[INFO] cloning repository https://github.com/CoderEx24/logician
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CoderEx24/logician" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCoderEx24%2Flogician", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCoderEx24%2Flogician'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f03924b7c3f56ff220309407f9fcd14af351181
[INFO] building CoderEx24/logician against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCoderEx24%2Flogician" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CoderEx24/logician on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CoderEx24/logician
[INFO] finished tweaking git repo https://github.com/CoderEx24/logician
[INFO] tweaked toml for git repo https://github.com/CoderEx24/logician written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CoderEx24/logician already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75cb433d8353efb2d0cda41b44d63a452b04a0f701c536de16a4853876235fe4
[INFO] running `Command { std: "docker" "start" "-a" "75cb433d8353efb2d0cda41b44d63a452b04a0f701c536de16a4853876235fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75cb433d8353efb2d0cda41b44d63a452b04a0f701c536de16a4853876235fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75cb433d8353efb2d0cda41b44d63a452b04a0f701c536de16a4853876235fe4", kill_on_drop: false }`
[INFO] [stdout] 75cb433d8353efb2d0cda41b44d63a452b04a0f701c536de16a4853876235fe4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05285dedb46b1d97d796cca6e6f37ea133f0c2b52cf96f004ce7d3de09dc2456
[INFO] running `Command { std: "docker" "start" "-a" "05285dedb46b1d97d796cca6e6f37ea133f0c2b52cf96f004ce7d3de09dc2456", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling regex v1.8.1
[INFO] [stderr]    Compiling logician v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::proposition::Proposition`
[INFO] [stdout]  --> src/propositional_logic/argument.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::proposition::Proposition;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proposition::*`
[INFO] [stdout]  --> src/propositional_logic/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use proposition::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compound_proposition::*`
[INFO] [stdout]  --> src/propositional_logic/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use compound_proposition::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `XOR` is never constructed
[INFO] [stdout]  --> src/propositional_logic/compound_proposition.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Operation {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     XOR,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Operation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `negated` is never used
[INFO] [stdout]   --> src/propositional_logic/proposition.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Proposition {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn negated(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `propositional_variables` is never used
[INFO] [stdout]    --> src/propositional_logic/argument.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 36  | impl Argument {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 174 |     pub fn propositional_variables(&self) -> &HashMap<String, String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         io::stdin().read_line(&mut line);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let _ = io::stdin().read_line(&mut line);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "05285dedb46b1d97d796cca6e6f37ea133f0c2b52cf96f004ce7d3de09dc2456", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05285dedb46b1d97d796cca6e6f37ea133f0c2b52cf96f004ce7d3de09dc2456", kill_on_drop: false }`
[INFO] [stdout] 05285dedb46b1d97d796cca6e6f37ea133f0c2b52cf96f004ce7d3de09dc2456
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c433f0a228f1f3f58be34c838cc85bf50c8257bf2824be53d2afd9011e0f7bac
[INFO] running `Command { std: "docker" "start" "-a" "c433f0a228f1f3f58be34c838cc85bf50c8257bf2824be53d2afd9011e0f7bac", kill_on_drop: false }`
[INFO] [stderr]    Compiling logician v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::proposition::Proposition`
[INFO] [stdout]  --> src/propositional_logic/argument.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::proposition::Proposition;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proposition::*`
[INFO] [stdout]  --> src/propositional_logic/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use proposition::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compound_proposition::*`
[INFO] [stdout]  --> src/propositional_logic/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use compound_proposition::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `XOR` is never constructed
[INFO] [stdout]  --> src/propositional_logic/compound_proposition.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Operation {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     XOR,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Operation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `negated` is never used
[INFO] [stdout]   --> src/propositional_logic/proposition.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Proposition {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn negated(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `propositional_variables` is never used
[INFO] [stdout]    --> src/propositional_logic/argument.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 36  | impl Argument {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 174 |     pub fn propositional_variables(&self) -> &HashMap<String, String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         io::stdin().read_line(&mut line);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let _ = io::stdin().read_line(&mut line);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "c433f0a228f1f3f58be34c838cc85bf50c8257bf2824be53d2afd9011e0f7bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c433f0a228f1f3f58be34c838cc85bf50c8257bf2824be53d2afd9011e0f7bac", kill_on_drop: false }`
[INFO] [stdout] c433f0a228f1f3f58be34c838cc85bf50c8257bf2824be53d2afd9011e0f7bac