[INFO] cloning repository https://github.com/adamgreig/amp_flashprog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamgreig/amp_flashprog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamgreig%2Famp_flashprog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamgreig%2Famp_flashprog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ab4917e5308a75a26518c478a454c91e7d3e24b
[INFO] checking adamgreig/amp_flashprog against master#a42d94ebb883116f2867cbe3016d9bde9ca6d3f7 for pr-117593
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamgreig%2Famp_flashprog" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamgreig/amp_flashprog on toolchain a42d94ebb883116f2867cbe3016d9bde9ca6d3f7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a42d94ebb883116f2867cbe3016d9bde9ca6d3f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/adamgreig/amp_flashprog
[INFO] finished tweaking git repo https://github.com/adamgreig/amp_flashprog
[INFO] tweaked toml for git repo https://github.com/adamgreig/amp_flashprog written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/adamgreig/amp_flashprog 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" "+a42d94ebb883116f2867cbe3016d9bde9ca6d3f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking adamgreig/amp_flashprog against try#031b389f0c31c0f91c9464d26313ae513dbe8d36 for pr-117593
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamgreig%2Famp_flashprog" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamgreig/amp_flashprog on toolchain 031b389f0c31c0f91c9464d26313ae513dbe8d36
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+031b389f0c31c0f91c9464d26313ae513dbe8d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/adamgreig/amp_flashprog
[INFO] finished tweaking git repo https://github.com/adamgreig/amp_flashprog
[INFO] tweaked toml for git repo https://github.com/adamgreig/amp_flashprog written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/adamgreig/amp_flashprog 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" "+031b389f0c31c0f91c9464d26313ae513dbe8d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/japaric/stm32f103xx-hal`
[INFO] [stderr]     Updating git repository `https://github.com/mvirkkunen/stm32f103xx-usb`
[INFO] [stderr]     Updating git repository `https://github.com/mvirkkunen/usb-device`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking adamgreig/amp_flashprog against try#031b389f0c31c0f91c9464d26313ae513dbe8d36 for pr-117593
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamgreig%2Famp_flashprog" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamgreig/amp_flashprog on toolchain 031b389f0c31c0f91c9464d26313ae513dbe8d36
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+031b389f0c31c0f91c9464d26313ae513dbe8d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/adamgreig/amp_flashprog
[INFO] finished tweaking git repo https://github.com/adamgreig/amp_flashprog
[INFO] tweaked toml for git repo https://github.com/adamgreig/amp_flashprog written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/adamgreig/amp_flashprog 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" "+031b389f0c31c0f91c9464d26313ae513dbe8d36" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded embedded-hal v0.2.2
[INFO] [stderr]   Downloaded cortex-m-rt v0.5.7
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.5
[INFO] [stderr]   Downloaded nb v0.1.1
[INFO] [stderr]   Downloaded cortex-m v0.5.8
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.1.3
[INFO] [stderr]   Downloaded stm32f103xx v0.10.0
[INFO] [stderr]   Downloaded vcell v0.1.0
[INFO] [stderr]   Downloaded heapless v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+031b389f0c31c0f91c9464d26313ae513dbe8d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f34ed4017f60b0a67755fd09fcbb1df782324201455f0ee085b56890228168f8
[INFO] running `Command { std: "docker" "start" "-a" "f34ed4017f60b0a67755fd09fcbb1df782324201455f0ee085b56890228168f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f34ed4017f60b0a67755fd09fcbb1df782324201455f0ee085b56890228168f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f34ed4017f60b0a67755fd09fcbb1df782324201455f0ee085b56890228168f8", kill_on_drop: false }`
[INFO] [stdout] f34ed4017f60b0a67755fd09fcbb1df782324201455f0ee085b56890228168f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+031b389f0c31c0f91c9464d26313ae513dbe8d36" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22246e6efd4c2249b0eafa71eee207798a068db53eec7603e757b60c3aee977f
[INFO] running `Command { std: "docker" "start" "-a" "22246e6efd4c2249b0eafa71eee207798a068db53eec7603e757b60c3aee977f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling cortex-m-rt v0.6.5
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling cortex-m v0.5.8
[INFO] [stderr]    Compiling stm32f103xx v0.10.0
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling stm32f103xx-hal v0.1.0 (https://github.com/japaric/stm32f103xx-hal?rev=d1bfbbf9148fc3b9d095fdb3f299aca4070531d8#d1bfbbf9)
[INFO] [stderr]     Checking untagged-option v0.1.1
[INFO] [stderr]     Checking nb v0.1.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/untagged-option-0.1.1/src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(untagged_unions, const_fn)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/untagged-option-0.1.1/src/lib.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(untagged_unions, 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[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/untagged-option-0.1.1/src/lib.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub some: T,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
[INFO] [stdout] help: wrap the field type in `ManuallyDrop<...>`
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub some: std::mem::ManuallyDrop<T>,
[INFO] [stdout]    |               +++++++++++++++++++++++ +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0740.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untagged-option` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "22246e6efd4c2249b0eafa71eee207798a068db53eec7603e757b60c3aee977f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22246e6efd4c2249b0eafa71eee207798a068db53eec7603e757b60c3aee977f", kill_on_drop: false }`
[INFO] [stdout] 22246e6efd4c2249b0eafa71eee207798a068db53eec7603e757b60c3aee977f