[INFO] cloning repository https://github.com/eoxxs/differential-aggregate-query
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eoxxs/differential-aggregate-query" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feoxxs%2Fdifferential-aggregate-query", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feoxxs%2Fdifferential-aggregate-query'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74676c1f142ec38772493440e085dc56af7fa005
[INFO] checking eoxxs/differential-aggregate-query against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feoxxs%2Fdifferential-aggregate-query" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eoxxs/differential-aggregate-query on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eoxxs/differential-aggregate-query
[INFO] finished tweaking git repo https://github.com/eoxxs/differential-aggregate-query
[INFO] tweaked toml for git repo https://github.com/eoxxs/differential-aggregate-query written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/eoxxs/differential-aggregate-query already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76ab7ca993762ae777a37adadc1db4536c3c6dfe039e9efcb1319fbc9c8c6c5f
[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" "76ab7ca993762ae777a37adadc1db4536c3c6dfe039e9efcb1319fbc9c8c6c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76ab7ca993762ae777a37adadc1db4536c3c6dfe039e9efcb1319fbc9c8c6c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ab7ca993762ae777a37adadc1db4536c3c6dfe039e9efcb1319fbc9c8c6c5f", kill_on_drop: false }`
[INFO] [stdout] 76ab7ca993762ae777a37adadc1db4536c3c6dfe039e9efcb1319fbc9c8c6c5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--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] 668e01ceb162a94b5500b9d3b79bb272340136a225b7554048ec831967396189
[INFO] running `Command { std: "docker" "start" "-a" "668e01ceb162a94b5500b9d3b79bb272340136a225b7554048ec831967396189", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking timely_logging v0.9.0
[INFO] [stderr]     Checking timely_bytes v0.9.0
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking timely_sort v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking timely_communication v0.9.0
[INFO] [stderr]     Checking timely v0.9.0
[INFO] [stderr]     Checking differential-dataflow v0.9.0
[INFO] [stderr]     Checking differential-aggregate-query v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsCollection`
[INFO] [stdout]   --> src/lib.rs:19:41
[INFO] [stdout]    |
[INFO] [stdout] 19 | use differential_dataflow::collection::{AsCollection, Collection};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Count`
[INFO] [stdout]   --> src/lib.rs:23:53
[INFO] [stdout]    |
[INFO] [stdout] 23 | use differential_dataflow::operators::{Consolidate, Count};
[INFO] [stdout]    |                                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Neg`
[INFO] [stdout]  --> src/semiring/max_prod.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{AddAssign, Neg, Mul};
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Neg`
[INFO] [stdout]  --> src/semiring/sum_prod.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{AddAssign, Neg, Mul};
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsCollection`
[INFO] [stdout]   --> src/lib.rs:19:41
[INFO] [stdout]    |
[INFO] [stdout] 19 | use differential_dataflow::collection::{AsCollection, Collection};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Count`
[INFO] [stdout]   --> src/lib.rs:23:53
[INFO] [stdout]    |
[INFO] [stdout] 23 | use differential_dataflow::operators::{Consolidate, Count};
[INFO] [stdout]    |                                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Neg`
[INFO] [stdout]  --> src/semiring/max_prod.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{AddAssign, Neg, Mul};
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Neg`
[INFO] [stdout]  --> src/semiring/sum_prod.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{AddAssign, Neg, Mul};
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `timely::dataflow::operators`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use timely::dataflow::operators::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/factors/graph.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pos: usize,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `timely::dataflow::operators`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use timely::dataflow::operators::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/factors/graph.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pos: usize,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.36s
[INFO] running `Command { std: "docker" "inspect" "668e01ceb162a94b5500b9d3b79bb272340136a225b7554048ec831967396189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668e01ceb162a94b5500b9d3b79bb272340136a225b7554048ec831967396189", kill_on_drop: false }`
[INFO] [stdout] 668e01ceb162a94b5500b9d3b79bb272340136a225b7554048ec831967396189