[INFO] cloning repository https://github.com/martin-fink/i2c-emulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martin-fink/i2c-emulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartin-fink%2Fi2c-emulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartin-fink%2Fi2c-emulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e053661d0f8866e15093c39fc9b98338e1454021
[INFO] checking martin-fink/i2c-emulation against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartin-fink%2Fi2c-emulation" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/martin-fink/i2c-emulation on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/martin-fink/i2c-emulation
[INFO] finished tweaking git repo https://github.com/martin-fink/i2c-emulation
[INFO] tweaked toml for git repo https://github.com/martin-fink/i2c-emulation written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/martin-fink/i2c-emulation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 833092cae4e44362589a03cdcec26b566b69ed06555d3608e89ff0e3c2e924c5
[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" "833092cae4e44362589a03cdcec26b566b69ed06555d3608e89ff0e3c2e924c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "833092cae4e44362589a03cdcec26b566b69ed06555d3608e89ff0e3c2e924c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833092cae4e44362589a03cdcec26b566b69ed06555d3608e89ff0e3c2e924c5", kill_on_drop: false }`
[INFO] [stdout] 833092cae4e44362589a03cdcec26b566b69ed06555d3608e89ff0e3c2e924c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] c2fa89191c4d10fb80a43d8a0b198ca1ed56452eaadf850b6cd812926015086a
[INFO] running `Command { std: "docker" "start" "-a" "c2fa89191c4d10fb80a43d8a0b198ca1ed56452eaadf850b6cd812926015086a", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking clap v2.28.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking fern v0.4.4
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking rppal v0.2.0
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking i2c v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/bit_layer/error.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/bit_layer/error.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]    |                                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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 12.62s
[INFO] running `Command { std: "docker" "inspect" "c2fa89191c4d10fb80a43d8a0b198ca1ed56452eaadf850b6cd812926015086a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2fa89191c4d10fb80a43d8a0b198ca1ed56452eaadf850b6cd812926015086a", kill_on_drop: false }`
[INFO] [stdout] c2fa89191c4d10fb80a43d8a0b198ca1ed56452eaadf850b6cd812926015086a