[INFO] cloning repository https://github.com/iddan/minerva
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iddan/minerva" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiddan%2Fminerva", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiddan%2Fminerva'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b8fa60ae197a306ddc8099df8050f20c633dc6f
[INFO] checking iddan/minerva against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiddan%2Fminerva" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iddan/minerva on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iddan/minerva
[INFO] finished tweaking git repo https://github.com/iddan/minerva
[INFO] tweaked toml for git repo https://github.com/iddan/minerva written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/iddan/minerva already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 047fb7dbe15cc060c27e3fcaaf740fed9b032216630b9b5a03ff44ff5e7f742c
[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" "047fb7dbe15cc060c27e3fcaaf740fed9b032216630b9b5a03ff44ff5e7f742c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "047fb7dbe15cc060c27e3fcaaf740fed9b032216630b9b5a03ff44ff5e7f742c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "047fb7dbe15cc060c27e3fcaaf740fed9b032216630b9b5a03ff44ff5e7f742c", kill_on_drop: false }`
[INFO] [stdout] 047fb7dbe15cc060c27e3fcaaf740fed9b032216630b9b5a03ff44ff5e7f742c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4c2930ae5eb7f4a23ed74c58bc1c810c054ce9e5ba642f85c6d3cc1b3bcca3b
[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" "e4c2930ae5eb7f4a23ed74c58bc1c810c054ce9e5ba642f85c6d3cc1b3bcca3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.7
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[INFO] [stdout] warning: unused import: `crate::nquads_deserialize`
[INFO] [stdout]   --> src/server_http.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::nquads_deserialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_http.rs:34:92
[INFO] [stdout]    |
[INFO] [stdout] 34 | ...k: Arc<Mutex<Dataset>>) -> Box<Future<Item=Response<Body>, Error=hyper::Error> + Send> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Response<Body>, Error=hyper::Error> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_http.rs:48:89
[INFO] [stdout]    |
[INFO] [stdout] 48 | ...k: Arc<Mutex<Dataset>>) -> Box<Future<Item=Response<Body>, Error=hyper::Error> + Send> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Response<Body>, Error=hyper::Error> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_http.rs:71:41
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn quad_service_unknown_method() -> Box<Future<Item=Response<Body>, Error=hyper::Error> + Send> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Response<Body>, Error=hyper::Error> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_http.rs:79:39
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn quad_service_unknown_path() -> Box<Future<Item=Response<Body>, Error=hyper::Error> + Send> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Response<Body>, Error=hyper::Error> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::quad::Quad`
[INFO] [stdout]   --> src/nquads_serialize.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     use crate::quad::Quad;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::nquads_deserialize`
[INFO] [stdout]   --> src/server_http.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::nquads_deserialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_http.rs:34:92
[INFO] [stdout]    |
[INFO] [stdout] 34 | ...k: Arc<Mutex<Dataset>>) -> Box<Future<Item=Response<Body>, Error=hyper::Error> + Send> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Response<Body>, Error=hyper::Error> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_http.rs:48:89
[INFO] [stdout]    |
[INFO] [stdout] 48 | ...k: Arc<Mutex<Dataset>>) -> Box<Future<Item=Response<Body>, Error=hyper::Error> + Send> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Response<Body>, Error=hyper::Error> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_http.rs:71:41
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn quad_service_unknown_method() -> Box<Future<Item=Response<Body>, Error=hyper::Error> + Send> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Response<Body>, Error=hyper::Error> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_http.rs:79:39
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn quad_service_unknown_path() -> Box<Future<Item=Response<Body>, Error=hyper::Error> + Send> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=Response<Body>, Error=hyper::Error> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::nquads_serialize::serialize`
[INFO] [stdout]   --> src/nquads_serialize.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     use crate::nquads_serialize::serialize;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::quad::Quad`
[INFO] [stdout]   --> src/nquads_serialize.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     use crate::quad::Quad;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::test_set`
[INFO] [stdout]   --> src/nquads_serialize.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     use crate::test_set;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::Future`
[INFO] [stdout]   --> src/nquads_serialize.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     use futures::future::Future;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream::Stream`
[INFO] [stdout]   --> src/nquads_serialize.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     use futures::stream::Stream;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]   --> src/nquads_serialize.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use std::collections::HashSet;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Person` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let Person = example.iri("Person");
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `person`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_quads`
[INFO] [stdout]  --> src/test_set.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn get_quads() -> HashSet<Quad> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_nquads_string`
[INFO] [stdout]    --> src/test_set.rs:187:8
[INFO] [stdout]     |
[INFO] [stdout] 187 | pub fn get_nquads_string() -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.57s
[INFO] running `Command { std: "docker" "inspect" "e4c2930ae5eb7f4a23ed74c58bc1c810c054ce9e5ba642f85c6d3cc1b3bcca3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4c2930ae5eb7f4a23ed74c58bc1c810c054ce9e5ba642f85c6d3cc1b3bcca3b", kill_on_drop: false }`
[INFO] [stdout] e4c2930ae5eb7f4a23ed74c58bc1c810c054ce9e5ba642f85c6d3cc1b3bcca3b