[INFO] fetching crate ruwren 0.4.1...
[INFO] testing ruwren-0.4.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ruwren 0.4.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ruwren 0.4.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruwren 0.4.1
[INFO] finished tweaking crates.io crate ruwren 0.4.1
[INFO] tweaked toml for crates.io crate ruwren 0.4.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate ruwren 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff29ae5156dc842d527d5ccfb6d907342994a93ff537827a3126e5044eb2bda5
[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" "ff29ae5156dc842d527d5ccfb6d907342994a93ff537827a3126e5044eb2bda5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff29ae5156dc842d527d5ccfb6d907342994a93ff537827a3126e5044eb2bda5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff29ae5156dc842d527d5ccfb6d907342994a93ff537827a3126e5044eb2bda5", kill_on_drop: false }`
[INFO] [stdout] ff29ae5156dc842d527d5ccfb6d907342994a93ff537827a3126e5044eb2bda5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--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] 00cbc899a8b972c19b46cc46164d26fee4eb44abba798d8472e2fb9dfcb07fc1
[INFO] running `Command { std: "docker" "start" "-a" "00cbc899a8b972c19b46cc46164d26fee4eb44abba798d8472e2fb9dfcb07fc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling bindgen v0.54.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling ruwren-sys v0.4.0
[INFO] [stderr]    Compiling ruwren v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.36s
[INFO] running `Command { std: "docker" "inspect" "00cbc899a8b972c19b46cc46164d26fee4eb44abba798d8472e2fb9dfcb07fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00cbc899a8b972c19b46cc46164d26fee4eb44abba798d8472e2fb9dfcb07fc1", kill_on_drop: false }`
[INFO] [stdout] 00cbc899a8b972c19b46cc46164d26fee4eb44abba798d8472e2fb9dfcb07fc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a4b1c58987781066ab460cbb205919ac105dab58bb69114ea8eade0651d3be6
[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" "4a4b1c58987781066ab460cbb205919ac105dab58bb69114ea8eade0651d3be6", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling oorandom v11.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling criterion-plot v0.4.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling criterion v0.3.2
[INFO] [stderr]    Compiling ruwren v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 42.79s
[INFO] running `Command { std: "docker" "inspect" "4a4b1c58987781066ab460cbb205919ac105dab58bb69114ea8eade0651d3be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a4b1c58987781066ab460cbb205919ac105dab58bb69114ea8eade0651d3be6", kill_on_drop: false }`
[INFO] [stdout] 4a4b1c58987781066ab460cbb205919ac105dab58bb69114ea8eade0651d3be6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 6d0623fb43c90d98dd630d3d564a643da5bf79bc92781b0168426f0ede77d7c6
[INFO] running `Command { std: "docker" "start" "-a" "6d0623fb43c90d98dd630d3d564a643da5bf79bc92781b0168426f0ede77d7c6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ruwren-24e79f35a17a97f8)
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_small_wren_program ... ok
[INFO] [stdout] test tests::init_vm ... ok
[INFO] [stdout] test tests::test_script_module ... ok
[INFO] [stdout] test tests::test_external_module ... ok
[INFO] [stdout] test tests::foreign_instance ... ok
[INFO] [stdout] test tests::test_small_wren_program_call ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ruwren
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6d0623fb43c90d98dd630d3d564a643da5bf79bc92781b0168426f0ede77d7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d0623fb43c90d98dd630d3d564a643da5bf79bc92781b0168426f0ede77d7c6", kill_on_drop: false }`
[INFO] [stdout] 6d0623fb43c90d98dd630d3d564a643da5bf79bc92781b0168426f0ede77d7c6