[INFO] fetching crate string_generator 0.1.0...
[INFO] checking string_generator-0.1.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate string_generator 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate string_generator 0.1.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string_generator 0.1.0
[INFO] finished tweaking crates.io crate string_generator 0.1.0
[INFO] tweaked toml for crates.io crate string_generator 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] d39411fb0e6a2489d7dfd591a8ec3afb249051c1c5aa2661df21a107cb6cb0c3
[INFO] running `Command { std: "docker" "start" "-a" "d39411fb0e6a2489d7dfd591a8ec3afb249051c1c5aa2661df21a107cb6cb0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d39411fb0e6a2489d7dfd591a8ec3afb249051c1c5aa2661df21a107cb6cb0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d39411fb0e6a2489d7dfd591a8ec3afb249051c1c5aa2661df21a107cb6cb0c3", kill_on_drop: false }`
[INFO] [stdout] d39411fb0e6a2489d7dfd591a8ec3afb249051c1c5aa2661df21a107cb6cb0c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] 6eb5bf4e553fb17bc701fdd8d7322bc6c4570c8d8863451a15c01ddbfa49dc6f
[INFO] running `Command { std: "docker" "start" "-a" "6eb5bf4e553fb17bc701fdd8d7322bc6c4570c8d8863451a15c01ddbfa49dc6f", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking string_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{sample, Rng};
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
[INFO] [stdout]   --> src/lib.rs:51:30
[INFO] [stdout]    |
[INFO] [stdout] 51 |             if let Some(u) = sample(rng, catagory.iter(), 1).iter().nth(0) {
[INFO] [stdout]    |                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{sample, Rng};
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'rand::sample': renamed to seq::sample_iter
[INFO] [stdout]   --> src/lib.rs:51:30
[INFO] [stdout]    |
[INFO] [stdout] 51 |             if let Some(u) = sample(rng, catagory.iter(), 1).iter().nth(0) {
[INFO] [stdout]    |                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "6eb5bf4e553fb17bc701fdd8d7322bc6c4570c8d8863451a15c01ddbfa49dc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eb5bf4e553fb17bc701fdd8d7322bc6c4570c8d8863451a15c01ddbfa49dc6f", kill_on_drop: false }`
[INFO] [stdout] 6eb5bf4e553fb17bc701fdd8d7322bc6c4570c8d8863451a15c01ddbfa49dc6f