[INFO] updating cached repository https://github.com/thibremy/oembellir
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c7b412a0c359a52b9f5f8c171702bac71a0571b3
[INFO] checking thibremy/oembellir against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthibremy%2Foembellir" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thibremy/oembellir on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/thibremy/oembellir
[INFO] finished tweaking git repo https://github.com/thibremy/oembellir
[INFO] tweaked toml for git repo https://github.com/thibremy/oembellir written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/thibremy/oembellir already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 356d2ce73cbcb53dc7bdc95d047c91e1a8d036d02d708627526d54c64bed3cba
[INFO] running `"docker" "start" "-a" "356d2ce73cbcb53dc7bdc95d047c91e1a8d036d02d708627526d54c64bed3cba"`
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking iron v0.6.0
[INFO] [stderr]     Checking oembellir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `self::middlewares::*`
[INFO] [stderr]  --> src/http/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use self::middlewares::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iron::status`
[INFO] [stderr]  --> src/http/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use iron::status;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Application`
[INFO] [stderr]  --> src/http/mod.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | use super::{ Application };
[INFO] [stderr]   |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `domain`
[INFO] [stderr]   --> src/lib.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn attach_domain(&self, domain: impl Domain) -> &Self {
[INFO] [stderr]    |                                 ^^^^^^ help: consider prefixing with an underscore: `_domain`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/http/middlewares/logger.rs:23:22
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn before(&self, req: &mut Request) -> IronResult<()> {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/http/middlewares/logger.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn after(&self, req: &mut Request, res: Response) -> IronResult<Response> {
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/http/middlewares/cors.rs:23:22
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn before(&self, req: &mut Request) -> IronResult<()> {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/http/middlewares/cors.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn after(&self, req: &mut Request, res: Response) -> IronResult<Response> {
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::middlewares::*`
[INFO] [stderr]  --> src/http/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use self::middlewares::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iron::status`
[INFO] [stderr]  --> src/http/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use iron::status;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Application`
[INFO] [stderr]  --> src/http/mod.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 | use super::{ Application };
[INFO] [stderr]   |              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/http/middlewares/logger.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new() -> (OembedLogger, OembedLogger) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/http/middlewares/cors.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new() -> (OembedCors, OembedCors) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Photo`
[INFO] [stderr]  --> src/oembed/types.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Photo {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Video`
[INFO] [stderr]  --> src/oembed/types.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Video {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Link`
[INFO] [stderr]   --> src/oembed/types.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct Link {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RichLink`
[INFO] [stderr]   --> src/oembed/types.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | struct RichLink {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Oper`
[INFO] [stderr]  --> src/oembed/mod.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Oper {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Oembed`
[INFO] [stderr]   --> src/oembed/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Oembed {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Domains`
[INFO] [stderr]   --> src/domains/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Domains { 
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `match_from`
[INFO] [stderr]   --> src/domains/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn match_from() {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `domain`
[INFO] [stderr]   --> src/lib.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn attach_domain(&self, domain: impl Domain) -> &Self {
[INFO] [stderr]    |                                 ^^^^^^ help: consider prefixing with an underscore: `_domain`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/http/middlewares/logger.rs:23:22
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn before(&self, req: &mut Request) -> IronResult<()> {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/http/middlewares/logger.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn after(&self, req: &mut Request, res: Response) -> IronResult<Response> {
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/http/middlewares/cors.rs:23:22
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn before(&self, req: &mut Request) -> IronResult<()> {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/http/middlewares/cors.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn after(&self, req: &mut Request, res: Response) -> IronResult<Response> {
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/http/middlewares/logger.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new() -> (OembedLogger, OembedLogger) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/http/middlewares/cors.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new() -> (OembedCors, OembedCors) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Photo`
[INFO] [stderr]  --> src/oembed/types.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Photo {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Video`
[INFO] [stderr]  --> src/oembed/types.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Video {
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Link`
[INFO] [stderr]   --> src/oembed/types.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct Link {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RichLink`
[INFO] [stderr]   --> src/oembed/types.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | struct RichLink {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Oper`
[INFO] [stderr]  --> src/oembed/mod.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Oper {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Oembed`
[INFO] [stderr]   --> src/oembed/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Oembed {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Domains`
[INFO] [stderr]   --> src/domains/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Domains { 
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `match_from`
[INFO] [stderr]   --> src/domains/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn match_from() {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut chain = Chain::new(IronServer::new());
[INFO] [stderr]   |         ----^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Iron::new(chain).http("localhost:3000");
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut chain = Chain::new(IronServer::new());
[INFO] [stderr]   |         ----^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Iron::new(chain).http("localhost:3000");
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.21s
[INFO] running `"docker" "inspect" "356d2ce73cbcb53dc7bdc95d047c91e1a8d036d02d708627526d54c64bed3cba"`
[INFO] running `"docker" "rm" "-f" "356d2ce73cbcb53dc7bdc95d047c91e1a8d036d02d708627526d54c64bed3cba"`
[INFO] [stdout] 356d2ce73cbcb53dc7bdc95d047c91e1a8d036d02d708627526d54c64bed3cba