[INFO] cloning repository https://github.com/ddmngz/rust-copy-update [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ddmngz/rust-copy-update" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddmngz%2Frust-copy-update", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddmngz%2Frust-copy-update'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 337486519b07b8ad2396211e6f326016a6abb6bb [INFO] checking ddmngz/rust-copy-update against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddmngz%2Frust-copy-update" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/ddmngz/rust-copy-update [INFO] finished tweaking git repo https://github.com/ddmngz/rust-copy-update [INFO] tweaked toml for git repo https://github.com/ddmngz/rust-copy-update written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ddmngz/rust-copy-update on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ddmngz/rust-copy-update 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1023a843ecff706412f4fc9d2b28fc8a4c3bb385c630acd00b9c24d87fffe589 [INFO] running `Command { std: "docker" "start" "-a" "1023a843ecff706412f4fc9d2b28fc8a4c3bb385c630acd00b9c24d87fffe589", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1023a843ecff706412f4fc9d2b28fc8a4c3bb385c630acd00b9c24d87fffe589", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1023a843ecff706412f4fc9d2b28fc8a4c3bb385c630acd00b9c24d87fffe589", kill_on_drop: false }` [INFO] [stdout] 1023a843ecff706412f4fc9d2b28fc8a4c3bb385c630acd00b9c24d87fffe589 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a6c94c80c59e9c92a8138a0aa32defe824dce9241647b4729ad965d9320b8cbd [INFO] running `Command { std: "docker" "start" "-a" "a6c94c80c59e9c92a8138a0aa32defe824dce9241647b4729ad965d9320b8cbd", kill_on_drop: false }` [INFO] [stderr] Checking rcu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait `RcuWriteGuard<'a, T>` is more private than the item `Rcu::WriteGuard` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | type WriteGuard: RcuWriteGuard<'a, T>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated type `Rcu::WriteGuard` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but trait `RcuWriteGuard<'a, T>` is only usable at visibility `pub(crate)` [INFO] [stdout] --> src/lib.rs:22:1 [INFO] [stdout] | [INFO] [stdout] 22 | trait RcuWriteGuard<'a, T: Sync + 'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_bounds)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/evil_rcu.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 35 | impl<'a, T: Sync + 'a> EvilRcu { [INFO] [stdout] | --------------------------------- associated function in this implementation [INFO] [stdout] 36 | fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/evil_rcu.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 54 | impl EvilRcuInner { [INFO] [stdout] | ----------------------------- associated function in this implementation [INFO] [stdout] 55 | fn new(data: Arc) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/evil_rcu.rs:26:15 [INFO] [stdout] | [INFO] [stdout] 26 | fn write(&'a self) -> EvilWriteGuard { [INFO] [stdout] | ^^ ----------------- the lifetime gets resolved as `'a` [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 consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 26 | fn write(&'a self) -> EvilWriteGuard<'a, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `RcuWriteGuard<'a, T>` is more private than the item `Rcu::WriteGuard` [INFO] [stdout] --> src/lib.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | type WriteGuard: RcuWriteGuard<'a, T>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ associated type `Rcu::WriteGuard` is reachable at visibility `pub` [INFO] [stdout] | [INFO] [stdout] note: but trait `RcuWriteGuard<'a, T>` is only usable at visibility `pub(crate)` [INFO] [stdout] --> src/lib.rs:22:1 [INFO] [stdout] | [INFO] [stdout] 22 | trait RcuWriteGuard<'a, T: Sync + 'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(private_bounds)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/evil_rcu.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 35 | impl<'a, T: Sync + 'a> EvilRcu { [INFO] [stdout] | --------------------------------- associated function in this implementation [INFO] [stdout] 36 | fn new(data: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/evil_rcu.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 54 | impl EvilRcuInner { [INFO] [stdout] | ----------------------------- associated function in this implementation [INFO] [stdout] 55 | fn new(data: Arc) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/evil_rcu.rs:26:15 [INFO] [stdout] | [INFO] [stdout] 26 | fn write(&'a self) -> EvilWriteGuard { [INFO] [stdout] | ^^ ----------------- the lifetime gets resolved as `'a` [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 consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 26 | fn write(&'a self) -> EvilWriteGuard<'a, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] running `Command { std: "docker" "inspect" "a6c94c80c59e9c92a8138a0aa32defe824dce9241647b4729ad965d9320b8cbd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6c94c80c59e9c92a8138a0aa32defe824dce9241647b4729ad965d9320b8cbd", kill_on_drop: false }` [INFO] [stdout] a6c94c80c59e9c92a8138a0aa32defe824dce9241647b4729ad965d9320b8cbd