[INFO] fetching crate double_linkedlist 0.1.2... [INFO] testing double_linkedlist-0.1.2 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate double_linkedlist 0.1.2 into /workspace/builds/worker-105/source [INFO] validating manifest of crates.io crate double_linkedlist 0.1.2 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate double_linkedlist 0.1.2 [INFO] finished tweaking crates.io crate double_linkedlist 0.1.2 [INFO] tweaked toml for crates.io crate double_linkedlist 0.1.2 written to /workspace/builds/worker-105/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7b37044ffa78a1452b4c50dfac0562eb438794b411ecc9a4806e93e06bd4f280 [INFO] running `Command { std: "docker" "start" "-a" "7b37044ffa78a1452b4c50dfac0562eb438794b411ecc9a4806e93e06bd4f280", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b37044ffa78a1452b4c50dfac0562eb438794b411ecc9a4806e93e06bd4f280", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b37044ffa78a1452b4c50dfac0562eb438794b411ecc9a4806e93e06bd4f280", kill_on_drop: false }` [INFO] [stdout] 7b37044ffa78a1452b4c50dfac0562eb438794b411ecc9a4806e93e06bd4f280 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 877d2a7d7be2f08377c953da2592bf29440564acd1b237505d37686c964bd5f0 [INFO] running `Command { std: "docker" "start" "-a" "877d2a7d7be2f08377c953da2592bf29440564acd1b237505d37686c964bd5f0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling double_linkedlist v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: type `Double_Node` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Double_Node { [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleNode` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Double_LinkedList` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | pub struct Double_LinkedList { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedList` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Double_LinkedList_Iterator` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:83:12 [INFO] [stdout] | [INFO] [stdout] 83 | pub struct Double_LinkedList_Iterator { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedListIterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> src/lib.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | let mut result = None; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.03s [INFO] running `Command { std: "docker" "inspect" "877d2a7d7be2f08377c953da2592bf29440564acd1b237505d37686c964bd5f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "877d2a7d7be2f08377c953da2592bf29440564acd1b237505d37686c964bd5f0", kill_on_drop: false }` [INFO] [stdout] 877d2a7d7be2f08377c953da2592bf29440564acd1b237505d37686c964bd5f0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5704122e5a1fb6e20e080755311b42f32bea2c060b9f1142fdf0bfe5fbbf98b8 [INFO] running `Command { std: "docker" "start" "-a" "5704122e5a1fb6e20e080755311b42f32bea2c060b9f1142fdf0bfe5fbbf98b8", kill_on_drop: false }` [INFO] [stdout] warning: type `Double_Node` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Double_Node { [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleNode` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling double_linkedlist v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: type `Double_LinkedList` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | pub struct Double_LinkedList { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedList` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Double_LinkedList_Iterator` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:83:12 [INFO] [stdout] | [INFO] [stdout] 83 | pub struct Double_LinkedList_Iterator { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedListIterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> src/lib.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | let mut result = None; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Double_Node` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Double_Node { [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleNode` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Double_LinkedList` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | pub struct Double_LinkedList { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedList` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Double_LinkedList_Iterator` should have an upper camel case name [INFO] [stdout] --> src/lib.rs:83:12 [INFO] [stdout] | [INFO] [stdout] 83 | pub struct Double_LinkedList_Iterator { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedListIterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> src/lib.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | let mut result = None; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `test_double_node` [INFO] [stdout] --> src/lib.rs:120:17 [INFO] [stdout] | [INFO] [stdout] 120 | let mut test_double_node = Double_Node::new(10); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_double_node` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | let mut test_double_node = Double_Node::new(10); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.53s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/double_linkedlist-fefe2114a1e8c670) [INFO] running `Command { std: "docker" "inspect" "5704122e5a1fb6e20e080755311b42f32bea2c060b9f1142fdf0bfe5fbbf98b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5704122e5a1fb6e20e080755311b42f32bea2c060b9f1142fdf0bfe5fbbf98b8", kill_on_drop: false }` [INFO] [stdout] 5704122e5a1fb6e20e080755311b42f32bea2c060b9f1142fdf0bfe5fbbf98b8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b5293e96f22daefe90ea4aa1a15b0498238d085568d57e00bf8c09d5c0bc7cac [INFO] running `Command { std: "docker" "start" "-a" "b5293e96f22daefe90ea4aa1a15b0498238d085568d57e00bf8c09d5c0bc7cac", kill_on_drop: false }` [INFO] [stderr] warning: type `Double_Node` should have an upper camel case name [INFO] [stderr] --> src/lib.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | struct Double_Node { [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleNode` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: type `Double_LinkedList` should have an upper camel case name [INFO] [stderr] --> src/lib.rs:24:12 [INFO] [stderr] | [INFO] [stderr] 24 | pub struct Double_LinkedList { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedList` [INFO] [stderr] [INFO] [stderr] warning: type `Double_LinkedList_Iterator` should have an upper camel case name [INFO] [stderr] --> src/lib.rs:83:12 [INFO] [stderr] | [INFO] [stderr] 83 | pub struct Double_LinkedList_Iterator { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedListIterator` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> src/lib.rs:55:17 [INFO] [stderr] | [INFO] [stderr] 55 | let mut result = None; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: `double_linkedlist` (lib) generated 4 warnings [INFO] [stderr] warning: unused variable: `test_double_node` [INFO] [stderr] --> src/lib.rs:120:17 [INFO] [stderr] | [INFO] [stderr] 120 | let mut test_double_node = Double_Node::new(10); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_double_node` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:120:13 [INFO] [stderr] | [INFO] [stderr] 120 | let mut test_double_node = Double_Node::new(10); [INFO] [stderr] | ----^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `double_linkedlist` (lib test) generated 6 warnings (4 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/double_linkedlist-fefe2114a1e8c670) [INFO] [stderr] Doc-tests double_linkedlist [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::test_double_linkedlist_iterator ... ok [INFO] [stdout] test tests::test_double_linkedlist_pop ... ok [INFO] [stdout] test tests::test_double_node_new ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] warning: type `Double_Node` should have an upper camel case name [INFO] [stderr] --> /opt/rustwide/workdir/src/lib.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | struct Double_Node { [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleNode` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: type `Double_LinkedList` should have an upper camel case name [INFO] [stderr] --> /opt/rustwide/workdir/src/lib.rs:24:12 [INFO] [stderr] | [INFO] [stderr] 24 | pub struct Double_LinkedList { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedList` [INFO] [stderr] [INFO] [stderr] warning: type `Double_LinkedList_Iterator` should have an upper camel case name [INFO] [stderr] --> /opt/rustwide/workdir/src/lib.rs:83:12 [INFO] [stderr] | [INFO] [stderr] 83 | pub struct Double_LinkedList_Iterator { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DoubleLinkedListIterator` [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b5293e96f22daefe90ea4aa1a15b0498238d085568d57e00bf8c09d5c0bc7cac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5293e96f22daefe90ea4aa1a15b0498238d085568d57e00bf8c09d5c0bc7cac", kill_on_drop: false }` [INFO] [stdout] b5293e96f22daefe90ea4aa1a15b0498238d085568d57e00bf8c09d5c0bc7cac