[INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] fatal: write error: No space left on device [INFO] [stderr] fatal: fetch-pack: invalid index-pack output [WARN] Retrying crate fetch in 3 seconds (attempt 1) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] fatal: write error: No space left on device [INFO] [stderr] fatal: fetch-pack: invalid index-pack output [WARN] Retrying crate fetch in 3 seconds (attempt 2) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] error: copy-fd: write returned: No space left on device [INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-commit.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures/hooks/pre-commit.sample': No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 3) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] error: copy-fd: write returned: No space left on device [INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/fsmonitor-watchman.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures/hooks/fsmonitor-watchman.sample': No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 4) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 5) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 6) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 7) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 8) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 9) [INFO] cloning repository https://github.com/dkoytrom/data_structures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dkoytrom/data_structures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2ec6fb40995285b89a074ee03f49041a711fde2a [INFO] checking dkoytrom/data_structures against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkoytrom%2Fdata_structures" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/dkoytrom/data_structures [INFO] finished tweaking git repo https://github.com/dkoytrom/data_structures [INFO] tweaked toml for git repo https://github.com/dkoytrom/data_structures written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dkoytrom/data_structures on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/dkoytrom/data_structures 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 134bf22b1e59cf1f25d75d570dc784a37f3f61193ad81476a5fae1047b8190cb [INFO] running `Command { std: "docker" "start" "-a" "134bf22b1e59cf1f25d75d570dc784a37f3f61193ad81476a5fae1047b8190cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "134bf22b1e59cf1f25d75d570dc784a37f3f61193ad81476a5fae1047b8190cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "134bf22b1e59cf1f25d75d570dc784a37f3f61193ad81476a5fae1047b8190cb", kill_on_drop: false }` [INFO] [stdout] 134bf22b1e59cf1f25d75d570dc784a37f3f61193ad81476a5fae1047b8190cb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7540a7fe9e94d192f555ab6f5a9baf30193dc4fdc2d2f90e10fd52be27298f30 [INFO] running `Command { std: "docker" "start" "-a" "7540a7fe9e94d192f555ab6f5a9baf30193dc4fdc2d2f90e10fd52be27298f30", kill_on_drop: false }` [INFO] [stderr] Checking smart_pointers v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/btree.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl BTree { [INFO] [stdout] | ------------------------------------------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn print(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/btree.rs:118:8 [INFO] [stdout] | [INFO] [stdout] 54 | impl Node { [INFO] [stdout] | ----------------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 118 | fn print(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/list.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ListNode { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 8 | data: T, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Iter` is never constructed [INFO] [stdout] --> src/list.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct Iter<'a, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IterMut` is never constructed [INFO] [stdout] --> src/list.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub struct IterMut<'a, T> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `push_front`, `iter`, `iter_mut`, and `print` are never used [INFO] [stdout] --> src/list.rs:81:12 [INFO] [stdout] | [INFO] [stdout] 72 | impl List { [INFO] [stdout] | ---------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 81 | pub fn push_front(&mut self, data: T) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 140 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 149 | pub fn print(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/btree.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl BTree { [INFO] [stdout] | ------------------------------------------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn print(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/btree.rs:118:8 [INFO] [stdout] | [INFO] [stdout] 54 | impl Node { [INFO] [stdout] | ----------------------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 118 | fn print(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/list.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ListNode { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 8 | data: T, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Iter` is never constructed [INFO] [stdout] --> src/list.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct Iter<'a, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IterMut` is never constructed [INFO] [stdout] --> src/list.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub struct IterMut<'a, T> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `push_front`, `iter`, `iter_mut`, and `print` are never used [INFO] [stdout] --> src/list.rs:81:12 [INFO] [stdout] | [INFO] [stdout] 72 | impl List { [INFO] [stdout] | ---------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 81 | pub fn push_front(&mut self, data: T) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 140 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 149 | pub fn print(&self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/list.rs:163:17 [INFO] [stdout] | [INFO] [stdout] 163 | let _ = mem::forget(self); [INFO] [stdout] | ^^^^^^^^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut List` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(forgetting_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/list.rs:163:17 [INFO] [stdout] | [INFO] [stdout] 163 | let _ = mem::forget(self); [INFO] [stdout] | ^^^^^^^^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&mut List` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(forgetting_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] running `Command { std: "docker" "inspect" "7540a7fe9e94d192f555ab6f5a9baf30193dc4fdc2d2f90e10fd52be27298f30", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7540a7fe9e94d192f555ab6f5a9baf30193dc4fdc2d2f90e10fd52be27298f30", kill_on_drop: false }` [INFO] [stdout] 7540a7fe9e94d192f555ab6f5a9baf30193dc4fdc2d2f90e10fd52be27298f30