[INFO] fetching crate carbon-dump 1.2.0...
[INFO] checking carbon-dump-1.2.0 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate carbon-dump 1.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate carbon-dump 1.2.0 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate carbon-dump 1.2.0
[INFO] finished tweaking crates.io crate carbon-dump 1.2.0
[INFO] tweaked toml for crates.io crate carbon-dump 1.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79183db052c75ea02dc24d2bae8af5f9b07ee9a559f3bae4a055ecf2e1fdcbd7
[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" "79183db052c75ea02dc24d2bae8af5f9b07ee9a559f3bae4a055ecf2e1fdcbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79183db052c75ea02dc24d2bae8af5f9b07ee9a559f3bae4a055ecf2e1fdcbd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79183db052c75ea02dc24d2bae8af5f9b07ee9a559f3bae4a055ecf2e1fdcbd7", kill_on_drop: false }`
[INFO] [stdout] 79183db052c75ea02dc24d2bae8af5f9b07ee9a559f3bae4a055ecf2e1fdcbd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f370ade0decf2466258e841816b249acca2e2087c7c80a698f7c89ba458d8623
[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" "f370ade0decf2466258e841816b249acca2e2087c7c80a698f7c89ba458d8623", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling clang-sys v1.0.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking plist v0.4.2
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling onig_sys v69.5.1
[INFO] [stderr]     Checking onig v5.0.0
[INFO] [stderr]     Checking syntect v3.3.0
[INFO] [stderr]     Checking carbon-dump v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 34s
[INFO] running `Command { std: "docker" "inspect" "f370ade0decf2466258e841816b249acca2e2087c7c80a698f7c89ba458d8623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f370ade0decf2466258e841816b249acca2e2087c7c80a698f7c89ba458d8623", kill_on_drop: false }`
[INFO] [stdout] f370ade0decf2466258e841816b249acca2e2087c7c80a698f7c89ba458d8623