[INFO] fetching crate mmtf 0.1.1...
[INFO] checking mmtf-0.1.1 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate mmtf 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mmtf 0.1.1 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mmtf 0.1.1
[INFO] finished tweaking crates.io crate mmtf 0.1.1
[INFO] tweaked toml for crates.io crate mmtf 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67f73b43f77d3e4420f174ed26c53292d046afb4f84639811fc851c3c4b51857
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "67f73b43f77d3e4420f174ed26c53292d046afb4f84639811fc851c3c4b51857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67f73b43f77d3e4420f174ed26c53292d046afb4f84639811fc851c3c4b51857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67f73b43f77d3e4420f174ed26c53292d046afb4f84639811fc851c3c4b51857", kill_on_drop: false }`
[INFO] [stdout] 67f73b43f77d3e4420f174ed26c53292d046afb4f84639811fc851c3c4b51857
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 24cfa6d9fb37b5d5964a7af484cfc15fc887f8bd60b8faeb0555ee6eca4ff5eb
[INFO] running `Command { std: "docker" "start" "-a" "24cfa6d9fb37b5d5964a7af484cfc15fc887f8bd60b8faeb0555ee6eca4ff5eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking mmtf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Serialize`
[INFO] [stdout]  --> src/mmtf.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Serialize`
[INFO] [stdout]  --> src/mmtf.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^
[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 [unoptimized + debuginfo] target(s) in 24.65s
[INFO] running `Command { std: "docker" "inspect" "24cfa6d9fb37b5d5964a7af484cfc15fc887f8bd60b8faeb0555ee6eca4ff5eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24cfa6d9fb37b5d5964a7af484cfc15fc887f8bd60b8faeb0555ee6eca4ff5eb", kill_on_drop: false }`
[INFO] [stdout] 24cfa6d9fb37b5d5964a7af484cfc15fc887f8bd60b8faeb0555ee6eca4ff5eb