[INFO] cloning repository https://github.com/jrforrest/rustnqueens
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrforrest/rustnqueens" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrforrest%2Frustnqueens", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrforrest%2Frustnqueens'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57d595004bbfda907263040f21e8be7898264d8c
[INFO] testing jrforrest/rustnqueens against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrforrest%2Frustnqueens" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jrforrest/rustnqueens on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jrforrest/rustnqueens
[INFO] finished tweaking git repo https://github.com/jrforrest/rustnqueens
[INFO] tweaked toml for git repo https://github.com/jrforrest/rustnqueens written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/jrforrest/rustnqueens already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ncurses v5.85.0
[INFO] [stderr]   Downloaded bit-set v0.2.0
[INFO] [stderr]   Downloaded unicode-segmentation v1.0.1
[INFO] [stderr]   Downloaded cursive v0.3.7
[INFO] [stderr]   Downloaded chan v0.1.18
[INFO] [stderr]   Downloaded chan-signal v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] e72ff33eca5982c84a288485c7dd2b2aa4e0f6a7b089c827ccf25565fbaca4b6
[INFO] running `Command { std: "docker" "start" "-a" "e72ff33eca5982c84a288485c7dd2b2aa4e0f6a7b089c827ccf25565fbaca4b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e72ff33eca5982c84a288485c7dd2b2aa4e0f6a7b089c827ccf25565fbaca4b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e72ff33eca5982c84a288485c7dd2b2aa4e0f6a7b089c827ccf25565fbaca4b6", kill_on_drop: false }`
[INFO] [stdout] e72ff33eca5982c84a288485c7dd2b2aa4e0f6a7b089c827ccf25565fbaca4b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c7a38d741a18ba161edf7e9de6a4a5b664ed4239ed21b5cf6c076a960ff984f
[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" "5c7a38d741a18ba161edf7e9de6a4a5b664ed4239ed21b5cf6c076a960ff984f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.11
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]    Compiling cursive v0.3.7
[INFO] [stderr]    Compiling odds v0.2.25
[INFO] [stderr]    Compiling unicode-segmentation v1.0.1
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling bit-set v0.2.0
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling ncurses v5.85.0
[INFO] [stderr]    Compiling chan v0.1.18
[INFO] [stderr]    Compiling chan-signal v0.1.7
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling rustnqueens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.53s
[INFO] running `Command { std: "docker" "inspect" "5c7a38d741a18ba161edf7e9de6a4a5b664ed4239ed21b5cf6c076a960ff984f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c7a38d741a18ba161edf7e9de6a4a5b664ed4239ed21b5cf6c076a960ff984f", kill_on_drop: false }`
[INFO] [stdout] 5c7a38d741a18ba161edf7e9de6a4a5b664ed4239ed21b5cf6c076a960ff984f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--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] dc0f535916274ea080d7de17860f029bee04ae62c4dd4998842eafeccc80069e
[INFO] running `Command { std: "docker" "start" "-a" "dc0f535916274ea080d7de17860f029bee04ae62c4dd4998842eafeccc80069e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustnqueens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `from_board` found for struct `Solution` in the current scope
[INFO] [stdout]   --> src/solution.rs:48:30
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Solution {
[INFO] [stdout]    | ------------------- function or associated item `from_board` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 48 |     let solution = Solution::from_board(&board);
[INFO] [stdout]    |                              ^^^^^^^^^^ function or associated item not found in `Solution`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustnqueens` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "dc0f535916274ea080d7de17860f029bee04ae62c4dd4998842eafeccc80069e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0f535916274ea080d7de17860f029bee04ae62c4dd4998842eafeccc80069e", kill_on_drop: false }`
[INFO] [stdout] dc0f535916274ea080d7de17860f029bee04ae62c4dd4998842eafeccc80069e