[INFO] updating cached repository https://github.com/StyMaar/dupdirfinder [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] 178c31d8cfcfd542c42cd6eef677f00bbf047332 [INFO] checking StyMaar/dupdirfinder against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStyMaar%2Fdupdirfinder" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/StyMaar/dupdirfinder on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7 [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/StyMaar/dupdirfinder [INFO] finished tweaking git repo https://github.com/StyMaar/dupdirfinder [INFO] tweaked toml for git repo https://github.com/StyMaar/dupdirfinder written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/StyMaar/dupdirfinder already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 7231ebf6842e01c0221426241278af480cedb8291c19d38ba911a872d28f66a7 [INFO] running `"docker" "start" "-a" "7231ebf6842e01c0221426241278af480cedb8291c19d38ba911a872d28f66a7"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling typenum v1.11.2 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking constant_time_eq v0.1.4 [INFO] [stderr] Checking byte-tools v0.1.3 [INFO] [stderr] Checking same-file v0.1.3 [INFO] [stderr] Checking unbytify v0.1.1 [INFO] [stderr] Compiling structopt-derive v0.1.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking walkdir v1.0.7 [INFO] [stderr] Checking generic-array v0.7.3 [INFO] [stderr] Checking crypto-mac v0.3.0 [INFO] [stderr] Checking digest v0.5.2 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking blake2 v0.5.2 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking structopt v0.1.7 [INFO] [stderr] Checking dupdirfinder v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unreachable call [INFO] [stderr] --> src/main.rs:206:10 [INFO] [stderr] | [INFO] [stderr] 206 | #[derive(StructOpt, Debug)] [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | unreachable call [INFO] [stderr] | any code following this expression is unreachable [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable call [INFO] [stderr] --> src/main.rs:206:10 [INFO] [stderr] | [INFO] [stderr] 206 | #[derive(StructOpt, Debug)] [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | unreachable call [INFO] [stderr] | any code following this expression is unreachable [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:155:21 [INFO] [stderr] | [INFO] [stderr] 155 | let mut entry = already_found_hashes.entry(children_hash.clone()); [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/main.rs:155:21 [INFO] [stderr] | [INFO] [stderr] 155 | let mut entry = already_found_hashes.entry(children_hash.clone()); [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: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(attr_literals)] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(attr_literals)] [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 12.69s [INFO] running `"docker" "inspect" "7231ebf6842e01c0221426241278af480cedb8291c19d38ba911a872d28f66a7"` [INFO] running `"docker" "rm" "-f" "7231ebf6842e01c0221426241278af480cedb8291c19d38ba911a872d28f66a7"` [INFO] [stdout] 7231ebf6842e01c0221426241278af480cedb8291c19d38ba911a872d28f66a7