[INFO] cloning repository https://github.com/golnarmordadi/rust_dependency_chain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/golnarmordadi/rust_dependency_chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolnarmordadi%2Frust_dependency_chain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolnarmordadi%2Frust_dependency_chain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bcbab17e188998d33875a76f59c93fdbbbde186
[INFO] testing golnarmordadi/rust_dependency_chain against 1.95.0 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolnarmordadi%2Frust_dependency_chain" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/golnarmordadi/rust_dependency_chain
[INFO] finished tweaking git repo https://github.com/golnarmordadi/rust_dependency_chain
[INFO] tweaked toml for git repo https://github.com/golnarmordadi/rust_dependency_chain written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/golnarmordadi/rust_dependency_chain on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/golnarmordadi/rust_dependency_chain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98ce7df5849f9e30a66dd3bb603d3e6877c4b638c6a5da106591a63612f10f35
[INFO] running `Command { std: "docker" "start" "-a" "98ce7df5849f9e30a66dd3bb603d3e6877c4b638c6a5da106591a63612f10f35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98ce7df5849f9e30a66dd3bb603d3e6877c4b638c6a5da106591a63612f10f35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ce7df5849f9e30a66dd3bb603d3e6877c4b638c6a5da106591a63612f10f35", kill_on_drop: false }`
[INFO] [stdout] 98ce7df5849f9e30a66dd3bb603d3e6877c4b638c6a5da106591a63612f10f35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec9fdde60176a187b898201ad4054b794710ff70c26ac8931e6126f4caad3631
[INFO] running `Command { std: "docker" "start" "-a" "ec9fdde60176a187b898201ad4054b794710ff70c26ac8931e6126f4caad3631", kill_on_drop: false }`
[INFO] [stderr]    Compiling dependency_chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "ec9fdde60176a187b898201ad4054b794710ff70c26ac8931e6126f4caad3631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec9fdde60176a187b898201ad4054b794710ff70c26ac8931e6126f4caad3631", kill_on_drop: false }`
[INFO] [stdout] ec9fdde60176a187b898201ad4054b794710ff70c26ac8931e6126f4caad3631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8682d2d333978104245b8d28a01c916f7f4b60631dd0cd3706a53876ba8c0c35
[INFO] running `Command { std: "docker" "start" "-a" "8682d2d333978104245b8d28a01c916f7f4b60631dd0cd3706a53876ba8c0c35", kill_on_drop: false }`
[INFO] [stderr]    Compiling dependency_chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/main.rs:144:24
[INFO] [stdout]     |
[INFO] [stdout] 144 |             .and_then(|res| task2(40))
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "8682d2d333978104245b8d28a01c916f7f4b60631dd0cd3706a53876ba8c0c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8682d2d333978104245b8d28a01c916f7f4b60631dd0cd3706a53876ba8c0c35", kill_on_drop: false }`
[INFO] [stdout] 8682d2d333978104245b8d28a01c916f7f4b60631dd0cd3706a53876ba8c0c35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31ae3dfb3f12033180a575ae2ae5f07c35b3316da291f26054982fb472945713
[INFO] running `Command { std: "docker" "start" "-a" "31ae3dfb3f12033180a575ae2ae5f07c35b3316da291f26054982fb472945713", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/main.rs:144:24
[INFO] [stderr]     |
[INFO] [stderr] 144 |             .and_then(|res| task2(40))
[INFO] [stderr]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `dependency_chain` (bin "dependency_chain" test) generated 1 warning (run `cargo fix --bin "dependency_chain" -p dependency_chain --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/dependency_chain-1d3a2e6a6882e87b)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_task2 ... ok
[INFO] [stdout] test tests::test_task3_failure ... ok
[INFO] [stdout] test tests::test_task4 ... ok
[INFO] [stdout] test tests::test_task1 ... ok
[INFO] [stdout] test tests::test_task2_failure ... ok
[INFO] [stdout] test tests::test_full_chain_failure_at_task2 ... ok
[INFO] [stdout] test tests::test_task4_failure ... ok
[INFO] [stdout] test tests::test_full_chain_success ... ok
[INFO] [stdout] test tests::test_task3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "31ae3dfb3f12033180a575ae2ae5f07c35b3316da291f26054982fb472945713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ae3dfb3f12033180a575ae2ae5f07c35b3316da291f26054982fb472945713", kill_on_drop: false }`
[INFO] [stdout] 31ae3dfb3f12033180a575ae2ae5f07c35b3316da291f26054982fb472945713
