[INFO] fetching crate wal-rs 1.0.2...
[INFO] checking wal-rs-1.0.2 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate wal-rs 1.0.2 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate wal-rs 1.0.2 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wal-rs 1.0.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate wal-rs 1.0.2
[INFO] tweaked toml for crates.io crate wal-rs 1.0.2 written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f22e8843ac5fb2ce6a11d87cbdc0a2c32764549e0d8d67a18ab8fd8a00071d30
[INFO] running `Command { std: "docker" "start" "-a" "f22e8843ac5fb2ce6a11d87cbdc0a2c32764549e0d8d67a18ab8fd8a00071d30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f22e8843ac5fb2ce6a11d87cbdc0a2c32764549e0d8d67a18ab8fd8a00071d30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22e8843ac5fb2ce6a11d87cbdc0a2c32764549e0d8d67a18ab8fd8a00071d30", kill_on_drop: false }`
[INFO] [stdout] f22e8843ac5fb2ce6a11d87cbdc0a2c32764549e0d8d67a18ab8fd8a00071d30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1dad34a352d9cb006f97a13527cd7391eb5922ce8b3fd8471ce3147d982421e
[INFO] running `Command { std: "docker" "start" "-a" "e1dad34a352d9cb006f97a13527cd7391eb5922ce8b3fd8471ce3147d982421e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking wal-rs v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/wal/mod.rs:94:52
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn try_allocate(&mut self, n: usize) -> Result<(usize)> {
[INFO] [stdout]    |                                                    ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 94 -     fn try_allocate(&mut self, n: usize) -> Result<(usize)> {
[INFO] [stdout] 94 +     fn try_allocate(&mut self, n: usize) -> Result<usize> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/wal/mod.rs:94:52
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn try_allocate(&mut self, n: usize) -> Result<(usize)> {
[INFO] [stdout]    |                                                    ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 94 -     fn try_allocate(&mut self, n: usize) -> Result<(usize)> {
[INFO] [stdout] 94 +     fn try_allocate(&mut self, n: usize) -> Result<usize> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "e1dad34a352d9cb006f97a13527cd7391eb5922ce8b3fd8471ce3147d982421e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1dad34a352d9cb006f97a13527cd7391eb5922ce8b3fd8471ce3147d982421e", kill_on_drop: false }`
[INFO] [stdout] e1dad34a352d9cb006f97a13527cd7391eb5922ce8b3fd8471ce3147d982421e