[INFO] cloning repository https://github.com/Jannikio/merkle_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jannikio/merkle_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJannikio%2Fmerkle_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJannikio%2Fmerkle_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e931c6c940d69b676b18a86de29edc5a84e2cba
[INFO] testing Jannikio/merkle_tree/7e931c6c940d69b676b18a86de29edc5a84e2cba against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJannikio%2Fmerkle_tree" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Jannikio/merkle_tree
[INFO] finished tweaking git repo https://github.com/Jannikio/merkle_tree
[INFO] tweaked toml for git repo https://github.com/Jannikio/merkle_tree written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jannikio/merkle_tree on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Jannikio/merkle_tree 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e7da6699486a383375e0078517a0459e101e6c60564f26007fc9e0630eb933b
[INFO] running `Command { std: "docker" "start" "-a" "6e7da6699486a383375e0078517a0459e101e6c60564f26007fc9e0630eb933b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e7da6699486a383375e0078517a0459e101e6c60564f26007fc9e0630eb933b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e7da6699486a383375e0078517a0459e101e6c60564f26007fc9e0630eb933b", kill_on_drop: false }`
[INFO] [stdout] 6e7da6699486a383375e0078517a0459e101e6c60564f26007fc9e0630eb933b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b004e469a5decff8fb487ec21404e679ba034f016a6ec9ab2d2e99741dac2d15
[INFO] running `Command { std: "docker" "start" "-a" "b004e469a5decff8fb487ec21404e679ba034f016a6ec9ab2d2e99741dac2d15", kill_on_drop: false }`
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.3
[INFO] [stderr]    Compiling digest v0.10.6
[INFO] [stderr]    Compiling sha2 v0.10.6
[INFO] [stderr]    Compiling merkle_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/tree.rs:198:32
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for nodes_stage in nodes_opening {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 198 -             for nodes_stage in nodes_opening {
[INFO] [stdout] 198 +             while let Some(nodes_stage) = nodes_opening {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 198 -             for nodes_stage in nodes_opening {
[INFO] [stdout] 198 +             if let Some(nodes_stage) = nodes_opening {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.82s
[INFO] running `Command { std: "docker" "inspect" "b004e469a5decff8fb487ec21404e679ba034f016a6ec9ab2d2e99741dac2d15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b004e469a5decff8fb487ec21404e679ba034f016a6ec9ab2d2e99741dac2d15", kill_on_drop: false }`
[INFO] [stdout] b004e469a5decff8fb487ec21404e679ba034f016a6ec9ab2d2e99741dac2d15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17f581225059759479ddd5b77befd9332e162e676052adaf49924553d0459d29
[INFO] running `Command { std: "docker" "start" "-a" "17f581225059759479ddd5b77befd9332e162e676052adaf49924553d0459d29", kill_on_drop: false }`
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/tree.rs:198:32
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for nodes_stage in nodes_opening {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 198 -             for nodes_stage in nodes_opening {
[INFO] [stdout] 198 +             while let Some(nodes_stage) = nodes_opening {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 198 -             for nodes_stage in nodes_opening {
[INFO] [stdout] 198 +             if let Some(nodes_stage) = nodes_opening {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling merkle_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/tree.rs:198:32
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for nodes_stage in nodes_opening {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 198 -             for nodes_stage in nodes_opening {
[INFO] [stdout] 198 +             while let Some(nodes_stage) = nodes_opening {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 198 -             for nodes_stage in nodes_opening {
[INFO] [stdout] 198 +             if let Some(nodes_stage) = nodes_opening {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "17f581225059759479ddd5b77befd9332e162e676052adaf49924553d0459d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f581225059759479ddd5b77befd9332e162e676052adaf49924553d0459d29", kill_on_drop: false }`
[INFO] [stdout] 17f581225059759479ddd5b77befd9332e162e676052adaf49924553d0459d29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a0771f07b901df3c6d9b297b72ea8f0c6314ae691227632efcd2902ac3b86f4b
[INFO] running `Command { std: "docker" "start" "-a" "a0771f07b901df3c6d9b297b72ea8f0c6314ae691227632efcd2902ac3b86f4b", kill_on_drop: false }`
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/tree.rs:198:32
[INFO] [stderr]     |
[INFO] [stderr] 198 |             for nodes_stage in nodes_opening {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 198 -             for nodes_stage in nodes_opening {
[INFO] [stderr] 198 +             while let Some(nodes_stage) = nodes_opening {
[INFO] [stderr]     |
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 198 -             for nodes_stage in nodes_opening {
[INFO] [stderr] 198 +             if let Some(nodes_stage) = nodes_opening {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `merkle_tree` (lib) generated 1 warning
[INFO] [stderr] warning: `merkle_tree` (lib test) generated 1 warning (1 duplicate)
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/merkletreelib-f17a65034cde5774)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/merkletree-0a52d6fe59d2d1d3)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-11de1c75ac4a987e)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_create_new_tree_with_arity_2 ... ok
[INFO] [stdout] test test_create_new_tree ... ok
[INFO] [stdout] test test_create_new_tree_of_int ... ok
[INFO] [stdout] test test_get_leaf_index_by_values ... ok
[INFO] [stdout] test test_get_leafs ... ok
[INFO] [stdout] test test_get_nodes ... ok
[INFO] [stdout] test test_get_opening ... ok
[INFO] [stdout] test test_get_root ... ok
[INFO] [stdout] test test_get_values_from_leaf ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkletreelib
[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" "a0771f07b901df3c6d9b297b72ea8f0c6314ae691227632efcd2902ac3b86f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0771f07b901df3c6d9b297b72ea8f0c6314ae691227632efcd2902ac3b86f4b", kill_on_drop: false }`
[INFO] [stdout] a0771f07b901df3c6d9b297b72ea8f0c6314ae691227632efcd2902ac3b86f4b
