[INFO] fetching crate selenium_webdriver 0.1.7...
[INFO] checking selenium_webdriver-0.1.7 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate selenium_webdriver 0.1.7 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate selenium_webdriver 0.1.7 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate selenium_webdriver 0.1.7
[INFO] finished tweaking crates.io crate selenium_webdriver 0.1.7
[INFO] tweaked toml for crates.io crate selenium_webdriver 0.1.7 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7360a98939c193ffd831f457ccba51ebac2428c54cecbfdbc464c07c36e9e190
[INFO] running `Command { std: "docker" "start" "-a" "7360a98939c193ffd831f457ccba51ebac2428c54cecbfdbc464c07c36e9e190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7360a98939c193ffd831f457ccba51ebac2428c54cecbfdbc464c07c36e9e190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7360a98939c193ffd831f457ccba51ebac2428c54cecbfdbc464c07c36e9e190", kill_on_drop: false }`
[INFO] [stdout] 7360a98939c193ffd831f457ccba51ebac2428c54cecbfdbc464c07c36e9e190
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd59ba3caf5743e6ef7d6afc8fcbe13562e843786002d0dc817d95e25d7bdc5b
[INFO] running `Command { std: "docker" "start" "-a" "dd59ba3caf5743e6ef7d6afc8fcbe13562e843786002d0dc817d95e25d7bdc5b", kill_on_drop: false }`
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking selenium_webdriver v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/element.rs:46:40
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let element_ur = element_ur.clone();
[INFO] [stdout]    |                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/element.rs:46:40
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let element_ur = element_ur.clone();
[INFO] [stdout]    |                                        ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "dd59ba3caf5743e6ef7d6afc8fcbe13562e843786002d0dc817d95e25d7bdc5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd59ba3caf5743e6ef7d6afc8fcbe13562e843786002d0dc817d95e25d7bdc5b", kill_on_drop: false }`
[INFO] [stdout] dd59ba3caf5743e6ef7d6afc8fcbe13562e843786002d0dc817d95e25d7bdc5b
[INFO] checking selenium_webdriver-0.1.7 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate selenium_webdriver 0.1.7 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate selenium_webdriver 0.1.7 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate selenium_webdriver 0.1.7
[INFO] finished tweaking crates.io crate selenium_webdriver 0.1.7
[INFO] tweaked toml for crates.io crate selenium_webdriver 0.1.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 060a1ec4b24ab51905fcd036db2fcb916e7b67d78c345ac451ace7581775f62c
[INFO] running `Command { std: "docker" "start" "-a" "060a1ec4b24ab51905fcd036db2fcb916e7b67d78c345ac451ace7581775f62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "060a1ec4b24ab51905fcd036db2fcb916e7b67d78c345ac451ace7581775f62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "060a1ec4b24ab51905fcd036db2fcb916e7b67d78c345ac451ace7581775f62c", kill_on_drop: false }`
[INFO] [stdout] 060a1ec4b24ab51905fcd036db2fcb916e7b67d78c345ac451ace7581775f62c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db0f7c299c7286fba4abc08bb8b954e57d5a1d0e417a12b0cccf7a5ae9240f46
[INFO] running `Command { std: "docker" "start" "-a" "db0f7c299c7286fba4abc08bb8b954e57d5a1d0e417a12b0cccf7a5ae9240f46", kill_on_drop: false }`
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking selenium_webdriver v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/reqs.rs:115:24
[INFO] [stdout]     |
[INFO] [stdout] 115 |     std::thread::spawn(move || {
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 115 |     std::thread::spawn(move || -> /* Type */ {
[INFO] [stdout]     |                                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/reqs.rs:154:24
[INFO] [stdout]     |
[INFO] [stdout] 154 |     std::thread::spawn(move || {
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 154 |     std::thread::spawn(move || -> /* Type */ {
[INFO] [stdout]     |                                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/reqs.rs:115:24
[INFO] [stdout]     |
[INFO] [stdout] 115 |     std::thread::spawn(move || {
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 115 |     std::thread::spawn(move || -> /* Type */ {
[INFO] [stdout]     |                                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/reqs.rs:154:24
[INFO] [stdout]     |
[INFO] [stdout] 154 |     std::thread::spawn(move || {
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 154 |     std::thread::spawn(move || -> /* Type */ {
[INFO] [stdout]     |                                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `selenium_webdriver` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `selenium_webdriver` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "db0f7c299c7286fba4abc08bb8b954e57d5a1d0e417a12b0cccf7a5ae9240f46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db0f7c299c7286fba4abc08bb8b954e57d5a1d0e417a12b0cccf7a5ae9240f46", kill_on_drop: false }`
[INFO] [stdout] db0f7c299c7286fba4abc08bb8b954e57d5a1d0e417a12b0cccf7a5ae9240f46