[INFO] crate make_singleton 1.0.0 is already in cache
[INFO] testing make_singleton-1.0.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate make_singleton 1.0.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate make_singleton 1.0.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-11/source/Cargo.toml
[INFO] crate crates.io crate make_singleton 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93fd549f11bc2ddec2fb7a940aaeab1a1d4e6eb6c9f24b19e28a0ce9b0302993
[INFO] running `"docker" "start" "-a" "93fd549f11bc2ddec2fb7a940aaeab1a1d4e6eb6c9f24b19e28a0ce9b0302993"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling make_singleton v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "93fd549f11bc2ddec2fb7a940aaeab1a1d4e6eb6c9f24b19e28a0ce9b0302993"`
[INFO] running `"docker" "rm" "-f" "93fd549f11bc2ddec2fb7a940aaeab1a1d4e6eb6c9f24b19e28a0ce9b0302993"`
[INFO] [stdout] 93fd549f11bc2ddec2fb7a940aaeab1a1d4e6eb6c9f24b19e28a0ce9b0302993
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 57374abdd13c7dd5faa4c858ad6a50c231cd4e4310d9326871caa62c55da23dd
[INFO] running `"docker" "start" "-a" "57374abdd13c7dd5faa4c858ad6a50c231cd4e4310d9326871caa62c55da23dd"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling make_singleton v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "57374abdd13c7dd5faa4c858ad6a50c231cd4e4310d9326871caa62c55da23dd"`
[INFO] running `"docker" "rm" "-f" "57374abdd13c7dd5faa4c858ad6a50c231cd4e4310d9326871caa62c55da23dd"`
[INFO] [stdout] 57374abdd13c7dd5faa4c858ad6a50c231cd4e4310d9326871caa62c55da23dd
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 7d1180ee6f5715028b823b0e1c4fb44220ea13c89fe045d751f1ae22f3adb4e5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7d1180ee6f5715028b823b0e1c4fb44220ea13c89fe045d751f1ae22f3adb4e5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/make_singleton-780728e93a59345f
[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 `"docker" "inspect" "7d1180ee6f5715028b823b0e1c4fb44220ea13c89fe045d751f1ae22f3adb4e5"`
[INFO] running `"docker" "rm" "-f" "7d1180ee6f5715028b823b0e1c4fb44220ea13c89fe045d751f1ae22f3adb4e5"`
[INFO] [stdout] 7d1180ee6f5715028b823b0e1c4fb44220ea13c89fe045d751f1ae22f3adb4e5