[INFO] cloning repository https://github.com/etch1000/reference_counting [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/etch1000/reference_counting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fetch1000%2Freference_counting", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fetch1000%2Freference_counting'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8bd41678c3b47c6b9095b222f43976b20bfde4ba [INFO] testing etch1000/reference_counting against master#b03b3a7ec92682be2917540b679478d41c95a30c for pr-137122-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fetch1000%2Freference_counting" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/etch1000/reference_counting [INFO] finished tweaking git repo https://github.com/etch1000/reference_counting [INFO] tweaked toml for git repo https://github.com/etch1000/reference_counting written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/etch1000/reference_counting on toolchain b03b3a7ec92682be2917540b679478d41c95a30c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/etch1000/reference_counting 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" "+b03b3a7ec92682be2917540b679478d41c95a30c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a595c5c0e4980bef76f7178630d1293f403b314842e577036d32bea06f34e804 [INFO] running `Command { std: "docker" "start" "-a" "a595c5c0e4980bef76f7178630d1293f403b314842e577036d32bea06f34e804", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a595c5c0e4980bef76f7178630d1293f403b314842e577036d32bea06f34e804", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a595c5c0e4980bef76f7178630d1293f403b314842e577036d32bea06f34e804", kill_on_drop: false }` [INFO] [stdout] a595c5c0e4980bef76f7178630d1293f403b314842e577036d32bea06f34e804 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2441ccc053b600d7689ab46eedefca0b008afc7309114e37f31bba9061ec25fc [INFO] running `Command { std: "docker" "start" "-a" "2441ccc053b600d7689ab46eedefca0b008afc7309114e37f31bba9061ec25fc", kill_on_drop: false }` [INFO] [stderr] Compiling reference_counting v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 9 | Cons(i32, RefCell>), [INFO] [stdout] | ---- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field 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 field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 9 - Cons(i32, RefCell>), [INFO] [stdout] 9 + Cons((), RefCell>), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s [INFO] running `Command { std: "docker" "inspect" "2441ccc053b600d7689ab46eedefca0b008afc7309114e37f31bba9061ec25fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2441ccc053b600d7689ab46eedefca0b008afc7309114e37f31bba9061ec25fc", kill_on_drop: false }` [INFO] [stdout] 2441ccc053b600d7689ab46eedefca0b008afc7309114e37f31bba9061ec25fc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f67832ca564e49216b85782137d83f08109464a796d50a11f099d409aa999025 [INFO] running `Command { std: "docker" "start" "-a" "f67832ca564e49216b85782137d83f08109464a796d50a11f099d409aa999025", kill_on_drop: false }` [INFO] [stderr] Compiling reference_counting v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 9 | Cons(i32, RefCell>), [INFO] [stdout] | ---- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field 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 field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 9 - Cons(i32, RefCell>), [INFO] [stdout] 9 + Cons((), RefCell>), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s [INFO] running `Command { std: "docker" "inspect" "f67832ca564e49216b85782137d83f08109464a796d50a11f099d409aa999025", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f67832ca564e49216b85782137d83f08109464a796d50a11f099d409aa999025", kill_on_drop: false }` [INFO] [stdout] f67832ca564e49216b85782137d83f08109464a796d50a11f099d409aa999025 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 068f3cd45be3782bab892503923a96ff44da1ea8236beff721f7742447c07bd5 [INFO] running `Command { std: "docker" "start" "-a" "068f3cd45be3782bab892503923a96ff44da1ea8236beff721f7742447c07bd5", kill_on_drop: false }` [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/main.rs:9:10 [INFO] [stderr] | [INFO] [stderr] 9 | Cons(i32, RefCell>), [INFO] [stderr] | ---- ^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 9 - Cons(i32, RefCell>), [INFO] [stderr] 9 + Cons((), RefCell>), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `reference_counting` (bin "reference_counting" test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/reference_counting-f8da07786d8b7c28) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::send_75_percent_warning ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "068f3cd45be3782bab892503923a96ff44da1ea8236beff721f7742447c07bd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "068f3cd45be3782bab892503923a96ff44da1ea8236beff721f7742447c07bd5", kill_on_drop: false }` [INFO] [stdout] 068f3cd45be3782bab892503923a96ff44da1ea8236beff721f7742447c07bd5