[INFO] fetching crate single-digit-rpn 0.1.0...
[INFO] testing single-digit-rpn-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate single-digit-rpn 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate single-digit-rpn 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate single-digit-rpn 0.1.0
[INFO] finished tweaking crates.io crate single-digit-rpn 0.1.0
[INFO] tweaked toml for crates.io crate single-digit-rpn 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate single-digit-rpn 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cfe756fafe355ea7248068aa638c98fe2fc6ffdcc6a645c33420895291919935
[INFO] running `Command { std: "docker" "start" "-a" "cfe756fafe355ea7248068aa638c98fe2fc6ffdcc6a645c33420895291919935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfe756fafe355ea7248068aa638c98fe2fc6ffdcc6a645c33420895291919935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe756fafe355ea7248068aa638c98fe2fc6ffdcc6a645c33420895291919935", kill_on_drop: false }`
[INFO] [stdout] cfe756fafe355ea7248068aa638c98fe2fc6ffdcc6a645c33420895291919935
[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=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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f57c33d6e1d8377078f0dc3990bc32812a858d0cd3a3f74d16880a0b1a14ff6
[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" "3f57c33d6e1d8377078f0dc3990bc32812a858d0cd3a3f74d16880a0b1a14ff6", kill_on_drop: false }`
[INFO] [stderr]    Compiling single-digit-rpn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "3f57c33d6e1d8377078f0dc3990bc32812a858d0cd3a3f74d16880a0b1a14ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f57c33d6e1d8377078f0dc3990bc32812a858d0cd3a3f74d16880a0b1a14ff6", kill_on_drop: false }`
[INFO] [stdout] 3f57c33d6e1d8377078f0dc3990bc32812a858d0cd3a3f74d16880a0b1a14ff6
[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=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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ad4868082532ddb70c54fbf82940b39f28315adacad38f4733ae93e942e50695
[INFO] running `Command { std: "docker" "start" "-a" "ad4868082532ddb70c54fbf82940b39f28315adacad38f4733ae93e942e50695", kill_on_drop: false }`
[INFO] [stderr]    Compiling single-digit-rpn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "ad4868082532ddb70c54fbf82940b39f28315adacad38f4733ae93e942e50695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad4868082532ddb70c54fbf82940b39f28315adacad38f4733ae93e942e50695", kill_on_drop: false }`
[INFO] [stdout] ad4868082532ddb70c54fbf82940b39f28315adacad38f4733ae93e942e50695
[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=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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 80815a96f2241f7ac0cd3b73b541ea0561c04514b96bf61c0b34c9684bfd038e
[INFO] running `Command { std: "docker" "start" "-a" "80815a96f2241f7ac0cd3b73b541ea0561c04514b96bf61c0b34c9684bfd038e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 5 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/single_digit_rpn-28c706d3ebeba4b6)
[INFO] [stdout] test operator::tests::test_exec ... ok
[INFO] [stdout] test tests::test_rpn ... ok
[INFO] [stdout] test ast::tests::test_evaluate ... ok
[INFO] [stdout] test tokenizer::tests::test_tokenize ... ok
[INFO] [stdout] test parser::tests::test_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests single-digit-rpn
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - rpn (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "80815a96f2241f7ac0cd3b73b541ea0561c04514b96bf61c0b34c9684bfd038e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80815a96f2241f7ac0cd3b73b541ea0561c04514b96bf61c0b34c9684bfd038e", kill_on_drop: false }`
[INFO] [stdout] 80815a96f2241f7ac0cd3b73b541ea0561c04514b96bf61c0b34c9684bfd038e