[INFO] fetching crate peano-natural 0.2.1...
[INFO] testing peano-natural-0.2.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate peano-natural 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate peano-natural 0.2.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate peano-natural 0.2.1
[INFO] finished tweaking crates.io crate peano-natural 0.2.1
[INFO] tweaked toml for crates.io crate peano-natural 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbce56d2770ee3c70e4c26d250a318ed371d44cde10a1a1a8a3ff18409e6c93b
[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" "bbce56d2770ee3c70e4c26d250a318ed371d44cde10a1a1a8a3ff18409e6c93b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbce56d2770ee3c70e4c26d250a318ed371d44cde10a1a1a8a3ff18409e6c93b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbce56d2770ee3c70e4c26d250a318ed371d44cde10a1a1a8a3ff18409e6c93b", kill_on_drop: false }`
[INFO] [stdout] bbce56d2770ee3c70e4c26d250a318ed371d44cde10a1a1a8a3ff18409e6c93b
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e0b53d11f7fa1804959e8e6b2d9575c72ea7549f82ec3077dced8924bb2cf3b
[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" "5e0b53d11f7fa1804959e8e6b2d9575c72ea7549f82ec3077dced8924bb2cf3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling peano-natural v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "5e0b53d11f7fa1804959e8e6b2d9575c72ea7549f82ec3077dced8924bb2cf3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e0b53d11f7fa1804959e8e6b2d9575c72ea7549f82ec3077dced8924bb2cf3b", kill_on_drop: false }`
[INFO] [stdout] 5e0b53d11f7fa1804959e8e6b2d9575c72ea7549f82ec3077dced8924bb2cf3b
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 98f33b280e380cd547ce4e7a2c1a3d36c84bb12fe259f5c2b0a88ee6b8a5917d
[INFO] running `Command { std: "docker" "start" "-a" "98f33b280e380cd547ce4e7a2c1a3d36c84bb12fe259f5c2b0a88ee6b8a5917d", kill_on_drop: false }`
[INFO] [stderr]    Compiling peano-natural v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "98f33b280e380cd547ce4e7a2c1a3d36c84bb12fe259f5c2b0a88ee6b8a5917d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98f33b280e380cd547ce4e7a2c1a3d36c84bb12fe259f5c2b0a88ee6b8a5917d", kill_on_drop: false }`
[INFO] [stdout] 98f33b280e380cd547ce4e7a2c1a3d36c84bb12fe259f5c2b0a88ee6b8a5917d
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 84a27a177738cf494eaa55fcc4ac35d545250e3b407a9b2f20e8d74df1927f0a
[INFO] running `Command { std: "docker" "start" "-a" "84a27a177738cf494eaa55fcc4ac35d545250e3b407a9b2f20e8d74df1927f0a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/peano-a3dbb888f50666ca)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests peano
[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" "84a27a177738cf494eaa55fcc4ac35d545250e3b407a9b2f20e8d74df1927f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84a27a177738cf494eaa55fcc4ac35d545250e3b407a9b2f20e8d74df1927f0a", kill_on_drop: false }`
[INFO] [stdout] 84a27a177738cf494eaa55fcc4ac35d545250e3b407a9b2f20e8d74df1927f0a