[INFO] cloning repository https://github.com/ThatsGobbles/niente
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ThatsGobbles/niente" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Fniente", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Fniente'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a634d323630e178852b6a91fc56d8d7fdb1480e
[INFO] checking ThatsGobbles/niente against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThatsGobbles%2Fniente" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ThatsGobbles/niente 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 git repo https://github.com/ThatsGobbles/niente
[INFO] finished tweaking git repo https://github.com/ThatsGobbles/niente
[INFO] tweaked toml for git repo https://github.com/ThatsGobbles/niente written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ThatsGobbles/niente already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum v0.15.0
[INFO] [stderr]   Downloaded circular-queue v0.2.1
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c9483cd40e635f4f0f17df123e728f04db9790b2cfc8b13fd3b0d8f49373982
[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" "3c9483cd40e635f4f0f17df123e728f04db9790b2cfc8b13fd3b0d8f49373982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c9483cd40e635f4f0f17df123e728f04db9790b2cfc8b13fd3b0d8f49373982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c9483cd40e635f4f0f17df123e728f04db9790b2cfc8b13fd3b0d8f49373982", kill_on_drop: false }`
[INFO] [stdout] 3c9483cd40e635f4f0f17df123e728f04db9790b2cfc8b13fd3b0d8f49373982
[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: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] c0d7d6cb55ae566d4ce86f7b7bbba3f5abfdec2676b0a54f0f7a651dacb5d28a
[INFO] running `Command { std: "docker" "start" "-a" "c0d7d6cb55ae566d4ce86f7b7bbba3f5abfdec2676b0a54f0f7a651dacb5d28a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]     Checking strum v0.15.0
[INFO] [stderr]    Compiling circular-queue v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking regulus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/gating.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::wave::WaveKind`
[INFO] [stdout]   --> src/gating.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     use crate::wave::WaveKind;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::wave::WaveGen`
[INFO] [stdout]   --> src/gating.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     use crate::wave::WaveGen;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.67s
[INFO] running `Command { std: "docker" "inspect" "c0d7d6cb55ae566d4ce86f7b7bbba3f5abfdec2676b0a54f0f7a651dacb5d28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0d7d6cb55ae566d4ce86f7b7bbba3f5abfdec2676b0a54f0f7a651dacb5d28a", kill_on_drop: false }`
[INFO] [stdout] c0d7d6cb55ae566d4ce86f7b7bbba3f5abfdec2676b0a54f0f7a651dacb5d28a