[INFO] fetching crate light_binary_merkle_tree 0.1.0...
[INFO] testing light_binary_merkle_tree-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate light_binary_merkle_tree 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate light_binary_merkle_tree 0.1.0
[INFO] finished tweaking crates.io crate light_binary_merkle_tree 0.1.0
[INFO] tweaked toml for crates.io crate light_binary_merkle_tree 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate light_binary_merkle_tree 0.1.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 903239b3317afc4714a58e418bfe8b2924b9179ef2bf935c1af6236d079c373b
[INFO] running `Command { std: "docker" "start" "-a" "903239b3317afc4714a58e418bfe8b2924b9179ef2bf935c1af6236d079c373b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "903239b3317afc4714a58e418bfe8b2924b9179ef2bf935c1af6236d079c373b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "903239b3317afc4714a58e418bfe8b2924b9179ef2bf935c1af6236d079c373b", kill_on_drop: false }`
[INFO] [stdout] 903239b3317afc4714a58e418bfe8b2924b9179ef2bf935c1af6236d079c373b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c34811a85656ded8dd07eb996dbd5db5591204c77fa384b3b892a2813aeccda
[INFO] running `Command { std: "docker" "start" "-a" "4c34811a85656ded8dd07eb996dbd5db5591204c77fa384b3b892a2813aeccda", kill_on_drop: false }`
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling light_binary_merkle_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sha2::Digest`
[INFO] [stdout]  --> src/lightbinarymerkletree.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::Digest;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `hash` is never read
[INFO] [stdout]    --> src/lightbinarymerkletree.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                         hash = &(String::from("0x") + hash_.as_str());
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "4c34811a85656ded8dd07eb996dbd5db5591204c77fa384b3b892a2813aeccda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c34811a85656ded8dd07eb996dbd5db5591204c77fa384b3b892a2813aeccda", kill_on_drop: false }`
[INFO] [stdout] 4c34811a85656ded8dd07eb996dbd5db5591204c77fa384b3b892a2813aeccda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0f3538bb01eba3e9f6e109c004ba479af91f06ed8dce208af661ac0bc3136e6
[INFO] running `Command { std: "docker" "start" "-a" "b0f3538bb01eba3e9f6e109c004ba479af91f06ed8dce208af661ac0bc3136e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling light_binary_merkle_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sha2::Digest`
[INFO] [stdout]  --> src/lightbinarymerkletree.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::Digest;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `hash` is never read
[INFO] [stdout]    --> src/lightbinarymerkletree.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                         hash = &(String::from("0x") + hash_.as_str());
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `hash` is never read
[INFO] [stdout]    --> src/lightbinarymerkletree.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                         hash = &(String::from("0x") + hash_.as_str());
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "b0f3538bb01eba3e9f6e109c004ba479af91f06ed8dce208af661ac0bc3136e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f3538bb01eba3e9f6e109c004ba479af91f06ed8dce208af661ac0bc3136e6", kill_on_drop: false }`
[INFO] [stdout] b0f3538bb01eba3e9f6e109c004ba479af91f06ed8dce208af661ac0bc3136e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2c681d4a2697a635c76b9f6e9a48448016a312480cb83bd87dff998b29619503
[INFO] running `Command { std: "docker" "start" "-a" "2c681d4a2697a635c76b9f6e9a48448016a312480cb83bd87dff998b29619503", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `sha2::Digest`
[INFO] [stdout] running 4 tests
[INFO] [stderr]  --> src/lightbinarymerkletree.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use sha2::Digest;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `hash` is never read
[INFO] [stderr]    --> src/lightbinarymerkletree.rs:218:25
[INFO] [stderr]     |
[INFO] [stderr] 218 |                         hash = &(String::from("0x") + hash_.as_str());
[INFO] [stderr]     |                         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `light_binary_merkle_tree` (lib) generated 2 warnings
[INFO] [stderr] warning: `light_binary_merkle_tree` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/light_binary_merkle_tree-8398ab9c4d26f51f)
[INFO] [stdout] test lightbinarymerkletree::test::test_generate_invalid_merkle_tree_list_len_not_pow_two ... ok
[INFO] [stdout] test lightbinarymerkletree::test::test_generate_invalid_merkle_tree_list_len_zero ... ok
[INFO] [stdout] test lightbinarymerkletree::test::test_generate_proof_invalid_leaf ... ok
[INFO] [stdout] test lightbinarymerkletree::test::test_verify_merkle_tree_any_hasher_instance ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests light_binary_merkle_tree
[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" "2c681d4a2697a635c76b9f6e9a48448016a312480cb83bd87dff998b29619503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c681d4a2697a635c76b9f6e9a48448016a312480cb83bd87dff998b29619503", kill_on_drop: false }`
[INFO] [stdout] 2c681d4a2697a635c76b9f6e9a48448016a312480cb83bd87dff998b29619503