[INFO] cloning repository https://github.com/garciaguimeras/rusty_fortress [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/garciaguimeras/rusty_fortress" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarciaguimeras%2Frusty_fortress", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarciaguimeras%2Frusty_fortress'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c7cc6003fc4b26ae238649d68142f18b73697260 [INFO] checking garciaguimeras/rusty_fortress against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarciaguimeras%2Frusty_fortress" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/garciaguimeras/rusty_fortress on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/garciaguimeras/rusty_fortress [INFO] finished tweaking git repo https://github.com/garciaguimeras/rusty_fortress [INFO] tweaked toml for git repo https://github.com/garciaguimeras/rusty_fortress written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/garciaguimeras/rusty_fortress already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 71130bf98df5a9fc1b3c4070788a6f3ebf2a51ac1b82d66122892c420d6f272f [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" "71130bf98df5a9fc1b3c4070788a6f3ebf2a51ac1b82d66122892c420d6f272f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "71130bf98df5a9fc1b3c4070788a6f3ebf2a51ac1b82d66122892c420d6f272f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71130bf98df5a9fc1b3c4070788a6f3ebf2a51ac1b82d66122892c420d6f272f", kill_on_drop: false }` [INFO] [stdout] 71130bf98df5a9fc1b3c4070788a6f3ebf2a51ac1b82d66122892c420d6f272f [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9cbd55c9e30a49334b916778f9591d99f59f41977df395bca4580bff1890ee3c [INFO] running `Command { std: "docker" "start" "-a" "9cbd55c9e30a49334b916778f9591d99f59f41977df395bca4580bff1890ee3c", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Checking toml v0.5.5 [INFO] [stderr] Checking rusty_fortress_lib v0.1.0 (/opt/rustwide/workdir/rusty_fortress_lib) [INFO] [stdout] warning: function is never used: `help_message` [INFO] [stdout] --> rusty_fortress_lib/src/legacy/env.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn help_message() -> String { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `error_message` [INFO] [stdout] --> rusty_fortress_lib/src/legacy/env.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn error_message() -> String { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `quit_message` [INFO] [stdout] --> rusty_fortress_lib/src/legacy/env.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn quit_message() -> String { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Environment` [INFO] [stdout] --> rusty_fortress_lib/src/legacy/env.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub struct Environment { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> rusty_fortress_lib/src/legacy/env.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn new() -> Environment { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `one_obj_fn` [INFO] [stdout] --> rusty_fortress_lib/src/legacy/env.rs:34:8 [INFO] [stdout] | [INFO] [stdout] 34 | fn one_obj_fn
(&mut self, objects: &Vec (&mut self, objects: &Vec (&mut self, objects: &Vec (&mut self, objects: &Vec