc7ab514d1b0998987f9497af7f8a4277e94606618a4bdb5c743e7ffdf5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a9fc7ab514d1b0998987f9497af7f8a4277e94606618a4bdb5c743e7ffdf5b7", kill_on_drop: false }`
[INFO] [stdout] 7a9fc7ab514d1b0998987f9497af7f8a4277e94606618a4bdb5c743e7ffdf5b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c38a770010fc7ad0caacd644ec43dbb56c706a0f30a7e9d3e1b06313c0c12444
[INFO] running `Command { std: "docker" "start" "-a" "c38a770010fc7ad0caacd644ec43dbb56c706a0f30a7e9d3e1b06313c0c12444", kill_on_drop: false }`
[INFO] [stderr] Compiling autocfg v1.0.0
[INFO] [stderr] Compiling libc v0.2.69
[INFO] [stderr] Compiling memchr v2.3.3
[INFO] [stderr] Compiling lazy_static v1.4.0
[INFO] [stderr] Compiling byteorder v1.3.4
[INFO] [stderr] Compiling regex-syntax v0.6.17
[INFO] [stderr] Compiling thread_local v1.0.1
[INFO] [stderr] Compiling num-traits v0.2.11
[INFO] [stderr] Compiling num-integer v0.1.42
[INFO] [stderr] Compiling aho-corasick v0.7.10
[INFO] [stderr] Compiling time v0.1.43
[INFO] [stderr] Compiling subprocess v0.1.20
[INFO] [stderr] Compiling chrono v0.4.11
[INFO] [stderr] Compiling regex v1.3.7
[INFO] [stderr] Compiling hglib-rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `msg` is never read
[INFO] [stdout] --> src/client.rs:46:5
[INFO] [stdout] |
[INFO] [stdout] 43 | pub struct HglibError {
[INFO] [stdout] | ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 46 | msg: String,
[INFO] [stdout] | ^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `HglibError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout] --> src/commands/annotate.rs:94:22
[INFO] [stdout] |
[INFO] [stdout] 94 | pub fn next_line(&mut self) -> Result