[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#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fkassette" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ftilde/kassette on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/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-1/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1fc235c8065de53737aeaf2865b04e7575180e4c8d9c60d76c0098f1ebfa9a9
[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" "c1fc235c8065de53737aeaf2865b04e7575180e4c8d9c60d76c0098f1ebfa9a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1fc235c8065de53737aeaf2865b04e7575180e4c8d9c60d76c0098f1ebfa9a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1fc235c8065de53737aeaf2865b04e7575180e4c8d9c60d76c0098f1ebfa9a9", kill_on_drop: false }`
[INFO] [stdout] c1fc235c8065de53737aeaf2865b04e7575180e4c8d9c60d76c0098f1ebfa9a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] 3a47693512ceff1c8ffc5f0ba3689f43a350f53b82c3ad7be32cbc61e1f82355
[INFO] running `Command { std: "docker" "start" "-a" "3a47693512ceff1c8ffc5f0ba3689f43a350f53b82c3ad7be32cbc61e1f82355", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling kassette v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking lewton v0.10.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking spidev v0.4.0
[INFO] [stderr]     Checking alsa v0.4.2
[INFO] [stderr]     Checking rfid-rs v0.1.1
[INFO] [stderr]    Compiling mini-internal v0.1.13
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]     Checking miniserde v0.1.13
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.19s
[INFO] running `Command { std: "docker" "inspect" "3a47693512ceff1c8ffc5f0ba3689f43a350f53b82c3ad7be32cbc61e1f82355", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a47693512ceff1c8ffc5f0ba3689f43a350f53b82c3ad7be32cbc61e1f82355", kill_on_drop: false }`
[INFO] [stdout] 3a47693512ceff1c8ffc5f0ba3689f43a350f53b82c3ad7be32cbc61e1f82355