[INFO] cloning repository https://github.com/e-strauss/differential_dataflow_demos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/e-strauss/differential_dataflow_demos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-strauss%2Fdifferential_dataflow_demos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-strauss%2Fdifferential_dataflow_demos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de6c721c5e9c5102b7f91ce4db78e6c611bde97e
[INFO] checking e-strauss/differential_dataflow_demos/de6c721c5e9c5102b7f91ce4db78e6c611bde97e against master#d93f678fa55842cccd2f091deccd93e9494b3764 for pr-138844
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-strauss%2Fdifferential_dataflow_demos" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/e-strauss/differential_dataflow_demos on toolchain d93f678fa55842cccd2f091deccd93e9494b3764
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/e-strauss/differential_dataflow_demos
[INFO] finished tweaking git repo https://github.com/e-strauss/differential_dataflow_demos
[INFO] tweaked toml for git repo https://github.com/e-strauss/differential_dataflow_demos written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/e-strauss/differential_dataflow_demos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/TimelyDataflow/differential-dataflow`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded timely_container v0.12.0
[INFO] [stderr]   Downloaded flatcontainer v0.5.0
[INFO] [stderr]   Downloaded timely_bytes v0.12.1
[INFO] [stderr]   Downloaded timely_communication v0.14.0
[INFO] [stderr]   Downloaded timely_logging v0.12.1
[INFO] [stderr]   Downloaded timely v0.14.1
[INFO] [stderr]   Downloaded columnation v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0f350dab98a9ccdc3d691eeab2f0d8ca6d9cd356c9e3c9452968f02f90503e7
[INFO] running `Command { std: "docker" "start" "-a" "c0f350dab98a9ccdc3d691eeab2f0d8ca6d9cd356c9e3c9452968f02f90503e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0f350dab98a9ccdc3d691eeab2f0d8ca6d9cd356c9e3c9452968f02f90503e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f350dab98a9ccdc3d691eeab2f0d8ca6d9cd356c9e3c9452968f02f90503e7", kill_on_drop: false }`
[INFO] [stdout] c0f350dab98a9ccdc3d691eeab2f0d8ca6d9cd356c9e3c9452968f02f90503e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+d93f678fa55842cccd2f091deccd93e9494b3764" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6fae614c29b2f33228fc10655858546fb879aa3967b214a712fdcf54a307001
[INFO] running `Command { std: "docker" "start" "-a" "e6fae614c29b2f33228fc10655858546fb879aa3967b214a712fdcf54a307001", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking timely_logging v0.12.1
[INFO] [stderr]     Checking timely_bytes v0.12.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking columnation v0.1.0
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]     Checking flatcontainer v0.5.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking timely_communication v0.14.0
[INFO] [stderr]     Checking timely_container v0.12.0
[INFO] [stderr]     Checking timely v0.14.1
[INFO] [stderr]     Checking differential-dataflow v0.13.1 (https://github.com/TimelyDataflow/differential-dataflow?branch=master#4dfb13a5)
[INFO] [stderr]     Checking DD_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `demo2` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn demo2() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `demo2` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn demo2() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.46s
[INFO] running `Command { std: "docker" "inspect" "e6fae614c29b2f33228fc10655858546fb879aa3967b214a712fdcf54a307001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6fae614c29b2f33228fc10655858546fb879aa3967b214a712fdcf54a307001", kill_on_drop: false }`
[INFO] [stdout] e6fae614c29b2f33228fc10655858546fb879aa3967b214a712fdcf54a307001