[INFO] fetching crate protocol 3.4.0...
[INFO] checking protocol-3.4.0 against master#8549802939cd01111c46e34a7b67cb1933977af9 for pr-132712
[INFO] extracting crate protocol 3.4.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate protocol 3.4.0 on toolchain 8549802939cd01111c46e34a7b67cb1933977af9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8549802939cd01111c46e34a7b67cb1933977af9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protocol 3.4.0
[INFO] removed 6 missing examples
[INFO] finished tweaking crates.io crate protocol 3.4.0
[INFO] tweaked toml for crates.io crate protocol 3.4.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate protocol 3.4.0 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" "+8549802939cd01111c46e34a7b67cb1933977af9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded uuid v0.8.2
[INFO] [stderr]   Downloaded protocol-derive v3.4.0
[INFO] [stderr]   Downloaded quote v1.0.21
[INFO] [stderr]   Downloaded unicode-ident v1.0.3
[INFO] [stderr]   Downloaded byteorder v1.4.3
[INFO] [stderr]   Downloaded crc32fast v1.3.2
[INFO] [stderr]   Downloaded cc v1.0.73
[INFO] [stderr]   Downloaded flate2 v1.0.24
[INFO] [stderr]   Downloaded backtrace v0.3.66
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded syn v1.0.99
[INFO] [stderr]   Downloaded miniz_oxide v0.5.4
[INFO] [stderr]   Downloaded num-traits v0.2.15
[INFO] [stderr]   Downloaded proc-macro2 v1.0.43
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded version_check v0.9.4
[INFO] [stderr]   Downloaded adler v1.0.2
[INFO] [stderr]   Downloaded object v0.29.0
[INFO] [stderr]   Downloaded libc v0.2.132
[INFO] [stderr]   Downloaded gimli v0.26.2
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+8549802939cd01111c46e34a7b67cb1933977af9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9aa70e85f3f081319c6401fde504a1051bf8448a5673608b6012653eb773fa6
[INFO] running `Command { std: "docker" "start" "-a" "c9aa70e85f3f081319c6401fde504a1051bf8448a5673608b6012653eb773fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9aa70e85f3f081319c6401fde504a1051bf8448a5673608b6012653eb773fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9aa70e85f3f081319c6401fde504a1051bf8448a5673608b6012653eb773fa6", kill_on_drop: false }`
[INFO] [stdout] c9aa70e85f3f081319c6401fde504a1051bf8448a5673608b6012653eb773fa6
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+8549802939cd01111c46e34a7b67cb1933977af9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2265b731fbac3e89d5efa94f21152f9793cef9973587a656c3d3f482e5498be4
[INFO] running `Command { std: "docker" "start" "-a" "2265b731fbac3e89d5efa94f21152f9793cef9973587a656c3d3f482e5498be4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling protocol-derive v3.4.0
[INFO] [stderr]     Checking protocol v3.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.57s
[INFO] running `Command { std: "docker" "inspect" "2265b731fbac3e89d5efa94f21152f9793cef9973587a656c3d3f482e5498be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2265b731fbac3e89d5efa94f21152f9793cef9973587a656c3d3f482e5498be4", kill_on_drop: false }`
[INFO] [stdout] 2265b731fbac3e89d5efa94f21152f9793cef9973587a656c3d3f482e5498be4