[INFO] cloning repository https://github.com/chess-seventh/RSS2Mutt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chess-seventh/RSS2Mutt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchess-seventh%2FRSS2Mutt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchess-seventh%2FRSS2Mutt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5da7de90575f1c4db769b7968cd0fd34ea7070c
[INFO] checking chess-seventh/RSS2Mutt against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchess-seventh%2FRSS2Mutt" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chess-seventh/RSS2Mutt on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chess-seventh/RSS2Mutt
[INFO] finished tweaking git repo https://github.com/chess-seventh/RSS2Mutt
[INFO] tweaked toml for git repo https://github.com/chess-seventh/RSS2Mutt written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/chess-seventh/RSS2Mutt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded native-tls v0.2.1
[INFO] [stderr]   Downloaded hyper v0.12.12
[INFO] [stderr]   Downloaded libflate v0.1.18
[INFO] [stderr]   Downloaded derive_builder_core v0.3.0
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[INFO] [stderr]   Downloaded string_cache_codegen v0.3.1
[INFO] [stderr]   Downloaded darling_core v0.6.3
[INFO] [stderr]   Downloaded html2runes v1.0.0
[INFO] [stderr]   Downloaded darling_macro v0.6.3
[INFO] [stderr]   Downloaded encoding_rs v0.8.10
[INFO] [stderr]   Downloaded html5ever-atoms v0.2.2
[INFO] [stderr]   Downloaded darling v0.6.3
[INFO] [stderr]   Downloaded h2 v0.1.13
[INFO] [stderr]   Downloaded rss v1.6.0
[INFO] [stderr]   Downloaded tempfile v3.0.4
[INFO] [stderr]   Downloaded reqwest v0.9.3
[INFO] [stderr]   Downloaded derive_builder v0.6.0
[INFO] [stderr]   Downloaded quick-xml v0.13.0
[INFO] [stderr]   Downloaded openssl v0.10.14
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1526ea77c75d5313d111e9b4f0fce3664ff5c4e8845d25fab9b34f7d8e30414d
[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" "1526ea77c75d5313d111e9b4f0fce3664ff5c4e8845d25fab9b34f7d8e30414d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1526ea77c75d5313d111e9b4f0fce3664ff5c4e8845d25fab9b34f7d8e30414d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1526ea77c75d5313d111e9b4f0fce3664ff5c4e8845d25fab9b34f7d8e30414d", kill_on_drop: false }`
[INFO] [stdout] 1526ea77c75d5313d111e9b4f0fce3664ff5c4e8845d25fab9b34f7d8e30414d
[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=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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92c5f6728419564513c4deaf1167332114fbfac232d6c6fb51b896a3d3b61821
[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" "92c5f6728419564513c4deaf1167332114fbfac232d6c6fb51b896a3d3b61821", kill_on_drop: false }`
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling openssl v0.10.14
[INFO] [stderr]    Compiling ident_case v1.0.0
[INFO] [stderr]    Compiling encoding_rs v0.8.10
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling derive_builder v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
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[INFO] [stderr]     Checking vec_map v0.6.0
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[INFO] [stderr]     Checking net2 v0.2.33
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[INFO] [stderr]     Checking term_size v0.2.3
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[INFO] [stderr]     Checking utf-8 v0.6.0
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[INFO] [stderr]     Checking want v0.0.6
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[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
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[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking tendril v0.2.4
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling string_cache_codegen v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
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[INFO] [stderr]     Checking tokio-reactor v0.1.6
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[INFO] [stderr]    Compiling html5ever-atoms v0.2.2
[INFO] [stderr]     Checking tokio-udp v0.1.2
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[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio v0.1.11
[INFO] [stderr]    Compiling html5ever v0.13.1
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[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling darling_core v0.6.3
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.3
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking quick-xml v0.13.0
[INFO] [stderr]    Compiling darling_macro v0.6.3
[INFO] [stderr]     Checking html2runes v1.0.0
[INFO] [stderr]    Compiling darling v0.6.3
[INFO] [stderr]    Compiling derive_builder_core v0.3.0
[INFO] [stderr]     Checking rss v1.6.0
[INFO] [stderr]     Checking rss_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:151:32
[INFO] [stdout]     |
[INFO] [stdout] 151 | ...                   why.description()),
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:151:32
[INFO] [stdout]     |
[INFO] [stdout] 151 | ...                   why.description()),
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let mut curr_line = line.unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let mut curr_line = line.unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 |     writeln!(file, "{}", hash.unwrap().to_owned().to_string());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 |     writeln!(file, "{}", hash.unwrap().to_owned().to_string());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 49s
[INFO] running `Command { std: "docker" "inspect" "92c5f6728419564513c4deaf1167332114fbfac232d6c6fb51b896a3d3b61821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92c5f6728419564513c4deaf1167332114fbfac232d6c6fb51b896a3d3b61821", kill_on_drop: false }`
[INFO] [stdout] 92c5f6728419564513c4deaf1167332114fbfac232d6c6fb51b896a3d3b61821