[INFO] updating cached repository https://github.com/jblindsay/whitebox-tools
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/jblindsay/whitebox-tools
[INFO] [stderr]    b287509..bed15f4  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bed15f41d52dedd26ead49db9c64220f0ae87d83
[INFO] checking jblindsay/whitebox-tools against try#1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0 for pr-69530
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjblindsay%2Fwhitebox-tools" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/jblindsay/whitebox-tools on toolchain 1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jblindsay/whitebox-tools
[INFO] finished tweaking git repo https://github.com/jblindsay/whitebox-tools
[INFO] tweaked toml for git repo https://github.com/jblindsay/whitebox-tools written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/jblindsay/whitebox-tools already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "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] e78aee4e1922ef442801319fd51aebc06b1e4295f14007db3633359c0d66296a
[INFO] running `"docker" "start" "-a" "e78aee4e1922ef442801319fd51aebc06b1e4295f14007db3633359c0d66296a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking pdqselect v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling bzip2-sys v0.1.8+1.0.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]     Checking statrs v0.9.0
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.3.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rstar v0.7.1
[INFO] [stderr]     Checking kdtree v0.6.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking whitebox_tools v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `whitebox_tools`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name whitebox_tools --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,metadata -C debuginfo=2 -C metadata=f63906f09b3b193d -C extra-filename=-f63906f09b3b193d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-683c95caec78d134.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-f0986306e04fd776.rmeta --extern kdtree=/opt/rustwide/target/debug/deps/libkdtree-4b4f7924403c38bc.rmeta --extern libflate=/opt/rustwide/target/debug/deps/liblibflate-9465a7f9a1a576bd.rmeta --extern lzw=/opt/rustwide/target/debug/deps/liblzw-90a4ad62162f3089.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-ba4cd42b0537359d.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-431ebe10254d0bc1.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e0f287602ce36384.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-63f2c5c7f8d63bda.rmeta --extern rstar=/opt/rustwide/target/debug/deps/librstar-9c8ef505cc18da3a.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-9700571170269de1.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-d04fb0dec2819758.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-749d0c1d13bbe59d.rmeta --extern statrs=/opt/rustwide/target/debug/deps/libstatrs-1d6488681cde8233.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-adaa4724e1288cac.rmeta --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/bzip2-sys-28064b7bd0aabd48/out/lib` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tools/image_analysis/mosaic.rs:270:13
[INFO] [stderr]     |
[INFO] [stderr] 270 |         let mut num_files = input_vec.len();
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e78aee4e1922ef442801319fd51aebc06b1e4295f14007db3633359c0d66296a"`
[INFO] running `"docker" "rm" "-f" "e78aee4e1922ef442801319fd51aebc06b1e4295f14007db3633359c0d66296a"`
[INFO] [stdout] e78aee4e1922ef442801319fd51aebc06b1e4295f14007db3633359c0d66296a