[INFO] fetching crate melib 0.6.2...
[INFO] checking melib-0.6.2 against master#d902752866cbbdb331e3cf28ff6bba86ab0f6c62 for pr-77271
[INFO] extracting crate melib 0.6.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate melib 0.6.2 on toolchain d902752866cbbdb331e3cf28ff6bba86ab0f6c62
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate melib 0.6.2
[INFO] finished tweaking crates.io crate melib 0.6.2
[INFO] tweaked toml for crates.io crate melib 0.6.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b27f4be4fe91d608406da49d3dab9f421a6c37f09aff27a03d19a7922a93ca42
[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" "b27f4be4fe91d608406da49d3dab9f421a6c37f09aff27a03d19a7922a93ca42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b27f4be4fe91d608406da49d3dab9f421a6c37f09aff27a03d19a7922a93ca42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b27f4be4fe91d608406da49d3dab9f421a6c37f09aff27a03d19a7922a93ca42", kill_on_drop: false }`
[INFO] [stdout] b27f4be4fe91d608406da49d3dab9f421a6c37f09aff27a03d19a7922a93ca42
[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=forbid" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5b5225bac6302e1cbe550a57aae9f82d83120292c450ac54cf9ceaa698e4e8f
[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" "a5b5225bac6302e1cbe550a57aae9f82d83120292c450ac54cf9ceaa698e4e8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling melib v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking data-encoding v2.3.0
[INFO] [stderr]     Checking xdg-utils v0.3.1
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking async-semaphore v1.2.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking async-barrier v1.1.0
[INFO] [stderr]     Checking async-rwlock v1.3.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.20.0
[INFO] [stderr]     Checking async-lock v2.2.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking futures-lite v1.8.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking async-fs v1.3.0
[INFO] [stderr]     Checking nb-connect v1.0.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking async-io v1.1.5
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-process v1.0.0
[INFO] [stderr]     Checking async-net v1.4.6
[INFO] [stderr]     Checking smol v1.2.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling pin-project-internal v0.4.24
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]     Checking async-stream v0.2.1
[INFO] [stderr]     Checking pin-project v0.4.24
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking rusqlite v0.24.0
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]    --> src/backends/imap/protocol_parser.rs:863:9
[INFO] [stdout]     |
[INFO] [stdout] 863 |     use std::convert::TryInto;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]     --> src/backends/imap/protocol_parser.rs:1055:9
[INFO] [stdout]      |
[INFO] [stdout] 1055 |     use std::convert::TryInto;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `generic::*`
[INFO] [stdout]     --> src/email/parser.rs:2474:43
[INFO] [stdout]      |
[INFO] [stdout] 2474 |     use super::{address::*, encodings::*, generic::*, *};
[INFO] [stdout]      |                                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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: unused variable: `h`
[INFO] [stdout]     --> src/email/parser.rs:1203:14
[INFO] [stdout]      |
[INFO] [stdout] 1203 |         for (h, v) in headers {
[INFO] [stdout]      |              ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `action_list`
[INFO] [stdout]     --> src/email/parser.rs:1204:24
[INFO] [stdout]      |
[INFO] [stdout] 1204 |             let (rest, action_list) = rfc_2369_list_headers_action_list(v).unwrap();
[INFO] [stdout]      |                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_action_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 01s
[INFO] running `Command { std: "docker" "inspect" "a5b5225bac6302e1cbe550a57aae9f82d83120292c450ac54cf9ceaa698e4e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b5225bac6302e1cbe550a57aae9f82d83120292c450ac54cf9ceaa698e4e8f", kill_on_drop: false }`
[INFO] [stdout] a5b5225bac6302e1cbe550a57aae9f82d83120292c450ac54cf9ceaa698e4e8f