[INFO] fetching crate venom 0.0.2...
[INFO] testing venom-0.0.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate venom 0.0.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate venom 0.0.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate venom 0.0.2
[INFO] finished tweaking crates.io crate venom 0.0.2
[INFO] tweaked toml for crates.io crate venom 0.0.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate venom 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 6bacd5b8c2a923a21f96ef655461c2afb596c5c78b4ca39d04f2f97184c53dce
[INFO] running `Command { std: "docker" "start" "-a" "6bacd5b8c2a923a21f96ef655461c2afb596c5c78b4ca39d04f2f97184c53dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bacd5b8c2a923a21f96ef655461c2afb596c5c78b4ca39d04f2f97184c53dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bacd5b8c2a923a21f96ef655461c2afb596c5c78b4ca39d04f2f97184c53dce", kill_on_drop: false }`
[INFO] [stdout] 6bacd5b8c2a923a21f96ef655461c2afb596c5c78b4ca39d04f2f97184c53dce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--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] ce1029fb83c49dcb29d3d8a7add96dbb2d3ffe6ddd5ee87074b2710db57ee284
[INFO] running `Command { std: "docker" "start" "-a" "ce1029fb83c49dcb29d3d8a7add96dbb2d3ffe6ddd5ee87074b2710db57ee284", kill_on_drop: false }`
[INFO] [stderr]    Compiling venom v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "ce1029fb83c49dcb29d3d8a7add96dbb2d3ffe6ddd5ee87074b2710db57ee284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce1029fb83c49dcb29d3d8a7add96dbb2d3ffe6ddd5ee87074b2710db57ee284", kill_on_drop: false }`
[INFO] [stdout] ce1029fb83c49dcb29d3d8a7add96dbb2d3ffe6ddd5ee87074b2710db57ee284
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21aa901c7da466f9f4ced1ee2910cd27d15129e51d982d0d8065c688f05b919e
[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" "21aa901c7da466f9f4ced1ee2910cd27d15129e51d982d0d8065c688f05b919e", kill_on_drop: false }`
[INFO] [stderr]    Compiling venom v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "21aa901c7da466f9f4ced1ee2910cd27d15129e51d982d0d8065c688f05b919e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21aa901c7da466f9f4ced1ee2910cd27d15129e51d982d0d8065c688f05b919e", kill_on_drop: false }`
[INFO] [stdout] 21aa901c7da466f9f4ced1ee2910cd27d15129e51d982d0d8065c688f05b919e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 7354c633be3ea02c8d6ab4e9c5251047c0d81d1d2397f347581151e7ac00aebf
[INFO] running `Command { std: "docker" "start" "-a" "7354c633be3ea02c8d6ab4e9c5251047c0d81d1d2397f347581151e7ac00aebf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/venom-ae22d2edbaff56ca)
[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" "7354c633be3ea02c8d6ab4e9c5251047c0d81d1d2397f347581151e7ac00aebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7354c633be3ea02c8d6ab4e9c5251047c0d81d1d2397f347581151e7ac00aebf", kill_on_drop: false }`
[INFO] [stdout] 7354c633be3ea02c8d6ab4e9c5251047c0d81d1d2397f347581151e7ac00aebf