[INFO] cloning repository https://github.com/arunjot12/Rust_programs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arunjot12/Rust_programs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farunjot12%2FRust_programs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farunjot12%2FRust_programs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f208ca5e0ba8f9d58474dfdd2e510d15f5096d10 [INFO] checking arunjot12/Rust_programs against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farunjot12%2FRust_programs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/arunjot12/Rust_programs [INFO] finished tweaking git repo https://github.com/arunjot12/Rust_programs [INFO] tweaked toml for git repo https://github.com/arunjot12/Rust_programs written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/arunjot12/Rust_programs on toolchain b1f2594eac607c1f051534800237eeedb5590a49 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/arunjot12/Rust_programs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a48ee76da7057195d87bd3a3eea123390255ff1d8fa08f2f8aae0280565f866a [INFO] running `Command { std: "docker" "start" "-a" "a48ee76da7057195d87bd3a3eea123390255ff1d8fa08f2f8aae0280565f866a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a48ee76da7057195d87bd3a3eea123390255ff1d8fa08f2f8aae0280565f866a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a48ee76da7057195d87bd3a3eea123390255ff1d8fa08f2f8aae0280565f866a", kill_on_drop: false }` [INFO] [stdout] a48ee76da7057195d87bd3a3eea123390255ff1d8fa08f2f8aae0280565f866a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] eb85ac5e203b5d49b04e2c2caa5b3017528541b5071bba158572db329a561ed4 [INFO] running `Command { std: "docker" "start" "-a" "eb85ac5e203b5d49b04e2c2caa5b3017528541b5071bba158572db329a561ed4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.161 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling serde v1.0.214 [INFO] [stderr] Checking bytes v1.8.0 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Checking regex-syntax v0.8.5 [INFO] [stderr] Compiling syn v2.0.85 [INFO] [stderr] Checking sha3 v0.10.8 [INFO] [stderr] Checking rlp v0.5.2 [INFO] [stderr] Checking uint v0.9.5 [INFO] [stderr] Checking impl-rlp v0.3.0 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking regex-automata v0.4.8 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling serde_derive v1.0.214 [INFO] [stderr] Compiling thiserror-impl v1.0.65 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Checking tokio v1.45.1 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking thiserror v1.0.65 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking fixed-hash v0.8.0 [INFO] [stderr] Checking impl-serde v0.4.0 [INFO] [stderr] Checking serde_json v1.0.132 [INFO] [stderr] Checking ethbloom v0.13.0 [INFO] [stderr] Checking primitive-types v0.12.2 [INFO] [stderr] Checking ethereum-types v0.14.1 [INFO] [stderr] Checking ethabi v18.0.0 [INFO] [stderr] Checking rust_programs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::convert` [INFO] [stdout] --> src/linked_list/new_list.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert` [INFO] [stdout] --> src/linked_list/new_list.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked_list/new_list.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut string_l1 = String::new(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/linked_list/new_list.rs:27:13 [INFO] [stdout] | [INFO] [stdout] 27 | let mut string_l1 = String::new(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `remove` is never used [INFO] [stdout] --> src/linked_list/new_list.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 21 | impl ListNode { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 67 | fn remove(self, val: i32) -> Option> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `remove` is never used [INFO] [stdout] --> src/linked_list/new_list.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 21 | impl ListNode { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 67 | fn remove(self, val: i32) -> Option> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.49s [INFO] running `Command { std: "docker" "inspect" "eb85ac5e203b5d49b04e2c2caa5b3017528541b5071bba158572db329a561ed4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb85ac5e203b5d49b04e2c2caa5b3017528541b5071bba158572db329a561ed4", kill_on_drop: false }` [INFO] [stdout] eb85ac5e203b5d49b04e2c2caa5b3017528541b5071bba158572db329a561ed4