[INFO] cloning repository https://github.com/nickmertin/bug-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nickmertin/bug-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickmertin%2Fbug-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickmertin%2Fbug-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04978b4a2952cb97f30f11044ebb62efad6daf78
[INFO] checking nickmertin/bug-example against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickmertin%2Fbug-example" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nickmertin/bug-example on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/nickmertin/bug-example
[INFO] finished tweaking git repo https://github.com/nickmertin/bug-example
[INFO] tweaked toml for git repo https://github.com/nickmertin/bug-example written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/nickmertin/bug-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded panic-semihosting v0.5.6
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.5
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.7
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.14
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded cortex-m v0.7.2
[INFO] [stderr]   Downloaded stm32g0xx-hal v0.1.0
[INFO] [stderr]   Downloaded stm32g0 v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 002f5b15c7f904b9306de73bbfd4a8216f0212faf84f973a60ae1485304661ea
[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" "002f5b15c7f904b9306de73bbfd4a8216f0212faf84f973a60ae1485304661ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "002f5b15c7f904b9306de73bbfd4a8216f0212faf84f973a60ae1485304661ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "002f5b15c7f904b9306de73bbfd4a8216f0212faf84f973a60ae1485304661ea", kill_on_drop: false }`
[INFO] [stdout] 002f5b15c7f904b9306de73bbfd4a8216f0212faf84f973a60ae1485304661ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--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] df339f5ca86b32101aaae4bc0e0ce51b9c362e3e9780689af241d72fa38fc8b9
[INFO] running `Command { std: "docker" "start" "-a" "df339f5ca86b32101aaae4bc0e0ce51b9c362e3e9780689af241d72fa38fc8b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.14
[INFO] [stderr]    Compiling stm32g0 v0.13.0
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]    Compiling bug-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cortex-m v0.7.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-hal v0.2.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking panic-semihosting v0.5.6
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking stm32g0xx-hal v0.1.0
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 26.81s
[INFO] running `Command { std: "docker" "inspect" "df339f5ca86b32101aaae4bc0e0ce51b9c362e3e9780689af241d72fa38fc8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df339f5ca86b32101aaae4bc0e0ce51b9c362e3e9780689af241d72fa38fc8b9", kill_on_drop: false }`
[INFO] [stdout] df339f5ca86b32101aaae4bc0e0ce51b9c362e3e9780689af241d72fa38fc8b9