[INFO] fetching crate du-dust 0.5.4...
[INFO] checking du-dust-0.5.4 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate du-dust 0.5.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate du-dust 0.5.4 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate du-dust 0.5.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate du-dust 0.5.4
[INFO] tweaked toml for crates.io crate du-dust 0.5.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate du-dust 0.5.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates-tree v1.0.1
[INFO] [stderr]   Downloaded wait-timeout v0.2.0
[INFO] [stderr]   Downloaded predicates v1.0.6
[INFO] [stderr]   Downloaded predicates-core v1.0.1
[INFO] [stderr]   Downloaded getrandom v0.2.1
[INFO] [stderr]   Downloaded ignore v0.4.17
[INFO] [stderr]   Downloaded assert_cmd v1.0.2
[INFO] [stderr]   Downloaded thousands v0.2.0
[INFO] [stderr]   Downloaded lscolors v0.7.1
[INFO] [stderr]   Downloaded stfu8 v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffa1f3fd46abe267213d830e5b96d39f30dd9dad5bee3210dc4fee2f41c92e2a
[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" "ffa1f3fd46abe267213d830e5b96d39f30dd9dad5bee3210dc4fee2f41c92e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffa1f3fd46abe267213d830e5b96d39f30dd9dad5bee3210dc4fee2f41c92e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffa1f3fd46abe267213d830e5b96d39f30dd9dad5bee3210dc4fee2f41c92e2a", kill_on_drop: false }`
[INFO] [stdout] ffa1f3fd46abe267213d830e5b96d39f30dd9dad5bee3210dc4fee2f41c92e2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] 76fe0997811cefa00ca6a83742ec89f40fb822651ea896bf7463a65a859cc921
[INFO] running `Command { std: "docker" "start" "-a" "76fe0997811cefa00ca6a83742ec89f40fb822651ea896bf7463a65a859cc921", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]     Checking predicates-core v1.0.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking thousands v0.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking terminal_size v0.1.15
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking predicates-tree v1.0.1
[INFO] [stderr]     Checking predicates v1.0.6
[INFO] [stderr]     Checking lscolors v0.7.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking assert_cmd v1.0.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.2
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking stfu8 v0.2.4
[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking du-dust v0.5.4 (/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 12.39s
[INFO] running `Command { std: "docker" "inspect" "76fe0997811cefa00ca6a83742ec89f40fb822651ea896bf7463a65a859cc921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76fe0997811cefa00ca6a83742ec89f40fb822651ea896bf7463a65a859cc921", kill_on_drop: false }`
[INFO] [stdout] 76fe0997811cefa00ca6a83742ec89f40fb822651ea896bf7463a65a859cc921