[INFO] updating cached repository https://github.com/kokjo/cfgtool
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 256374a9e1c968fbf8b67ebe2388631ee556da2d
[INFO] checking kokjo/cfgtool against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkokjo%2Fcfgtool" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kokjo/cfgtool on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kokjo/cfgtool
[INFO] finished tweaking git repo https://github.com/kokjo/cfgtool
[INFO] tweaked toml for git repo https://github.com/kokjo/cfgtool written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/kokjo/cfgtool already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5c1018ab7ab00ba354f2b5b74fe88a1ae79fe430412635389130f2bc6f5af8f2
[INFO] running `"docker" "start" "-a" "5c1018ab7ab00ba354f2b5b74fe88a1ae79fe430412635389130f2bc6f5af8f2"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling capstone-sys v0.8.0
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking dot v0.1.4
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling scroll_derive v0.9.4
[INFO] [stderr]     Checking capstone v0.4.0
[INFO] [stderr]     Checking scroll v0.9.0
[INFO] [stderr]     Checking goblin v0.0.17
[INFO] [stderr]     Checking cfgtool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `goblin::*`
[INFO] [stderr]  --> src/addressspace.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use goblin::*;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/addressspace.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `goblin::*`
[INFO] [stderr]  --> src/addressspace.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use goblin::*;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/addressspace.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/addressspace.rs:62:20
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn read(&self, address:u64, buffer : &mut [u8]){
[INFO] [stderr]    |                    ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]   --> src/addressspace.rs:62:33
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn read(&self, address:u64, buffer : &mut [u8]){
[INFO] [stderr]    |                                 ^^^^^^ help: consider prefixing with an underscore: `_buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/addressspace.rs:62:20
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn read(&self, address:u64, buffer : &mut [u8]){
[INFO] [stderr]    |                    ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]   --> src/addressspace.rs:62:33
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn read(&self, address:u64, buffer : &mut [u8]){
[INFO] [stderr]    |                                 ^^^^^^ help: consider prefixing with an underscore: `_buffer`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/basicblock.rs:57:21
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 let mut prevs = prevs_map.entry(next).or_insert(Vec::new());
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/basicblock.rs:57:21
[INFO] [stderr]    |
[INFO] [stderr] 57 |                 let mut prevs = prevs_map.entry(next).or_insert(Vec::new());
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.37s
[INFO] running `"docker" "inspect" "5c1018ab7ab00ba354f2b5b74fe88a1ae79fe430412635389130f2bc6f5af8f2"`
[INFO] running `"docker" "rm" "-f" "5c1018ab7ab00ba354f2b5b74fe88a1ae79fe430412635389130f2bc6f5af8f2"`
[INFO] [stdout] 5c1018ab7ab00ba354f2b5b74fe88a1ae79fe430412635389130f2bc6f5af8f2