[INFO] fetching crate juri 0.4.0-alpha.3...
[INFO] checking juri-0.4.0-alpha.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate juri 0.4.0-alpha.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate juri 0.4.0-alpha.3 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 juri 0.4.0-alpha.3
[INFO] finished tweaking crates.io crate juri 0.4.0-alpha.3
[INFO] tweaked toml for crates.io crate juri 0.4.0-alpha.3 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]      Locking 126 packages
[INFO] [stderr]       Adding async-channel v1.9.0 (latest: v2.2.0)
[INFO] [stderr]       Adding async-io v1.13.0 (latest: v2.3.2)
[INFO] [stderr]       Adding async-lock v2.8.0 (latest: v3.3.0)
[INFO] [stderr]       Adding base64 v0.20.0 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.0)
[INFO] [stderr]       Adding event-listener v4.0.3 (latest: v5.3.0)
[INFO] [stderr]       Adding event-listener-strategy v0.4.0 (latest: v0.5.1)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding futures-lite v1.13.0 (latest: v2.3.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding gloo-timers v0.2.6 (latest: v0.3.0)
[INFO] [stderr]       Adding io-lifetimes v1.0.11 (latest: v2.0.3)
[INFO] [stderr]       Adding linux-raw-sys v0.3.8 (latest: v0.6.4)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding polling v2.8.0 (latest: v3.6.0)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[INFO] [stderr]       Adding rustix v0.37.27 (latest: v0.38.32)
[INFO] [stderr]       Adding socket2 v0.4.10 (latest: v0.5.6)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[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] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[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 base64 v0.20.0
[INFO] [stderr]   Downloaded juri-macros v0.2.0-alpha.2
[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] a20f86829925d76c256d07ee6f3c85024f103f3eca1091fa1dba3c6556fe6b80
[INFO] running `Command { std: "docker" "start" "-a" "a20f86829925d76c256d07ee6f3c85024f103f3eca1091fa1dba3c6556fe6b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a20f86829925d76c256d07ee6f3c85024f103f3eca1091fa1dba3c6556fe6b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20f86829925d76c256d07ee6f3c85024f103f3eca1091fa1dba3c6556fe6b80", kill_on_drop: false }`
[INFO] [stdout] a20f86829925d76c256d07ee6f3c85024f103f3eca1091fa1dba3c6556fe6b80
[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] 67beccf4e4ffd8d26ab77c75cafb12c6067ec9d7ac90f1ab9699002cfc7d3f6b
[INFO] running `Command { std: "docker" "start" "-a" "67beccf4e4ffd8d26ab77c75cafb12c6067ec9d7ac90f1ab9699002cfc7d3f6b", kill_on_drop: false }`
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking value-bag v1.8.1
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.3.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.1
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking base64 v0.20.0
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]     Checking async-executor v1.9.1
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling juri-macros v0.2.0-alpha.2
[INFO] [stderr]     Checking polling v3.6.0
[INFO] [stderr]     Checking async-io v2.3.2
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking juri v0.4.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/byte/read/line.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{iter::Iterator, vec};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/byte/read/line.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{iter::Iterator, vec};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.96s
[INFO] running `Command { std: "docker" "inspect" "67beccf4e4ffd8d26ab77c75cafb12c6067ec9d7ac90f1ab9699002cfc7d3f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67beccf4e4ffd8d26ab77c75cafb12c6067ec9d7ac90f1ab9699002cfc7d3f6b", kill_on_drop: false }`
[INFO] [stdout] 67beccf4e4ffd8d26ab77c75cafb12c6067ec9d7ac90f1ab9699002cfc7d3f6b