[INFO] fetching crate concat_strs_impl 1.0.1...
[INFO] testing concat_strs_impl-1.0.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate concat_strs_impl 1.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate concat_strs_impl 1.0.1 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 concat_strs_impl 1.0.1
[INFO] finished tweaking crates.io crate concat_strs_impl 1.0.1
[INFO] tweaked toml for crates.io crate concat_strs_impl 1.0.1 written to /workspace/builds/worker-12/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 5fc42fcb3283f0e7f97fffbc6523a7fad7ecf29edba3c503e3b8caf8f3283c8b
[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" "5fc42fcb3283f0e7f97fffbc6523a7fad7ecf29edba3c503e3b8caf8f3283c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fc42fcb3283f0e7f97fffbc6523a7fad7ecf29edba3c503e3b8caf8f3283c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc42fcb3283f0e7f97fffbc6523a7fad7ecf29edba3c503e3b8caf8f3283c8b", kill_on_drop: false }`
[INFO] [stdout] 5fc42fcb3283f0e7f97fffbc6523a7fad7ecf29edba3c503e3b8caf8f3283c8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] bfd34ccedc2cf5d8bcba62eb2ace7f3804e2ce6abc29b0ee855c72acdb4bb00e
[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" "bfd34ccedc2cf5d8bcba62eb2ace7f3804e2ce6abc29b0ee855c72acdb4bb00e", kill_on_drop: false }`
[INFO] [stderr]    Compiling concat_strs_impl v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "bfd34ccedc2cf5d8bcba62eb2ace7f3804e2ce6abc29b0ee855c72acdb4bb00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfd34ccedc2cf5d8bcba62eb2ace7f3804e2ce6abc29b0ee855c72acdb4bb00e", kill_on_drop: false }`
[INFO] [stdout] bfd34ccedc2cf5d8bcba62eb2ace7f3804e2ce6abc29b0ee855c72acdb4bb00e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 9da4d432654fbdf56ed785f1ad32d28e892e0bbaa995ae6179c4ea7ee0672956
[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" "9da4d432654fbdf56ed785f1ad32d28e892e0bbaa995ae6179c4ea7ee0672956", kill_on_drop: false }`
[INFO] [stderr]    Compiling concat_strs_impl v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "9da4d432654fbdf56ed785f1ad32d28e892e0bbaa995ae6179c4ea7ee0672956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da4d432654fbdf56ed785f1ad32d28e892e0bbaa995ae6179c4ea7ee0672956", kill_on_drop: false }`
[INFO] [stdout] 9da4d432654fbdf56ed785f1ad32d28e892e0bbaa995ae6179c4ea7ee0672956
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] c12a76be2ebe5be02b5cfcc01b56ea0c8f2f5bcbd25503742ca2df56a5515063
[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" "c12a76be2ebe5be02b5cfcc01b56ea0c8f2f5bcbd25503742ca2df56a5515063", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/concat_strs_impl-26f4c441fb4402a7)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests concat_strs_impl
[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] [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" "c12a76be2ebe5be02b5cfcc01b56ea0c8f2f5bcbd25503742ca2df56a5515063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c12a76be2ebe5be02b5cfcc01b56ea0c8f2f5bcbd25503742ca2df56a5515063", kill_on_drop: false }`
[INFO] [stdout] c12a76be2ebe5be02b5cfcc01b56ea0c8f2f5bcbd25503742ca2df56a5515063