[INFO] cloning repository https://github.com/rurunosep/maplewood
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rurunosep/maplewood" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frurunosep%2Fmaplewood", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frurunosep%2Fmaplewood'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecb82e51ca9adf7e9a906cd12b370c40d388c99b
[INFO] checking rurunosep/maplewood against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frurunosep%2Fmaplewood" "/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/rurunosep/maplewood on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rurunosep/maplewood
[INFO] finished tweaking git repo https://github.com/rurunosep/maplewood
[INFO] tweaked toml for git repo https://github.com/rurunosep/maplewood written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rurunosep/maplewood 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rlua v0.19.7
[INFO] [stderr]   Downloaded anymap v0.12.1
[INFO] [stderr]   Downloaded rlua-lua54-sys v0.1.6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbce3dfde19478487a268ac31063ce4451ac0acebcb83926c5c2a685eda814bd
[INFO] running `Command { std: "docker" "start" "-a" "cbce3dfde19478487a268ac31063ce4451ac0acebcb83926c5c2a685eda814bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbce3dfde19478487a268ac31063ce4451ac0acebcb83926c5c2a685eda814bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbce3dfde19478487a268ac31063ce4451ac0acebcb83926c5c2a685eda814bd", kill_on_drop: false }`
[INFO] [stdout] cbce3dfde19478487a268ac31063ce4451ac0acebcb83926c5c2a685eda814bd
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ad8816f43fd73a1381856a140b60e97ee954fd3a7dbee95d58f464f7baf2dd4
[INFO] running `Command { std: "docker" "start" "-a" "6ad8816f43fd73a1381856a140b60e97ee954fd3a7dbee95d58f464f7baf2dd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling rlua v0.19.7
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking euclid v0.22.9
[INFO] [stderr]    Compiling rlua-lua54-sys v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking maplewood v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.81s
[INFO] running `Command { std: "docker" "inspect" "6ad8816f43fd73a1381856a140b60e97ee954fd3a7dbee95d58f464f7baf2dd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad8816f43fd73a1381856a140b60e97ee954fd3a7dbee95d58f464f7baf2dd4", kill_on_drop: false }`
[INFO] [stdout] 6ad8816f43fd73a1381856a140b60e97ee954fd3a7dbee95d58f464f7baf2dd4