[INFO] crate mathper 0.1.2 is already in cache
[INFO] testing mathper-0.1.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate mathper 0.1.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate mathper 0.1.2 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mathper 0.1.2
[INFO] finished tweaking crates.io crate mathper 0.1.2
[INFO] tweaked toml for crates.io crate mathper 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] e0e9f2d6a0036427aee46872d7767ebf1a1c2cf55915968a682d187d950c7ddf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e0e9f2d6a0036427aee46872d7767ebf1a1c2cf55915968a682d187d950c7ddf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling mathper v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `sub`
[INFO] [stderr]   --> src/lib.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stderr]    |                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "e0e9f2d6a0036427aee46872d7767ebf1a1c2cf55915968a682d187d950c7ddf"`
[INFO] running `"docker" "rm" "-f" "e0e9f2d6a0036427aee46872d7767ebf1a1c2cf55915968a682d187d950c7ddf"`
[INFO] [stdout] e0e9f2d6a0036427aee46872d7767ebf1a1c2cf55915968a682d187d950c7ddf
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2c35f007e2ea37ae4d24dd10e55fbb159a046f84ae3e2487eae00e45b93161ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "2c35f007e2ea37ae4d24dd10e55fbb159a046f84ae3e2487eae00e45b93161ef"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling mathper v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `sub`
[INFO] [stderr]   --> src/lib.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stderr]    |                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sub`
[INFO] [stderr]   --> src/lib.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stderr]    |                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "2c35f007e2ea37ae4d24dd10e55fbb159a046f84ae3e2487eae00e45b93161ef"`
[INFO] running `"docker" "rm" "-f" "2c35f007e2ea37ae4d24dd10e55fbb159a046f84ae3e2487eae00e45b93161ef"`
[INFO] [stdout] 2c35f007e2ea37ae4d24dd10e55fbb159a046f84ae3e2487eae00e45b93161ef
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 2a9f39ec22a826c407a7ee4dd4e5d495fdcb1204a64138f4a40e5d1a964560e1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "2a9f39ec22a826c407a7ee4dd4e5d495fdcb1204a64138f4a40e5d1a964560e1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: function is never used: `sub`
[INFO] [stderr]   --> src/lib.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stderr]    |                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sub`
[INFO] [stderr]   --> src/lib.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |         pub fn sub(input1: u32, input2: u32) -> u32 {
[INFO] [stderr]    |                ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mathper-4a7814723b2871e2
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mathper-a2c3720d3b85d07d
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mathper
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2a9f39ec22a826c407a7ee4dd4e5d495fdcb1204a64138f4a40e5d1a964560e1"`
[INFO] running `"docker" "rm" "-f" "2a9f39ec22a826c407a7ee4dd4e5d495fdcb1204a64138f4a40e5d1a964560e1"`
[INFO] [stdout] 2a9f39ec22a826c407a7ee4dd4e5d495fdcb1204a64138f4a40e5d1a964560e1