[INFO] fetching crate unrar 0.4.4...
[INFO] checking unrar-0.4.4 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate unrar 0.4.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate unrar 0.4.4 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unrar 0.4.4
[INFO] finished tweaking crates.io crate unrar 0.4.4
[INFO] tweaked toml for crates.io crate unrar 0.4.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate unrar 0.4.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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] 5d1eb3b18305e9f8ce0b315db10aed33565136d57ee98cbf22376cc73f7eb252
[INFO] running `Command { std: "docker" "start" "-a" "5d1eb3b18305e9f8ce0b315db10aed33565136d57ee98cbf22376cc73f7eb252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d1eb3b18305e9f8ce0b315db10aed33565136d57ee98cbf22376cc73f7eb252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d1eb3b18305e9f8ce0b315db10aed33565136d57ee98cbf22376cc73f7eb252", kill_on_drop: false }`
[INFO] [stdout] 5d1eb3b18305e9f8ce0b315db10aed33565136d57ee98cbf22376cc73f7eb252
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a79731952ba443093803af673cc7fd83b86a33a4239d7fd120a4d54f53a7409c
[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" "a79731952ba443093803af673cc7fd83b86a33a4239d7fd120a4d54f53a7409c", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking num-complex v0.1.38
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking num-bigint v0.1.39
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]    Compiling unrar_sys v0.2.1
[INFO] [stderr]     Checking num-rational v0.1.38
[INFO] [stderr]     Checking num v0.1.39
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking unrar v0.4.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `comments`
[INFO] [stdout]   --> src/archive.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     comments: Option<&'a mut Vec<u8>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `comments`
[INFO] [stdout]   --> src/archive.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     comments: Option<&'a mut Vec<u8>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude`
[INFO] [stdout]  --> tests/multipart.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::prelude::*;
[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: unnecessary trailing semicolon
[INFO] [stdout]   --> examples/lister.rs:57:6
[INFO] [stdout]    |
[INFO] [stdout] 57 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` 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 30.46s
[INFO] running `Command { std: "docker" "inspect" "a79731952ba443093803af673cc7fd83b86a33a4239d7fd120a4d54f53a7409c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79731952ba443093803af673cc7fd83b86a33a4239d7fd120a4d54f53a7409c", kill_on_drop: false }`
[INFO] [stdout] a79731952ba443093803af673cc7fd83b86a33a4239d7fd120a4d54f53a7409c