[INFO] fetching crate welder 0.3.0...
[INFO] testing welder-0.3.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate welder 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate welder 0.3.0 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 welder 0.3.0
[INFO] finished tweaking crates.io crate welder 0.3.0
[INFO] tweaked toml for crates.io crate welder 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 5d78a637d70a36a3138a4d5ea6a61f0a2bc8b1b05237cac3b34c271b0a6a7974
[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" "5d78a637d70a36a3138a4d5ea6a61f0a2bc8b1b05237cac3b34c271b0a6a7974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d78a637d70a36a3138a4d5ea6a61f0a2bc8b1b05237cac3b34c271b0a6a7974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d78a637d70a36a3138a4d5ea6a61f0a2bc8b1b05237cac3b34c271b0a6a7974", kill_on_drop: false }`
[INFO] [stdout] 5d78a637d70a36a3138a4d5ea6a61f0a2bc8b1b05237cac3b34c271b0a6a7974
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 3eae5e939a68f22b3380d241a1eb1445d10babcdfd1babbe707a573eedf96556
[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" "3eae5e939a68f22b3380d241a1eb1445d10babcdfd1babbe707a573eedf96556", kill_on_drop: false }`
[INFO] [stderr]    Compiling welder v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "3eae5e939a68f22b3380d241a1eb1445d10babcdfd1babbe707a573eedf96556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eae5e939a68f22b3380d241a1eb1445d10babcdfd1babbe707a573eedf96556", kill_on_drop: false }`
[INFO] [stdout] 3eae5e939a68f22b3380d241a1eb1445d10babcdfd1babbe707a573eedf96556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6cb59e1fc3a6f22f000150be342d522ed8fc8efcbce1fe0e6bbac4c62caca705
[INFO] running `Command { std: "docker" "start" "-a" "6cb59e1fc3a6f22f000150be342d522ed8fc8efcbce1fe0e6bbac4c62caca705", kill_on_drop: false }`
[INFO] [stderr]    Compiling welder v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "6cb59e1fc3a6f22f000150be342d522ed8fc8efcbce1fe0e6bbac4c62caca705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb59e1fc3a6f22f000150be342d522ed8fc8efcbce1fe0e6bbac4c62caca705", kill_on_drop: false }`
[INFO] [stdout] 6cb59e1fc3a6f22f000150be342d522ed8fc8efcbce1fe0e6bbac4c62caca705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 01e34e20cc2e3e2b8fbe0bcd56da4089146f82df34c4ab6c5b182bcf48fbb5fa
[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" "01e34e20cc2e3e2b8fbe0bcd56da4089146f82df34c4ab6c5b182bcf48fbb5fa", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/welder-5a8d5622debe2318)
[INFO] [stdout] test tests::string_welder_chain ... ok
[INFO] [stdout] test tests::string_welder ... ok
[INFO] [stdout] test tests::string_welder_from_base ... ok
[INFO] [stdout] test tests::string_welder_multiple ... ok
[INFO] [stdout] test tests::vec_welder_chain ... ok
[INFO] [stdout] test tests::vec_welder_multiple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests welder
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elem (line 160) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elems_no_glue (line 130) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elem_glue_left (line 256) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::new (line 45) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::weld (line 88) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::with_start (line 65) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elems_glue_right (line 230) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elem_no_glue (line 107) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elems_glue_both (line 330) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elem_glue_right (line 206) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elem_glue_both (line 305) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elems (line 184) ... ok
[INFO] [stdout] test src/lib.rs - Welder<G,T>::elems_glue_left (line 280) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01e34e20cc2e3e2b8fbe0bcd56da4089146f82df34c4ab6c5b182bcf48fbb5fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e34e20cc2e3e2b8fbe0bcd56da4089146f82df34c4ab6c5b182bcf48fbb5fa", kill_on_drop: false }`
[INFO] [stdout] 01e34e20cc2e3e2b8fbe0bcd56da4089146f82df34c4ab6c5b182bcf48fbb5fa