[INFO] fetching crate umm-malloc 0.3.2...
[INFO] testing umm-malloc-0.3.2 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate umm-malloc 0.3.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate umm-malloc 0.3.2
[INFO] finished tweaking crates.io crate umm-malloc 0.3.2
[INFO] tweaked toml for crates.io crate umm-malloc 0.3.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate umm-malloc 0.3.2 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate umm-malloc 0.3.2 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded umm-malloc-sys v0.3.2
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.3
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec22f05be1fa61fe4b954a9e65b3d82389d95b05f6934c4a87c46416f3797ea9
[INFO] running `Command { std: "docker" "start" "-a" "ec22f05be1fa61fe4b954a9e65b3d82389d95b05f6934c4a87c46416f3797ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec22f05be1fa61fe4b954a9e65b3d82389d95b05f6934c4a87c46416f3797ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec22f05be1fa61fe4b954a9e65b3d82389d95b05f6934c4a87c46416f3797ea9", kill_on_drop: false }`
[INFO] [stdout] ec22f05be1fa61fe4b954a9e65b3d82389d95b05f6934c4a87c46416f3797ea9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46c314bf3ad2dca008f6079f5732d47339b6326af79503607ed52ac85faaaa0d
[INFO] running `Command { std: "docker" "start" "-a" "46c314bf3ad2dca008f6079f5732d47339b6326af79503607ed52ac85faaaa0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling umm-malloc-sys v0.3.2
[INFO] [stderr]    Compiling umm-malloc v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: A critical section cargo feature must be enabled
[INFO] [stdout]    --> src/lib.rs:156:1
[INFO] [stdout]     |
[INFO] [stdout] 156 | compile_error!("A critical section cargo feature must be enabled");
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `umm-malloc` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "46c314bf3ad2dca008f6079f5732d47339b6326af79503607ed52ac85faaaa0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46c314bf3ad2dca008f6079f5732d47339b6326af79503607ed52ac85faaaa0d", kill_on_drop: false }`
[INFO] [stdout] 46c314bf3ad2dca008f6079f5732d47339b6326af79503607ed52ac85faaaa0d