[INFO] fetching crate btree_network 0.2.3...
[INFO] checking btree_network-0.2.3 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate btree_network 0.2.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate btree_network 0.2.3 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btree_network 0.2.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate btree_network 0.2.3
[INFO] tweaked toml for crates.io crate btree_network 0.2.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ab77c8f8eb8b53102284ab4dcf61f19be40609a1df734b08d510fc336f098f1
[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" "7ab77c8f8eb8b53102284ab4dcf61f19be40609a1df734b08d510fc336f098f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ab77c8f8eb8b53102284ab4dcf61f19be40609a1df734b08d510fc336f098f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ab77c8f8eb8b53102284ab4dcf61f19be40609a1df734b08d510fc336f098f1", kill_on_drop: false }`
[INFO] [stdout] 7ab77c8f8eb8b53102284ab4dcf61f19be40609a1df734b08d510fc336f098f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f196bf0a064df7df321f18899ef0437cf405ccd7869eec8414f688b18792c95c
[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" "f196bf0a064df7df321f18899ef0437cf405ccd7869eec8414f688b18792c95c", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking btree_network v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam-utils v0.8.2
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking crossbeam-epoch v0.9.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking tinytemplate v1.2.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.55s
[INFO] running `Command { std: "docker" "inspect" "f196bf0a064df7df321f18899ef0437cf405ccd7869eec8414f688b18792c95c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f196bf0a064df7df321f18899ef0437cf405ccd7869eec8414f688b18792c95c", kill_on_drop: false }`
[INFO] [stdout] f196bf0a064df7df321f18899ef0437cf405ccd7869eec8414f688b18792c95c