[INFO] fetching crate kda-tools 0.1.1...
[INFO] checking kda-tools-0.1.1 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate kda-tools 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate kda-tools 0.1.1 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kda-tools 0.1.1
[INFO] finished tweaking crates.io crate kda-tools 0.1.1
[INFO] tweaked toml for crates.io crate kda-tools 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate kda-tools 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39d0c89cb64f5a245a1b14fb1e5e9feaa74c6a33add36542b9a91f389eba31e9
[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" "39d0c89cb64f5a245a1b14fb1e5e9feaa74c6a33add36542b9a91f389eba31e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d0c89cb64f5a245a1b14fb1e5e9feaa74c6a33add36542b9a91f389eba31e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d0c89cb64f5a245a1b14fb1e5e9feaa74c6a33add36542b9a91f389eba31e9", kill_on_drop: false }`
[INFO] [stdout] 39d0c89cb64f5a245a1b14fb1e5e9feaa74c6a33add36542b9a91f389eba31e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] 7088a3acc409d4bea625bcb65214089c5da2c2ccc2dca8cdc332f0738f7f9a89
[INFO] running `Command { std: "docker" "start" "-a" "7088a3acc409d4bea625bcb65214089c5da2c2ccc2dca8cdc332f0738f7f9a89", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking kvc v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking matrixmultiply v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking simba v0.4.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking nalgebra v0.25.3
[INFO] [stderr]     Checking kda-tools v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/bin/kda-compare.rs:210:12
[INFO] [stdout]     |
[INFO] [stdout] 210 |         |i,j| 
[INFO] [stdout]     |            ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/bin/kda-compare.rs:210:12
[INFO] [stdout]     |
[INFO] [stdout] 210 |         |i,j| 
[INFO] [stdout]     |            ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kdab_sum`
[INFO] [stdout]    --> src/bin/kda-compare.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let kdab_sum = x_all.row_sum();
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kdab_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kdab_sum`
[INFO] [stdout]    --> src/bin/kda-compare.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let kdab_sum = x_all.row_sum();
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kdab_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kds_mean`
[INFO] [stdout]    --> src/bin/kda-compare.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |     let kds_mean = kd_spread.row_mean();
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kds_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kds_mean`
[INFO] [stdout]    --> src/bin/kda-compare.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |     let kds_mean = kd_spread.row_mean();
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kds_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kds_var`
[INFO] [stdout]    --> src/bin/kda-compare.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let kds_var = kd_spread.row_variance();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kds_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kdsa_mean`
[INFO] [stdout]    --> src/bin/kda-compare.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let kdsa_mean = kda_spread.row_mean();
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kdsa_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kds_var`
[INFO] [stdout]    --> src/bin/kda-compare.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |     let kds_var = kd_spread.row_variance();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kds_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kdsa_var`
[INFO] [stdout]    --> src/bin/kda-compare.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let kdsa_var = kda_spread.row_variance();
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kdsa_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kdsa_mean`
[INFO] [stdout]    --> src/bin/kda-compare.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     let kdsa_mean = kda_spread.row_mean();
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kdsa_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kdsa_var`
[INFO] [stdout]    --> src/bin/kda-compare.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let kdsa_var = kda_spread.row_variance();
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kdsa_var`
[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 38.88s
[INFO] running `Command { std: "docker" "inspect" "7088a3acc409d4bea625bcb65214089c5da2c2ccc2dca8cdc332f0738f7f9a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7088a3acc409d4bea625bcb65214089c5da2c2ccc2dca8cdc332f0738f7f9a89", kill_on_drop: false }`
[INFO] [stdout] 7088a3acc409d4bea625bcb65214089c5da2c2ccc2dca8cdc332f0738f7f9a89