[INFO] fetching crate rgen 0.5.0...
[INFO] testing rgen-0.5.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rgen 0.5.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rgen 0.5.0 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 rgen 0.5.0
[INFO] finished tweaking crates.io crate rgen 0.5.0
[INFO] tweaked toml for crates.io crate rgen 0.5.0 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] fb671bb81247bd7c1d71a42f7ccee91f949b4e141dac09f8c2ec532e5a2514bb
[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" "fb671bb81247bd7c1d71a42f7ccee91f949b4e141dac09f8c2ec532e5a2514bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb671bb81247bd7c1d71a42f7ccee91f949b4e141dac09f8c2ec532e5a2514bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb671bb81247bd7c1d71a42f7ccee91f949b4e141dac09f8c2ec532e5a2514bb", kill_on_drop: false }`
[INFO] [stdout] fb671bb81247bd7c1d71a42f7ccee91f949b4e141dac09f8c2ec532e5a2514bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 3901cd8986b0c27964e4d4fdb5b81f62e02a419aec1d958a497e2e9692c0711f
[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" "3901cd8986b0c27964e4d4fdb5b81f62e02a419aec1d958a497e2e9692c0711f", kill_on_drop: false }`
[INFO] [stderr]    Compiling signifix v0.9.0
[INFO] [stderr]    Compiling array_tool v1.0.3
[INFO] [stderr]    Compiling rgen v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "3901cd8986b0c27964e4d4fdb5b81f62e02a419aec1d958a497e2e9692c0711f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3901cd8986b0c27964e4d4fdb5b81f62e02a419aec1d958a497e2e9692c0711f", kill_on_drop: false }`
[INFO] [stdout] 3901cd8986b0c27964e4d4fdb5b81f62e02a419aec1d958a497e2e9692c0711f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e5708a75f888d93ee69846fa6fe7a6c31c596687a989f2a71b7e1b2708692224
[INFO] running `Command { std: "docker" "start" "-a" "e5708a75f888d93ee69846fa6fe7a6c31c596687a989f2a71b7e1b2708692224", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgen v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "e5708a75f888d93ee69846fa6fe7a6c31c596687a989f2a71b7e1b2708692224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5708a75f888d93ee69846fa6fe7a6c31c596687a989f2a71b7e1b2708692224", kill_on_drop: false }`
[INFO] [stdout] e5708a75f888d93ee69846fa6fe7a6c31c596687a989f2a71b7e1b2708692224
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] bb028d1ba371342a2de0f2343771e86ad6908eb329b08119785bae06069b55a8
[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" "bb028d1ba371342a2de0f2343771e86ad6908eb329b08119785bae06069b55a8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rgen-db07cf976754941b)
[INFO] [stderr]    Doc-tests rgen
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_random_data ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "bb028d1ba371342a2de0f2343771e86ad6908eb329b08119785bae06069b55a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb028d1ba371342a2de0f2343771e86ad6908eb329b08119785bae06069b55a8", kill_on_drop: false }`
[INFO] [stdout] bb028d1ba371342a2de0f2343771e86ad6908eb329b08119785bae06069b55a8