[INFO] fetching crate wral 0.2.0...
[INFO] checking wral-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate wral 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate wral 0.2.0 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 wral 0.2.0
[INFO] finished tweaking crates.io crate wral 0.2.0
[INFO] tweaked toml for crates.io crate wral 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate wral 0.2.0 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.53
[INFO] [stderr]   Downloaded derive_arbitrary v0.4.7
[INFO] [stderr]   Downloaded arbitrary v0.4.7
[INFO] [stderr]   Downloaded mkit-derive v0.3.0
[INFO] [stderr]   Downloaded syn-mid v0.5.1
[INFO] [stderr]   Downloaded xorfilter-rs v0.3.0
[INFO] [stderr]   Downloaded mkit v0.4.0
[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] b9f692d2b9eb7db4fc3e56109104bf84075c2b7e5a626b08da8f08386c044b0b
[INFO] running `Command { std: "docker" "start" "-a" "b9f692d2b9eb7db4fc3e56109104bf84075c2b7e5a626b08da8f08386c044b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9f692d2b9eb7db4fc3e56109104bf84075c2b7e5a626b08da8f08386c044b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9f692d2b9eb7db4fc3e56109104bf84075c2b7e5a626b08da8f08386c044b0b", kill_on_drop: false }`
[INFO] [stdout] b9f692d2b9eb7db4fc3e56109104bf84075c2b7e5a626b08da8f08386c044b0b
[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] d016a178965bf558de81f9a399bca7cbbbc2cb08ed46fa6142192ded459d8cd4
[INFO] running `Command { std: "docker" "start" "-a" "d016a178965bf558de81f9a399bca7cbbbc2cb08ed46fa6142192ded459d8cd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking xorfilter-rs v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling syn-mid v0.5.1
[INFO] [stderr]    Compiling derive_arbitrary v0.4.7
[INFO] [stderr]     Checking arbitrary v0.4.7
[INFO] [stderr]    Compiling mkit-derive v0.3.0
[INFO] [stderr]     Checking mkit v0.4.0
[INFO] [stderr]     Checking wral v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `mkit` is imported redundantly
[INFO] [stdout]  --> src/batch.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self,
[INFO] [stdout]   |     ^^^^ the item `mkit` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mkit` is imported redundantly
[INFO] [stdout]  --> src/journal.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self,
[INFO] [stdout]   |     ^^^^ the item `mkit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mkit` is imported redundantly
[INFO] [stdout]  --> src/wral.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use mkit::{self, thread};
[INFO] [stdout]   |            ^^^^ the item `mkit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Unstructured` is imported redundantly
[INFO] [stdout]  --> src/batch_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use arbitrary::Unstructured;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 | use super::*;
[INFO] [stdout]   |     -------- the item `Unstructured` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mkit` is imported redundantly
[INFO] [stdout]  --> src/entry_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self,
[INFO] [stdout]   |     ^^^^ the item `mkit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mkit` is imported redundantly
[INFO] [stdout]  --> src/journal.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self,
[INFO] [stdout]   |     ^^^^ the item `mkit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `state` is imported redundantly
[INFO] [stdout]  --> src/journal_test.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::*;
[INFO] [stdout]   |     -------- the item `state` is already imported here
[INFO] [stdout] 5 | use crate::state;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `mkit` is imported redundantly
[INFO] [stdout]  --> src/wral.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use mkit::{self, thread};
[INFO] [stdout]   |            ^^^^ the item `mkit` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Unstructured` is imported redundantly
[INFO] [stdout]  --> src/wral_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use arbitrary::Unstructured;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 4 | use super::*;
[INFO] [stdout]   |     -------- the item `Unstructured` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `Command { std: "docker" "inspect" "d016a178965bf558de81f9a399bca7cbbbc2cb08ed46fa6142192ded459d8cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d016a178965bf558de81f9a399bca7cbbbc2cb08ed46fa6142192ded459d8cd4", kill_on_drop: false }`
[INFO] [stdout] d016a178965bf558de81f9a399bca7cbbbc2cb08ed46fa6142192ded459d8cd4