[INFO] cloning repository https://github.com/wulymammoth/rust-dsa [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wulymammoth/rust-dsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwulymammoth%2Frust-dsa", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwulymammoth%2Frust-dsa'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 18dc14395e5425565561f35f818a7520132947b8 [INFO] checking wulymammoth/rust-dsa against try#e251c42c969d6f8dbaae00e1028489c3a29f8789 for pr-94081 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwulymammoth%2Frust-dsa" "/workspace/builds/worker-116/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wulymammoth/rust-dsa on toolchain e251c42c969d6f8dbaae00e1028489c3a29f8789 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wulymammoth/rust-dsa [INFO] finished tweaking git repo https://github.com/wulymammoth/rust-dsa [INFO] tweaked toml for git repo https://github.com/wulymammoth/rust-dsa written to /workspace/builds/worker-116/source/Cargo.toml [INFO] crate git repo https://github.com/wulymammoth/rust-dsa already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "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-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9bb6ae9a9d2fd6dd696476b44e01deead50b0080a1faed986d93c2a0a53040c3 [INFO] running `Command { std: "docker" "start" "-a" "9bb6ae9a9d2fd6dd696476b44e01deead50b0080a1faed986d93c2a0a53040c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9bb6ae9a9d2fd6dd696476b44e01deead50b0080a1faed986d93c2a0a53040c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9bb6ae9a9d2fd6dd696476b44e01deead50b0080a1faed986d93c2a0a53040c3", kill_on_drop: false }` [INFO] [stdout] 9bb6ae9a9d2fd6dd696476b44e01deead50b0080a1faed986d93c2a0a53040c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8c2a8992e7321f17878999d0d9141ed6be3f47cebcab714b7ee0f710051c5f5b [INFO] running `Command { std: "docker" "start" "-a" "8c2a8992e7321f17878999d0d9141ed6be3f47cebcab714b7ee0f710051c5f5b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking rust-dsa v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/data_structures/queue.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | &self.data.push_back(item); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 16 | let _ = &self.data.push_back(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/data_structures/queue.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | &self.data.push_back(item); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 16 | let _ = &self.data.push_back(item); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.61s [INFO] running `Command { std: "docker" "inspect" "8c2a8992e7321f17878999d0d9141ed6be3f47cebcab714b7ee0f710051c5f5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c2a8992e7321f17878999d0d9141ed6be3f47cebcab714b7ee0f710051c5f5b", kill_on_drop: false }` [INFO] [stdout] 8c2a8992e7321f17878999d0d9141ed6be3f47cebcab714b7ee0f710051c5f5b