[INFO] fetching crate make_singleton 1.0.0...
[INFO] testing make_singleton-1.0.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate make_singleton 1.0.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate make_singleton 1.0.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate make_singleton 1.0.0
[INFO] finished tweaking crates.io crate make_singleton 1.0.0
[INFO] tweaked toml for crates.io crate make_singleton 1.0.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate make_singleton 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0721f8209d23ae2db0af1c0e307fdabced073fd1d1ec0b42c9acb8fbabdc9c03
[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" "0721f8209d23ae2db0af1c0e307fdabced073fd1d1ec0b42c9acb8fbabdc9c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0721f8209d23ae2db0af1c0e307fdabced073fd1d1ec0b42c9acb8fbabdc9c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0721f8209d23ae2db0af1c0e307fdabced073fd1d1ec0b42c9acb8fbabdc9c03", kill_on_drop: false }`
[INFO] [stdout] 0721f8209d23ae2db0af1c0e307fdabced073fd1d1ec0b42c9acb8fbabdc9c03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9b0b7df6e683094f48d57552e6bbd01eddafb1ee9bb0285cb2d2111633e32dc
[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" "a9b0b7df6e683094f48d57552e6bbd01eddafb1ee9bb0285cb2d2111633e32dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling make_singleton v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "a9b0b7df6e683094f48d57552e6bbd01eddafb1ee9bb0285cb2d2111633e32dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b0b7df6e683094f48d57552e6bbd01eddafb1ee9bb0285cb2d2111633e32dc", kill_on_drop: false }`
[INFO] [stdout] a9b0b7df6e683094f48d57552e6bbd01eddafb1ee9bb0285cb2d2111633e32dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d47ed08638fca50304c60c6acee439dcc2767dd7626519731e61aefd43e5ce9d
[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" "d47ed08638fca50304c60c6acee439dcc2767dd7626519731e61aefd43e5ce9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling make_singleton v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "d47ed08638fca50304c60c6acee439dcc2767dd7626519731e61aefd43e5ce9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47ed08638fca50304c60c6acee439dcc2767dd7626519731e61aefd43e5ce9d", kill_on_drop: false }`
[INFO] [stdout] d47ed08638fca50304c60c6acee439dcc2767dd7626519731e61aefd43e5ce9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8f7921166b7bc2f59d0467d1b5cebaa1618540dd0d66608934c4d410168931b1
[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" "8f7921166b7bc2f59d0467d1b5cebaa1618540dd0d66608934c4d410168931b1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/make_singleton-3082b012cb12b625
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests make_singleton
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8f7921166b7bc2f59d0467d1b5cebaa1618540dd0d66608934c4d410168931b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f7921166b7bc2f59d0467d1b5cebaa1618540dd0d66608934c4d410168931b1", kill_on_drop: false }`
[INFO] [stdout] 8f7921166b7bc2f59d0467d1b5cebaa1618540dd0d66608934c4d410168931b1
