[INFO] cloning repository https://github.com/kekonen/playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kekonen/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkekonen%2Fplayground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkekonen%2Fplayground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f162082004c9d03044428fa9f6c3d81168ad5c58
[INFO] checking kekonen/playground against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkekonen%2Fplayground" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kekonen/playground on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kekonen/playground
[INFO] finished tweaking git repo https://github.com/kekonen/playground
[INFO] tweaked toml for git repo https://github.com/kekonen/playground written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kekonen/playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8573f557e8d4db2dc96faa43b869dd5052978854906c12990209bf68dce7ac13
[INFO] running `Command { std: "docker" "start" "-a" "8573f557e8d4db2dc96faa43b869dd5052978854906c12990209bf68dce7ac13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8573f557e8d4db2dc96faa43b869dd5052978854906c12990209bf68dce7ac13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8573f557e8d4db2dc96faa43b869dd5052978854906c12990209bf68dce7ac13", kill_on_drop: false }`
[INFO] [stdout] 8573f557e8d4db2dc96faa43b869dd5052978854906c12990209bf68dce7ac13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35117052f5e8ee6a17c4c3c2692a2e471286c9182255450836b8242a4eff00a3
[INFO] running `Command { std: "docker" "start" "-a" "35117052f5e8ee6a17c4c3c2692a2e471286c9182255450836b8242a4eff00a3", kill_on_drop: false }`
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Solver2`
[INFO] [stdout]   --> src/lib.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut solver = Solver2::new(reservations, units);
[INFO] [stdout]    |                          ^^^^^^^ use of undeclared type `Solver2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Unit` in this scope
[INFO] [stdout]   --> src/lib.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |             Unit{name: String::from("A"), capacity: 2},
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Unit` in this scope
[INFO] [stdout]   --> src/lib.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             Unit{name: String::from("B"), capacity: 2},
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Unit` in this scope
[INFO] [stdout]   --> src/lib.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             Unit{name: String::from("C"), capacity: 2},
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Reservation` in this scope
[INFO] [stdout]   --> src/lib.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |             Reservation{name: String::from("Y"), weight: 2, min: 2, max: 5},
[INFO] [stdout]    |             ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Reservation` in this scope
[INFO] [stdout]   --> src/lib.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |             Reservation{name: String::from("Z"), weight: 2, min: 2, max: 5}
[INFO] [stdout]    |             ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0422, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0422`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `playground` due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function is never used: `skip`
[INFO] [stdout]    --> src/main.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn skip(&self, hops: usize) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip`
[INFO] [stdout]    --> src/main.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 |     fn skip(&self, hops: usize) -> bool {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "35117052f5e8ee6a17c4c3c2692a2e471286c9182255450836b8242a4eff00a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35117052f5e8ee6a17c4c3c2692a2e471286c9182255450836b8242a4eff00a3", kill_on_drop: false }`
[INFO] [stdout] 35117052f5e8ee6a17c4c3c2692a2e471286c9182255450836b8242a4eff00a3