[INFO] fetching crate rustpiboot 0.1.0...
[INFO] checking rustpiboot-0.1.0 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate rustpiboot 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rustpiboot 0.1.0 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustpiboot 0.1.0
[INFO] finished tweaking crates.io crate rustpiboot 0.1.0
[INFO] tweaked toml for crates.io crate rustpiboot 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate rustpiboot 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded encoding8 v0.3.2
[INFO] [stderr]   Downloaded libusb-sys v0.2.3
[INFO] [stderr]   Downloaded bit-set v0.2.0
[INFO] [stderr]   Downloaded dd-lib v0.2.1
[INFO] [stderr]   Downloaded bit-vec v0.6.1
[INFO] [stderr]   Downloaded libusb v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9132dc79e2d169308c3032ad57b2d4b90f89a029bb1f610f1a00ac0eb33fcab1
[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" "9132dc79e2d169308c3032ad57b2d4b90f89a029bb1f610f1a00ac0eb33fcab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9132dc79e2d169308c3032ad57b2d4b90f89a029bb1f610f1a00ac0eb33fcab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9132dc79e2d169308c3032ad57b2d4b90f89a029bb1f610f1a00ac0eb33fcab1", kill_on_drop: false }`
[INFO] [stdout] 9132dc79e2d169308c3032ad57b2d4b90f89a029bb1f610f1a00ac0eb33fcab1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "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] 263e3f685e4e69091e852bf37b73aa53c2b830930199fa5ceb6e410d7e3cc08d
[INFO] running `Command { std: "docker" "start" "-a" "263e3f685e4e69091e852bf37b73aa53c2b830930199fa5ceb6e410d7e3cc08d", kill_on_drop: false }`
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking bit-vec v0.6.1
[INFO] [stderr]     Checking encoding8 v0.3.2
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking libusb v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking dd-lib v0.2.1
[INFO] [stderr]     Checking rustpiboot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `overlay`
[INFO] [stdout]    --> src/lib.rs:280:5
[INFO] [stdout]     |
[INFO] [stdout] 280 |     overlay: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `port`
[INFO] [stdout]    --> src/lib.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 283 |     port: Option<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `overlay`
[INFO] [stdout]    --> src/lib.rs:280:5
[INFO] [stdout]     |
[INFO] [stdout] 280 |     overlay: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `port`
[INFO] [stdout]    --> src/lib.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 283 |     port: Option<u8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.28s
[INFO] running `Command { std: "docker" "inspect" "263e3f685e4e69091e852bf37b73aa53c2b830930199fa5ceb6e410d7e3cc08d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "263e3f685e4e69091e852bf37b73aa53c2b830930199fa5ceb6e410d7e3cc08d", kill_on_drop: false }`
[INFO] [stdout] 263e3f685e4e69091e852bf37b73aa53c2b830930199fa5ceb6e410d7e3cc08d
