[INFO] cloning repository https://github.com/maliByatzes/kompressor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maliByatzes/kompressor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmaliByatzes%2Fkompressor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmaliByatzes%2Fkompressor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8ba5fd3bbd58d71a7c04147a393fa0462159323
[INFO] checking maliByatzes/kompressor against try#943e2200e35c3825486c4671b6cab0107a07f8c1 for pr-148952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmaliByatzes%2Fkompressor" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maliByatzes/kompressor
[INFO] finished tweaking git repo https://github.com/maliByatzes/kompressor
[INFO] tweaked toml for git repo https://github.com/maliByatzes/kompressor written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maliByatzes/kompressor on toolchain 943e2200e35c3825486c4671b6cab0107a07f8c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maliByatzes/kompressor 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" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking maliByatzes/kompressor against try#943e2200e35c3825486c4671b6cab0107a07f8c1 for pr-148952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmaliByatzes%2Fkompressor" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maliByatzes/kompressor
[INFO] finished tweaking git repo https://github.com/maliByatzes/kompressor
[INFO] tweaked toml for git repo https://github.com/maliByatzes/kompressor written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maliByatzes/kompressor on toolchain 943e2200e35c3825486c4671b6cab0107a07f8c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maliByatzes/kompressor 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" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c989834add02e2268d77f617a46708348fcf103ea3fdd4b3f58680120bc7a418
[INFO] running `Command { std: "docker" "start" "-a" "c989834add02e2268d77f617a46708348fcf103ea3fdd4b3f58680120bc7a418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c989834add02e2268d77f617a46708348fcf103ea3fdd4b3f58680120bc7a418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c989834add02e2268d77f617a46708348fcf103ea3fdd4b3f58680120bc7a418", kill_on_drop: false }`
[INFO] [stdout] c989834add02e2268d77f617a46708348fcf103ea3fdd4b3f58680120bc7a418
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22db484920a6dba8875c51afef9721bfa7ae7dd2f5d3aab6838eac4502e741e9
[INFO] running `Command { std: "docker" "start" "-a" "22db484920a6dba8875c51afef9721bfa7ae7dd2f5d3aab6838eac4502e741e9", kill_on_drop: false }`
[INFO] [stderr]     Checking kompressor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BinaryTree` is never constructed
[INFO] [stdout]    --> src/compress.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct BinaryTree<T: Ord> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, `has`, and `len` are never used
[INFO] [stdout]    --> src/compress.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | impl<T: Ord> BinaryTree<T> {
[INFO] [stdout]     | -------------------------- associated items in this implementation
[INFO] [stdout] 142 |     fn new(node: Node<T>) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     fn insert(&mut self, value: T) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     fn has(&self, value: &T) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert`, `has`, and `len` are never used
[INFO] [stdout]    --> src/compress.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl<T: Ord> Subtree<T> {
[INFO] [stdout]     | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 166 |     fn insert(&mut self, value: T) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn has(&self, value: &T) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BinaryTree` is never constructed
[INFO] [stdout]    --> src/compress.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct BinaryTree<T: Ord> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, `has`, and `len` are never used
[INFO] [stdout]    --> src/compress.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 141 | impl<T: Ord> BinaryTree<T> {
[INFO] [stdout]     | -------------------------- associated items in this implementation
[INFO] [stdout] 142 |     fn new(node: Node<T>) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 148 |     fn insert(&mut self, value: T) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     fn has(&self, value: &T) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert`, `has`, and `len` are never used
[INFO] [stdout]    --> src/compress.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 161 | impl<T: Ord> Subtree<T> {
[INFO] [stdout]     | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 166 |     fn insert(&mut self, value: T) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn has(&self, value: &T) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "22db484920a6dba8875c51afef9721bfa7ae7dd2f5d3aab6838eac4502e741e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22db484920a6dba8875c51afef9721bfa7ae7dd2f5d3aab6838eac4502e741e9", kill_on_drop: false }`
[INFO] [stdout] 22db484920a6dba8875c51afef9721bfa7ae7dd2f5d3aab6838eac4502e741e9
