[INFO] cloning repository https://github.com/Lukasz825700516/mcfrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lukasz825700516/mcfrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukasz825700516%2Fmcfrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukasz825700516%2Fmcfrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11bc09899c845cf3dd709ace32b2173b0255d0dc
[INFO] checking Lukasz825700516/mcfrs against master#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLukasz825700516%2Fmcfrs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lukasz825700516/mcfrs on toolchain 336209eef13882bd1e211b24779584cb7ef911eb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lukasz825700516/mcfrs
[INFO] finished tweaking git repo https://github.com/Lukasz825700516/mcfrs
[INFO] tweaked toml for git repo https://github.com/Lukasz825700516/mcfrs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Lukasz825700516/mcfrs 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" "+336209eef13882bd1e211b24779584cb7ef911eb" "fetch" "--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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c23fef787d7726e8548562f914171dc77b06c05aa72c5c02bfe097f0f503d5a
[INFO] running `Command { std: "docker" "start" "-a" "7c23fef787d7726e8548562f914171dc77b06c05aa72c5c02bfe097f0f503d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c23fef787d7726e8548562f914171dc77b06c05aa72c5c02bfe097f0f503d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c23fef787d7726e8548562f914171dc77b06c05aa72c5c02bfe097f0f503d5a", kill_on_drop: false }`
[INFO] [stdout] 7c23fef787d7726e8548562f914171dc77b06c05aa72c5c02bfe097f0f503d5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b9666ac5a5f7eeb3825f2565ebfbac87f3d1e26070e013c1bd59626a8a33297
[INFO] running `Command { std: "docker" "start" "-a" "5b9666ac5a5f7eeb3825f2565ebfbac87f3d1e26070e013c1bd59626a8a33297", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.8
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking mcfrs1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/mcfrs/compiler/macro_compiler.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, iter::{Peekable, Rev, repeat}, ops::Range};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/mcfrs/compiler/macro_compiler.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, iter::{Peekable, Rev, repeat}, ops::Range};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::digest::generic_array::sequence::Split`
[INFO] [stdout]  --> src/mcfrs/compiler/macro_compiler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sha2::digest::generic_array::sequence::Split;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::digest::generic_array::sequence::Split`
[INFO] [stdout]  --> src/mcfrs/compiler/macro_compiler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sha2::digest::generic_array::sequence::Split;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `burn` is never used
[INFO] [stdout]  --> src/mcfrs/compiler/scope_burner.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait ScopeBurnerExt<'a>: Sized + Iterator<Item = Scope<'a>> {
[INFO] [stdout]   |           -------------- method in this trait
[INFO] [stdout] 6 |     fn burn(self) -> Result<(), std::io::Error>;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `namespace` is never read
[INFO] [stdout]  --> src/mcfrs/compiler/macro_compiler.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct MacroDefinition<'a> {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 9 |     namespace: &'a Namespace<'a>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_reference_id` is never used
[INFO] [stdout]   --> src/mcfrs/scope.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<'a> Scope<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn set_reference_id(&mut self, id: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `burn` is never used
[INFO] [stdout]  --> src/mcfrs/compiler/scope_burner.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait ScopeBurnerExt<'a>: Sized + Iterator<Item = Scope<'a>> {
[INFO] [stdout]   |           -------------- method in this trait
[INFO] [stdout] 6 |     fn burn(self) -> Result<(), std::io::Error>;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `namespace` is never read
[INFO] [stdout]  --> src/mcfrs/compiler/macro_compiler.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct MacroDefinition<'a> {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 9 |     namespace: &'a Namespace<'a>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_reference_id` is never used
[INFO] [stdout]   --> src/mcfrs/scope.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<'a> Scope<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn set_reference_id(&mut self, id: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.51s
[INFO] running `Command { std: "docker" "inspect" "5b9666ac5a5f7eeb3825f2565ebfbac87f3d1e26070e013c1bd59626a8a33297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9666ac5a5f7eeb3825f2565ebfbac87f3d1e26070e013c1bd59626a8a33297", kill_on_drop: false }`
[INFO] [stdout] 5b9666ac5a5f7eeb3825f2565ebfbac87f3d1e26070e013c1bd59626a8a33297