[INFO] cloning repository https://github.com/actuday6418/gremlin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/actuday6418/gremlin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Factuday6418%2Fgremlin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Factuday6418%2Fgremlin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7a548427db0810f1a05e8fba74af70ade1ae90a
[INFO] checking actuday6418/gremlin against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Factuday6418%2Fgremlin" "/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/actuday6418/gremlin on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/actuday6418/gremlin
[INFO] finished tweaking git repo https://github.com/actuday6418/gremlin
[INFO] tweaked toml for git repo https://github.com/actuday6418/gremlin written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/actuday6418/gremlin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stfu8 v0.2.4
[INFO] [stderr]   Downloaded voca_rs v1.13.0
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42869489760a6d52e35adb48ebcb1eb7c189b0b2742130de79d6ddd30a02c763
[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" "42869489760a6d52e35adb48ebcb1eb7c189b0b2742130de79d6ddd30a02c763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42869489760a6d52e35adb48ebcb1eb7c189b0b2742130de79d6ddd30a02c763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42869489760a6d52e35adb48ebcb1eb7c189b0b2742130de79d6ddd30a02c763", kill_on_drop: false }`
[INFO] [stdout] 42869489760a6d52e35adb48ebcb1eb7c189b0b2742130de79d6ddd30a02c763
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9751ebe62288b4ca0fc5648d3eaeabcb4280d26a1eb7f8982449520af5e56535
[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" "9751ebe62288b4ca0fc5648d3eaeabcb4280d26a1eb7f8982449520af5e56535", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking httpdate v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking tui v0.14.0
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking stfu8 v0.2.4
[INFO] [stderr]     Checking voca_rs v1.13.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking hyper v0.14.7
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.3
[INFO] [stderr]     Checking gremlin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `voca_rs` is imported redundantly
[INFO] [stdout]    --> src/networking/mod.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         use voca_rs;
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `voca_rs` is imported redundantly
[INFO] [stdout]    --> src/networking/mod.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         use voca_rs;
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parsed_str`
[INFO] [stdout]   --> src/parser/mod.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut parsed_str = "";
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/parser/mod.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for index in 0..content.len() { 
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parsed_str`
[INFO] [stdout]   --> src/parser/mod.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut parsed_str = "";
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/parser/mod.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for index in 0..content.len() { 
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/mod.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut parsed_str = "";
[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/parser/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut mode: HtmlParsingMode = HtmlParsingMode::SkippingTag;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `s_digit_code`
[INFO] [stdout]  --> src/networking/status.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     s_digit_code: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `meta`
[INFO] [stdout]  --> src/networking/status.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     meta: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `HtmlParsingMode`
[INFO] [stdout]  --> src/parser/mod.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum HtmlParsingMode {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_html`
[INFO] [stdout]   --> src/parser/mod.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn parse_html(content: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/mod.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut parsed_str = "";
[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/parser/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut mode: HtmlParsingMode = HtmlParsingMode::SkippingTag;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `s_digit_code`
[INFO] [stdout]  --> src/networking/status.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     s_digit_code: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `meta`
[INFO] [stdout]  --> src/networking/status.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     meta: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `HtmlParsingMode`
[INFO] [stdout]  --> src/parser/mod.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum HtmlParsingMode {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_html`
[INFO] [stdout]   --> src/parser/mod.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn parse_html(content: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.92s
[INFO] running `Command { std: "docker" "inspect" "9751ebe62288b4ca0fc5648d3eaeabcb4280d26a1eb7f8982449520af5e56535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9751ebe62288b4ca0fc5648d3eaeabcb4280d26a1eb7f8982449520af5e56535", kill_on_drop: false }`
[INFO] [stdout] 9751ebe62288b4ca0fc5648d3eaeabcb4280d26a1eb7f8982449520af5e56535