[INFO] fetching crate melib 0.6.1...
[INFO] testing melib-0.6.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate melib 0.6.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate melib 0.6.1 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 melib 0.6.1
[INFO] finished tweaking crates.io crate melib 0.6.1
[INFO] tweaked toml for crates.io crate melib 0.6.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 599c1b40b8681288be4d66000215b66c2f7365d50cd5ef76e3fbcef7819a8d1c
[INFO] running `Command { std: "docker" "start" "-a" "599c1b40b8681288be4d66000215b66c2f7365d50cd5ef76e3fbcef7819a8d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "599c1b40b8681288be4d66000215b66c2f7365d50cd5ef76e3fbcef7819a8d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "599c1b40b8681288be4d66000215b66c2f7365d50cd5ef76e3fbcef7819a8d1c", kill_on_drop: false }`
[INFO] [stdout] 599c1b40b8681288be4d66000215b66c2f7365d50cd5ef76e3fbcef7819a8d1c
[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" "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] 917c113502851c49f23e662b46d0eaa9d018789d70203290ac060248811f75b5
[INFO] running `Command { std: "docker" "start" "-a" "917c113502851c49f23e662b46d0eaa9d018789d70203290ac060248811f75b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling melib v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling futures-lite v0.1.10
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.12
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling memmap v0.5.2
[INFO] [stderr]    Compiling flate2 v1.0.16
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling blocking v0.4.7
[INFO] [stderr]    Compiling rusqlite v0.20.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling async-stream v0.2.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling smol v0.1.18
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling smallvec v1.4.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "917c113502851c49f23e662b46d0eaa9d018789d70203290ac060248811f75b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "917c113502851c49f23e662b46d0eaa9d018789d70203290ac060248811f75b5", kill_on_drop: false }`
[INFO] [stdout] 917c113502851c49f23e662b46d0eaa9d018789d70203290ac060248811f75b5
[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" "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] c1902a96b92980adffb595f1afabad0e9a117bbf9146a5a8e97c5fdfc18be5e0
[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" "c1902a96b92980adffb595f1afabad0e9a117bbf9146a5a8e97c5fdfc18be5e0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling melib v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `words`
[INFO] [stdout]    --> src/email/compose/mime.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let words = "[Advcomparch] =?utf-8?b?zqPPhc68z4DOtc+BzrnPhs6/z4HOrCDPg861IGZs?=\n\t=?utf-8?b?dXNoIM67z4zOs8+JIG1pc3ByZWRpY3Rpb24gzrrO...
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_words`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 23.31s
[INFO] running `Command { std: "docker" "inspect" "c1902a96b92980adffb595f1afabad0e9a117bbf9146a5a8e97c5fdfc18be5e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1902a96b92980adffb595f1afabad0e9a117bbf9146a5a8e97c5fdfc18be5e0", kill_on_drop: false }`
[INFO] [stdout] c1902a96b92980adffb595f1afabad0e9a117bbf9146a5a8e97c5fdfc18be5e0
[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" "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] bdb3497cd5926da0478cb188fc2d70cd4c657d58c235675b297c1d5431b58fd4
[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" "bdb3497cd5926da0478cb188fc2d70cd4c657d58c235675b297c1d5431b58fd4", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `words`
[INFO] [stderr]    --> src/email/compose/mime.rs:182:9
[INFO] [stderr]     |
[INFO] [stderr] 182 |     let words = "[Advcomparch] =?utf-8?b?zqPPhc68z4DOtc+BzrnPhs6/z4HOrCDPg861IGZs?=\n\t=?utf-8?b?dXNoIM67z4zOs8+JIG1pc3ByZWRpY3Rpb24gzrrO...
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_words`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/melib-425b7cf22f050052
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test addressbook::vcard::test_load_cards ... ok
[INFO] [stdout] test backends::imap::mailbox::test_lazy_count_set ... ok
[INFO] [stdout] test email::compose::tests::test_attachments ... ok
[INFO] [stdout] test email::parser::tests::test_attachments ... ok
[INFO] [stdout] test email::address::test_strbuilder ... ok
[INFO] [stdout] test datetime::test_timestamp ... ok
[INFO] [stdout] test email::parser::tests::test_date ... ok
[INFO] [stdout] test datetime::test_rfcs ... ok
[INFO] [stdout] test shellexpand::test_shellexpandtrait ... ok
[INFO] [stdout] test backends::imap::protocol_parser::test_imap_search ... ok
[INFO] [stdout] test addressbook::vcard::test_card ... ok
[INFO] [stdout] test backends::imap::protocol_parser::test_imap_required_responses ... ok
[INFO] [stdout] test email::parser::tests::test_phrase ... ok
[INFO] [stdout] test email::compose::tests::test_new ... ok
[INFO] [stdout] test email::parser::tests::test_quoted_printable ... ok
[INFO] [stdout] test email::mailto::tests::test_mailto ... ok
[INFO] [stdout] test search::query_parser::test_query_parsing ... ok
[INFO] [stdout] test email::parser::tests::test_address_list ... ok
[INFO] [stdout] test backends::imap::protocol_parser::test_imap_response ... ok
[INFO] [stdout] test backends::imap::managesieve::test_managesieve_capabilities ... ok
[INFO] [stdout] test email::parser::tests::test_addresses ... ok
[INFO] [stdout] test text_processing::line_break::tests::test_line_breaks ... ok
[INFO] [stdout] test email::compose::mime::test_encode_header ... ok
[INFO] [stdout] test text_processing::test_globmatch ... ok
[INFO] [stdout] test text_processing::search::test_search ... ok
[INFO] [stderr]    Doc-tests melib
[INFO] [stdout] test text_processing::line_break::test_reflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/backends.rs - backends::BackendOp (line 456) ... ignored
[INFO] [stdout] test src/backends.rs - backends::BackendOp (line 463) ... ignored
[INFO] [stdout] test src/text_processing/line_break.rs - text_processing::line_break::LineBreakCandidateIter (line 120) ... ok
[INFO] [stdout] test src/search.rs - search::query_parser::query (line 224) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bdb3497cd5926da0478cb188fc2d70cd4c657d58c235675b297c1d5431b58fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb3497cd5926da0478cb188fc2d70cd4c657d58c235675b297c1d5431b58fd4", kill_on_drop: false }`
[INFO] [stdout] bdb3497cd5926da0478cb188fc2d70cd4c657d58c235675b297c1d5431b58fd4