[INFO] fetching crate kstd 0.0.4...
[INFO] checking kstd-0.0.4 against master#0f6e1ae67854c3c44726e8376144c16b465fe7c6 for pr-129392
[INFO] extracting crate kstd 0.0.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate kstd 0.0.4 on toolchain 0f6e1ae67854c3c44726e8376144c16b465fe7c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate kstd 0.0.4
[INFO] finished tweaking crates.io crate kstd 0.0.4
[INFO] tweaked toml for crates.io crate kstd 0.0.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] [stderr]       Adding convert_case v0.4.0 (latest: v0.6.0)
[INFO] [stderr]       Adding derive_more v0.99.18 (latest: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11bcb9ce1ef21058caf99a6362690f38d93a8eedd6b61fd7bc7164cf85a6f0f3
[INFO] running `Command { std: "docker" "start" "-a" "11bcb9ce1ef21058caf99a6362690f38d93a8eedd6b61fd7bc7164cf85a6f0f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11bcb9ce1ef21058caf99a6362690f38d93a8eedd6b61fd7bc7164cf85a6f0f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11bcb9ce1ef21058caf99a6362690f38d93a8eedd6b61fd7bc7164cf85a6f0f3", kill_on_drop: false }`
[INFO] [stdout] 11bcb9ce1ef21058caf99a6362690f38d93a8eedd6b61fd7bc7164cf85a6f0f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0a2eb5c032ed007c77736d4c62be1bbe715afe6c6578a255fcaaf913c709196
[INFO] running `Command { std: "docker" "start" "-a" "b0a2eb5c032ed007c77736d4c62be1bbe715afe6c6578a255fcaaf913c709196", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]     Checking kstd v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::io::read::*`
[INFO] [stdout]   --> src/io/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use crate::io::read::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::io::read::*`
[INFO] [stdout]   --> src/io/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use crate::io::read::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `error_in_core` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(error_in_core)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `error_in_core` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(error_in_core)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.65s
[INFO] running `Command { std: "docker" "inspect" "b0a2eb5c032ed007c77736d4c62be1bbe715afe6c6578a255fcaaf913c709196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a2eb5c032ed007c77736d4c62be1bbe715afe6c6578a255fcaaf913c709196", kill_on_drop: false }`
[INFO] [stdout] b0a2eb5c032ed007c77736d4c62be1bbe715afe6c6578a255fcaaf913c709196