[INFO] fetching crate ddc-i2c 0.2.1...
[INFO] checking ddc-i2c-0.2.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate ddc-i2c 0.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ddc-i2c 0.2.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ddc-i2c 0.2.1
[INFO] finished tweaking crates.io crate ddc-i2c 0.2.1
[INFO] tweaked toml for crates.io crate ddc-i2c 0.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae64d3619240f081cfc5fd267ed567b128d29a36f3c20ab8f00a74bf7f46fc73
[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" "ae64d3619240f081cfc5fd267ed567b128d29a36f3c20ab8f00a74bf7f46fc73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae64d3619240f081cfc5fd267ed567b128d29a36f3c20ab8f00a74bf7f46fc73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae64d3619240f081cfc5fd267ed567b128d29a36f3c20ab8f00a74bf7f46fc73", kill_on_drop: false }`
[INFO] [stdout] ae64d3619240f081cfc5fd267ed567b128d29a36f3c20ab8f00a74bf7f46fc73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bd64b030cd322c29c2b506a69e887fb009c6870a3ca8ab4197f93a267a27a93
[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" "6bd64b030cd322c29c2b506a69e887fb009c6870a3ca8ab4197f93a267a27a93", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling uninitialized v0.0.2
[INFO] [stderr]     Checking mccs v0.1.0
[INFO] [stderr]     Checking ddc v0.2.2
[INFO] [stderr]     Checking resize-slice v0.1.3
[INFO] [stderr]     Checking i2c v0.1.0
[INFO] [stderr]     Checking ddc-i2c v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:243:32
[INFO] [stdout]     |
[INFO] [stdout] 243 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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/lib.rs:238:34
[INFO] [stdout]     |
[INFO] [stdout] 238 |             Error::I2c(ref e) => error::Error::description(e),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[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/lib.rs:239:34
[INFO] [stdout]     |
[INFO] [stdout] 239 |             Error::Ddc(ref e) => error::Error::description(e),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]    --> src/lib.rs:245:34
[INFO] [stdout]     |
[INFO] [stdout] 245 |             Error::I2c(ref e) => error::Error::cause(e),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]    --> src/lib.rs:246:34
[INFO] [stdout]     |
[INFO] [stdout] 246 |             Error::Ddc(ref e) => error::Error::cause(e),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking edid v0.2.0
[INFO] [stdout] warning: unused import: `std::env::args`
[INFO] [stdout]  --> examples/vcp.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::env::args;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ddc`
[INFO] [stdout]  --> examples/vcp.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn ddc<D: Ddc>(mut ddc: D) where
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:243:32
[INFO] [stdout]     |
[INFO] [stdout] 243 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ddc`
[INFO] [stdout]   --> examples/edid.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn ddc<D: Edid>(mut ddc: D) -> Result<(), D::EdidError> where
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ddc`
[INFO] [stdout]   --> examples/caps.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn ddc<D: Ddc>(mut ddc: D) where
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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/lib.rs:238:34
[INFO] [stdout]     |
[INFO] [stdout] 238 |             Error::I2c(ref e) => error::Error::description(e),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[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/lib.rs:239:34
[INFO] [stdout]     |
[INFO] [stdout] 239 |             Error::Ddc(ref e) => error::Error::description(e),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]    --> src/lib.rs:245:34
[INFO] [stdout]     |
[INFO] [stdout] 245 |             Error::I2c(ref e) => error::Error::cause(e),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]    --> src/lib.rs:246:34
[INFO] [stdout]     |
[INFO] [stdout] 246 |             Error::Ddc(ref e) => error::Error::cause(e),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.22s
[INFO] running `Command { std: "docker" "inspect" "6bd64b030cd322c29c2b506a69e887fb009c6870a3ca8ab4197f93a267a27a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd64b030cd322c29c2b506a69e887fb009c6870a3ca8ab4197f93a267a27a93", kill_on_drop: false }`
[INFO] [stdout] 6bd64b030cd322c29c2b506a69e887fb009c6870a3ca8ab4197f93a267a27a93