[INFO] cloning repository https://github.com/willhansen/levels-of-relativity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willhansen/levels-of-relativity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillhansen%2Flevels-of-relativity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillhansen%2Flevels-of-relativity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 753f2fbb0c1307f5924299d5e95cacbdb90d8c34
[INFO] checking willhansen/levels-of-relativity against try#c8085cfed34c45021fc8f66d073f6394b3e35431 for pr-148939
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillhansen%2Flevels-of-relativity" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/willhansen/levels-of-relativity
[INFO] finished tweaking git repo https://github.com/willhansen/levels-of-relativity
[INFO] tweaked toml for git repo https://github.com/willhansen/levels-of-relativity written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/willhansen/levels-of-relativity on toolchain c8085cfed34c45021fc8f66d073f6394b3e35431
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/willhansen/levels-of-relativity 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" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded target-triple v0.1.3
[INFO] [stderr]   Downloaded trybuild v1.0.101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4174904c8ab79b6f52217cc502261dd4f9de70b8f2ecf1b91bf7ba146bdfb4f3
[INFO] running `Command { std: "docker" "start" "-a" "4174904c8ab79b6f52217cc502261dd4f9de70b8f2ecf1b91bf7ba146bdfb4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4174904c8ab79b6f52217cc502261dd4f9de70b8f2ecf1b91bf7ba146bdfb4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4174904c8ab79b6f52217cc502261dd4f9de70b8f2ecf1b91bf7ba146bdfb4f3", kill_on_drop: false }`
[INFO] [stdout] 4174904c8ab79b6f52217cc502261dd4f9de70b8f2ecf1b91bf7ba146bdfb4f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebaa48d73d3710eb389e7df5251b3dcfce1dd1aed31d8d288585d095059ded39
[INFO] running `Command { std: "docker" "start" "-a" "ebaa48d73d3710eb389e7df5251b3dcfce1dd1aed31d8d288585d095059ded39", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling target-triple v0.1.3
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]     Checking toml_edit v0.22.22
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stderr]     Checking trybuild v1.0.101
[INFO] [stderr]     Checking ladder_types v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `R0`, `R1`, `R2`, `R3`, and `R4`
[INFO] [stdout]  --> src/numbers_on_ladders.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::kiss_ladder::{LadderRung, R0, R1, R2, R3, R4};
[INFO] [stdout]   |                                      ^^  ^^  ^^  ^^  ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `derive_more`
[INFO] [stdout]  --> src/numbers_on_ladders.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use derive_more;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num`
[INFO] [stdout]  --> src/numbers_on_ladders.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `R3` and `R4`
[INFO] [stdout]  --> src/numbers_on_ladders.rs:1:50
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::kiss_ladder::{LadderRung, R0, R1, R2, R3, R4};
[INFO] [stdout]   |                                                  ^^  ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `derive_more`
[INFO] [stdout]  --> src/numbers_on_ladders.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use derive_more;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num`
[INFO] [stdout]  --> src/numbers_on_ladders.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValOnLadder` is never constructed
[INFO] [stdout]  --> src/numbers_on_ladders.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct ValOnLadder<T: Copy, R: LadderRung>(T, R);
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `val` are never used
[INFO] [stdout]   --> src/numbers_on_ladders.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<T: Copy, R: LadderRung> ValOnLadder<T, R> {
[INFO] [stdout]    | ---------------------------------------------- associated items in this implementation
[INFO] [stdout] 10 |     fn new(x: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn val(&self) -> T {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.83s
[INFO] running `Command { std: "docker" "inspect" "ebaa48d73d3710eb389e7df5251b3dcfce1dd1aed31d8d288585d095059ded39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebaa48d73d3710eb389e7df5251b3dcfce1dd1aed31d8d288585d095059ded39", kill_on_drop: false }`
[INFO] [stdout] ebaa48d73d3710eb389e7df5251b3dcfce1dd1aed31d8d288585d095059ded39
