[INFO] cloning repository https://github.com/chfi/gfa-bubbles
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chfi/gfa-bubbles" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchfi%2Fgfa-bubbles", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchfi%2Fgfa-bubbles'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3c375f5d1567140f3a0af1cc5c083234771b320
[INFO] testing chfi/gfa-bubbles against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchfi%2Fgfa-bubbles" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chfi/gfa-bubbles on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chfi/gfa-bubbles
[INFO] finished tweaking git repo https://github.com/chfi/gfa-bubbles
[INFO] tweaked toml for git repo https://github.com/chfi/gfa-bubbles written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/chfi/gfa-bubbles already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa4392a80626d0e885555b04b2a4c4c06928513d5be7fb91cb7a6b1df4eb1c7e
[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" "aa4392a80626d0e885555b04b2a4c4c06928513d5be7fb91cb7a6b1df4eb1c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa4392a80626d0e885555b04b2a4c4c06928513d5be7fb91cb7a6b1df4eb1c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa4392a80626d0e885555b04b2a4c4c06928513d5be7fb91cb7a6b1df4eb1c7e", kill_on_drop: false }`
[INFO] [stdout] aa4392a80626d0e885555b04b2a4c4c06928513d5be7fb91cb7a6b1df4eb1c7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] b70388911841c7c3809f8cc624ac88511dda9507534c837f570fba68b8e0cbdf
[INFO] running `Command { std: "docker" "start" "-a" "b70388911841c7c3809f8cc624ac88511dda9507534c837f570fba68b8e0cbdf", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling gfa v0.2.3
[INFO] [stderr]    Compiling handlegraph v0.1.0
[INFO] [stderr]    Compiling gfabubbles v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `loop_ends`
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut loop_ends: Vec<NodeId> = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loop_ends`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut loop_ends: Vec<NodeId> = Vec::new();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.34s
[INFO] running `Command { std: "docker" "inspect" "b70388911841c7c3809f8cc624ac88511dda9507534c837f570fba68b8e0cbdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b70388911841c7c3809f8cc624ac88511dda9507534c837f570fba68b8e0cbdf", kill_on_drop: false }`
[INFO] [stdout] b70388911841c7c3809f8cc624ac88511dda9507534c837f570fba68b8e0cbdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad65ea06617695af25d6c4f9e7ad36f564042e737ae5928747618117e0ba6161
[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" "ad65ea06617695af25d6c4f9e7ad36f564042e737ae5928747618117e0ba6161", kill_on_drop: false }`
[INFO] [stderr]    Compiling gfabubbles v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `loop_ends`
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut loop_ends: Vec<NodeId> = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loop_ends`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut loop_ends: Vec<NodeId> = Vec::new();
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "ad65ea06617695af25d6c4f9e7ad36f564042e737ae5928747618117e0ba6161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad65ea06617695af25d6c4f9e7ad36f564042e737ae5928747618117e0ba6161", kill_on_drop: false }`
[INFO] [stdout] ad65ea06617695af25d6c4f9e7ad36f564042e737ae5928747618117e0ba6161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c87397f306d8299cda06a43de3ebe069399704c917f0e5ffa44c51ea0d772f2
[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" "6c87397f306d8299cda06a43de3ebe069399704c917f0e5ffa44c51ea0d772f2", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `loop_ends`
[INFO] [stderr]    --> src/main.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |     let mut loop_ends: Vec<NodeId> = Vec::new();
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loop_ends`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |     let mut loop_ends: Vec<NodeId> = Vec::new();
[INFO] [stderr]     |         ----^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gfabubbles-40cf63ce451a5062
[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" "6c87397f306d8299cda06a43de3ebe069399704c917f0e5ffa44c51ea0d772f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c87397f306d8299cda06a43de3ebe069399704c917f0e5ffa44c51ea0d772f2", kill_on_drop: false }`
[INFO] [stdout] 6c87397f306d8299cda06a43de3ebe069399704c917f0e5ffa44c51ea0d772f2
