[INFO] fetching crate convenient-skiplist 1.0.3...
[INFO] checking convenient-skiplist-1.0.3 against beta for pr-78714
[INFO] extracting crate convenient-skiplist 1.0.3 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate convenient-skiplist 1.0.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate convenient-skiplist 1.0.3
[INFO] finished tweaking crates.io crate convenient-skiplist 1.0.3
[INFO] tweaked toml for crates.io crate convenient-skiplist 1.0.3 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate convenient-skiplist 1.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3534e1301f89252688f5a00b862246d11aefbcc7c1aa5ba1e27a60b7ec4974a
[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" "b3534e1301f89252688f5a00b862246d11aefbcc7c1aa5ba1e27a60b7ec4974a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3534e1301f89252688f5a00b862246d11aefbcc7c1aa5ba1e27a60b7ec4974a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3534e1301f89252688f5a00b862246d11aefbcc7c1aa5ba1e27a60b7ec4974a", kill_on_drop: false }`
[INFO] [stdout] b3534e1301f89252688f5a00b862246d11aefbcc7c1aa5ba1e27a60b7ec4974a
[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=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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84dd4e42ce9f0a4aadadc63d9e1d691b49bd58da384c6656462664a036b82f71
[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" "84dd4e42ce9f0a4aadadc63d9e1d691b49bd58da384c6656462664a036b82f71", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking clap v2.33.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking convenient-skiplist v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling checkers-macros v0.5.1
[INFO] [stderr]     Checking checkers v0.5.6
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.41s
[INFO] running `Command { std: "docker" "inspect" "84dd4e42ce9f0a4aadadc63d9e1d691b49bd58da384c6656462664a036b82f71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84dd4e42ce9f0a4aadadc63d9e1d691b49bd58da384c6656462664a036b82f71", kill_on_drop: false }`
[INFO] [stdout] 84dd4e42ce9f0a4aadadc63d9e1d691b49bd58da384c6656462664a036b82f71