[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 { [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 TreeMap { [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 { [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 TreeMap { [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