[INFO] fetching crate webdriver 0.49.0...
[INFO] checking webdriver-0.49.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate webdriver 0.49.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate webdriver 0.49.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webdriver 0.49.0
[INFO] finished tweaking crates.io crate webdriver 0.49.0
[INFO] tweaked toml for crates.io crate webdriver 0.49.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 107 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding cookie v0.16.2 (latest: v0.18.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding h2 v0.3.26 (latest: v0.4.4)
[INFO] [stderr]       Adding headers v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding headers-core v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding http-body v0.4.6 (latest: v1.0.0)
[INFO] [stderr]       Adding hyper v0.14.28 (latest: v1.2.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded warp v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39aef64c1e286fb5375e0b246c00a789699ff53f1ad23e95d8735cb19ad92cf7
[INFO] running `Command { std: "docker" "start" "-a" "39aef64c1e286fb5375e0b246c00a789699ff53f1ad23e95d8735cb19ad92cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39aef64c1e286fb5375e0b246c00a789699ff53f1ad23e95d8735cb19ad92cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39aef64c1e286fb5375e0b246c00a789699ff53f1ad23e95d8735cb19ad92cf7", kill_on_drop: false }`
[INFO] [stdout] 39aef64c1e286fb5375e0b246c00a789699ff53f1ad23e95d8735cb19ad92cf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 049b3ca7f56f65a423b5b3794c3994e3a53f48e05bbd551a69d8f7944b46170d
[INFO] running `Command { std: "docker" "start" "-a" "049b3ca7f56f65a423b5b3794c3994e3a53f48e05bbd551a69d8f7944b46170d", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking headers v0.3.9
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking warp v0.3.7
[INFO] [stderr]     Checking webdriver v0.49.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/command.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/error.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `http` is imported redundantly
[INFO] [stdout]   --> src/server.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | use http::{self, Method, StatusCode};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate http;
[INFO] [stdout]    | ------------------ the item `http` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `warp` is imported redundantly
[INFO] [stdout]   --> src/server.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | use warp::{self, Buf, Filter, Rejection};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | extern crate warp;
[INFO] [stdout]    | ------------------ the item `warp` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/actions.rs:534:22
[INFO] [stdout]     |
[INFO] [stdout] 534 |     use serde_json::{self, json, Value};
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout] 15  | extern crate serde_json;
[INFO] [stdout]     | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Value` is imported redundantly
[INFO] [stdout]    --> src/actions.rs:534:34
[INFO] [stdout]     |
[INFO] [stdout] 532 |     use super::*;
[INFO] [stdout]     |         -------- the item `Value` is already imported here
[INFO] [stdout] 533 |     use crate::test::{assert_de, assert_ser_de};
[INFO] [stdout] 534 |     use serde_json::{self, json, Value};
[INFO] [stdout]     |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/capabilities.rs:662:22
[INFO] [stdout]     |
[INFO] [stdout] 662 |     use serde_json::{self, json};
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout] 15  | extern crate serde_json;
[INFO] [stdout]     | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SpecNewSessionParameters` is imported redundantly
[INFO] [stdout]    --> src/command.rs:908:9
[INFO] [stdout]     |
[INFO] [stdout] 907 |     use super::*;
[INFO] [stdout]     |         -------- the item `SpecNewSessionParameters` is already imported here
[INFO] [stdout] 908 |     use crate::capabilities::SpecNewSessionParameters;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/command.rs:911:22
[INFO] [stdout]     |
[INFO] [stdout] 907 |     use super::*;
[INFO] [stdout]     |         -------- the item `serde_json` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 911 |     use serde_json::{self, json};
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/common.rs:216:22
[INFO] [stdout]     |
[INFO] [stdout] 216 |     use serde_json::{self, json};
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout] 15  | extern crate serde_json;
[INFO] [stdout]     | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/error.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `http` is imported redundantly
[INFO] [stdout]   --> src/server.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | use http::{self, Method, StatusCode};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | extern crate http;
[INFO] [stdout]    | ------------------ the item `http` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `warp` is imported redundantly
[INFO] [stdout]   --> src/server.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | use warp::{self, Buf, Filter, Rejection};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | extern crate warp;
[INFO] [stdout]    | ------------------ the item `warp` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.39s
[INFO] running `Command { std: "docker" "inspect" "049b3ca7f56f65a423b5b3794c3994e3a53f48e05bbd551a69d8f7944b46170d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "049b3ca7f56f65a423b5b3794c3994e3a53f48e05bbd551a69d8f7944b46170d", kill_on_drop: false }`
[INFO] [stdout] 049b3ca7f56f65a423b5b3794c3994e3a53f48e05bbd551a69d8f7944b46170d