[INFO] cloning repository https://github.com/jakeols/binary_merkle_tree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakeols/binary_merkle_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeols%2Fbinary_merkle_tree", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeols%2Fbinary_merkle_tree'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 183a1cabf991aa9d44929a9deb1abfbe79c14d4b [INFO] checking jakeols/binary_merkle_tree against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeols%2Fbinary_merkle_tree" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jakeols/binary_merkle_tree on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jakeols/binary_merkle_tree [INFO] finished tweaking git repo https://github.com/jakeols/binary_merkle_tree [INFO] tweaked toml for git repo https://github.com/jakeols/binary_merkle_tree written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/jakeols/binary_merkle_tree already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6e17e5808889d97e63c47059d7361ba7eb964dd7d0ae07c3d0e3251cd229416a [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" "6e17e5808889d97e63c47059d7361ba7eb964dd7d0ae07c3d0e3251cd229416a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6e17e5808889d97e63c47059d7361ba7eb964dd7d0ae07c3d0e3251cd229416a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e17e5808889d97e63c47059d7361ba7eb964dd7d0ae07c3d0e3251cd229416a", kill_on_drop: false }` [INFO] [stdout] 6e17e5808889d97e63c47059d7361ba7eb964dd7d0ae07c3d0e3251cd229416a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 4b551825ba816fcaa798654b87c1b52298d89b6076fdaecc30ba3844fef2ffa5 [INFO] running `Command { std: "docker" "start" "-a" "4b551825ba816fcaa798654b87c1b52298d89b6076fdaecc30ba3844fef2ffa5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.3 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking block-padding v0.1.4 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking sha2 v0.8.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking rust-crypto v0.2.36 [INFO] [stderr] Compiling proc-macro-hack v0.5.9 [INFO] [stderr] Compiling hex-literal-impl v0.2.1 [INFO] [stderr] Checking hex-literal v0.2.1 [INFO] [stderr] Checking binary_merkle_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | #[macro_use] extern crate hex_literal; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | #[macro_use] extern crate hex_literal; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/main.rs:58:44 [INFO] [stdout] | [INFO] [stdout] 58 | pub fn generate_merkle_path(&mut self, key: &'a str) -> Vec { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | let mut path = Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/main.rs:58:44 [INFO] [stdout] | [INFO] [stdout] 58 | pub fn generate_merkle_path(&mut self, key: &'a str) -> Vec { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | let mut path = Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 23.43s [INFO] running `Command { std: "docker" "inspect" "4b551825ba816fcaa798654b87c1b52298d89b6076fdaecc30ba3844fef2ffa5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b551825ba816fcaa798654b87c1b52298d89b6076fdaecc30ba3844fef2ffa5", kill_on_drop: false }` [INFO] [stdout] 4b551825ba816fcaa798654b87c1b52298d89b6076fdaecc30ba3844fef2ffa5