[INFO] fetching crate closure_cacher 0.2.1...
[INFO] testing closure_cacher-0.2.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate closure_cacher 0.2.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate closure_cacher 0.2.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate closure_cacher 0.2.1
[INFO] finished tweaking crates.io crate closure_cacher 0.2.1
[INFO] tweaked toml for crates.io crate closure_cacher 0.2.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cfd85cc242f8ea3ca072c9bb8c392c9b36113969e99434550de80b971aa6d8c
[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" "4cfd85cc242f8ea3ca072c9bb8c392c9b36113969e99434550de80b971aa6d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cfd85cc242f8ea3ca072c9bb8c392c9b36113969e99434550de80b971aa6d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cfd85cc242f8ea3ca072c9bb8c392c9b36113969e99434550de80b971aa6d8c", kill_on_drop: false }`
[INFO] [stdout] 4cfd85cc242f8ea3ca072c9bb8c392c9b36113969e99434550de80b971aa6d8c
[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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d7cc4687e806e668fe6dd9f092bcd249676f111c297531937df6edc74de3c52
[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" "6d7cc4687e806e668fe6dd9f092bcd249676f111c297531937df6edc74de3c52", kill_on_drop: false }`
[INFO] [stderr]    Compiling closure_cacher v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "6d7cc4687e806e668fe6dd9f092bcd249676f111c297531937df6edc74de3c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d7cc4687e806e668fe6dd9f092bcd249676f111c297531937df6edc74de3c52", kill_on_drop: false }`
[INFO] [stdout] 6d7cc4687e806e668fe6dd9f092bcd249676f111c297531937df6edc74de3c52
[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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c55a0c09bbbe8131481bdfd6f1cf5c2bfba2a13febdee15cfa45f2df3cf1866
[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" "8c55a0c09bbbe8131481bdfd6f1cf5c2bfba2a13febdee15cfa45f2df3cf1866", kill_on_drop: false }`
[INFO] [stderr]    Compiling closure_cacher v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "8c55a0c09bbbe8131481bdfd6f1cf5c2bfba2a13febdee15cfa45f2df3cf1866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c55a0c09bbbe8131481bdfd6f1cf5c2bfba2a13febdee15cfa45f2df3cf1866", kill_on_drop: false }`
[INFO] [stdout] 8c55a0c09bbbe8131481bdfd6f1cf5c2bfba2a13febdee15cfa45f2df3cf1866
[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" "+1.59.0" "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] 49db1bb891765429c30e8525ba41684bfd06ed891926fd8a7cdb06f2e391583f
[INFO] running `Command { std: "docker" "start" "-a" "49db1bb891765429c30e8525ba41684bfd06ed891926fd8a7cdb06f2e391583f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/closure_cacher-d7f8881301c8b77d)
[INFO] [stdout] test tests::returns_closure_output_with_input_referenced ... ok
[INFO] [stdout] test tests::returns_closure_output_with_input_copy ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests closure_cacher
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Cacher (line 10) ... ok
[INFO] [stdout] test src/lib.rs - RefCacher (line 45) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "49db1bb891765429c30e8525ba41684bfd06ed891926fd8a7cdb06f2e391583f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49db1bb891765429c30e8525ba41684bfd06ed891926fd8a7cdb06f2e391583f", kill_on_drop: false }`
[INFO] [stdout] 49db1bb891765429c30e8525ba41684bfd06ed891926fd8a7cdb06f2e391583f