[INFO] cloning repository https://github.com/dcompiler/rust-iterators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dcompiler/rust-iterators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcompiler%2Frust-iterators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcompiler%2Frust-iterators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d141afce8894ae068f9027faddf014d3912f197f
[INFO] testing dcompiler/rust-iterators against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcompiler%2Frust-iterators" "/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/dcompiler/rust-iterators on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dcompiler/rust-iterators
[INFO] finished tweaking git repo https://github.com/dcompiler/rust-iterators
[INFO] tweaked toml for git repo https://github.com/dcompiler/rust-iterators written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dcompiler/rust-iterators already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb431aaa3fec88cd8ff65c07fe1158684c51102c47c505d91fa26d8b3de4ec1a
[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" "bb431aaa3fec88cd8ff65c07fe1158684c51102c47c505d91fa26d8b3de4ec1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb431aaa3fec88cd8ff65c07fe1158684c51102c47c505d91fa26d8b3de4ec1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb431aaa3fec88cd8ff65c07fe1158684c51102c47c505d91fa26d8b3de4ec1a", kill_on_drop: false }`
[INFO] [stdout] bb431aaa3fec88cd8ff65c07fe1158684c51102c47c505d91fa26d8b3de4ec1a
[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=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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 129bf76226a0872b062824465f7fc50b854916a6f7b3b573ca5dbbd84322981a
[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" "129bf76226a0872b062824465f7fc50b854916a6f7b3b573ca5dbbd84322981a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-iterators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "129bf76226a0872b062824465f7fc50b854916a6f7b3b573ca5dbbd84322981a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "129bf76226a0872b062824465f7fc50b854916a6f7b3b573ca5dbbd84322981a", kill_on_drop: false }`
[INFO] [stdout] 129bf76226a0872b062824465f7fc50b854916a6f7b3b573ca5dbbd84322981a
[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=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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc510666f4ed8156d3eb1d01dbbe07e230bc2473c93ed6685c3cadebfd989c76
[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" "bc510666f4ed8156d3eb1d01dbbe07e230bc2473c93ed6685c3cadebfd989c76", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-iterators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/lib.rs:32:55
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let total = [(1,2),(2,3)].iter().fold(0,|acc,(k,v)| acc+v);
[INFO] [stdout]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/lib.rs:41:84
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let inner2 : HashMap<i32,i32> = hm.iter().fold(HashMap::new(), |mut acc, (&k,&v)| {acc.insert(v.0,v.1); acc});
[INFO] [stdout]    |                                                                                    ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/lib.rs:47:55
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let prod : i32 = inner.iter().fold(1, |acc, (&k,&v)| acc*v);
[INFO] [stdout]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/lib.rs:49:56
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let prod : i32 = inner2.iter().fold(1, |acc, (&k,&v)| acc*v);
[INFO] [stdout]    |                                                        ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ppuc`
[INFO] [stdout]   --> src/lib.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         ppuc: i64,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lease`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         lease: i64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `old_lease`
[INFO] [stdout]   --> src/lib.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         old_lease: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ref_id`
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         ref_id: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "bc510666f4ed8156d3eb1d01dbbe07e230bc2473c93ed6685c3cadebfd989c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc510666f4ed8156d3eb1d01dbbe07e230bc2473c93ed6685c3cadebfd989c76", kill_on_drop: false }`
[INFO] [stdout] bc510666f4ed8156d3eb1d01dbbe07e230bc2473c93ed6685c3cadebfd989c76
[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=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" "+62efba8a050c64249dab942951bb28f710208bc8" "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] 9d5e54298b51d9d0ee3082e12463dca0519933205cf1966f3161d202e0690122
[INFO] running `Command { std: "docker" "start" "-a" "9d5e54298b51d9d0ee3082e12463dca0519933205cf1966f3161d202e0690122", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stdout] running 4 tests
[INFO] [stderr]   --> src/lib.rs:32:55
[INFO] [stdout] test tests::hashmap_iters ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::test_filter ... ok
[INFO] [stderr] 32 |         let total = [(1,2),(2,3)].iter().fold(0,|acc,(k,v)| acc+v);
[INFO] [stdout] test tests::test_scan ... ok
[INFO] [stderr]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] test tests::test_fold ... ok
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]   --> src/lib.rs:41:84
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let inner2 : HashMap<i32,i32> = hm.iter().fold(HashMap::new(), |mut acc, (&k,&v)| {acc.insert(v.0,v.1); acc});
[INFO] [stderr]    |                                                                                    ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]   --> src/lib.rs:47:55
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let prod : i32 = inner.iter().fold(1, |acc, (&k,&v)| acc*v);
[INFO] [stderr]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]   --> src/lib.rs:49:56
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let prod : i32 = inner2.iter().fold(1, |acc, (&k,&v)| acc*v);
[INFO] [stderr]    |                                                        ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ppuc`
[INFO] [stderr]   --> src/lib.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         ppuc: i64,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `lease`
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         lease: i64,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `old_lease`
[INFO] [stderr]   --> src/lib.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         old_lease: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ref_id`
[INFO] [stderr]   --> src/lib.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         ref_id: i64,
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-iterators` (lib test) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_iterators-e8eb175b4c88aa84)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_iterators-1f66b58107069707)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-iterators
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9d5e54298b51d9d0ee3082e12463dca0519933205cf1966f3161d202e0690122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5e54298b51d9d0ee3082e12463dca0519933205cf1966f3161d202e0690122", kill_on_drop: false }`
[INFO] [stdout] 9d5e54298b51d9d0ee3082e12463dca0519933205cf1966f3161d202e0690122