[INFO] fetching crate pwrs 1.1.0...
[INFO] testing pwrs-1.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate pwrs 1.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate pwrs 1.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pwrs 1.1.0
[INFO] finished tweaking crates.io crate pwrs 1.1.0
[INFO] tweaked toml for crates.io crate pwrs 1.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 3a993592f6186ad1a3f29fdbcbe498cc524301e2157effe6e51d76b1070102f5
[INFO] running `Command { std: "docker" "start" "-a" "3a993592f6186ad1a3f29fdbcbe498cc524301e2157effe6e51d76b1070102f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a993592f6186ad1a3f29fdbcbe498cc524301e2157effe6e51d76b1070102f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a993592f6186ad1a3f29fdbcbe498cc524301e2157effe6e51d76b1070102f5", kill_on_drop: false }`
[INFO] [stdout] 3a993592f6186ad1a3f29fdbcbe498cc524301e2157effe6e51d76b1070102f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9c33e2bb53345a963c2defa6e3fe856fce49ba2b021832c943cfdc4d2c0c0c4
[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" "f9c33e2bb53345a963c2defa6e3fe856fce49ba2b021832c943cfdc4d2c0c0c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling pwrs v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `sample` in crate `rand`
[INFO] [stdout]   --> src/main.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 53 |     rand::sample(&mut rng, words.iter(), cfg.number)
[INFO] [stdout]    |           ^^^^^^ not found in `rand`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 9  | use rand::seq::index::sample;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     try!(dict.read_to_string(&mut buf));
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut dict = try!(File::open(&cfg.filename));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:130:14
[INFO] [stdout]     |
[INFO] [stdout] 130 |     for _ in (0..cfg.count) {
[INFO] [stdout]     |              ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 130 -     for _ in (0..cfg.count) {
[INFO] [stdout] 130 +     for _ in 0..cfg.count {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::slice::<impl [T]>::connect`: renamed to join
[INFO] [stdout]    --> src/main.rs:136:25
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let out = inter.connect(" ");
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pwrs` due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f9c33e2bb53345a963c2defa6e3fe856fce49ba2b021832c943cfdc4d2c0c0c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9c33e2bb53345a963c2defa6e3fe856fce49ba2b021832c943cfdc4d2c0c0c4", kill_on_drop: false }`
[INFO] [stdout] f9c33e2bb53345a963c2defa6e3fe856fce49ba2b021832c943cfdc4d2c0c0c4