[INFO] fetching crate double_linkedlist 0.1.2... [INFO] testing double_linkedlist-0.1.2 against beta-2021-01-01 for beta-1.50-1 [INFO] extracting crate double_linkedlist 0.1.2 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate double_linkedlist 0.1.2 on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e4e88c5f39d6fa254becea4e07fcd39afe3eff56816a459ca5d16d6566fcfad0 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e4e88c5f39d6fa254becea4e07fcd39afe3eff56816a459ca5d16d6566fcfad0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e4e88c5f39d6fa254becea4e07fcd39afe3eff56816a459ca5d16d6566fcfad0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4e88c5f39d6fa254becea4e07fcd39afe3eff56816a459ca5d16d6566fcfad0", kill_on_drop: false }` [INFO] [stdout] e4e88c5f39d6fa254becea4e07fcd39afe3eff56816a459ca5d16d6566fcfad0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1a882d4d084e0829285ba8ce3fdd8c873ae66a2ca100a80b23dc39d7633fdb42 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1a882d4d084e0829285ba8ce3fdd8c873ae66a2ca100a80b23dc39d7633fdb42", kill_on_drop: false }` [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:55:13 [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 0.66s [INFO] running `Command { std: "docker" "inspect" "1a882d4d084e0829285ba8ce3fdd8c873ae66a2ca100a80b23dc39d7633fdb42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a882d4d084e0829285ba8ce3fdd8c873ae66a2ca100a80b23dc39d7633fdb42", kill_on_drop: false }` [INFO] [stdout] 1a882d4d084e0829285ba8ce3fdd8c873ae66a2ca100a80b23dc39d7633fdb42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a21fd59a671dc4e3ca40b9b440610fb00e28b378abe700aaef5fb0ea8f6bb134 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a21fd59a671dc4e3ca40b9b440610fb00e28b378abe700aaef5fb0ea8f6bb134", 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:55:13 [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:55:13 [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:120:13 [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 0.95s [INFO] running `Command { std: "docker" "inspect" "a21fd59a671dc4e3ca40b9b440610fb00e28b378abe700aaef5fb0ea8f6bb134", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a21fd59a671dc4e3ca40b9b440610fb00e28b378abe700aaef5fb0ea8f6bb134", kill_on_drop: false }` [INFO] [stdout] a21fd59a671dc4e3ca40b9b440610fb00e28b378abe700aaef5fb0ea8f6bb134 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 162d6ceb048eb852705e5f4b332e98acbb1bb3c3f89c3009075caab913949484 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "162d6ceb048eb852705e5f4b332e98acbb1bb3c3f89c3009075caab913949484", 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:55:13 [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: 4 warnings emitted [INFO] [stderr] [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:55:13 [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: unused variable: `test_double_node` [INFO] [stderr] --> src/lib.rs:120:13 [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: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/double_linkedlist-a7db57b825af8de8 [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::test_double_linkedlist_iterator ... ok [INFO] [stdout] test tests::test_double_node_new ... ok [INFO] [stdout] test tests::test_double_linkedlist_pop ... 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] Doc-tests double_linkedlist [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" "162d6ceb048eb852705e5f4b332e98acbb1bb3c3f89c3009075caab913949484", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "162d6ceb048eb852705e5f4b332e98acbb1bb3c3f89c3009075caab913949484", kill_on_drop: false }` [INFO] [stdout] 162d6ceb048eb852705e5f4b332e98acbb1bb3c3f89c3009075caab913949484