[INFO] cloning repository https://github.com/stevesweetney/basic-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stevesweetney/basic-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 965ba17cffe952654f9719e9f34dc61ccb6639de
[INFO] testing stevesweetney/basic-rs against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstevesweetney%2Fbasic-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stevesweetney/basic-rs on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stevesweetney/basic-rs
[INFO] finished tweaking git repo https://github.com/stevesweetney/basic-rs
[INFO] tweaked toml for git repo https://github.com/stevesweetney/basic-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/stevesweetney/basic-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05a0f8dda12e76165cba2782737417cec253b5fa1bf0702b911dfc9b139eb57e
[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" "05a0f8dda12e76165cba2782737417cec253b5fa1bf0702b911dfc9b139eb57e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05a0f8dda12e76165cba2782737417cec253b5fa1bf0702b911dfc9b139eb57e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a0f8dda12e76165cba2782737417cec253b5fa1bf0702b911dfc9b139eb57e", kill_on_drop: false }`
[INFO] [stdout] 05a0f8dda12e76165cba2782737417cec253b5fa1bf0702b911dfc9b139eb57e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 5065b26fb05a9f8ff431901001ca70d06cf066407ba1711d624dd8a610687509
[INFO] running `Command { std: "docker" "start" "-a" "5065b26fb05a9f8ff431901001ca70d06cf066407ba1711d624dd8a610687509", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]    Compiling rgb v0.8.13
[INFO] [stderr]    Compiling imgref v1.3.5
[INFO] [stderr]    Compiling resize v0.3.0
[INFO] [stderr]    Compiling natord v1.0.9
[INFO] [stderr]    Compiling wild v2.0.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling pbr v1.0.1
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]    Compiling gif-dispose v2.2.0
[INFO] [stderr]    Compiling lodepng v2.4.2
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling imagequant-sys v2.12.2
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling imagequant v2.11.9
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling gifski v0.8.7
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.0
[INFO] [stderr]    Compiling basic v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.65s
[INFO] running `Command { std: "docker" "inspect" "5065b26fb05a9f8ff431901001ca70d06cf066407ba1711d624dd8a610687509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5065b26fb05a9f8ff431901001ca70d06cf066407ba1711d624dd8a610687509", kill_on_drop: false }`
[INFO] [stdout] 5065b26fb05a9f8ff431901001ca70d06cf066407ba1711d624dd8a610687509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dbd754ecf89b279584b249f49caa18ba63fda11d3bb75f4d87e4a20d528ab74
[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" "1dbd754ecf89b279584b249f49caa18ba63fda11d3bb75f4d87e4a20d528ab74", kill_on_drop: false }`
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.6
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling tinytemplate v1.0.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling basic v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 43.30s
[INFO] running `Command { std: "docker" "inspect" "1dbd754ecf89b279584b249f49caa18ba63fda11d3bb75f4d87e4a20d528ab74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dbd754ecf89b279584b249f49caa18ba63fda11d3bb75f4d87e4a20d528ab74", kill_on_drop: false }`
[INFO] [stdout] 1dbd754ecf89b279584b249f49caa18ba63fda11d3bb75f4d87e4a20d528ab74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2f0bf0e782e9d0d086094804874e010bd4f25a0570f5a7ade70925615b783a23
[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" "2f0bf0e782e9d0d086094804874e010bd4f25a0570f5a7ade70925615b783a23", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/basic-75c67c612e2236b3
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/basic-75c67c612e2236b3` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "2f0bf0e782e9d0d086094804874e010bd4f25a0570f5a7ade70925615b783a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0bf0e782e9d0d086094804874e010bd4f25a0570f5a7ade70925615b783a23", kill_on_drop: false }`
[INFO] [stdout] 2f0bf0e782e9d0d086094804874e010bd4f25a0570f5a7ade70925615b783a23