[INFO] cloning repository https://github.com/tawaren/MultiMerkleTreeProofs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tawaren/MultiMerkleTreeProofs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawaren%2FMultiMerkleTreeProofs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawaren%2FMultiMerkleTreeProofs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 96e9ccab70b111cbbb2457397bfdfbfe8bd51f57 [INFO] checking tawaren/MultiMerkleTreeProofs against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawaren%2FMultiMerkleTreeProofs" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tawaren/MultiMerkleTreeProofs on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tawaren/MultiMerkleTreeProofs [INFO] finished tweaking git repo https://github.com/tawaren/MultiMerkleTreeProofs [INFO] tweaked toml for git repo https://github.com/tawaren/MultiMerkleTreeProofs written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/tawaren/MultiMerkleTreeProofs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand_jitter v0.1.3 [INFO] [stderr] Downloaded autocfg v0.1.2 [INFO] [stderr] Downloaded rand_os v0.1.2 [INFO] [stderr] Downloaded libc v0.2.48 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1d61e04b3beb2b0b856fd4352ddb8408688ef4577fad884d5d13ee4ac4d7ac8e [INFO] running `Command { std: "docker" "start" "-a" "1d61e04b3beb2b0b856fd4352ddb8408688ef4577fad884d5d13ee4ac4d7ac8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1d61e04b3beb2b0b856fd4352ddb8408688ef4577fad884d5d13ee4ac4d7ac8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d61e04b3beb2b0b856fd4352ddb8408688ef4577fad884d5d13ee4ac4d7ac8e", kill_on_drop: false }` [INFO] [stdout] 1d61e04b3beb2b0b856fd4352ddb8408688ef4577fad884d5d13ee4ac4d7ac8e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 711574e72d1635e8dfcba12a0a2094e0e50b317eff8932528d3d3bec07865e01 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "711574e72d1635e8dfcba12a0a2094e0e50b317eff8932528d3d3bec07865e01", kill_on_drop: false }` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking multi_merkle_proof v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> src/tree_hash.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/tree_hash.rs:41:26 [INFO] [stdout] | [INFO] [stdout] 41 | indicator &= (indicator-1); [INFO] [stdout] | ^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::prelude::*` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use rand::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> src/tree_hash.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/tree_hash.rs:41:26 [INFO] [stdout] | [INFO] [stdout] 41 | indicator &= (indicator-1); [INFO] [stdout] | ^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lib.rs:71:45 [INFO] [stdout] | [INFO] [stdout] 71 | let values:Vec<_> = sorted.iter().map(|(i,v)|(*v).clone()).collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/lib.rs:72:48 [INFO] [stdout] | [INFO] [stdout] 72 | let indices:Vec<_> = sorted.iter().map(|(i,v)|*i).collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/tree_hash.rs:23:21 [INFO] [stdout] | [INFO] [stdout] 19 | self.0[level] = match &self.0[level] { [INFO] [stdout] | ------ immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 23 | if !self.push_node( level+1, existing.hash_merge(node)) { return false; } [INFO] [stdout] | ^^^^ -------- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lib.rs:71:45 [INFO] [stdout] | [INFO] [stdout] 71 | let values:Vec<_> = sorted.iter().map(|(i,v)|(*v).clone()).collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/lib.rs:72:48 [INFO] [stdout] | [INFO] [stdout] 72 | let indices:Vec<_> = sorted.iter().map(|(i,v)|*i).collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/lib.rs:153:18 [INFO] [stdout] | [INFO] [stdout] 153 | fn root_hash(height:u64) -> IndexVirtHash { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `val` [INFO] [stdout] --> src/lib.rs:167:17 [INFO] [stdout] | [INFO] [stdout] 167 | let val = leaf_hash(index,height); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/tree_hash.rs:23:21 [INFO] [stdout] | [INFO] [stdout] 19 | self.0[level] = match &self.0[level] { [INFO] [stdout] | ------ immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 23 | if !self.push_node( level+1, existing.hash_merge(node)) { return false; } [INFO] [stdout] | ^^^^ -------- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.99s [INFO] running `Command { std: "docker" "inspect" "711574e72d1635e8dfcba12a0a2094e0e50b317eff8932528d3d3bec07865e01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "711574e72d1635e8dfcba12a0a2094e0e50b317eff8932528d3d3bec07865e01", kill_on_drop: false }` [INFO] [stdout] 711574e72d1635e8dfcba12a0a2094e0e50b317eff8932528d3d3bec07865e01