[INFO] cloning repository https://github.com/Ktoxcon/Rust-Practices
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ktoxcon/Rust-Practices" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKtoxcon%2FRust-Practices", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKtoxcon%2FRust-Practices'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e85fa31b3441ab2aaf65a55ede65afda480b551b
[INFO] testing Ktoxcon/Rust-Practices against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKtoxcon%2FRust-Practices" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ktoxcon/Rust-Practices 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/Ktoxcon/Rust-Practices
[INFO] finished tweaking git repo https://github.com/Ktoxcon/Rust-Practices
[INFO] tweaked toml for git repo https://github.com/Ktoxcon/Rust-Practices written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Ktoxcon/Rust-Practices 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 851185d057360d68716d60506e76e64e30c7a14d280d3f2483db9c325e0206da
[INFO] running `Command { std: "docker" "start" "-a" "851185d057360d68716d60506e76e64e30c7a14d280d3f2483db9c325e0206da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "851185d057360d68716d60506e76e64e30c7a14d280d3f2483db9c325e0206da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "851185d057360d68716d60506e76e64e30c7a14d280d3f2483db9c325e0206da", kill_on_drop: false }`
[INFO] [stdout] 851185d057360d68716d60506e76e64e30c7a14d280d3f2483db9c325e0206da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] bb4e7b39f77cdb9d6ab26bc75c2358ed9a21a0356188532da95ba5634b9bc7de
[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" "bb4e7b39f77cdb9d6ab26bc75c2358ed9a21a0356188532da95ba5634b9bc7de", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_practices v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "bb4e7b39f77cdb9d6ab26bc75c2358ed9a21a0356188532da95ba5634b9bc7de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4e7b39f77cdb9d6ab26bc75c2358ed9a21a0356188532da95ba5634b9bc7de", kill_on_drop: false }`
[INFO] [stdout] bb4e7b39f77cdb9d6ab26bc75c2358ed9a21a0356188532da95ba5634b9bc7de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 6627c04b9d92a7c3c35710788b6258e0c6127c75947a11f25170464fca3df1a2
[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" "6627c04b9d92a7c3c35710788b6258e0c6127c75947a11f25170464fca3df1a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_practices v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "6627c04b9d92a7c3c35710788b6258e0c6127c75947a11f25170464fca3df1a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6627c04b9d92a7c3c35710788b6258e0c6127c75947a11f25170464fca3df1a2", kill_on_drop: false }`
[INFO] [stdout] 6627c04b9d92a7c3c35710788b6258e0c6127c75947a11f25170464fca3df1a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c211d8ef321985c53419031254e5bd61e6675729c4bb0fd27684e17a10a41f71
[INFO] running `Command { std: "docker" "start" "-a" "c211d8ef321985c53419031254e5bd61e6675729c4bb0fd27684e17a10a41f71", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_practices-70174a11669ef78d
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c211d8ef321985c53419031254e5bd61e6675729c4bb0fd27684e17a10a41f71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c211d8ef321985c53419031254e5bd61e6675729c4bb0fd27684e17a10a41f71", kill_on_drop: false }`
[INFO] [stdout] c211d8ef321985c53419031254e5bd61e6675729c4bb0fd27684e17a10a41f71