[INFO] cloning repository https://github.com/raiker/persistent-rope [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raiker/persistent-rope" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraiker%2Fpersistent-rope", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraiker%2Fpersistent-rope'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7f638488c32998e1683a0a3ba8de4846c9a5dee7 [INFO] checking raiker/persistent-rope against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraiker%2Fpersistent-rope" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/raiker/persistent-rope on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/raiker/persistent-rope [INFO] finished tweaking git repo https://github.com/raiker/persistent-rope [INFO] tweaked toml for git repo https://github.com/raiker/persistent-rope written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/raiker/persistent-rope already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a25e5d4bf8aabc0d0cc4a5f02cdae98eb6c9afa8e0896fdce5abd7c4205e7e4f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a25e5d4bf8aabc0d0cc4a5f02cdae98eb6c9afa8e0896fdce5abd7c4205e7e4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a25e5d4bf8aabc0d0cc4a5f02cdae98eb6c9afa8e0896fdce5abd7c4205e7e4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a25e5d4bf8aabc0d0cc4a5f02cdae98eb6c9afa8e0896fdce5abd7c4205e7e4f", kill_on_drop: false }` [INFO] [stdout] a25e5d4bf8aabc0d0cc4a5f02cdae98eb6c9afa8e0896fdce5abd7c4205e7e4f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0ebdbcef8bcf0ac4a499f4e7c9e16bdac05c75ef543a769638d59fe32d03a8ae [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0ebdbcef8bcf0ac4a499f4e7c9e16bdac05c75ef543a769638d59fe32d03a8ae", kill_on_drop: false }` [INFO] [stderr] Checking persistent-rope v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `parent` [INFO] [stdout] --> src/main.rs:141:69 [INFO] [stdout] | [INFO] [stdout] 141 | ... &Rc>>, parent: Option<&Rc>>>) -> InsertionResultRecursion{ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `RcSliceableString` [INFO] [stdout] --> src/rcstr.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct RcSliceableString { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/rcstr.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn new(s: String) -> RcSliceableString { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `slice` [INFO] [stdout] --> src/rcstr.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn slice(&self, start: usize, len: usize) -> RcSliceableString { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_str` [INFO] [stdout] --> src/rcstr.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn as_str(&self) -> &str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parent` [INFO] [stdout] --> src/main.rs:141:69 [INFO] [stdout] | [INFO] [stdout] 141 | ... &Rc>>, parent: Option<&Rc>>>) -> InsertionResultRecursion{ [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.97s [INFO] running `Command { std: "docker" "inspect" "0ebdbcef8bcf0ac4a499f4e7c9e16bdac05c75ef543a769638d59fe32d03a8ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ebdbcef8bcf0ac4a499f4e7c9e16bdac05c75ef543a769638d59fe32d03a8ae", kill_on_drop: false }` [INFO] [stdout] 0ebdbcef8bcf0ac4a499f4e7c9e16bdac05c75ef543a769638d59fe32d03a8ae