[INFO] cloning repository https://github.com/tsych0/cf_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsych0/cf_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fcf_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fcf_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0115a203a307208b5078e6cf734dfbcf79cdd596 [INFO] checking tsych0/cf_rust against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fcf_rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tsych0/cf_rust on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tsych0/cf_rust [INFO] finished tweaking git repo https://github.com/tsych0/cf_rust [INFO] tweaked toml for git repo https://github.com/tsych0/cf_rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/tsych0/cf_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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 13c120d871baf4785108d8f8fe6b5ce43eb94bd11a3bf0f7d4781a00f3161dac [INFO] running `Command { std: "docker" "start" "-a" "13c120d871baf4785108d8f8fe6b5ce43eb94bd11a3bf0f7d4781a00f3161dac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "13c120d871baf4785108d8f8fe6b5ce43eb94bd11a3bf0f7d4781a00f3161dac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "13c120d871baf4785108d8f8fe6b5ce43eb94bd11a3bf0f7d4781a00f3161dac", kill_on_drop: false }` [INFO] [stdout] 13c120d871baf4785108d8f8fe6b5ce43eb94bd11a3bf0f7d4781a00f3161dac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 95bea761b8ab1c942636460a6710abf64cc0812a93615f1f3b10a2bf4475228f [INFO] running `Command { std: "docker" "start" "-a" "95bea761b8ab1c942636460a6710abf64cc0812a93615f1f3b10a2bf4475228f", kill_on_drop: false }` [INFO] [stderr] Checking cp_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `n` is never read [INFO] [stdout] --> src/binary_lifting.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct BinaryLifting { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 6 | n: usize, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `n` is never read [INFO] [stdout] --> src/binary_lifting.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct BinaryLifting { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 6 | n: usize, [INFO] [stdout] | ^ [INFO] [stdout] | [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/itertools.rs:128:26 [INFO] [stdout] | [INFO] [stdout] 128 | fn take_while_ref

(&mut self, predicate: P) -> TakeWhileRef [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] 128 | fn take_while_ref

(&mut self, predicate: P) -> TakeWhileRef<'_, Self, P> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/itertools.rs:128:26 [INFO] [stdout] | [INFO] [stdout] 128 | fn take_while_ref

(&mut self, predicate: P) -> TakeWhileRef [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] 128 | fn take_while_ref

(&mut self, predicate: P) -> TakeWhileRef<'_, Self, P> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.00s [INFO] running `Command { std: "docker" "inspect" "95bea761b8ab1c942636460a6710abf64cc0812a93615f1f3b10a2bf4475228f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95bea761b8ab1c942636460a6710abf64cc0812a93615f1f3b10a2bf4475228f", kill_on_drop: false }` [INFO] [stdout] 95bea761b8ab1c942636460a6710abf64cc0812a93615f1f3b10a2bf4475228f