[INFO] cloning repository https://github.com/ashwinsekaran/rust_smartpointers [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ashwinsekaran/rust_smartpointers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashwinsekaran%2Frust_smartpointers", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashwinsekaran%2Frust_smartpointers'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 32ea09db5aa3749e9c7e16949e578c4438da1ce1 [INFO] checking ashwinsekaran/rust_smartpointers against master#f5d3fe273b8b9e7125bf8856d44793b6cc4b6735 for pr-139587-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashwinsekaran%2Frust_smartpointers" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ashwinsekaran/rust_smartpointers on toolchain f5d3fe273b8b9e7125bf8856d44793b6cc4b6735 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5d3fe273b8b9e7125bf8856d44793b6cc4b6735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ashwinsekaran/rust_smartpointers [INFO] finished tweaking git repo https://github.com/ashwinsekaran/rust_smartpointers [INFO] tweaked toml for git repo https://github.com/ashwinsekaran/rust_smartpointers written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ashwinsekaran/rust_smartpointers 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" "+f5d3fe273b8b9e7125bf8856d44793b6cc4b6735" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+f5d3fe273b8b9e7125bf8856d44793b6cc4b6735" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ac94954809f0364dd21aa4be854fed6b34325797184cae80a88ec1becaa5988b [INFO] running `Command { std: "docker" "start" "-a" "ac94954809f0364dd21aa4be854fed6b34325797184cae80a88ec1becaa5988b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ac94954809f0364dd21aa4be854fed6b34325797184cae80a88ec1becaa5988b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac94954809f0364dd21aa4be854fed6b34325797184cae80a88ec1becaa5988b", kill_on_drop: false }` [INFO] [stdout] ac94954809f0364dd21aa4be854fed6b34325797184cae80a88ec1becaa5988b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+f5d3fe273b8b9e7125bf8856d44793b6cc4b6735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 31faac5df55e043a7e0a2807a33ad62d9b2846d948e22a4cecb8f522a23aaf21 [INFO] running `Command { std: "docker" "start" "-a" "31faac5df55e043a7e0a2807a33ad62d9b2846d948e22a4cecb8f522a23aaf21", kill_on_drop: false }` [INFO] [stderr] Checking rust_smartpointers v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/main.rs:192:7 [INFO] [stdout] | [INFO] [stdout] 192 | Cons(Rc>,Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 192 - Cons(Rc>,Rc), [INFO] [stdout] 192 + Cons((),()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/main.rs:192:7 [INFO] [stdout] | [INFO] [stdout] 192 | Cons(Rc>,Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 192 - Cons(Rc>,Rc), [INFO] [stdout] 192 + Cons((),()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "31faac5df55e043a7e0a2807a33ad62d9b2846d948e22a4cecb8f522a23aaf21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31faac5df55e043a7e0a2807a33ad62d9b2846d948e22a4cecb8f522a23aaf21", kill_on_drop: false }` [INFO] [stdout] 31faac5df55e043a7e0a2807a33ad62d9b2846d948e22a4cecb8f522a23aaf21