[INFO] cloning repository https://github.com/ManjulaNishanth/io
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ManjulaNishanth/io" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManjulaNishanth%2Fio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManjulaNishanth%2Fio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24bad12464cacadfe7765c6bb18b197397d1d94a
[INFO] checking ManjulaNishanth/io against try#7424ce9ff9baac3e9d9f5dd3c85828cddea0134d for pr-136776-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FManjulaNishanth%2Fio" "/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/ManjulaNishanth/io
[INFO] finished tweaking git repo https://github.com/ManjulaNishanth/io
[INFO] tweaked toml for git repo https://github.com/ManjulaNishanth/io written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ManjulaNishanth/io on toolchain 7424ce9ff9baac3e9d9f5dd3c85828cddea0134d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7424ce9ff9baac3e9d9f5dd3c85828cddea0134d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ManjulaNishanth/io 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" "+7424ce9ff9baac3e9d9f5dd3c85828cddea0134d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+7424ce9ff9baac3e9d9f5dd3c85828cddea0134d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4782d20466d7eff66a8e93baeee890f3a98677d8d0831f6a6b0d59b86bd6431f
[INFO] running `Command { std: "docker" "start" "-a" "4782d20466d7eff66a8e93baeee890f3a98677d8d0831f6a6b0d59b86bd6431f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4782d20466d7eff66a8e93baeee890f3a98677d8d0831f6a6b0d59b86bd6431f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4782d20466d7eff66a8e93baeee890f3a98677d8d0831f6a6b0d59b86bd6431f", kill_on_drop: false }`
[INFO] [stdout] 4782d20466d7eff66a8e93baeee890f3a98677d8d0831f6a6b0d59b86bd6431f
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+7424ce9ff9baac3e9d9f5dd3c85828cddea0134d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 748881f5b1f4c4080016190bbd1fc5138e70e6e4eab73522bd58d58885323c42
[INFO] running `Command { std: "docker" "start" "-a" "748881f5b1f4c4080016190bbd1fc5138e70e6e4eab73522bd58d58885323c42", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]     Checking io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde_json::json`
[INFO] [stdout]   --> src/io/create_file.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     use serde_json::json;
[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: `super::*`
[INFO] [stdout]   --> src/io/create_file.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> src/io/create_file.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     use std::path::Path;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_file` is never used
[INFO] [stdout]   --> src/io/create_file.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn create_file(file_name: &PathBuf) -> Result<(), Error> {
[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 `file_open` is never used
[INFO] [stdout]   --> src/io/create_file.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn file_open(file_name: &PathBuf) -> Result<Option<String>, Error> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_metadata` is never used
[INFO] [stdout]   --> src/io/create_file.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn write_metadata(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apend_metadata` is never used
[INFO] [stdout]   --> src/io/create_file.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn apend_metadata(path: &PathBuf, input: &Value) -> Result<(), io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy_file` is never used
[INFO] [stdout]   --> src/io/create_file.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn copy_file(origin: &Path, destination: &Path) -> Result<(), io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_file` is never used
[INFO] [stdout]   --> src/io/create_file.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn remove_file(origin: &Path) -> Result<(), io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "748881f5b1f4c4080016190bbd1fc5138e70e6e4eab73522bd58d58885323c42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "748881f5b1f4c4080016190bbd1fc5138e70e6e4eab73522bd58d58885323c42", kill_on_drop: false }`
[INFO] [stdout] 748881f5b1f4c4080016190bbd1fc5138e70e6e4eab73522bd58d58885323c42
