[INFO] cloning repository https://github.com/ftilde/kassette
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ftilde/kassette" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fkassette", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fkassette'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c79410112ae09bf4b924a1c252167fce87c7aa4
[INFO] checking ftilde/kassette against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fkassette" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ftilde/kassette on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ftilde/kassette
[INFO] finished tweaking git repo https://github.com/ftilde/kassette
[INFO] tweaked toml for git repo https://github.com/ftilde/kassette written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ftilde/kassette already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52a328439d3e04b3ef6df58d1829904ace26332c479573b49ab9ea21d51d9b68
[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" "52a328439d3e04b3ef6df58d1829904ace26332c479573b49ab9ea21d51d9b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52a328439d3e04b3ef6df58d1829904ace26332c479573b49ab9ea21d51d9b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a328439d3e04b3ef6df58d1829904ace26332c479573b49ab9ea21d51d9b68", kill_on_drop: false }`
[INFO] [stdout] 52a328439d3e04b3ef6df58d1829904ace26332c479573b49ab9ea21d51d9b68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3473fefd647f821f724b73e77e413f9c12594bbe9709d0bfe1369b0cf8ff098e
[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" "3473fefd647f821f724b73e77e413f9c12594bbe9709d0bfe1369b0cf8ff098e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]    Compiling kassette v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking lewton v0.10.1
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]    Compiling mini-internal v0.1.13
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]     Checking spidev v0.4.0
[INFO] [stderr]     Checking alsa v0.4.2
[INFO] [stderr]     Checking rfid-rs v0.1.1
[INFO] [stderr]     Checking miniserde v0.1.13
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stdout] warning: field is never read: `seek_pos`
[INFO] [stdout]   --> src/player.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     seek_pos: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `seek_pos`
[INFO] [stdout]   --> src/player.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     seek_pos: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.17s
[INFO] running `Command { std: "docker" "inspect" "3473fefd647f821f724b73e77e413f9c12594bbe9709d0bfe1369b0cf8ff098e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3473fefd647f821f724b73e77e413f9c12594bbe9709d0bfe1369b0cf8ff098e", kill_on_drop: false }`
[INFO] [stdout] 3473fefd647f821f724b73e77e413f9c12594bbe9709d0bfe1369b0cf8ff098e