[INFO] fetching crate rpn-c 0.2.1...
[INFO] checking rpn-c-0.2.1 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate rpn-c 0.2.1 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate rpn-c 0.2.1 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-36/source/.cargo/config.toml
[INFO] started tweaking crates.io crate rpn-c 0.2.1
[INFO] finished tweaking crates.io crate rpn-c 0.2.1
[INFO] tweaked toml for crates.io crate rpn-c 0.2.1 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate crates.io crate rpn-c 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ba817fbc8bc51e02461679334a5650603a070e7a36cf91f9ee69079960b30ba
[INFO] running `Command { std: "docker" "start" "-a" "9ba817fbc8bc51e02461679334a5650603a070e7a36cf91f9ee69079960b30ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ba817fbc8bc51e02461679334a5650603a070e7a36cf91f9ee69079960b30ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba817fbc8bc51e02461679334a5650603a070e7a36cf91f9ee69079960b30ba", kill_on_drop: false }`
[INFO] [stdout] 9ba817fbc8bc51e02461679334a5650603a070e7a36cf91f9ee69079960b30ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37dea929b3bec8732b4a1ecae00447c14ece9602ccbc54035a98796c2c86d578
[INFO] running `Command { std: "docker" "start" "-a" "37dea929b3bec8732b4a1ecae00447c14ece9602ccbc54035a98796c2c86d578", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling beef v0.5.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]     Checking ieee754 v0.2.6
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling backtrace v0.3.57
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling rustc-cfg v0.4.0
[INFO] [stderr]    Compiling ramp v0.6.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking rpn-c v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.58s
[INFO] running `Command { std: "docker" "inspect" "37dea929b3bec8732b4a1ecae00447c14ece9602ccbc54035a98796c2c86d578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37dea929b3bec8732b4a1ecae00447c14ece9602ccbc54035a98796c2c86d578", kill_on_drop: false }`
[INFO] [stdout] 37dea929b3bec8732b4a1ecae00447c14ece9602ccbc54035a98796c2c86d578