[INFO] cloning repository https://github.com/marycourtland/magpie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marycourtland/magpie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarycourtland%2Fmagpie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarycourtland%2Fmagpie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 780c1c78f83cdfa13980efd5a4f2c24ebb4d8183
[INFO] testing marycourtland/magpie against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarycourtland%2Fmagpie" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marycourtland/magpie on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/marycourtland/magpie
[INFO] finished tweaking git repo https://github.com/marycourtland/magpie
[INFO] tweaked toml for git repo https://github.com/marycourtland/magpie written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate git repo https://github.com/marycourtland/magpie already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1553e1550dbeee3d584ca1f0d556127df9fc5d79b7f968151b526006eb6310e4
[INFO] running `Command { std: "docker" "start" "-a" "1553e1550dbeee3d584ca1f0d556127df9fc5d79b7f968151b526006eb6310e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1553e1550dbeee3d584ca1f0d556127df9fc5d79b7f968151b526006eb6310e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1553e1550dbeee3d584ca1f0d556127df9fc5d79b7f968151b526006eb6310e4", kill_on_drop: false }`
[INFO] [stdout] 1553e1550dbeee3d584ca1f0d556127df9fc5d79b7f968151b526006eb6310e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18521aa6415676e5cabdcb9cd4ea4f8380608b4054b94210f073c66a1ee3ab5a
[INFO] running `Command { std: "docker" "start" "-a" "18521aa6415676e5cabdcb9cd4ea4f8380608b4054b94210f073c66a1ee3ab5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling magpie v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/pi/act_led.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     for i in 0..times {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: formatting may not be suitable for sub-register argument
[INFO] [stdout]   --> src/pi/act_led.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |         asm!("mov r2,{0}", in(reg) hex_countdown);
[INFO] [stdout]    |                      ^^^           ------------- for this argument
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(asm_sub_register)]` on by default
[INFO] [stdout]    = help: use the `e` modifier to have the register formatted as `eax`
[INFO] [stdout]    = help: or use the `r` modifier to keep the default formatting of `rax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/pi/act_led.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     unsafe {
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: avoid using named labels in inline assembly
[INFO] [stdout]   --> src/pi/act_led.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 |         asm!("wait1$:");
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(named_asm_labels)]` on by default
[INFO] [stdout]    = help: only local labels of the form `<number>:` should be used in inline asm
[INFO] [stdout]    = note: see the asm section of the unstable book <https://doc.rust-lang.org/nightly/unstable-book/library-features/asm.html#labels> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `magpie` due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "18521aa6415676e5cabdcb9cd4ea4f8380608b4054b94210f073c66a1ee3ab5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18521aa6415676e5cabdcb9cd4ea4f8380608b4054b94210f073c66a1ee3ab5a", kill_on_drop: false }`
[INFO] [stdout] 18521aa6415676e5cabdcb9cd4ea4f8380608b4054b94210f073c66a1ee3ab5a