[INFO] cloning repository https://github.com/fredlahde/kermit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fredlahde/kermit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffredlahde%2Fkermit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffredlahde%2Fkermit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 520044f50fa25a2e5444d5dbd36fa494dced98af
[INFO] checking fredlahde/kermit against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffredlahde%2Fkermit" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fredlahde/kermit on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fredlahde/kermit
[INFO] finished tweaking git repo https://github.com/fredlahde/kermit
[INFO] tweaked toml for git repo https://github.com/fredlahde/kermit written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fredlahde/kermit 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.78
[INFO] [stderr]   Downloaded walkdir v2.2.5
[INFO] [stderr]   Downloaded same-file v1.0.3
[INFO] [stderr]   Downloaded cc v1.0.24
[INFO] [stderr]   Downloaded serde v1.0.78
[INFO] [stderr]   Downloaded serde_json v1.0.27
[INFO] [stderr]   Downloaded syn v0.15.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df6d88e83d2716953f00af0887b9d080b37c01b9e34a68dba06bbd0d33783dd5
[INFO] running `Command { std: "docker" "start" "-a" "df6d88e83d2716953f00af0887b9d080b37c01b9e34a68dba06bbd0d33783dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df6d88e83d2716953f00af0887b9d080b37c01b9e34a68dba06bbd0d33783dd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df6d88e83d2716953f00af0887b9d080b37c01b9e34a68dba06bbd0d33783dd5", kill_on_drop: false }`
[INFO] [stdout] df6d88e83d2716953f00af0887b9d080b37c01b9e34a68dba06bbd0d33783dd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d14a47e90f304b2fb46372485c704a98e936ab713bc804d69330feedfb3239e0
[INFO] running `Command { std: "docker" "start" "-a" "d14a47e90f304b2fb46372485c704a98e936ab713bc804d69330feedfb3239e0", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling cc v1.0.24
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking same-file v1.0.3
[INFO] [stderr]     Checking walkdir v2.2.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn v0.15.3
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.78
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.27
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking kermit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let args: Vec<String> = env::args().collect();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ComposeRunner` is never constructed
[INFO] [stdout]  --> src/compose_runner.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct ComposeRunner {}
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/compose_scanner.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl ScanResult {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 14 |     fn new(path: &str) -> ScanResult {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `scan` and `to_file` are never used
[INFO] [stdout]   --> src/compose_scanner.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Scanner {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 28 |     pub fn scan(&self, base_path: &str) -> Result<Vec<ScanResult>, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn to_file(&self, path: &str, out_file: &str) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_compose_directory` is never used
[INFO] [stdout]   --> src/compose_scanner.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn check_compose_directory(path: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ComposeRunner` is never constructed
[INFO] [stdout]  --> src/compose_runner.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct ComposeRunner {}
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/compose_scanner.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl ScanResult {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 14 |     fn new(path: &str) -> ScanResult {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `scan` and `to_file` are never used
[INFO] [stdout]   --> src/compose_scanner.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Scanner {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 28 |     pub fn scan(&self, base_path: &str) -> Result<Vec<ScanResult>, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn to_file(&self, path: &str, out_file: &str) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_compose_directory` is never used
[INFO] [stdout]   --> src/compose_scanner.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn check_compose_directory(path: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "d14a47e90f304b2fb46372485c704a98e936ab713bc804d69330feedfb3239e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14a47e90f304b2fb46372485c704a98e936ab713bc804d69330feedfb3239e0", kill_on_drop: false }`
[INFO] [stdout] d14a47e90f304b2fb46372485c704a98e936ab713bc804d69330feedfb3239e0