[INFO] cloning repository https://github.com/kota-yata/thumbnail-getter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kota-yata/thumbnail-getter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkota-yata%2Fthumbnail-getter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkota-yata%2Fthumbnail-getter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bfd1600b3b8ee328c3d360d6235ba15e5c67191
[INFO] checking kota-yata/thumbnail-getter against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkota-yata%2Fthumbnail-getter" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kota-yata/thumbnail-getter
[INFO] finished tweaking git repo https://github.com/kota-yata/thumbnail-getter
[INFO] tweaked toml for git repo https://github.com/kota-yata/thumbnail-getter written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kota-yata/thumbnail-getter on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kota-yata/thumbnail-getter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba90ce145d2440583ca63875dc5ffb4ef5f686ee9730f86d3c3780e4b2d3e6bc
[INFO] running `Command { std: "docker" "start" "-a" "ba90ce145d2440583ca63875dc5ffb4ef5f686ee9730f86d3c3780e4b2d3e6bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba90ce145d2440583ca63875dc5ffb4ef5f686ee9730f86d3c3780e4b2d3e6bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba90ce145d2440583ca63875dc5ffb4ef5f686ee9730f86d3c3780e4b2d3e6bc", kill_on_drop: false }`
[INFO] [stdout] ba90ce145d2440583ca63875dc5ffb4ef5f686ee9730f86d3c3780e4b2d3e6bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce6e64fa6f08e785c253495f6f5407347f51cb6f9a37cd754e0a68a3eca10c93
[INFO] running `Command { std: "docker" "start" "-a" "ce6e64fa6f08e785c253495f6f5407347f51cb6f9a37cd754e0a68a3eca10c93", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling tokio v1.20.3
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking ipnet v2.4.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking h2 v0.3.12
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]     Checking serde_json v1.0.79
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.9
[INFO] [stderr]     Checking html_parser v0.6.2
[INFO] [stderr]     Checking meta-getter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]  --> src/lib.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |   pub fn new(size: usize) -> ThreadPool {
[INFO] [stdout]   |              ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/lib.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |   pub fn execute<F>(&self, f: F)
[INFO] [stdout]   |                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `meta_getter::ThreadPool`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use meta_getter::ThreadPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `meta_getter::ThreadPool`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use meta_getter::ThreadPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `meta-getter` (bin "meta-getter") due to 9 previous errors; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let empty_response = Vec::from([String::from_str("Parse failed").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let empty_response = Vec::from([String::from_str("Parse failed").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `meta-getter` (bin "meta-getter" test) due to 9 previous errors; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:31:37
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let empty_response = Vec::from([String::from_str("Path not found").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:38:37
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let empty_response = Vec::from([String::from_str("Query not found").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:44:37
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let empty_response = Vec::from([String::from_str("Invalid URL").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:50:37
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let empty_response = Vec::from([String::from_str("No meta tag found").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:63:20
[INFO] [stdout]    |
[INFO] [stdout] 63 |     return (false, String::from_str("").unwrap());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |     None => (false, String::from_str("").unwrap()),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |       let result = String::from_str(&kv[1]).unwrap();
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |       return Ok(String::from_str(header).unwrap());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:31:37
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let empty_response = Vec::from([String::from_str("Path not found").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:38:37
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let empty_response = Vec::from([String::from_str("Query not found").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:44:37
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let empty_response = Vec::from([String::from_str("Invalid URL").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:50:37
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let empty_response = Vec::from([String::from_str("No meta tag found").unwrap()]);
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:63:20
[INFO] [stdout]    |
[INFO] [stdout] 63 |     return (false, String::from_str("").unwrap());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |     None => (false, String::from_str("").unwrap()),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |       let result = String::from_str(&kv[1]).unwrap();
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |       return Ok(String::from_str(header).unwrap());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]  --> src/lib.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |   pub fn new(size: usize) -> ThreadPool {
[INFO] [stdout]   |              ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]  --> src/lib.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |   pub fn execute<F>(&self, f: F)
[INFO] [stdout]   |                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce6e64fa6f08e785c253495f6f5407347f51cb6f9a37cd754e0a68a3eca10c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6e64fa6f08e785c253495f6f5407347f51cb6f9a37cd754e0a68a3eca10c93", kill_on_drop: false }`
[INFO] [stdout] ce6e64fa6f08e785c253495f6f5407347f51cb6f9a37cd754e0a68a3eca10c93