[INFO] cloning repository https://github.com/piotrkubala/nim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/piotrkubala/nim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiotrkubala%2Fnim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiotrkubala%2Fnim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17d5d6e78acfdd77a151624d40da1a519e44cdd8
[INFO] checking piotrkubala/nim against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiotrkubala%2Fnim" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/piotrkubala/nim on toolchain 2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/piotrkubala/nim
[INFO] finished tweaking git repo https://github.com/piotrkubala/nim
[INFO] tweaked toml for git repo https://github.com/piotrkubala/nim written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/piotrkubala/nim 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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rust-sdl2/rust-sdl2`
[INFO] [stderr]     Updating git submodule `https://github.com/libsdl-org/SDL`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.0-alpha.5
[INFO] [stderr]   Downloaded rand_core v0.9.0-alpha.0
[INFO] [stderr]   Downloaded rand_chacha v0.9.0-alpha.0
[INFO] [stderr]   Downloaded zerocopy v0.8.0-alpha.5
[INFO] [stderr]   Downloaded rand v0.9.0-alpha.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a8c58d25056c23bc8e3f65a4d203ad3ee3f8e874c7c1169259dfb0cb38767a1
[INFO] running `Command { std: "docker" "start" "-a" "0a8c58d25056c23bc8e3f65a4d203ad3ee3f8e874c7c1169259dfb0cb38767a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a8c58d25056c23bc8e3f65a4d203ad3ee3f8e874c7c1169259dfb0cb38767a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a8c58d25056c23bc8e3f65a4d203ad3ee3f8e874c7c1169259dfb0cb38767a1", kill_on_drop: false }`
[INFO] [stdout] 0a8c58d25056c23bc8e3f65a4d203ad3ee3f8e874c7c1169259dfb0cb38767a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27fcf054c8d55a2edbb98b2480fc1b422d3079aab675fa950aebaab83ebb35de
[INFO] running `Command { std: "docker" "start" "-a" "27fcf054c8d55a2edbb98b2480fc1b422d3079aab675fa950aebaab83ebb35de", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling zerocopy v0.8.0-alpha.5
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling sdl2 v0.36.0 (https://github.com/rust-sdl2/rust-sdl2#79f8ad02)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling sdl2-sys v0.36.0 (https://github.com/rust-sdl2/rust-sdl2#79f8ad02)
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.9.0-alpha.0
[INFO] [stderr]     Checking rand_chacha v0.9.0-alpha.0
[INFO] [stderr]     Checking rand v0.9.0-alpha.0
[INFO] [stderr]     Checking nim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/game/system.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Other(Event)
[INFO] [stdout]    |     ----- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -     Other(Event)
[INFO] [stdout] 16 +     Other(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_default_heap` and `remove_last_heap` are never used
[INFO] [stdout]    --> src/game/nim/nim_game.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 135 | impl NimGame {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn add_default_heap(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     pub fn remove_last_heap(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/game/system.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Other(Event)
[INFO] [stdout]    |     ----- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -     Other(Event)
[INFO] [stdout] 16 +     Other(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_default_heap` and `remove_last_heap` are never used
[INFO] [stdout]    --> src/game/nim/nim_game.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 135 | impl NimGame {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn add_default_heap(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     pub fn remove_last_heap(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.73s
[INFO] running `Command { std: "docker" "inspect" "27fcf054c8d55a2edbb98b2480fc1b422d3079aab675fa950aebaab83ebb35de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27fcf054c8d55a2edbb98b2480fc1b422d3079aab675fa950aebaab83ebb35de", kill_on_drop: false }`
[INFO] [stdout] 27fcf054c8d55a2edbb98b2480fc1b422d3079aab675fa950aebaab83ebb35de