[INFO] fetching crate magic-number-b 0.1.0...
[INFO] testing magic-number-b-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate magic-number-b 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate magic-number-b 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate magic-number-b 0.1.0
[INFO] finished tweaking crates.io crate magic-number-b 0.1.0
[INFO] tweaked toml for crates.io crate magic-number-b 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d53421cc832f681cb06584df2eb2f3448c2a16cb04c0f46cdf078c08a4096d1
[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" "0d53421cc832f681cb06584df2eb2f3448c2a16cb04c0f46cdf078c08a4096d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d53421cc832f681cb06584df2eb2f3448c2a16cb04c0f46cdf078c08a4096d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d53421cc832f681cb06584df2eb2f3448c2a16cb04c0f46cdf078c08a4096d1", kill_on_drop: false }`
[INFO] [stdout] 0d53421cc832f681cb06584df2eb2f3448c2a16cb04c0f46cdf078c08a4096d1
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa615fbf8b929c843bd58f2f47df920a6cdd4a3429148e11656b9d61f0f17892
[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" "aa615fbf8b929c843bd58f2f47df920a6cdd4a3429148e11656b9d61f0f17892", kill_on_drop: false }`
[INFO] [stderr]    Compiling magic-number v0.2.0
[INFO] [stderr]    Compiling magic-number-b v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "aa615fbf8b929c843bd58f2f47df920a6cdd4a3429148e11656b9d61f0f17892", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa615fbf8b929c843bd58f2f47df920a6cdd4a3429148e11656b9d61f0f17892", kill_on_drop: false }`
[INFO] [stdout] aa615fbf8b929c843bd58f2f47df920a6cdd4a3429148e11656b9d61f0f17892
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d271f9a9e506fbe0216dc7e45b0c43cca52e17dd7a30b80ac9faf4ee22e3dd1
[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" "1d271f9a9e506fbe0216dc7e45b0c43cca52e17dd7a30b80ac9faf4ee22e3dd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling magic-number-b v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "1d271f9a9e506fbe0216dc7e45b0c43cca52e17dd7a30b80ac9faf4ee22e3dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d271f9a9e506fbe0216dc7e45b0c43cca52e17dd7a30b80ac9faf4ee22e3dd1", kill_on_drop: false }`
[INFO] [stdout] 1d271f9a9e506fbe0216dc7e45b0c43cca52e17dd7a30b80ac9faf4ee22e3dd1
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 809d439db19c35b5b7ca6d767ef16f83f02ef7b58d0dad957851c08ac620923d
[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" "809d439db19c35b5b7ca6d767ef16f83f02ef7b58d0dad957851c08ac620923d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/magic_number_b-2ddb1dae61278cc4)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests magic-number-b
[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" "809d439db19c35b5b7ca6d767ef16f83f02ef7b58d0dad957851c08ac620923d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "809d439db19c35b5b7ca6d767ef16f83f02ef7b58d0dad957851c08ac620923d", kill_on_drop: false }`
[INFO] [stdout] 809d439db19c35b5b7ca6d767ef16f83f02ef7b58d0dad957851c08ac620923d