[INFO] fetching crate kekbit-core 0.2.2...
[INFO] checking kekbit-core-0.2.2 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate kekbit-core 0.2.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate kekbit-core 0.2.2 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kekbit-core 0.2.2
[INFO] finished tweaking crates.io crate kekbit-core 0.2.2
[INFO] tweaked toml for crates.io crate kekbit-core 0.2.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate kekbit-core 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded colored v1.9.2
[INFO] [stderr]   Downloaded assert_matches v1.3.0
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded simple_logger v1.5.0
[INFO] [stderr]   Downloaded memoffset v0.5.3
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.0
[INFO] [stderr]   Downloaded crossbeam v0.7.3
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.0
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.0
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded libc v0.2.66
[INFO] [stderr]   Downloaded kekbit-codecs v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 282094f233a539370f944e027df39ba24ccedd50db3bcc89b18cb03811d28792
[INFO] running `Command { std: "docker" "start" "-a" "282094f233a539370f944e027df39ba24ccedd50db3bcc89b18cb03811d28792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "282094f233a539370f944e027df39ba24ccedd50db3bcc89b18cb03811d28792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "282094f233a539370f944e027df39ba24ccedd50db3bcc89b18cb03811d28792", kill_on_drop: false }`
[INFO] [stdout] 282094f233a539370f944e027df39ba24ccedd50db3bcc89b18cb03811d28792
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8387f42c5a81b7949bea343c3b85bdf10c3433e035bfc217776e90cd13ba3ea1
[INFO] running `Command { std: "docker" "start" "-a" "8387f42c5a81b7949bea343c3b85bdf10c3433e035bfc217776e90cd13ba3ea1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking kekbit-codecs v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking colored v1.9.2
[INFO] [stderr]     Checking kekbit-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking simple_logger v1.5.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.27s
[INFO] running `Command { std: "docker" "inspect" "8387f42c5a81b7949bea343c3b85bdf10c3433e035bfc217776e90cd13ba3ea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8387f42c5a81b7949bea343c3b85bdf10c3433e035bfc217776e90cd13ba3ea1", kill_on_drop: false }`
[INFO] [stdout] 8387f42c5a81b7949bea343c3b85bdf10c3433e035bfc217776e90cd13ba3ea1