[INFO] fetching crate du-dust 0.5.3...
[INFO] checking du-dust-0.5.3 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] extracting crate du-dust 0.5.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate du-dust 0.5.3 on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate du-dust 0.5.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate du-dust 0.5.3
[INFO] tweaked toml for crates.io crate du-dust 0.5.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate du-dust 0.5.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.3
[INFO] [stderr]   Downloaded lscolors v0.7.1
[INFO] [stderr]   Downloaded thousands v0.2.0
[INFO] [stderr]   Downloaded globset v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f4420e7189c413e2f5f0aab7aa05d283358259e33a034bad2f6fa3109a458e7
[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" "1f4420e7189c413e2f5f0aab7aa05d283358259e33a034bad2f6fa3109a458e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f4420e7189c413e2f5f0aab7aa05d283358259e33a034bad2f6fa3109a458e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f4420e7189c413e2f5f0aab7aa05d283358259e33a034bad2f6fa3109a458e7", kill_on_drop: false }`
[INFO] [stdout] 1f4420e7189c413e2f5f0aab7aa05d283358259e33a034bad2f6fa3109a458e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26ae07bdc36d66d73d8410864d35c10d719c1b58bcda820f4d9229c89bc17c48
[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" "26ae07bdc36d66d73d8410864d35c10d719c1b58bcda820f4d9229c89bc17c48", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking thousands v0.2.0
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking lscolors v0.7.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking du-dust v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::panic`
[INFO] [stdout]  --> tests/tests_symlinks.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::panic;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::panic`
[INFO] [stdout]  --> tests/tests_symlinks.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::panic;
[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 15.06s
[INFO] running `Command { std: "docker" "inspect" "26ae07bdc36d66d73d8410864d35c10d719c1b58bcda820f4d9229c89bc17c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26ae07bdc36d66d73d8410864d35c10d719c1b58bcda820f4d9229c89bc17c48", kill_on_drop: false }`
[INFO] [stdout] 26ae07bdc36d66d73d8410864d35c10d719c1b58bcda820f4d9229c89bc17c48