[INFO] updating cached repository acidghost/rust-merkle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/acidghost/rust-merkle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/acidghost/rust-merkle" "work/ex/beta-1.37-6/sources/1.36.0/gh/acidghost/rust-merkle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/acidghost/rust-merkle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/acidghost/rust-merkle" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/acidghost/rust-merkle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/acidghost/rust-merkle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e5e3c7d94544cbcbc7db8a7e2dcbfdd5542549a
[INFO] sha for GitHub repo acidghost/rust-merkle: 1e5e3c7d94544cbcbc7db8a7e2dcbfdd5542549a
[INFO] validating manifest of acidghost/rust-merkle on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of acidghost/rust-merkle on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing acidghost/rust-merkle
[INFO] finished frobbing acidghost/rust-merkle
[INFO] frobbed toml for acidghost/rust-merkle written to work/ex/beta-1.37-6/sources/1.36.0/gh/acidghost/rust-merkle/Cargo.toml
[INFO] started frobbing acidghost/rust-merkle
[INFO] finished frobbing acidghost/rust-merkle
[INFO] frobbed toml for acidghost/rust-merkle written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/acidghost/rust-merkle/Cargo.toml
[INFO] crate acidghost/rust-merkle already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/acidghost/rust-merkle/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing acidghost/rust-merkle against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/acidghost/rust-merkle:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 17fc04d003cdfbf8cc7a86c1c9a24f35b8aa0a15b027fba26f93dbc88a3faedd
[INFO] running `"docker" "start" "-a" "17fc04d003cdfbf8cc7a86c1c9a24f35b8aa0a15b027fba26f93dbc88a3faedd"`
[INFO] [stderr]    Compiling merkle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "17fc04d003cdfbf8cc7a86c1c9a24f35b8aa0a15b027fba26f93dbc88a3faedd"`
[INFO] running `"docker" "rm" "-f" "17fc04d003cdfbf8cc7a86c1c9a24f35b8aa0a15b027fba26f93dbc88a3faedd"`
[INFO] [stdout] 17fc04d003cdfbf8cc7a86c1c9a24f35b8aa0a15b027fba26f93dbc88a3faedd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/acidghost/rust-merkle:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7dddf82c1fb7c4d62e9b5016a09e4f24c76d04cc3eaefc5253b38b7599ce6909
[INFO] running `"docker" "start" "-a" "7dddf82c1fb7c4d62e9b5016a09e4f24c76d04cc3eaefc5253b38b7599ce6909"`
[INFO] [stderr]    Compiling merkle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "7dddf82c1fb7c4d62e9b5016a09e4f24c76d04cc3eaefc5253b38b7599ce6909"`
[INFO] running `"docker" "rm" "-f" "7dddf82c1fb7c4d62e9b5016a09e4f24c76d04cc3eaefc5253b38b7599ce6909"`
[INFO] [stdout] 7dddf82c1fb7c4d62e9b5016a09e4f24c76d04cc3eaefc5253b38b7599ce6909
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/acidghost/rust-merkle:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 6767ae48b742be342109372bdd55643748446e868dd4cc50c00cb6d7d4cbe71c
[INFO] running `"docker" "start" "-a" "6767ae48b742be342109372bdd55643748446e868dd4cc50c00cb6d7d4cbe71c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/merkle-959633b48181c552
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test ntree::tests::new_tree ... ok
[INFO] [stdout] test list::tests::new_list ... ok
[INFO] [stdout] test bintree::tests::two_children ... ok
[INFO] [stdout] test ntree::tests::one_child ... ok
[INFO] [stdout] test list::tests::one_child ... ok
[INFO] [stdout] test bintree::tests::one_child ... ok
[INFO] [stdout] test bintree::tests::new_merkle_root ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests merkle
[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 `"docker" "inspect" "6767ae48b742be342109372bdd55643748446e868dd4cc50c00cb6d7d4cbe71c"`
[INFO] running `"docker" "rm" "-f" "6767ae48b742be342109372bdd55643748446e868dd4cc50c00cb6d7d4cbe71c"`
[INFO] [stdout] 6767ae48b742be342109372bdd55643748446e868dd4cc50c00cb6d7d4cbe71c