[INFO] cloning repository https://github.com/barafael/longan-nano-shader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/barafael/longan-nano-shader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarafael%2Flongan-nano-shader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarafael%2Flongan-nano-shader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8940943cb87798786c3cfae773edd36f2f23e77
[INFO] checking barafael/longan-nano-shader against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarafael%2Flongan-nano-shader" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/barafael/longan-nano-shader on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking git repo https://github.com/barafael/longan-nano-shader
[INFO] finished tweaking git repo https://github.com/barafael/longan-nano-shader
[INFO] tweaked toml for git repo https://github.com/barafael/longan-nano-shader written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/barafael/longan-nano-shader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22c7ad1447fb8c7877699f8f38a788a23acaea66620d97bc13877d85896da1f8
[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" "22c7ad1447fb8c7877699f8f38a788a23acaea66620d97bc13877d85896da1f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22c7ad1447fb8c7877699f8f38a788a23acaea66620d97bc13877d85896da1f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22c7ad1447fb8c7877699f8f38a788a23acaea66620d97bc13877d85896da1f8", kill_on_drop: false }`
[INFO] [stdout] 22c7ad1447fb8c7877699f8f38a788a23acaea66620d97bc13877d85896da1f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 403d97a63971b487cd18fe34f7e72d8272b8b01c474982008ab207cf94306e7c
[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" "403d97a63971b487cd18fe34f7e72d8272b8b01c474982008ab207cf94306e7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling gd32vf103xx-hal v0.4.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling longan-nano v0.2.0
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]     Checking micromath v1.1.1
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking embedded-hal v0.2.5
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]     Checking embedded-graphics v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking optimath v0.3.0 (https://github.com/barafael/optimath.git#1fea45a0)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/optimath-90b5678ee8cfdcd5/1fea45a/src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `optimath` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "403d97a63971b487cd18fe34f7e72d8272b8b01c474982008ab207cf94306e7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "403d97a63971b487cd18fe34f7e72d8272b8b01c474982008ab207cf94306e7c", kill_on_drop: false }`
[INFO] [stdout] 403d97a63971b487cd18fe34f7e72d8272b8b01c474982008ab207cf94306e7c