[INFO] cloning repository https://github.com/JKomieter/Filer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JKomieter/Filer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKomieter%2FFiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKomieter%2FFiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e09ece3deb4faf54fb0d49d4ce7c47cff1e2b96c
[INFO] checking JKomieter/Filer against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJKomieter%2FFiler" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JKomieter/Filer
[INFO] finished tweaking git repo https://github.com/JKomieter/Filer
[INFO] tweaked toml for git repo https://github.com/JKomieter/Filer written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JKomieter/Filer on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JKomieter/Filer 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-targets v0.48.5
[INFO] [stderr]   Downloaded colored v2.1.0
[INFO] [stderr]   Downloaded difference v2.0.0
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.48.5
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.48.5
[INFO] [stderr]   Downloaded windows_i686_gnu v0.48.5
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.48.5
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.48.5
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.48.5
[INFO] [stderr]   Downloaded windows_i686_msvc v0.48.5
[INFO] [stderr]   Downloaded windows-sys v0.48.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c1c561f5b1c804c561c835f7d0917f4ed9c5259723a224eb1f9159439019b5a
[INFO] running `Command { std: "docker" "start" "-a" "2c1c561f5b1c804c561c835f7d0917f4ed9c5259723a224eb1f9159439019b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c1c561f5b1c804c561c835f7d0917f4ed9c5259723a224eb1f9159439019b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c1c561f5b1c804c561c835f7d0917f4ed9c5259723a224eb1f9159439019b5a", kill_on_drop: false }`
[INFO] [stdout] 2c1c561f5b1c804c561c835f7d0917f4ed9c5259723a224eb1f9159439019b5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3511a42ccc745cdafc357370ab3eed3de47d737583a5d87a6547f8ef3358217
[INFO] running `Command { std: "docker" "start" "-a" "a3511a42ccc745cdafc357370ab3eed3de47d737583a5d87a6547f8ef3358217", kill_on_drop: false }`
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking filer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `handle_cmd` is never used
[INFO] [stdout]  --> src/file_handlers.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn handle_cmd(cmd: &str, filename: &str) -> Result<(), &'static str> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_contents` is never used
[INFO] [stdout]   --> src/file_handlers.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn read_file_contents(filename: &str) -> Result<String, &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_file` is never used
[INFO] [stdout]   --> src/file_handlers.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn create_file(filename: &str) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_file_version` is never used
[INFO] [stdout]   --> src/file_handlers.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn create_file_version(filename: &str) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_file` is never used
[INFO] [stdout]   --> src/file_handlers.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn delete_file(filename: &str) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compare_versions` is never used
[INFO] [stdout]   --> src/file_handlers.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub fn compare_versions(filename: &str) -> Result<(), &'static str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_cmd` is never used
[INFO] [stdout]  --> src/file_handlers.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn handle_cmd(cmd: &str, filename: &str) -> Result<(), &'static str> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, process};
[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: `env`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, process};
[INFO] [stdout]   |           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "a3511a42ccc745cdafc357370ab3eed3de47d737583a5d87a6547f8ef3358217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3511a42ccc745cdafc357370ab3eed3de47d737583a5d87a6547f8ef3358217", kill_on_drop: false }`
[INFO] [stdout] a3511a42ccc745cdafc357370ab3eed3de47d737583a5d87a6547f8ef3358217