[INFO] cloning repository https://github.com/uklotzde/flowcalc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uklotzde/flowcalc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuklotzde%2Fflowcalc"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuklotzde%2Fflowcalc'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfa28c9fce02d584a909d45a398326dc8ab41b54
[INFO] checking uklotzde/flowcalc against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuklotzde%2Fflowcalc" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uklotzde/flowcalc on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/uklotzde/flowcalc
[INFO] finished tweaking git repo https://github.com/uklotzde/flowcalc
[INFO] tweaked toml for git repo https://github.com/uklotzde/flowcalc written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/uklotzde/flowcalc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c31e45a0601c017a890e351d642af840a2d1e127aa8e59c22afe43e11b177188
[INFO] running `"docker" "start" "-a" "c31e45a0601c017a890e351d642af840a2d1e127aa8e59c22afe43e11b177188"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]     Checking flowcalc v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking deflate v0.8.3
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking png v0.16.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking image v0.23.2
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking qrcode v0.12.0
[INFO] [stderr]     Checking bardecoder v0.2.0 (https://github.com/uklotzde/bardecoder.git?branch=devel#07c4fb2f)
[INFO] [stderr] warning: associated function is never used: `input`
[INFO] [stderr]   --> examples/calculator.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn input(&self, input_index: PortIndex) -> &Port<f64, ()> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `output`
[INFO] [stderr]   --> examples/calculator.rs:58:12
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn output(&self, output_index: PortIndex) -> &Port<(), f64> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.74s
[INFO] running `"docker" "inspect" "c31e45a0601c017a890e351d642af840a2d1e127aa8e59c22afe43e11b177188"`
[INFO] running `"docker" "rm" "-f" "c31e45a0601c017a890e351d642af840a2d1e127aa8e59c22afe43e11b177188"`
[INFO] [stdout] c31e45a0601c017a890e351d642af840a2d1e127aa8e59c22afe43e11b177188