[INFO] fetching crate daggy 0.7.0...
[INFO] testing daggy-0.7.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate daggy 0.7.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate daggy 0.7.0 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 daggy 0.7.0
[INFO] finished tweaking crates.io crate daggy 0.7.0
[INFO] tweaked toml for crates.io crate daggy 0.7.0 written to /workspace/builds/worker-14/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 23b6ff05e0883ea715b533cc502b78f8c7e2fde4989f37c1368ee3acb8a25d0b
[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" "23b6ff05e0883ea715b533cc502b78f8c7e2fde4989f37c1368ee3acb8a25d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23b6ff05e0883ea715b533cc502b78f8c7e2fde4989f37c1368ee3acb8a25d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23b6ff05e0883ea715b533cc502b78f8c7e2fde4989f37c1368ee3acb8a25d0b", kill_on_drop: false }`
[INFO] [stdout] 23b6ff05e0883ea715b533cc502b78f8c7e2fde4989f37c1368ee3acb8a25d0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] e094cfb12c8f6431af7ce9d54c7a1ab20fc2bcda98c5d99333ebe63d36bb552f
[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" "e094cfb12c8f6431af7ce9d54c7a1ab20fc2bcda98c5d99333ebe63d36bb552f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling daggy v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.82s
[INFO] running `Command { std: "docker" "inspect" "e094cfb12c8f6431af7ce9d54c7a1ab20fc2bcda98c5d99333ebe63d36bb552f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e094cfb12c8f6431af7ce9d54c7a1ab20fc2bcda98c5d99333ebe63d36bb552f", kill_on_drop: false }`
[INFO] [stdout] e094cfb12c8f6431af7ce9d54c7a1ab20fc2bcda98c5d99333ebe63d36bb552f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] 86fd416778f70aeacb8937b0ccbaf7f6aedd1050e12bdc9283c30bb3bf1a6b24
[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" "86fd416778f70aeacb8937b0ccbaf7f6aedd1050e12bdc9283c30bb3bf1a6b24", kill_on_drop: false }`
[INFO] [stderr]    Compiling daggy v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "86fd416778f70aeacb8937b0ccbaf7f6aedd1050e12bdc9283c30bb3bf1a6b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86fd416778f70aeacb8937b0ccbaf7f6aedd1050e12bdc9283c30bb3bf1a6b24", kill_on_drop: false }`
[INFO] [stdout] 86fd416778f70aeacb8937b0ccbaf7f6aedd1050e12bdc9283c30bb3bf1a6b24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 81a7b68ab4890cd4dfb473aa61bd4bb07ce945f6107938f42941c5e4bdab38c8
[INFO] running `Command { std: "docker" "start" "-a" "81a7b68ab4890cd4dfb473aa61bd4bb07ce945f6107938f42941c5e4bdab38c8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/daggy-124218a701675dd1)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/add_edges.rs (/opt/rustwide/target/debug/deps/add_edges-05545f6cb8ec035a)
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test add_edges_more2 ... ok
[INFO] [stdout] test add_edges_err ... ok
[INFO] [stderr]      Running tests/add_edges_stable.rs (/opt/rustwide/target/debug/deps/add_edges_stable-5fa9accefb31dc8c)
[INFO] [stdout] test add_edges_ok ... ok
[INFO] [stdout] test add_edges_more ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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] [stderr]      Running tests/iterators.rs (/opt/rustwide/target/debug/deps/iterators-24b0a9b65a39990d)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test children ... ok
[INFO] [stdout] test parents ... ok
[INFO] [stdout] test weights ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/iterators_stable.rs (/opt/rustwide/target/debug/deps/iterators_stable-5825024c55a72da2)
[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] [stderr]      Running tests/stable_indices.rs (/opt/rustwide/target/debug/deps/stable_indices-93384f6ba6590570)
[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] [stderr]      Running tests/walkers.rs (/opt/rustwide/target/debug/deps/walkers-b9338dbfb0545b63)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test chain ... ok
[INFO] [stdout] test any ... ok
[INFO] [stdout] test fold ... ok
[INFO] [stdout] test take ... ok
[INFO] [stdout] test count ... ok
[INFO] [stdout] test peekable ... ok
[INFO] [stdout] test take_while ... ok
[INFO] [stdout] test find ... ok
[INFO] [stdout] test last ... ok
[INFO] [stdout] test recursive_walk ... ok
[INFO] [stdout] test skip_while ... ok
[INFO] [stdout] test parents ... ok
[INFO] [stdout] test nth ... ok
[INFO] [stdout] test all ... ok
[INFO] [stdout] test children ... ok
[INFO] [stdout] test filter ... ok
[INFO] [stdout] test skip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/walkers_stable.rs (/opt/rustwide/target/debug/deps/walkers_stable-ed0d4846f0c5402d)
[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] [stderr]    Doc-tests daggy
[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" "81a7b68ab4890cd4dfb473aa61bd4bb07ce945f6107938f42941c5e4bdab38c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a7b68ab4890cd4dfb473aa61bd4bb07ce945f6107938f42941c5e4bdab38c8", kill_on_drop: false }`
[INFO] [stdout] 81a7b68ab4890cd4dfb473aa61bd4bb07ce945f6107938f42941c5e4bdab38c8