[INFO] fetching crate pnav 0.1.0...
[INFO] checking pnav-0.1.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate pnav 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pnav 0.1.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pnav 0.1.0
[INFO] finished tweaking crates.io crate pnav 0.1.0
[INFO] tweaked toml for crates.io crate pnav 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pnav 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bd433a667d94a2f8e54d99d1d2dc7f1081951ab58b648111e85030b3ff37366
[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" "6bd433a667d94a2f8e54d99d1d2dc7f1081951ab58b648111e85030b3ff37366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bd433a667d94a2f8e54d99d1d2dc7f1081951ab58b648111e85030b3ff37366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd433a667d94a2f8e54d99d1d2dc7f1081951ab58b648111e85030b3ff37366", kill_on_drop: false }`
[INFO] [stdout] 6bd433a667d94a2f8e54d99d1d2dc7f1081951ab58b648111e85030b3ff37366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e41c6196b4393d54259ac4c104bb35aa11a54e02dbda675eb7d3843c21226f1
[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" "9e41c6196b4393d54259ac4c104bb35aa11a54e02dbda675eb7d3843c21226f1", kill_on_drop: false }`
[INFO] [stderr]     Checking pnav v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn run(args: Vec<String>) {
[INFO] [stdout]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Settings`
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn write_pnavrc(Settings: Settings) {}
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_pnavrc`
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn write_pnavrc(Settings: Settings) {}
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Settings` should have a snake case name
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn write_pnavrc(Settings: Settings) {}
[INFO] [stdout]    |                         ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `settings`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Settings` should have a snake case name
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut Settings = Settings::new("002001");
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn run(args: Vec<String>) {
[INFO] [stdout]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `Settings`
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn write_pnavrc(Settings: Settings) {}
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_Settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_pnavrc`
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn write_pnavrc(Settings: Settings) {}
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Settings` should have a snake case name
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn write_pnavrc(Settings: Settings) {}
[INFO] [stdout]    |                         ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `settings`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Settings` should have a snake case name
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut Settings = Settings::new("002001");
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Settings.read_pnavrc();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/manipulate_pnavrc.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Settings.read_pnavrc();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "9e41c6196b4393d54259ac4c104bb35aa11a54e02dbda675eb7d3843c21226f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e41c6196b4393d54259ac4c104bb35aa11a54e02dbda675eb7d3843c21226f1", kill_on_drop: false }`
[INFO] [stdout] 9e41c6196b4393d54259ac4c104bb35aa11a54e02dbda675eb7d3843c21226f1