[INFO] cloning repository https://github.com/alexmailo/stack [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexmailo/stack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexmailo%2Fstack", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexmailo%2Fstack'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6215f69ead6a8d866279f9d45007ea72922c5e00 [INFO] testing alexmailo/stack against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexmailo%2Fstack" "/workspace/builds/worker-92/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-92/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/alexmailo/stack on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/alexmailo/stack [INFO] finished tweaking git repo https://github.com/alexmailo/stack [INFO] tweaked toml for git repo https://github.com/alexmailo/stack written to /workspace/builds/worker-92/source/Cargo.toml [INFO] crate git repo https://github.com/alexmailo/stack already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 15e27cb7e0abbda8a137c39e28d92531c148a8482a32ebce7b7448cbfb9b1da7 [INFO] running `Command { std: "docker" "start" "-a" "15e27cb7e0abbda8a137c39e28d92531c148a8482a32ebce7b7448cbfb9b1da7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15e27cb7e0abbda8a137c39e28d92531c148a8482a32ebce7b7448cbfb9b1da7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15e27cb7e0abbda8a137c39e28d92531c148a8482a32ebce7b7448cbfb9b1da7", kill_on_drop: false }` [INFO] [stdout] 15e27cb7e0abbda8a137c39e28d92531c148a8482a32ebce7b7448cbfb9b1da7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d83d33199bb92569cde9b6be40561df2884bb1d15b26cc0f2ef95da198ef3123 [INFO] running `Command { std: "docker" "start" "-a" "d83d33199bb92569cde9b6be40561df2884bb1d15b26cc0f2ef95da198ef3123", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling stack v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: cannot borrow `stack` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:68:21 [INFO] [stdout] | [INFO] [stdout] 67 | if let Some(value) = stack.peek() { [INFO] [stdout] | ------------ immutable borrow occurs here [INFO] [stdout] 68 | stack.push(*value); [INFO] [stdout] | ^^^^^^^^^^^------^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.64s [INFO] running `Command { std: "docker" "inspect" "d83d33199bb92569cde9b6be40561df2884bb1d15b26cc0f2ef95da198ef3123", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d83d33199bb92569cde9b6be40561df2884bb1d15b26cc0f2ef95da198ef3123", kill_on_drop: false }` [INFO] [stdout] d83d33199bb92569cde9b6be40561df2884bb1d15b26cc0f2ef95da198ef3123 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3162bd21cf93e7aab52fa0e0c27498f96ec9e034d35d5fa926470ce80a192d43 [INFO] running `Command { std: "docker" "start" "-a" "3162bd21cf93e7aab52fa0e0c27498f96ec9e034d35d5fa926470ce80a192d43", kill_on_drop: false }` [INFO] [stderr] Compiling stack v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: cannot borrow `stack` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:68:21 [INFO] [stdout] | [INFO] [stdout] 67 | if let Some(value) = stack.peek() { [INFO] [stdout] | ------------ immutable borrow occurs here [INFO] [stdout] 68 | stack.push(*value); [INFO] [stdout] | ^^^^^^^^^^^------^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.38s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/stack-f972a063901c5d16) [INFO] running `Command { std: "docker" "inspect" "3162bd21cf93e7aab52fa0e0c27498f96ec9e034d35d5fa926470ce80a192d43", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3162bd21cf93e7aab52fa0e0c27498f96ec9e034d35d5fa926470ce80a192d43", kill_on_drop: false }` [INFO] [stdout] 3162bd21cf93e7aab52fa0e0c27498f96ec9e034d35d5fa926470ce80a192d43 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e8d20279c4e56d3610e0669bd8035d1dbc957c0cde8697120d8abc889ca7ca55 [INFO] running `Command { std: "docker" "start" "-a" "e8d20279c4e56d3610e0669bd8035d1dbc957c0cde8697120d8abc889ca7ca55", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: cannot borrow `stack` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/main.rs:68:21 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] running 0 tests [INFO] [stderr] 67 | if let Some(value) = stack.peek() { [INFO] [stdout] [INFO] [stderr] | ------------ immutable borrow occurs here [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 68 | stack.push(*value); [INFO] [stdout] [INFO] [stderr] | ^^^^^^^^^^^------^ [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow later used here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: `stack` (bin "stack" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 13.89s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/stack-f972a063901c5d16) [INFO] running `Command { std: "docker" "inspect" "e8d20279c4e56d3610e0669bd8035d1dbc957c0cde8697120d8abc889ca7ca55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8d20279c4e56d3610e0669bd8035d1dbc957c0cde8697120d8abc889ca7ca55", kill_on_drop: false }` [INFO] [stdout] e8d20279c4e56d3610e0669bd8035d1dbc957c0cde8697120d8abc889ca7ca55