[INFO] fetching crate nucleo-h7xx 0.2.1...
[INFO] checking nucleo-h7xx-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate nucleo-h7xx 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate nucleo-h7xx 0.2.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate nucleo-h7xx 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate nucleo-h7xx 0.2.1
[INFO] tweaked toml for crates.io crate nucleo-h7xx 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate nucleo-h7xx 0.2.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded cortex-m-log v0.7.0
[INFO] [stderr]   Downloaded embedded-timeout-macros v0.3.0
[INFO] [stderr]   Downloaded gcd v2.1.0
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded semver v1.0.14
[INFO] [stderr]   Downloaded riscv v0.7.0
[INFO] [stderr]   Downloaded spin v0.9.4
[INFO] [stderr]   Downloaded stm32h7xx-hal v0.13.0
[INFO] [stderr]   Downloaded smoltcp v0.8.1
[INFO] [stderr]   Downloaded cortex-m v0.7.6
[INFO] [stderr]   Downloaded embedded-dma v0.2.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.1
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.10
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.5.0
[INFO] [stderr]   Downloaded fugit v0.3.6
[INFO] [stderr]   Downloaded managed v0.8.0
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded critical-section v0.2.7
[INFO] [stderr]   Downloaded panic-halt v0.2.0
[INFO] [stderr]   Downloaded panic-itm v0.4.2
[INFO] [stderr]   Downloaded panic-rtt-target v0.1.2
[INFO] [stderr]   Downloaded panic-semihosting v0.6.0
[INFO] [stderr]   Downloaded stm32h7 v0.15.1
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9bccb4189729309dbc9a43b2b35fc53dd164e092874fad2654299d85760d9fb
[INFO] running `Command { std: "docker" "start" "-a" "b9bccb4189729309dbc9a43b2b35fc53dd164e092874fad2654299d85760d9fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9bccb4189729309dbc9a43b2b35fc53dd164e092874fad2654299d85760d9fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9bccb4189729309dbc9a43b2b35fc53dd164e092874fad2654299d85760d9fb", kill_on_drop: false }`
[INFO] [stdout] b9bccb4189729309dbc9a43b2b35fc53dd164e092874fad2654299d85760d9fb
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c139e9e9b69eeb3d8128819523d87097982e7a5782dd41f30228815b9f666b09
[INFO] running `Command { std: "docker" "start" "-a" "c139e9e9b69eeb3d8128819523d87097982e7a5782dd41f30228815b9f666b09", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]    Compiling stm32h7 v0.15.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling cortex-m-semihosting v0.5.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling cortex-m-log v0.7.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling nucleo-h7xx v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking embedded-timeout-macros v0.3.0
[INFO] [stderr]     Checking rtt-target v0.3.1
[INFO] [stderr]     Checking panic-itm v0.4.2
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]     Checking panic-semihosting v0.6.0
[INFO] [stderr]     Checking gcd v2.1.0
[INFO] [stderr]     Checking panic-rtt-target v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking fugit v0.3.6
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]     Checking stm32h7xx-hal v0.13.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.52s
[INFO] running `Command { std: "docker" "inspect" "c139e9e9b69eeb3d8128819523d87097982e7a5782dd41f30228815b9f666b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c139e9e9b69eeb3d8128819523d87097982e7a5782dd41f30228815b9f666b09", kill_on_drop: false }`
[INFO] [stdout] c139e9e9b69eeb3d8128819523d87097982e7a5782dd41f30228815b9f666b09
[INFO] checking nucleo-h7xx-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate nucleo-h7xx 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate nucleo-h7xx 0.2.1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate nucleo-h7xx 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate nucleo-h7xx 0.2.1
[INFO] tweaked toml for crates.io crate nucleo-h7xx 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate nucleo-h7xx 0.2.1 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 648a172e64789f3cd9f20322d34c3d74713772a37ff38163aa3525052672fd7d
[INFO] running `Command { std: "docker" "start" "-a" "648a172e64789f3cd9f20322d34c3d74713772a37ff38163aa3525052672fd7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "648a172e64789f3cd9f20322d34c3d74713772a37ff38163aa3525052672fd7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "648a172e64789f3cd9f20322d34c3d74713772a37ff38163aa3525052672fd7d", kill_on_drop: false }`
[INFO] [stdout] 648a172e64789f3cd9f20322d34c3d74713772a37ff38163aa3525052672fd7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d7e4d8a8cf35c4eb48399c00be8ec8545ddf92645909146f3fa775a7f31fee7
[INFO] running `Command { std: "docker" "start" "-a" "7d7e4d8a8cf35c4eb48399c00be8ec8545ddf92645909146f3fa775a7f31fee7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling stm32h7 v0.15.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]    Compiling cortex-m-log v0.7.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling nucleo-h7xx v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking embedded-timeout-macros v0.3.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking gcd v2.1.0
[INFO] [stderr]     Checking rtt-target v0.3.1
[INFO] [stderr]     Checking panic-itm v0.4.2
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]     Checking fugit v0.3.6
[INFO] [stderr]     Checking panic-semihosting v0.6.0
[INFO] [stderr]     Checking panic-rtt-target v0.1.2
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]     Checking stm32h7xx-hal v0.13.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.80s
[INFO] running `Command { std: "docker" "inspect" "7d7e4d8a8cf35c4eb48399c00be8ec8545ddf92645909146f3fa775a7f31fee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d7e4d8a8cf35c4eb48399c00be8ec8545ddf92645909146f3fa775a7f31fee7", kill_on_drop: false }`
[INFO] [stdout] 7d7e4d8a8cf35c4eb48399c00be8ec8545ddf92645909146f3fa775a7f31fee7