[INFO] fetching crate env-variables 0.1.1...
[INFO] checking env-variables-0.1.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate env-variables 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate env-variables 0.1.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate env-variables 0.1.1
[INFO] finished tweaking crates.io crate env-variables 0.1.1
[INFO] tweaked toml for crates.io crate env-variables 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e0ceb2ad6f5605978c94e418919b1ec190a30ed6a32b94142f5ecdb01c97c60
[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" "2e0ceb2ad6f5605978c94e418919b1ec190a30ed6a32b94142f5ecdb01c97c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e0ceb2ad6f5605978c94e418919b1ec190a30ed6a32b94142f5ecdb01c97c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0ceb2ad6f5605978c94e418919b1ec190a30ed6a32b94142f5ecdb01c97c60", kill_on_drop: false }`
[INFO] [stdout] 2e0ceb2ad6f5605978c94e418919b1ec190a30ed6a32b94142f5ecdb01c97c60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3de329b58dc7a5a4b237921af51cb6a69d1a3389d24234e4168f4dec82f64fc4
[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" "3de329b58dc7a5a4b237921af51cb6a69d1a3389d24234e4168f4dec82f64fc4", kill_on_drop: false }`
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking env-variables v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout] 167 +             Some("http://proxy.example.com:8080".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout] 178 +             Some("http://proxy.example.com:8080".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |             Some(("http://proxy.example.org:8081".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 183 -             Some(("http://proxy.example.org:8081".to_string()))
[INFO] [stdout] 183 +             Some("http://proxy.example.org:8081".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |             Some(("http://proxy.example.com:8080".to_string())),
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 195 -             Some(("http://proxy.example.com:8080".to_string())),
[INFO] [stdout] 195 +             Some("http://proxy.example.com:8080".to_string()),
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |             Some(("http://proxy.example.com:8081".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 201 -             Some(("http://proxy.example.com:8081".to_string()))
[INFO] [stdout] 201 +             Some("http://proxy.example.com:8081".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 213 -             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout] 213 +             Some("http://proxy.example.com:8080".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:218:9
[INFO] [stdout]     |
[INFO] [stdout] 218 |             Some(("http://proxy.example.org:8081".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 218 -             Some(("http://proxy.example.org:8081".to_string()))
[INFO] [stdout] 218 +             Some("http://proxy.example.org:8081".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:223:9
[INFO] [stdout]     |
[INFO] [stdout] 223 |             Some(("http://proxy.example.org:8082".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 223 -             Some(("http://proxy.example.org:8082".to_string()))
[INFO] [stdout] 223 +             Some("http://proxy.example.org:8082".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 236 |             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout] 236 +             Some("http://proxy.example.com:8080".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |             Some(("http://proxy.example.com:8081".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 241 -             Some(("http://proxy.example.com:8081".to_string()))
[INFO] [stdout] 241 +             Some("http://proxy.example.com:8081".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 253 -             Some(("http://proxy.example.com:8080".to_string()))
[INFO] [stdout] 253 +             Some("http://proxy.example.com:8080".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 258 |             Some(("http://proxy.example.org:8081".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 258 -             Some(("http://proxy.example.org:8081".to_string()))
[INFO] [stdout] 258 +             Some("http://proxy.example.org:8081".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |             Some(("http://proxy.example.org:8082".to_string()))
[INFO] [stdout]     |                  ^                                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 263 -             Some(("http://proxy.example.org:8082".to_string()))
[INFO] [stdout] 263 +             Some("http://proxy.example.org:8082".to_string())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:95:2
[INFO] [stdout]    |
[INFO] [stdout] 95 | /     lazy_static! {
[INFO] [stdout] 96 | |     static ref LOCK: Mutex<()> = Mutex::new(());
[INFO] [stdout] 97 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "3de329b58dc7a5a4b237921af51cb6a69d1a3389d24234e4168f4dec82f64fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de329b58dc7a5a4b237921af51cb6a69d1a3389d24234e4168f4dec82f64fc4", kill_on_drop: false }`
[INFO] [stdout] 3de329b58dc7a5a4b237921af51cb6a69d1a3389d24234e4168f4dec82f64fc4