[INFO] fetching crate watermark 1.1.0...
[INFO] testing watermark-1.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate watermark 1.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate watermark 1.1.0 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 watermark 1.1.0
[INFO] finished tweaking crates.io crate watermark 1.1.0
[INFO] tweaked toml for crates.io crate watermark 1.1.0 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[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" "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] 7a3bdfa913f6a6e904ca5373068d6c22260d4b3345ba5a5f6edbed0ec831f129
[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" "7a3bdfa913f6a6e904ca5373068d6c22260d4b3345ba5a5f6edbed0ec831f129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a3bdfa913f6a6e904ca5373068d6c22260d4b3345ba5a5f6edbed0ec831f129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a3bdfa913f6a6e904ca5373068d6c22260d4b3345ba5a5f6edbed0ec831f129", kill_on_drop: false }`
[INFO] [stdout] 7a3bdfa913f6a6e904ca5373068d6c22260d4b3345ba5a5f6edbed0ec831f129
[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" "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] f7f6482118e41db623a77167100cb4e46869609fb6f09bd3fd26364e8cb6cdbc
[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" "f7f6482118e41db623a77167100cb4e46869609fb6f09bd3fd26364e8cb6cdbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling watermark v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "f7f6482118e41db623a77167100cb4e46869609fb6f09bd3fd26364e8cb6cdbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7f6482118e41db623a77167100cb4e46869609fb6f09bd3fd26364e8cb6cdbc", kill_on_drop: false }`
[INFO] [stdout] f7f6482118e41db623a77167100cb4e46869609fb6f09bd3fd26364e8cb6cdbc
[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" "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] 81d4d5658273225d008edb591879b0468147e19b89832ddc3eea352f29075485
[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" "81d4d5658273225d008edb591879b0468147e19b89832ddc3eea352f29075485", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling watermark v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::panic`
[INFO] [stdout]    --> src/lib.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |     use std::panic;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.08s
[INFO] running `Command { std: "docker" "inspect" "81d4d5658273225d008edb591879b0468147e19b89832ddc3eea352f29075485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d4d5658273225d008edb591879b0468147e19b89832ddc3eea352f29075485", kill_on_drop: false }`
[INFO] [stdout] 81d4d5658273225d008edb591879b0468147e19b89832ddc3eea352f29075485
[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" "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] bf0832d8685a1299f03f92072bf5172943aedea1eb28e149ea6b0be480629ebd
[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" "bf0832d8685a1299f03f92072bf5172943aedea1eb28e149ea6b0be480629ebd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::panic`
[INFO] [stdout] running 6 tests
[INFO] [stderr]    --> src/lib.rs:222:9
[INFO] [stdout] test tests::basic_operation ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::can_create_as_default ... ok
[INFO] [stderr] 222 |     use std::panic;
[INFO] [stdout] test tests::can_check_size ... ok
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stdout] test tests::can_insert_many_with_good_watermarking ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::can_insert_slightly_out_of_order ... ok
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/watermark-2adba150aa75a22b
[INFO] [stdout] test tests::should_support_other_integer_types ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests watermark
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - WatermarkSet<T>::insert (line 94) ... ok
[INFO] [stdout] test src/lib.rs - WatermarkSet<T>::new (line 77) ... ok
[INFO] [stdout] test src/lib.rs - WatermarkSet<T>::contains (line 160) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - WatermarkSet<T>::size (line 136) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bf0832d8685a1299f03f92072bf5172943aedea1eb28e149ea6b0be480629ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf0832d8685a1299f03f92072bf5172943aedea1eb28e149ea6b0be480629ebd", kill_on_drop: false }`
[INFO] [stdout] bf0832d8685a1299f03f92072bf5172943aedea1eb28e149ea6b0be480629ebd