[INFO] fetching crate convenient-skiplist 1.0.2...
[INFO] testing convenient-skiplist-1.0.2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate convenient-skiplist 1.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate convenient-skiplist 1.0.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate convenient-skiplist 1.0.2
[INFO] finished tweaking crates.io crate convenient-skiplist 1.0.2
[INFO] tweaked toml for crates.io crate convenient-skiplist 1.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate convenient-skiplist 1.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca2f914b4ef84267a6a6c2d3bc062203b8f66393903e27bc71cdbf362015728b
[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" "ca2f914b4ef84267a6a6c2d3bc062203b8f66393903e27bc71cdbf362015728b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca2f914b4ef84267a6a6c2d3bc062203b8f66393903e27bc71cdbf362015728b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca2f914b4ef84267a6a6c2d3bc062203b8f66393903e27bc71cdbf362015728b", kill_on_drop: false }`
[INFO] [stdout] ca2f914b4ef84267a6a6c2d3bc062203b8f66393903e27bc71cdbf362015728b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 176cb62bdd0b7df5828eeb25bdd906a774023621ce93dc09711daa9a7811d604
[INFO] running `Command { std: "docker" "start" "-a" "176cb62bdd0b7df5828eeb25bdd906a774023621ce93dc09711daa9a7811d604", kill_on_drop: false }`
[INFO] [stderr]    Compiling convenient-skiplist v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "176cb62bdd0b7df5828eeb25bdd906a774023621ce93dc09711daa9a7811d604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176cb62bdd0b7df5828eeb25bdd906a774023621ce93dc09711daa9a7811d604", kill_on_drop: false }`
[INFO] [stdout] 176cb62bdd0b7df5828eeb25bdd906a774023621ce93dc09711daa9a7811d604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf6b0a6c2474c251d0ad62bc7f13f9cafdd7c780bc0178467d33f029c6e7fbfe
[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" "cf6b0a6c2474c251d0ad62bc7f13f9cafdd7c780bc0178467d33f029c6e7fbfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling oorandom v11.1.2
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling checkers-macros v0.5.1
[INFO] [stderr]    Compiling checkers v0.5.6
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling convenient-skiplist v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 42.44s
[INFO] running `Command { std: "docker" "inspect" "cf6b0a6c2474c251d0ad62bc7f13f9cafdd7c780bc0178467d33f029c6e7fbfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf6b0a6c2474c251d0ad62bc7f13f9cafdd7c780bc0178467d33f029c6e7fbfe", kill_on_drop: false }`
[INFO] [stdout] cf6b0a6c2474c251d0ad62bc7f13f9cafdd7c780bc0178467d33f029c6e7fbfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12b6305c250f1ef6d189224aaa6671edaacfd864dcfac1140e6e8bbf5eb72f06
[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" "12b6305c250f1ef6d189224aaa6671edaacfd864dcfac1140e6e8bbf5eb72f06", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/convenient_skiplist-826d2162fa942bd5
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test iter::tests::test_inclusion_fn_range_with ... ok
[INFO] [stdout] test iter::tests::test_empty ... ok
[INFO] [stdout] test iter::tests::test_range_empty ... ok
[INFO] [stdout] test iter::tests::test_iterall ... ok
[INFO] [stdout] test iter::tests::test_range_outside ... ok
[INFO] [stdout] test iter::tests::test_range_with_empty ... ok
[INFO] [stdout] test tests::insert_no_panic ... ok
[INFO] [stdout] test iter::tests::test_range_with ... ok
[INFO] [stdout] test iter::tests::test_range_with_all ... ok
[INFO] [stdout] test tests::test_from ... ok
[INFO] [stdout] test iter::tests::test_range_pathological_no_panic ... ok
[INFO] [stdout] test iter::tests::test_range_with_none ... ok
[INFO] [stdout] test tests::test_clone ... ok
[INFO] [stdout] test tests::test_eq ... ok
[INFO] [stdout] test tests::test_at_index ... ok
[INFO] [stdout] test tests::test_peek ... ok
[INFO] [stdout] test tests::test_more_complex_type ... ok
[INFO] [stdout] test tests::test_index_of ... ok
[INFO] [stdout] test tests::test_pop_min ... ok
[INFO] [stdout] test tests::test_inclusive_range ... ok
[INFO] [stdout] test tests::test_len ... ok
[INFO] [stdout] test tests::test_vec_from ... ok
[INFO] [stdout] test tests::test_pop_max ... ok
[INFO] [stdout] test tests::test_remove ... ok
[INFO] [stdout] test iter::tests::test_range ... ok
[INFO] [stdout] test tests::test_bad_index ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/checkers_test-90b11f9ec600dd85
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests convenient-skiplist
[INFO] [stdout] test test_allocations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test src/lib.rs - SkipList<T>::range (line 944) ... ok
[INFO] [stdout] test src/lib.rs - SkipList (line 139) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::at_index (line 622) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::iter_all (line 923) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::insert (line 345) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::index_of (line 588) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::peek_first (line 672) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::pop_front (line 802) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::pop_max (line 719) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::pop_back (line 781) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::len (line 550) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::new (line 294) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::contains (line 464) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::pop_min (line 836) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::clear (line 1014) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::peek_last (line 689) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::range_with (line 980) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::remove_at (line 531) ... ok
[INFO] [stdout] test src/lib.rs - SkipList<T>::remove (line 495) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "12b6305c250f1ef6d189224aaa6671edaacfd864dcfac1140e6e8bbf5eb72f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12b6305c250f1ef6d189224aaa6671edaacfd864dcfac1140e6e8bbf5eb72f06", kill_on_drop: false }`
[INFO] [stdout] 12b6305c250f1ef6d189224aaa6671edaacfd864dcfac1140e6e8bbf5eb72f06