[INFO] fetching crate incremental-topo 0.1.2...
[INFO] testing incremental-topo-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate incremental-topo 0.1.2 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate incremental-topo 0.1.2 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 incremental-topo 0.1.2
[INFO] finished tweaking crates.io crate incremental-topo 0.1.2
[INFO] tweaked toml for crates.io crate incremental-topo 0.1.2 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] crate crates.io crate incremental-topo 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded synstructure v0.9.0
[INFO] [stderr]   Downloaded cfg-if v0.1.5
[INFO] [stderr]   Downloaded failure_derive v0.1.2
[INFO] [stderr]   Downloaded itertools v0.7.8
[INFO] [stderr]   Downloaded ordered-float v1.0.1
[INFO] [stderr]   Downloaded failure v0.1.2
[INFO] [stderr]   Downloaded memchr v2.0.2
[INFO] [stderr]   Downloaded csv-core v0.1.4
[INFO] [stderr]   Downloaded csv v1.0.2
[INFO] [stderr]   Downloaded same-file v1.0.3
[INFO] [stderr]   Downloaded itertools-num v0.1.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.15
[INFO] [stderr]   Downloaded walkdir v2.2.5
[INFO] [stderr]   Downloaded serde_derive v1.0.79
[INFO] [stderr]   Downloaded cc v1.0.23
[INFO] [stderr]   Downloaded handlebars v0.32.4
[INFO] [stderr]   Downloaded criterion-stats v0.2.5
[INFO] [stderr]   Downloaded serde v1.0.79
[INFO] [stderr]   Downloaded criterion v0.2.5
[INFO] [stderr]   Downloaded winapi v0.3.5
[INFO] [stderr]   Downloaded criterion-plot v0.2.5
[INFO] [stderr]   Downloaded version_check v0.1.4
[INFO] [stderr]   Downloaded syn v0.15.9
[INFO] [stderr]   Downloaded pretty_env_logger v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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] 1e3ddfaea66dec0e66edffea6053b51ddb54b24fbe2139c2e69b0938c3de74f9
[INFO] running `Command { std: "docker" "start" "-a" "1e3ddfaea66dec0e66edffea6053b51ddb54b24fbe2139c2e69b0938c3de74f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e3ddfaea66dec0e66edffea6053b51ddb54b24fbe2139c2e69b0938c3de74f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e3ddfaea66dec0e66edffea6053b51ddb54b24fbe2139c2e69b0938c3de74f9", kill_on_drop: false }`
[INFO] [stdout] 1e3ddfaea66dec0e66edffea6053b51ddb54b24fbe2139c2e69b0938c3de74f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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] 211df50b651b374a3b77bd5a2cf769dd13c2f3aaa6d0c27a161751aec794da4e
[INFO] running `Command { std: "docker" "start" "-a" "211df50b651b374a3b77bd5a2cf769dd13c2f3aaa6d0c27a161751aec794da4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.15
[INFO] [stderr]    Compiling cc v1.0.23
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling incremental-topo v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.60s
[INFO] running `Command { std: "docker" "inspect" "211df50b651b374a3b77bd5a2cf769dd13c2f3aaa6d0c27a161751aec794da4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "211df50b651b374a3b77bd5a2cf769dd13c2f3aaa6d0c27a161751aec794da4e", kill_on_drop: false }`
[INFO] [stdout] 211df50b651b374a3b77bd5a2cf769dd13c2f3aaa6d0c27a161751aec794da4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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] c809c70218f8772b8e8f570bf7661db4d7cd26940f37344a47488cbe07510ed6
[INFO] running `Command { std: "docker" "start" "-a" "c809c70218f8772b8e8f570bf7661db4d7cd26940f37344a47488cbe07510ed6", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling same-file v1.0.3
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling walkdir v2.2.5
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling criterion-plot v0.2.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling itertools-num v0.1.2
[INFO] [stderr]    Compiling criterion-stats v0.2.5
[INFO] [stderr]    Compiling ordered-float v1.0.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling simplelog v0.5.3
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling pretty_env_logger v0.2.4
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling csv v1.0.2
[INFO] [stderr]    Compiling handlebars v0.32.4
[INFO] [stderr]    Compiling criterion v0.2.5
[INFO] [stderr]    Compiling incremental-topo v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.55s
[INFO] running `Command { std: "docker" "inspect" "c809c70218f8772b8e8f570bf7661db4d7cd26940f37344a47488cbe07510ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c809c70218f8772b8e8f570bf7661db4d7cd26940f37344a47488cbe07510ed6", kill_on_drop: false }`
[INFO] [stdout] c809c70218f8772b8e8f570bf7661db4d7cd26940f37344a47488cbe07510ed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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] 7bb6e8443cea2f559d1d0892c31c21a0082910e3f2739f684fab60a12e76bcad
[INFO] running `Command { std: "docker" "start" "-a" "7bb6e8443cea2f559d1d0892c31c21a0082910e3f2739f684fab60a12e76bcad", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/incremental_topo-ee2c59b69c72bfb5)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::get_children_unordered ... ok
[INFO] [stdout] test tests::add_nodes_basic ... ok
[INFO] [stdout] test tests::topo_order_values_no_gaps ... ok
[INFO] [stdout] test tests::reject_cycle ... ok
[INFO] [stdout] test tests::unordered_iter ... ok
[INFO] [stdout] test tests::add_nodes_duplicate ... ok
[INFO] [stdout] test tests::topo_cmp ... ok
[INFO] [stdout] test tests::delete_nodes ... ok
[INFO] [stdout] test tests::readme_example ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests incremental-topo
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name incremental_topo --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps -L native=/opt/rustwide/target/debug/build/backtrace-sys-057178681a11429e/out --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-e9e8e838859eb15f.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-4cfede0e54b05aa5.rlib --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-70f88894776f0943.so --extern incremental_topo=/opt/rustwide/target/debug/deps/libincremental_topo-664b2827ea519107.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-5300848aa4b594d9.rlib --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-023ca1c9562bfea7.rlib --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-12e9e262d15ea87d.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-2eae46a253d7fa13.rlib --extern slab=/opt/rustwide/target/debug/deps/libslab-bcf2fc1dbc274d4d.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "7bb6e8443cea2f559d1d0892c31c21a0082910e3f2739f684fab60a12e76bcad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb6e8443cea2f559d1d0892c31c21a0082910e3f2739f684fab60a12e76bcad", kill_on_drop: false }`
[INFO] [stdout] 7bb6e8443cea2f559d1d0892c31c21a0082910e3f2739f684fab60a12e76bcad