[INFO] fetching crate elements-frequency 0.1.5...
[INFO] testing elements-frequency-0.1.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate elements-frequency 0.1.5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate elements-frequency 0.1.5 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elements-frequency 0.1.5
[INFO] finished tweaking crates.io crate elements-frequency 0.1.5
[INFO] tweaked toml for crates.io crate elements-frequency 0.1.5 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 8b30fecc9bb5da7f578a39496c86882cf15fd7f49a80635b259640ef6bf8b467
[INFO] running `Command { std: "docker" "start" "-a" "8b30fecc9bb5da7f578a39496c86882cf15fd7f49a80635b259640ef6bf8b467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b30fecc9bb5da7f578a39496c86882cf15fd7f49a80635b259640ef6bf8b467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b30fecc9bb5da7f578a39496c86882cf15fd7f49a80635b259640ef6bf8b467", kill_on_drop: false }`
[INFO] [stdout] 8b30fecc9bb5da7f578a39496c86882cf15fd7f49a80635b259640ef6bf8b467
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76d4ec86c466ee2f8c6058d4434aa9d77cbd464907d53a5624126854005df70e
[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" "76d4ec86c466ee2f8c6058d4434aa9d77cbd464907d53a5624126854005df70e", kill_on_drop: false }`
[INFO] [stderr]    Compiling elements-frequency v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "76d4ec86c466ee2f8c6058d4434aa9d77cbd464907d53a5624126854005df70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d4ec86c466ee2f8c6058d4434aa9d77cbd464907d53a5624126854005df70e", kill_on_drop: false }`
[INFO] [stdout] 76d4ec86c466ee2f8c6058d4434aa9d77cbd464907d53a5624126854005df70e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2375a085fa9059ac8135d64e6a912a9b57820244b2d55a483f82b0a4d52e6ac8
[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" "2375a085fa9059ac8135d64e6a912a9b57820244b2d55a483f82b0a4d52e6ac8", kill_on_drop: false }`
[INFO] [stderr]    Compiling elements-frequency v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "2375a085fa9059ac8135d64e6a912a9b57820244b2d55a483f82b0a4d52e6ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2375a085fa9059ac8135d64e6a912a9b57820244b2d55a483f82b0a4d52e6ac8", kill_on_drop: false }`
[INFO] [stdout] 2375a085fa9059ac8135d64e6a912a9b57820244b2d55a483f82b0a4d52e6ac8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 6e44bcb249053653aa67bb1d51d849458daa9a2f0b030f13840cd0bd1aec63f8
[INFO] running `Command { std: "docker" "start" "-a" "6e44bcb249053653aa67bb1d51d849458daa9a2f0b030f13840cd0bd1aec63f8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/elements_frequency-cf78a048d9370f4d)
[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] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-57cb027a0821ebf9)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::char_1 ... ok
[INFO] [stdout] test tests::negative_int_1 ... ok
[INFO] [stdout] test tests::random_int_1 ... ok
[INFO] [stdout] test tests::slice_2 ... ok
[INFO] [stdout] test tests::positive_int_1 ... ok
[INFO] [stdout] test tests::string_1 ... ok
[INFO] [stdout] test tests::slice_1 ... ok
[INFO] [stdout] test tests::negative_int_2 ... ok
[INFO] [stdout] test tests::random_int_2 ... ok
[INFO] [stdout] test tests::positive_int_2 ... ok
[INFO] [stderr]    Doc-tests elements-frequency
[INFO] [stdout] test tests::string_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 11) ... FAILED
[INFO] [stdout] test src/interface.rs - interface::Elements::result (line 80) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 11) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:19:34
[INFO] [stdout]    |
[INFO] [stdout] 11 | let mut elements = Elements::new(&list);
[INFO] [stdout]    |                                  ^^^^^ expected struct `Vec`, found array `[&str; 5]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&Vec<_>`
[INFO] [stdout]               found reference `&[&str; 5]`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 11)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "6e44bcb249053653aa67bb1d51d849458daa9a2f0b030f13840cd0bd1aec63f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e44bcb249053653aa67bb1d51d849458daa9a2f0b030f13840cd0bd1aec63f8", kill_on_drop: false }`
[INFO] [stdout] 6e44bcb249053653aa67bb1d51d849458daa9a2f0b030f13840cd0bd1aec63f8