[INFO] fetching crate redox_users 0.4.0...
[INFO] checking redox_users-0.4.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate redox_users 0.4.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate redox_users 0.4.0 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 redox_users 0.4.0
[INFO] finished tweaking crates.io crate redox_users 0.4.0
[INFO] tweaked toml for crates.io crate redox_users 0.4.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] ccaf66150da4aeb4561dfb9873d72ae0559adafbaa70dfc283faaaf37257ef09
[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" "ccaf66150da4aeb4561dfb9873d72ae0559adafbaa70dfc283faaaf37257ef09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccaf66150da4aeb4561dfb9873d72ae0559adafbaa70dfc283faaaf37257ef09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccaf66150da4aeb4561dfb9873d72ae0559adafbaa70dfc283faaaf37257ef09", kill_on_drop: false }`
[INFO] [stdout] ccaf66150da4aeb4561dfb9873d72ae0559adafbaa70dfc283faaaf37257ef09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 72c81401c5cd759406101bcb1d3e08a6f2252510f78d99ab977cc99164e9a56d
[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" "72c81401c5cd759406101bcb1d3e08a6f2252510f78d99ab977cc99164e9a56d", kill_on_drop: false }`
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking redox_syscall v0.2.4
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]     Checking rust-argon2 v0.8.3
[INFO] [stderr]     Checking redox_users v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `write_locked_file`
[INFO] [stdout]     --> src/lib.rs:1118:8
[INFO] [stdout]      |
[INFO] [stdout] 1118 |     fn write_locked_file(file: impl AsRef<Path>, cntnt: impl AsRef<[u8]>) -> Result<()> {
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "72c81401c5cd759406101bcb1d3e08a6f2252510f78d99ab977cc99164e9a56d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72c81401c5cd759406101bcb1d3e08a6f2252510f78d99ab977cc99164e9a56d", kill_on_drop: false }`
[INFO] [stdout] 72c81401c5cd759406101bcb1d3e08a6f2252510f78d99ab977cc99164e9a56d