[INFO] cloning repository https://github.com/herryho/merkle-tree-herry
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/herryho/merkle-tree-herry" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fherryho%2Fmerkle-tree-herry", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fherryho%2Fmerkle-tree-herry'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fherryho%2Fmerkle-tree-herry/refs/tags: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/herryho/merkle-tree-herry
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/herryho/merkle-tree-herry" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fherryho%2Fmerkle-tree-herry", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fherryho%2Fmerkle-tree-herry'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1db9d4d0397ebed887fe66255d56bbc8ad8005b0
[INFO] testing herryho/merkle-tree-herry against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fherryho%2Fmerkle-tree-herry" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/herryho/merkle-tree-herry on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/herryho/merkle-tree-herry
[INFO] finished tweaking git repo https://github.com/herryho/merkle-tree-herry
[INFO] tweaked toml for git repo https://github.com/herryho/merkle-tree-herry written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/herryho/merkle-tree-herry 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d9d5868cc4dd7e2bac37c1475136f7e31f238346bdd83f5a39404deb3f2256c
[INFO] running `Command { std: "docker" "start" "-a" "5d9d5868cc4dd7e2bac37c1475136f7e31f238346bdd83f5a39404deb3f2256c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d9d5868cc4dd7e2bac37c1475136f7e31f238346bdd83f5a39404deb3f2256c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d9d5868cc4dd7e2bac37c1475136f7e31f238346bdd83f5a39404deb3f2256c", kill_on_drop: false }`
[INFO] [stdout] 5d9d5868cc4dd7e2bac37c1475136f7e31f238346bdd83f5a39404deb3f2256c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20acab0e17d7fb3a79a99813022eaf229455db125478052987b292fb6c36f6f4
[INFO] running `Command { std: "docker" "start" "-a" "20acab0e17d7fb3a79a99813022eaf229455db125478052987b292fb6c36f6f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling merkle-tree-herry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "20acab0e17d7fb3a79a99813022eaf229455db125478052987b292fb6c36f6f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20acab0e17d7fb3a79a99813022eaf229455db125478052987b292fb6c36f6f4", kill_on_drop: false }`
[INFO] [stdout] 20acab0e17d7fb3a79a99813022eaf229455db125478052987b292fb6c36f6f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e199494022cdd621aa8c86f349a84e7a9f96203250d6c0698c0f2dd39baa688c
[INFO] running `Command { std: "docker" "start" "-a" "e199494022cdd621aa8c86f349a84e7a9f96203250d6c0698c0f2dd39baa688c", kill_on_drop: false }`
[INFO] [stderr]    Compiling merkle-tree-herry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "e199494022cdd621aa8c86f349a84e7a9f96203250d6c0698c0f2dd39baa688c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e199494022cdd621aa8c86f349a84e7a9f96203250d6c0698c0f2dd39baa688c", kill_on_drop: false }`
[INFO] [stdout] e199494022cdd621aa8c86f349a84e7a9f96203250d6c0698c0f2dd39baa688c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 59bfe95b3e05d6733841eeeabe4f21b775a516218a2270c4d2d1ba5fa4054aaf
[INFO] running `Command { std: "docker" "start" "-a" "59bfe95b3e05d6733841eeeabe4f21b775a516218a2270c4d2d1ba5fa4054aaf", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/merkle_tree_herry-e00094ef27777bf3)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test merkle::tests::test_verify_non_existent ... ok
[INFO] [stdout] test merkle::tests::test_verify_proof_non_existent ... ok
[INFO] [stdout] test merkle::tests::test_prove ... ok
[INFO] [stdout] test merkle::tests::test_prove_non_existent ... ok
[INFO] [stdout] test merkle::tests::test_constructions ... ok
[INFO] [stderr]    Doc-tests merkle_tree_herry
[INFO] [stdout] test merkle::tests::test_empty_input_tree_construction ... ok
[INFO] [stdout] test merkle::tests::test_verify ... ok
[INFO] [stdout] test merkle::tests::test_verify_proof ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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] running `Command { std: "docker" "inspect" "59bfe95b3e05d6733841eeeabe4f21b775a516218a2270c4d2d1ba5fa4054aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59bfe95b3e05d6733841eeeabe4f21b775a516218a2270c4d2d1ba5fa4054aaf", kill_on_drop: false }`
[INFO] [stdout] 59bfe95b3e05d6733841eeeabe4f21b775a516218a2270c4d2d1ba5fa4054aaf