[INFO] fetching crate essp 0.1.0...
[INFO] checking essp-0.1.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate essp 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate essp 0.1.0 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] started tweaking crates.io crate essp 0.1.0
[INFO] finished tweaking crates.io crate essp 0.1.0
[INFO] tweaked toml for crates.io crate essp 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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" "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] 13a20c1bdd5676f602f5a9530ebcf9a16cdbe7fa7546cb190fcb6dbdd257c682
[INFO] running `Command { std: "docker" "start" "-a" "13a20c1bdd5676f602f5a9530ebcf9a16cdbe7fa7546cb190fcb6dbdd257c682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13a20c1bdd5676f602f5a9530ebcf9a16cdbe7fa7546cb190fcb6dbdd257c682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a20c1bdd5676f602f5a9530ebcf9a16cdbe7fa7546cb190fcb6dbdd257c682", kill_on_drop: false }`
[INFO] [stdout] 13a20c1bdd5676f602f5a9530ebcf9a16cdbe7fa7546cb190fcb6dbdd257c682
[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" "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] 6772f68ca18f9a33e272c326e88941e77b3668d5593cf8865c032d44a55b3adb
[INFO] running `Command { std: "docker" "start" "-a" "6772f68ca18f9a33e272c326e88941e77b3668d5593cf8865c032d44a55b3adb", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking essp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/device.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub client: Box<ESSPClient + 'static>,
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ESSPClient + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/device.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub client: Box<ESSPClient + 'static>,
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ESSPClient + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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/client.rs:40:98
[INFO] [stdout]    |
[INFO] [stdout] 40 |             &ClientError::IOError(ref e) => ClientError::IOError(std::io::Error::new(e.kind(), e.description())),
[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/client.rs:41:105
[INFO] [stdout]    |
[INFO] [stdout] 41 |             &ClientError::SerialError(ref e) => ClientError::SerialError(serial::Error::new(e.kind(), e.description())),
[INFO] [stdout]    |                                                                                                         ^^^^^^^^^^^
[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/client.rs:40:98
[INFO] [stdout]    |
[INFO] [stdout] 40 |             &ClientError::IOError(ref e) => ClientError::IOError(std::io::Error::new(e.kind(), e.description())),
[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/client.rs:41:105
[INFO] [stdout]    |
[INFO] [stdout] 41 |             &ClientError::SerialError(ref e) => ClientError::SerialError(serial::Error::new(e.kind(), e.description())),
[INFO] [stdout]    |                                                                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `changed`
[INFO] [stdout]    --> src/client.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     changed: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `changed`
[INFO] [stdout]    --> src/client.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     changed: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.52s
[INFO] running `Command { std: "docker" "inspect" "6772f68ca18f9a33e272c326e88941e77b3668d5593cf8865c032d44a55b3adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6772f68ca18f9a33e272c326e88941e77b3668d5593cf8865c032d44a55b3adb", kill_on_drop: false }`
[INFO] [stdout] 6772f68ca18f9a33e272c326e88941e77b3668d5593cf8865c032d44a55b3adb