[INFO] fetching crate iw 0.0.1...
[INFO] checking iw-0.0.1 against beta for pr-78714
[INFO] extracting crate iw 0.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate iw 0.0.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iw 0.0.1
[INFO] finished tweaking crates.io crate iw 0.0.1
[INFO] tweaked toml for crates.io crate iw 0.0.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate iw 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 883560e2acfd62eed7234b9c8baf7f7e0cb117ddd3cc867b0ddd18e3571c9e74
[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" "883560e2acfd62eed7234b9c8baf7f7e0cb117ddd3cc867b0ddd18e3571c9e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "883560e2acfd62eed7234b9c8baf7f7e0cb117ddd3cc867b0ddd18e3571c9e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883560e2acfd62eed7234b9c8baf7f7e0cb117ddd3cc867b0ddd18e3571c9e74", kill_on_drop: false }`
[INFO] [stdout] 883560e2acfd62eed7234b9c8baf7f7e0cb117ddd3cc867b0ddd18e3571c9e74
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18f2c6ef36dd0bea3577bc91b32481e733d0a842bfdf550d037a5ccb51aea290
[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" "18f2c6ef36dd0bea3577bc91b32481e733d0a842bfdf550d037a5ccb51aea290", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling which v3.1.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]     Checking thiserror v1.0.9
[INFO] [stderr]    Compiling iw v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `OsStringExt`
[INFO] [stdout]  --> src/lib.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::unix::ffi::{OsStrExt, OsStringExt};
[INFO] [stdout]   |                                    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OsStringExt`
[INFO] [stdout]  --> src/lib.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::os::unix::ffi::{OsStrExt, OsStringExt};
[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 42.09s
[INFO] running `Command { std: "docker" "inspect" "18f2c6ef36dd0bea3577bc91b32481e733d0a842bfdf550d037a5ccb51aea290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18f2c6ef36dd0bea3577bc91b32481e733d0a842bfdf550d037a5ccb51aea290", kill_on_drop: false }`
[INFO] [stdout] 18f2c6ef36dd0bea3577bc91b32481e733d0a842bfdf550d037a5ccb51aea290