[INFO] cloning repository https://github.com/triskofwhaleisland/DiscreteMath
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/triskofwhaleisland/DiscreteMath" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriskofwhaleisland%2FDiscreteMath", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriskofwhaleisland%2FDiscreteMath'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6c0c35a6626928edeecf2ecd8483c23393b4ba2
[INFO] checking triskofwhaleisland/DiscreteMath against master#b44e14f762fd4062faeba97f8f2bc470298ec1ac for pr-135331
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriskofwhaleisland%2FDiscreteMath" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/triskofwhaleisland/DiscreteMath on toolchain b44e14f762fd4062faeba97f8f2bc470298ec1ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/triskofwhaleisland/DiscreteMath
[INFO] finished tweaking git repo https://github.com/triskofwhaleisland/DiscreteMath
[INFO] tweaked toml for git repo https://github.com/triskofwhaleisland/DiscreteMath written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/triskofwhaleisland/DiscreteMath 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" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43773f3355bd3257ea17379040a62c9a307772f5b8544dfaa13d560e663896d1
[INFO] running `Command { std: "docker" "start" "-a" "43773f3355bd3257ea17379040a62c9a307772f5b8544dfaa13d560e663896d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43773f3355bd3257ea17379040a62c9a307772f5b8544dfaa13d560e663896d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43773f3355bd3257ea17379040a62c9a307772f5b8544dfaa13d560e663896d1", kill_on_drop: false }`
[INFO] [stdout] 43773f3355bd3257ea17379040a62c9a307772f5b8544dfaa13d560e663896d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e00cf01bd51f5f89a4b0284b63bf934de18b2afca6219750819f64c0cf66809
[INFO] running `Command { std: "docker" "start" "-a" "1e00cf01bd51f5f89a4b0284b63bf934de18b2afca6219750819f64c0cf66809", kill_on_drop: false }`
[INFO] [stderr]     Checking DiscreteMath v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Xor` is never constructed
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Operand {
[INFO] [stdout]   |      ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Xor,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Operand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `xor`, `is_axiom`, and `is_contradiction` are never used
[INFO] [stdout]    --> src/main.rs:99:8
[INFO] [stdout]     |
[INFO] [stdout] 27  | impl Proposition {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99  |     fn xor(&self, other: &Proposition) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 |     fn is_axiom(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn is_contradiction(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Xor` is never constructed
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Operand {
[INFO] [stdout]   |      ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Xor,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Operand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `xor`, `is_axiom`, and `is_contradiction` are never used
[INFO] [stdout]    --> src/main.rs:99:8
[INFO] [stdout]     |
[INFO] [stdout] 27  | impl Proposition {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99  |     fn xor(&self, other: &Proposition) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 |     fn is_axiom(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn is_contradiction(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "1e00cf01bd51f5f89a4b0284b63bf934de18b2afca6219750819f64c0cf66809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e00cf01bd51f5f89a4b0284b63bf934de18b2afca6219750819f64c0cf66809", kill_on_drop: false }`
[INFO] [stdout] 1e00cf01bd51f5f89a4b0284b63bf934de18b2afca6219750819f64c0cf66809