[INFO] cloning repository https://github.com/Sirotyann/rust_hello_world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sirotyann/rust_hello_world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirotyann%2Frust_hello_world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirotyann%2Frust_hello_world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 430e920ff7b5efea75795a06a5fd92213204de43
[INFO] testing Sirotyann/rust_hello_world against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirotyann%2Frust_hello_world" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sirotyann/rust_hello_world 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/Sirotyann/rust_hello_world
[INFO] finished tweaking git repo https://github.com/Sirotyann/rust_hello_world
[INFO] tweaked toml for git repo https://github.com/Sirotyann/rust_hello_world written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Sirotyann/rust_hello_world 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b28dbf47ea124b5a197ec5dc950b75bbf0bd195c3f872e2b71be8e7a2474b5ed
[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" "b28dbf47ea124b5a197ec5dc950b75bbf0bd195c3f872e2b71be8e7a2474b5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b28dbf47ea124b5a197ec5dc950b75bbf0bd195c3f872e2b71be8e7a2474b5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b28dbf47ea124b5a197ec5dc950b75bbf0bd195c3f872e2b71be8e7a2474b5ed", kill_on_drop: false }`
[INFO] [stdout] b28dbf47ea124b5a197ec5dc950b75bbf0bd195c3f872e2b71be8e7a2474b5ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 537c88498e20127f9c3e4f0626b765612b966481efbf8c6b404bd923860883f4
[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" "537c88498e20127f9c3e4f0626b765612b966481efbf8c6b404bd923860883f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/feature/cons_list.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new() -> List {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "537c88498e20127f9c3e4f0626b765612b966481efbf8c6b404bd923860883f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "537c88498e20127f9c3e4f0626b765612b966481efbf8c6b404bd923860883f4", kill_on_drop: false }`
[INFO] [stdout] 537c88498e20127f9c3e4f0626b765612b966481efbf8c6b404bd923860883f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b83b82598ffa28bb7a909f54110356f8f5a9f268bc631b9f811c93639edfa807
[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" "b83b82598ffa28bb7a909f54110356f8f5a9f268bc631b9f811c93639edfa807", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/feature/cons_list.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new() -> List {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "b83b82598ffa28bb7a909f54110356f8f5a9f268bc631b9f811c93639edfa807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83b82598ffa28bb7a909f54110356f8f5a9f268bc631b9f811c93639edfa807", kill_on_drop: false }`
[INFO] [stdout] b83b82598ffa28bb7a909f54110356f8f5a9f268bc631b9f811c93639edfa807
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ac6d9318f035e2a5d2bd6545a64e052dcc30d054404a40e5a6099920b9684c21
[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" "ac6d9318f035e2a5d2bd6545a64e052dcc30d054404a40e5a6099920b9684c21", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/feature/cons_list.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn new() -> List {
[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 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_hello_world-ab5a6af2068df7f2
[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 `Command { std: "docker" "inspect" "ac6d9318f035e2a5d2bd6545a64e052dcc30d054404a40e5a6099920b9684c21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6d9318f035e2a5d2bd6545a64e052dcc30d054404a40e5a6099920b9684c21", kill_on_drop: false }`
[INFO] [stdout] ac6d9318f035e2a5d2bd6545a64e052dcc30d054404a40e5a6099920b9684c21