[INFO] crate emojisum 0.0.1 is already in cache
[INFO] checking emojisum-0.0.1 against try#5fae8f15a4dcfce640ee800a4d495673524b0a4d for pr-71814
[INFO] extracting crate emojisum 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate emojisum 0.0.1 on toolchain 5fae8f15a4dcfce640ee800a4d495673524b0a4d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5fae8f15a4dcfce640ee800a4d495673524b0a4d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate emojisum 0.0.1
[INFO] finished tweaking crates.io crate emojisum 0.0.1
[INFO] tweaked toml for crates.io crate emojisum 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5fae8f15a4dcfce640ee800a4d495673524b0a4d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5fae8f15a4dcfce640ee800a4d495673524b0a4d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+5fae8f15a4dcfce640ee800a4d495673524b0a4d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f76cdc6b3d90612a6c6d077124bcb8f321bca33b2ee6457a17b227ceaacc171f
[INFO] running `"docker" "start" "-a" "f76cdc6b3d90612a6c6d077124bcb8f321bca33b2ee6457a17b227ceaacc171f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling syn v1.0.21
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking emojisum v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]   --> src/lib.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::error::Error;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]   --> src/lib.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use std::io::Read;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]   --> src/lib.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::error::Error;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]   --> src/lib.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | use std::io::Read;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.05s
[INFO] running `"docker" "inspect" "f76cdc6b3d90612a6c6d077124bcb8f321bca33b2ee6457a17b227ceaacc171f"`
[INFO] running `"docker" "rm" "-f" "f76cdc6b3d90612a6c6d077124bcb8f321bca33b2ee6457a17b227ceaacc171f"`
[INFO] [stdout] f76cdc6b3d90612a6c6d077124bcb8f321bca33b2ee6457a17b227ceaacc171f