[INFO] cloning repository https://github.com/femnad/leth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/femnad/leth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffemnad%2Fleth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffemnad%2Fleth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb9e14c3be9aae74e05b8c1ad73877b8e9238fc1
[INFO] checking femnad/leth against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffemnad%2Fleth" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/femnad/leth on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/femnad/leth
[INFO] finished tweaking git repo https://github.com/femnad/leth
[INFO] tweaked toml for git repo https://github.com/femnad/leth written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/femnad/leth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 0a475b78f512c80f8a114a209b66bd016f86e3e6cfec752f128532c24e16df29
[INFO] running `Command { std: "docker" "start" "-a" "0a475b78f512c80f8a114a209b66bd016f86e3e6cfec752f128532c24e16df29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a475b78f512c80f8a114a209b66bd016f86e3e6cfec752f128532c24e16df29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a475b78f512c80f8a114a209b66bd016f86e3e6cfec752f128532c24e16df29", kill_on_drop: false }`
[INFO] [stdout] 0a475b78f512c80f8a114a209b66bd016f86e3e6cfec752f128532c24e16df29
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 363f6d72c058e2d0c347223f7dc8052cbfb94c7106199aa37263c2269b7ff2bb
[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" "363f6d72c058e2d0c347223f7dc8052cbfb94c7106199aa37263c2269b7ff2bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking fuzzy-matcher v0.3.3
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking tuikit v0.2.9
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking skim v0.7.0
[INFO] [stderr]     Checking leth v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.19s
[INFO] running `Command { std: "docker" "inspect" "363f6d72c058e2d0c347223f7dc8052cbfb94c7106199aa37263c2269b7ff2bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363f6d72c058e2d0c347223f7dc8052cbfb94c7106199aa37263c2269b7ff2bb", kill_on_drop: false }`
[INFO] [stdout] 363f6d72c058e2d0c347223f7dc8052cbfb94c7106199aa37263c2269b7ff2bb