[INFO] cloning repository https://github.com/silkyprogrammer/rustlearnings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/silkyprogrammer/rustlearnings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilkyprogrammer%2Frustlearnings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilkyprogrammer%2Frustlearnings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa0c25ff221a5994511cf3f0379151260a93ee0d
[INFO] testing silkyprogrammer/rustlearnings against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilkyprogrammer%2Frustlearnings" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/silkyprogrammer/rustlearnings on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/silkyprogrammer/rustlearnings
[INFO] finished tweaking git repo https://github.com/silkyprogrammer/rustlearnings
[INFO] tweaked toml for git repo https://github.com/silkyprogrammer/rustlearnings written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/silkyprogrammer/rustlearnings already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] d99ecd6ffeb0937bbe8c5234281068ed658b344abcb5033cccf8f92b18fc5ec8
[INFO] running `Command { std: "docker" "start" "-a" "d99ecd6ffeb0937bbe8c5234281068ed658b344abcb5033cccf8f92b18fc5ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d99ecd6ffeb0937bbe8c5234281068ed658b344abcb5033cccf8f92b18fc5ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d99ecd6ffeb0937bbe8c5234281068ed658b344abcb5033cccf8f92b18fc5ec8", kill_on_drop: false }`
[INFO] [stdout] d99ecd6ffeb0937bbe8c5234281068ed658b344abcb5033cccf8f92b18fc5ec8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a546435c77233b80404eb14f178dd4c456b54e2b70b0ff684983621ba9361915
[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" "a546435c77233b80404eb14f178dd4c456b54e2b70b0ff684983621ba9361915", kill_on_drop: false }`
[INFO] [stderr]    Compiling HelloWorld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `HelloWorld` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "a546435c77233b80404eb14f178dd4c456b54e2b70b0ff684983621ba9361915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a546435c77233b80404eb14f178dd4c456b54e2b70b0ff684983621ba9361915", kill_on_drop: false }`
[INFO] [stdout] a546435c77233b80404eb14f178dd4c456b54e2b70b0ff684983621ba9361915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--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] 85f6ddc5aec03cb18200b370af3bf8d857c286199a804ce61da6d5dab7d3a16c
[INFO] running `Command { std: "docker" "start" "-a" "85f6ddc5aec03cb18200b370af3bf8d857c286199a804ce61da6d5dab7d3a16c", kill_on_drop: false }`
[INFO] [stderr]    Compiling HelloWorld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `HelloWorld` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "85f6ddc5aec03cb18200b370af3bf8d857c286199a804ce61da6d5dab7d3a16c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85f6ddc5aec03cb18200b370af3bf8d857c286199a804ce61da6d5dab7d3a16c", kill_on_drop: false }`
[INFO] [stdout] 85f6ddc5aec03cb18200b370af3bf8d857c286199a804ce61da6d5dab7d3a16c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0eea79b232359326e106a1c1bf161b44db4a243d3d3480805cf6511bb3b64c1a
[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" "0eea79b232359326e106a1c1bf161b44db4a243d3d3480805cf6511bb3b64c1a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: crate `HelloWorld` should have a snake case name
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: `HelloWorld` (bin "HelloWorld" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/HelloWorld-ea2f01592f694f84)
[INFO] running `Command { std: "docker" "inspect" "0eea79b232359326e106a1c1bf161b44db4a243d3d3480805cf6511bb3b64c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eea79b232359326e106a1c1bf161b44db4a243d3d3480805cf6511bb3b64c1a", kill_on_drop: false }`
[INFO] [stdout] 0eea79b232359326e106a1c1bf161b44db4a243d3d3480805cf6511bb3b64c1a