[INFO] fetching crate coca 0.3.0... [INFO] checking coca-0.3.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate coca 0.3.0 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate coca 0.3.0 [INFO] finished tweaking crates.io crate coca 0.3.0 [INFO] tweaked toml for crates.io crate coca 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate coca 0.3.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate coca 0.3.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9580aa232339ad92912196de91606a73589359fc2cf97e4f27a2f3f235144310 [INFO] running `Command { std: "docker" "start" "-a" "9580aa232339ad92912196de91606a73589359fc2cf97e4f27a2f3f235144310", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9580aa232339ad92912196de91606a73589359fc2cf97e4f27a2f3f235144310", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9580aa232339ad92912196de91606a73589359fc2cf97e4f27a2f3f235144310", kill_on_drop: false }` [INFO] [stdout] 9580aa232339ad92912196de91606a73589359fc2cf97e4f27a2f3f235144310 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4a2f18e0a9e3201a029061922dedb05a9f945b0a5dd08a728268231064055f6e [INFO] running `Command { std: "docker" "start" "-a" "4a2f18e0a9e3201a029061922dedb05a9f945b0a5dd08a728268231064055f6e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking coca v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `docs_rs` [INFO] [stdout] --> src/lib.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | #![cfg_attr(docs_rs, feature(doc_cfg))] [INFO] [stdout] | ^^^^^^^ help: there is a config with a similar name: `docsrs` [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(docs_rs)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(docs_rs)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.6.0 [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/collections/binary_heap.rs:178:21 [INFO] [stdout] | [INFO] [stdout] 178 | pub fn peek_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 178 | pub fn peek_mut(&mut self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.0 [INFO] [stdout] warning: unexpected `cfg` condition name: `docs_rs` [INFO] [stdout] --> src/lib.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | #![cfg_attr(docs_rs, feature(doc_cfg))] [INFO] [stdout] | ^^^^^^^ help: there is a config with a similar name: `docsrs` [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(docs_rs)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(docs_rs)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` 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/collections/binary_heap.rs:178:21 [INFO] [stdout] | [INFO] [stdout] 178 | pub fn peek_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 178 | pub fn peek_mut(&mut self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.24s [INFO] running `Command { std: "docker" "inspect" "4a2f18e0a9e3201a029061922dedb05a9f945b0a5dd08a728268231064055f6e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a2f18e0a9e3201a029061922dedb05a9f945b0a5dd08a728268231064055f6e", kill_on_drop: false }` [INFO] [stdout] 4a2f18e0a9e3201a029061922dedb05a9f945b0a5dd08a728268231064055f6e