[INFO] fetching crate hawk_rs 0.0.1...
[INFO] checking hawk_rs-0.0.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate hawk_rs 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate hawk_rs 0.0.1
[INFO] finished tweaking crates.io crate hawk_rs 0.0.1
[INFO] tweaked toml for crates.io crate hawk_rs 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hawk_rs 0.0.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hawk_rs 0.0.1 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15a80373a9c442f65d9e83d43510070474b858e8887d240948675bf750cc1c04
[INFO] running `Command { std: "docker" "start" "-a" "15a80373a9c442f65d9e83d43510070474b858e8887d240948675bf750cc1c04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15a80373a9c442f65d9e83d43510070474b858e8887d240948675bf750cc1c04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15a80373a9c442f65d9e83d43510070474b858e8887d240948675bf750cc1c04", kill_on_drop: false }`
[INFO] [stdout] 15a80373a9c442f65d9e83d43510070474b858e8887d240948675bf750cc1c04
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 255c1e94d3e0ebd9b57f91a8b5a7913baa59bce1cfab7021507f195a25e941ba
[INFO] running `Command { std: "docker" "start" "-a" "255c1e94d3e0ebd9b57f91a8b5a7913baa59bce1cfab7021507f195a25e941ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking hawk_rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Git` is never constructed
[INFO] [stdout]  --> src/module/git.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Git {}
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print_version` and `get_version` are never used
[INFO] [stdout]   --> src/module/git.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Git {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] 13 |     // print git version
[INFO] [stdout] 14 |     pub fn print_version(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn get_version(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_config` is never used
[INFO] [stdout]   --> src/util/environ.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn get_config(key: &str) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `path_exists` is never used
[INFO] [stdout]   --> src/util/io.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn path_exists(path: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_file` is never used
[INFO] [stdout]   --> src/util/io.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn write_file(path: &str, content: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_file` is never used
[INFO] [stdout]   --> src/util/io.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn delete_file(path: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]   --> src/util/io.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn read_file(path: &str) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_dir` is never used
[INFO] [stdout]   --> src/util/io.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn is_dir(path: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Git` is never constructed
[INFO] [stdout]  --> src/module/git.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Git {}
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print_version` and `get_version` are never used
[INFO] [stdout]   --> src/module/git.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Git {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] 13 |     // print git version
[INFO] [stdout] 14 |     pub fn print_version(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn get_version(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.49s
[INFO] running `Command { std: "docker" "inspect" "255c1e94d3e0ebd9b57f91a8b5a7913baa59bce1cfab7021507f195a25e941ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "255c1e94d3e0ebd9b57f91a8b5a7913baa59bce1cfab7021507f195a25e941ba", kill_on_drop: false }`
[INFO] [stdout] 255c1e94d3e0ebd9b57f91a8b5a7913baa59bce1cfab7021507f195a25e941ba