[INFO] updating cached repository tawaren/MultiMerkleTreeProofs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/tawaren/MultiMerkleTreeProofs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/tawaren/MultiMerkleTreeProofs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tawaren/MultiMerkleTreeProofs"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tawaren/MultiMerkleTreeProofs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/tawaren/MultiMerkleTreeProofs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tawaren/MultiMerkleTreeProofs"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tawaren/MultiMerkleTreeProofs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 96e9ccab70b111cbbb2457397bfdfbfe8bd51f57 [INFO] sha for GitHub repo tawaren/MultiMerkleTreeProofs: 96e9ccab70b111cbbb2457397bfdfbfe8bd51f57 [INFO] validating manifest of tawaren/MultiMerkleTreeProofs on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of tawaren/MultiMerkleTreeProofs on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing tawaren/MultiMerkleTreeProofs [INFO] finished frobbing tawaren/MultiMerkleTreeProofs [INFO] frobbed toml for tawaren/MultiMerkleTreeProofs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tawaren/MultiMerkleTreeProofs/Cargo.toml [INFO] started frobbing tawaren/MultiMerkleTreeProofs [INFO] finished frobbing tawaren/MultiMerkleTreeProofs [INFO] frobbed toml for tawaren/MultiMerkleTreeProofs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tawaren/MultiMerkleTreeProofs/Cargo.toml [INFO] crate tawaren/MultiMerkleTreeProofs already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking tawaren/MultiMerkleTreeProofs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tawaren/MultiMerkleTreeProofs:/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=forbid" "-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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] f052e5fa32b89ac584006f99400813d68181c24e08152f213da2ca5835878acc [INFO] running `"docker" "start" "-a" "f052e5fa32b89ac584006f99400813d68181c24e08152f213da2ca5835878acc"` [INFO] [stderr] Checking multi_merkle_proof v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::fmt::Debug` [INFO] [stderr] --> src/tree_hash.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::fmt::Debug; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/tree_hash.rs:41:26 [INFO] [stderr] | [INFO] [stderr] 41 | indicator &= (indicator-1); [INFO] [stderr] | ^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `rand::prelude::*` [INFO] [stderr] --> src/lib.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use rand::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt::Debug` [INFO] [stderr] --> src/tree_hash.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::fmt::Debug; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/tree_hash.rs:41:26 [INFO] [stderr] | [INFO] [stderr] 41 | indicator &= (indicator-1); [INFO] [stderr] | ^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:71:45 [INFO] [stderr] | [INFO] [stderr] 71 | let values:Vec<_> = sorted.iter().map(|(i,v)|(*v).clone()).collect(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/lib.rs:72:48 [INFO] [stderr] | [INFO] [stderr] 72 | let indices:Vec<_> = sorted.iter().map(|(i,v)|*i).collect(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/tree_hash.rs:23:21 [INFO] [stderr] | [INFO] [stderr] 19 | self.0[level] = match &self.0[level] { [INFO] [stderr] | ------ immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 23 | if !self.push_node( level+1, existing.hash_merge(node)) { return false; } [INFO] [stderr] | ^^^^ -------- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:71:45 [INFO] [stderr] | [INFO] [stderr] 71 | let values:Vec<_> = sorted.iter().map(|(i,v)|(*v).clone()).collect(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/lib.rs:72:48 [INFO] [stderr] | [INFO] [stderr] 72 | let indices:Vec<_> = sorted.iter().map(|(i,v)|*i).collect(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `height` [INFO] [stderr] --> src/lib.rs:153:18 [INFO] [stderr] | [INFO] [stderr] 153 | fn root_hash(height:u64) -> IndexVirtHash { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_height` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/lib.rs:167:17 [INFO] [stderr] | [INFO] [stderr] 167 | let val = leaf_hash(index,height); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/tree_hash.rs:23:21 [INFO] [stderr] | [INFO] [stderr] 19 | self.0[level] = match &self.0[level] { [INFO] [stderr] | ------ immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 23 | if !self.push_node( level+1, existing.hash_merge(node)) { return false; } [INFO] [stderr] | ^^^^ -------- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.01s [INFO] running `"docker" "inspect" "f052e5fa32b89ac584006f99400813d68181c24e08152f213da2ca5835878acc"` [INFO] running `"docker" "rm" "-f" "f052e5fa32b89ac584006f99400813d68181c24e08152f213da2ca5835878acc"` [INFO] [stdout] f052e5fa32b89ac584006f99400813d68181c24e08152f213da2ca5835878acc