[INFO] fetching crate tokio-etcd-lock 0.0.1-alpha.11...
[INFO] checking tokio-etcd-lock-0.0.1-alpha.11 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate tokio-etcd-lock 0.0.1-alpha.11 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tokio-etcd-lock 0.0.1-alpha.11 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 tokio-etcd-lock 0.0.1-alpha.11
[INFO] finished tweaking crates.io crate tokio-etcd-lock 0.0.1-alpha.11
[INFO] tweaked toml for crates.io crate tokio-etcd-lock 0.0.1-alpha.11 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 130 packages
[INFO] [stderr]       Adding axum v0.6.20 (latest: v0.7.5)
[INFO] [stderr]       Adding axum-core v0.3.4 (latest: v0.4.3)
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding fixedbitset v0.4.2 (latest: v0.5.6)
[INFO] [stderr]       Adding h2 v0.3.26 (latest: v0.4.4)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[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 hyper-timeout v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding matchit v0.7.3 (latest: v0.8.0)
[INFO] [stderr]       Adding multimap v0.8.3 (latest: v0.10.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding sync_wrapper v0.1.2 (latest: v1.0.0)
[INFO] [stderr]       Adding tonic v0.10.2 (latest: v0.11.0)
[INFO] [stderr]       Adding tonic-build v0.10.2 (latest: v0.11.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding which v4.4.2 (latest: v6.0.1)
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost v0.12.3
[INFO] [stderr]   Downloaded prost-derive v0.12.3
[INFO] [stderr]   Downloaded prost-build v0.12.3
[INFO] [stderr]   Downloaded matchit v0.7.3
[INFO] [stderr]   Downloaded axum v0.6.20
[INFO] [stderr]   Downloaded prost-types v0.12.3
[INFO] [stderr]   Downloaded tonic v0.10.2
[INFO] [stderr]   Downloaded tonic-build v0.10.2
[INFO] [stderr]   Downloaded etcd-client v0.12.4
[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] 0846a43b7e2c0db782d8f0bb66c4b4646851c9e68944942274952d40b5047912
[INFO] running `Command { std: "docker" "start" "-a" "0846a43b7e2c0db782d8f0bb66c4b4646851c9e68944942274952d40b5047912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0846a43b7e2c0db782d8f0bb66c4b4646851c9e68944942274952d40b5047912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0846a43b7e2c0db782d8f0bb66c4b4646851c9e68944942274952d40b5047912", kill_on_drop: false }`
[INFO] [stdout] 0846a43b7e2c0db782d8f0bb66c4b4646851c9e68944942274952d40b5047912
[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] 6913abc920e3f3a909fcf367ae2fc6fc06faf90915606224e9d5a56a8d1cf227
[INFO] running `Command { std: "docker" "start" "-a" "6913abc920e3f3a909fcf367ae2fc6fc06faf90915606224e9d5a56a8d1cf227", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling prettyplease v0.2.17
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling fastrand v2.0.2
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling petgraph v0.6.4
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking matchit v0.7.3
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling prost-derive v0.12.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]    Compiling prost v0.12.3
[INFO] [stderr]    Compiling prost-types v0.12.3
[INFO] [stderr]    Compiling prost-build v0.12.3
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]    Compiling tonic-build v0.10.2
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]    Compiling etcd-client v0.12.4
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking tonic v0.10.2
[INFO] [stderr]     Checking tokio-etcd-lock v0.0.1-alpha.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `random` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:259:16
[INFO] [stdout]     |
[INFO] [stdout] 258 |     use super::*;
[INFO] [stdout]     |         -------- the item `random` is already imported here
[INFO] [stdout] 259 |     use rand::{random, Rng};
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 258 |     use super::*;
[INFO] [stdout]     |         -------- the item `Arc` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 264 |             Arc,
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.26s
[INFO] running `Command { std: "docker" "inspect" "6913abc920e3f3a909fcf367ae2fc6fc06faf90915606224e9d5a56a8d1cf227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6913abc920e3f3a909fcf367ae2fc6fc06faf90915606224e9d5a56a8d1cf227", kill_on_drop: false }`
[INFO] [stdout] 6913abc920e3f3a909fcf367ae2fc6fc06faf90915606224e9d5a56a8d1cf227