[INFO] fetching crate skip-linked-list 0.1.1... [INFO] testing skip-linked-list-0.1.1 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate skip-linked-list 0.1.1 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate skip-linked-list 0.1.1 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 skip-linked-list 0.1.1 [INFO] finished tweaking crates.io crate skip-linked-list 0.1.1 [INFO] tweaked toml for crates.io crate skip-linked-list 0.1.1 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate crates.io crate skip-linked-list 0.1.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 396834a5a59089f1dd745c9038286761b1b4ac68823c802d24050314a09e9f2b [INFO] running `Command { std: "docker" "start" "-a" "396834a5a59089f1dd745c9038286761b1b4ac68823c802d24050314a09e9f2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "396834a5a59089f1dd745c9038286761b1b4ac68823c802d24050314a09e9f2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "396834a5a59089f1dd745c9038286761b1b4ac68823c802d24050314a09e9f2b", kill_on_drop: false }` [INFO] [stdout] 396834a5a59089f1dd745c9038286761b1b4ac68823c802d24050314a09e9f2b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 36f138699f8c641f725fad87c31159dd9b3d90d58429c52f0131f87424f23026 [INFO] running `Command { std: "docker" "start" "-a" "36f138699f8c641f725fad87c31159dd9b3d90d58429c52f0131f87424f23026", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling skip-linked-list v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `pop_back` [INFO] [stdout] --> src/list.rs:161:12 [INFO] [stdout] | [INFO] [stdout] 161 | pub fn pop_back(&mut self) -> T { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter` [INFO] [stdout] --> src/list.rs:170:12 [INFO] [stdout] | [INFO] [stdout] 170 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter_mut` [INFO] [stdout] --> src/list.rs:179:12 [INFO] [stdout] | [INFO] [stdout] 179 | pub fn iter_mut(&mut self) -> IterMut { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `into_iter` [INFO] [stdout] --> src/list.rs:188:12 [INFO] [stdout] | [INFO] [stdout] 188 | pub fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.21s [INFO] running `Command { std: "docker" "inspect" "36f138699f8c641f725fad87c31159dd9b3d90d58429c52f0131f87424f23026", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36f138699f8c641f725fad87c31159dd9b3d90d58429c52f0131f87424f23026", kill_on_drop: false }` [INFO] [stdout] 36f138699f8c641f725fad87c31159dd9b3d90d58429c52f0131f87424f23026 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 41d814e4c6cd9ed5ec6c083939b9dc3162901adfc76bd90922e62e53ed033f3e [INFO] running `Command { std: "docker" "start" "-a" "41d814e4c6cd9ed5ec6c083939b9dc3162901adfc76bd90922e62e53ed033f3e", kill_on_drop: false }` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling const_fn v0.4.4 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Compiling syn v1.0.55 [INFO] [stderr] Compiling itoa v0.4.6 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling regex-syntax v0.6.21 [INFO] [stderr] Compiling half v1.6.0 [INFO] [stderr] Compiling oorandom v11.1.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling plotters v0.2.15 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling crossbeam-epoch v0.9.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.0 [INFO] [stderr] Compiling criterion-plot v0.4.3 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling bstr v0.2.14 [INFO] [stderr] Compiling serde_cbor v0.11.1 [INFO] [stderr] Compiling tinytemplate v1.1.0 [INFO] [stderr] Compiling csv v1.1.5 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling criterion v0.3.3 [INFO] [stderr] Compiling skip-linked-list v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1m 20s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/skip_linked_list-679aab9e6f2bf671) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/skip_linked_list-9e6c0943376e64ba) [INFO] running `Command { std: "docker" "inspect" "41d814e4c6cd9ed5ec6c083939b9dc3162901adfc76bd90922e62e53ed033f3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41d814e4c6cd9ed5ec6c083939b9dc3162901adfc76bd90922e62e53ed033f3e", kill_on_drop: false }` [INFO] [stdout] 41d814e4c6cd9ed5ec6c083939b9dc3162901adfc76bd90922e62e53ed033f3e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] cc8631f63dc5168d1936d26c093183721770331b24484c3b5699aef30ec0ade8 [INFO] running `Command { std: "docker" "start" "-a" "cc8631f63dc5168d1936d26c093183721770331b24484c3b5699aef30ec0ade8", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.18s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/skip_linked_list-679aab9e6f2bf671) [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test list::test::into_iter ... ok [INFO] [stdout] test list::test::basics ... ok [INFO] [stdout] test list::test::pops ... ok [INFO] [stdout] test list::test::iter ... ok [INFO] [stdout] test list::test::iter_mut ... ok [INFO] [stdout] test list::test::small_random ... ok [INFO] [stdout] test list::test::panic_pop_front - should panic ... ok [INFO] [stdout] test list::test::panic_insert - should panic ... ok [INFO] [stdout] test list::test::panic_pop_back - should panic ... ok [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/skip_linked_list-9e6c0943376e64ba) [INFO] [stdout] test list::test::drop ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.09s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test list::test::into_iter ... ok [INFO] [stdout] test list::test::iter_mut ... ok [INFO] [stdout] test list::test::basics ... ok [INFO] [stdout] test list::test::iter ... ok [INFO] [stdout] test list::test::pops ... ok [INFO] [stdout] test list::test::panic_pop_back - should panic ... ok [INFO] [stdout] test list::test::panic_insert - should panic ... ok [INFO] [stdout] test list::test::panic_pop_front - should panic ... ok [INFO] [stdout] test list::test::small_random ... ok [INFO] [stdout] test list::test::drop ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.05s [INFO] [stdout] [INFO] [stderr] Doc-tests skip-linked-list [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/list.rs - list::SkipLinkedList::insert (line 56) ... ok [INFO] [stdout] test src/list.rs - list::SkipLinkedList (line 14) ... ok [INFO] [stdout] test src/list.rs - list::SkipLinkedList::remove (line 110) ... ok [INFO] [stdout] test src/list.rs - list::SkipLinkedList::get (line 93) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.02s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "cc8631f63dc5168d1936d26c093183721770331b24484c3b5699aef30ec0ade8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc8631f63dc5168d1936d26c093183721770331b24484c3b5699aef30ec0ade8", kill_on_drop: false }` [INFO] [stdout] cc8631f63dc5168d1936d26c093183721770331b24484c3b5699aef30ec0ade8