[INFO] fetching crate dasn1-core 0.1.1...
[INFO] checking dasn1-core-0.1.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate dasn1-core 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dasn1-core 0.1.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dasn1-core 0.1.1
[INFO] finished tweaking crates.io crate dasn1-core 0.1.1
[INFO] tweaked toml for crates.io crate dasn1-core 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", 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] e78eff516c1c6b884d300543795d169916f4a5ca8145a50d3f0b6395bb76f85e
[INFO] running `Command { std: "docker" "start" "-a" "e78eff516c1c6b884d300543795d169916f4a5ca8145a50d3f0b6395bb76f85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e78eff516c1c6b884d300543795d169916f4a5ca8145a50d3f0b6395bb76f85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78eff516c1c6b884d300543795d169916f4a5ca8145a50d3f0b6395bb76f85e", kill_on_drop: false }`
[INFO] [stdout] e78eff516c1c6b884d300543795d169916f4a5ca8145a50d3f0b6395bb76f85e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1deeb00f896e943de51ee44b0b5a623b84342ab7d516c5c84446e107c93053f2
[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" "1deeb00f896e943de51ee44b0b5a623b84342ab7d516c5c84446e107c93053f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking dasn1-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SeqAccess`
[INFO] [stdout]  --> src/types/enumerated.rs:3:68
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize, Serializer, de::{SeqAccess, Visitor}};
[INFO] [stdout]   |                                                                    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeqAccess`
[INFO] [stdout]  --> src/types/enumerated.rs:3:68
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize, Serializer, de::{SeqAccess, Visitor}};
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.17s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1deeb00f896e943de51ee44b0b5a623b84342ab7d516c5c84446e107c93053f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1deeb00f896e943de51ee44b0b5a623b84342ab7d516c5c84446e107c93053f2", kill_on_drop: false }`
[INFO] [stdout] 1deeb00f896e943de51ee44b0b5a623b84342ab7d516c5c84446e107c93053f2