[INFO] cloning repository https://github.com/LyonSyonII/MyVec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LyonSyonII/MyVec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyonSyonII%2FMyVec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyonSyonII%2FMyVec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a679f3a939ba807ad2f735b04f79a03432c2fac
[INFO] checking LyonSyonII/MyVec against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyonSyonII%2FMyVec" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LyonSyonII/MyVec on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LyonSyonII/MyVec
[INFO] finished tweaking git repo https://github.com/LyonSyonII/MyVec
[INFO] tweaked toml for git repo https://github.com/LyonSyonII/MyVec written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LyonSyonII/MyVec 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking LyonSyonII/MyVec against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLyonSyonII%2FMyVec" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LyonSyonII/MyVec on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LyonSyonII/MyVec
[INFO] finished tweaking git repo https://github.com/LyonSyonII/MyVec
[INFO] tweaked toml for git repo https://github.com/LyonSyonII/MyVec written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LyonSyonII/MyVec 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" "+09bc67b9158392361780e779d32997f14cc75c39" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c122d608db9e8e8cf41865838c06d66c941dc103f110aad61d25b1e60fa1aee
[INFO] running `Command { std: "docker" "start" "-a" "0c122d608db9e8e8cf41865838c06d66c941dc103f110aad61d25b1e60fa1aee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c122d608db9e8e8cf41865838c06d66c941dc103f110aad61d25b1e60fa1aee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c122d608db9e8e8cf41865838c06d66c941dc103f110aad61d25b1e60fa1aee", kill_on_drop: false }`
[INFO] [stdout] 0c122d608db9e8e8cf41865838c06d66c941dc103f110aad61d25b1e60fa1aee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e83d5ce7e63b82cf3c86dbfbc72335653ac34bf1f3f3622f569d3e04736c7a61
[INFO] running `Command { std: "docker" "start" "-a" "e83d5ce7e63b82cf3c86dbfbc72335653ac34bf1f3f3622f569d3e04736c7a61", kill_on_drop: false }`
[INFO] [stderr]     Checking mycollections v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `let...else` pattern
[INFO] [stdout]    --> src/map.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let bucket = self.buckets.get(self.buckets.len() / 2) else {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `else` clause is useless
[INFO] [stdout]     = help: consider removing the `else` clause
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bucket`
[INFO] [stdout]    --> src/map.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let bucket = self.buckets.get(self.buckets.len() / 2) else {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bucket`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `let...else` pattern
[INFO] [stdout]    --> src/map.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let bucket = self.buckets.get(self.buckets.len() / 2) else {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `else` clause is useless
[INFO] [stdout]     = help: consider removing the `else` clause
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bucket`
[INFO] [stdout]    --> src/map.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let bucket = self.buckets.get(self.buckets.len() / 2) else {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_bucket`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreeMap` is never constructed
[INFO] [stdout]    --> src/map.rs:148:16
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub struct TreeMap<K, V> {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `insert` are never used
[INFO] [stdout]    --> src/map.rs:154:22
[INFO] [stdout]     |
[INFO] [stdout] 153 |     impl<K, V> TreeMap<K, V> {
[INFO] [stdout]     |     ------------------------ associated items in this implementation
[INFO] [stdout] 154 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |         pub fn insert(&mut self, key: K, value: V) where K: std::cmp::PartialOrd {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreeMap` is never constructed
[INFO] [stdout]    --> src/map.rs:148:16
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub struct TreeMap<K, V> {
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `insert` are never used
[INFO] [stdout]    --> src/map.rs:154:22
[INFO] [stdout]     |
[INFO] [stdout] 153 |     impl<K, V> TreeMap<K, V> {
[INFO] [stdout]     |     ------------------------ associated items in this implementation
[INFO] [stdout] 154 |         pub const fn new() -> Self {
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |         pub fn insert(&mut self, key: K, value: V) where K: std::cmp::PartialOrd {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "e83d5ce7e63b82cf3c86dbfbc72335653ac34bf1f3f3622f569d3e04736c7a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e83d5ce7e63b82cf3c86dbfbc72335653ac34bf1f3f3622f569d3e04736c7a61", kill_on_drop: false }`
[INFO] [stdout] e83d5ce7e63b82cf3c86dbfbc72335653ac34bf1f3f3622f569d3e04736c7a61
