[INFO] cloning repository https://github.com/truelossless/crocolang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/truelossless/crocolang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftruelossless%2Fcrocolang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftruelossless%2Fcrocolang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f9ae2c0e9536538c3ec18f08cede66ce4bbec5e
[INFO] checking truelossless/crocolang against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftruelossless%2Fcrocolang" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/truelossless/crocolang on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/truelossless/crocolang
[INFO] finished tweaking git repo https://github.com/truelossless/crocolang
[INFO] tweaked toml for git repo https://github.com/truelossless/crocolang written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/truelossless/crocolang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 063b9a103cf8d3db73b41278763338723460d203f3d70b5bf854c5e029249025
[INFO] running `Command { std: "docker" "start" "-a" "063b9a103cf8d3db73b41278763338723460d203f3d70b5bf854c5e029249025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "063b9a103cf8d3db73b41278763338723460d203f3d70b5bf854c5e029249025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "063b9a103cf8d3db73b41278763338723460d203f3d70b5bf854c5e029249025", kill_on_drop: false }`
[INFO] [stdout] 063b9a103cf8d3db73b41278763338723460d203f3d70b5bf854c5e029249025
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07ab19fbef2e4d6fe951e9dba0bacb0c2583254ce132da5b58b3f5457ad7b9ba
[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" "07ab19fbef2e4d6fe951e9dba0bacb0c2583254ce132da5b58b3f5457ad7b9ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=master#67981a09)
[INFO] [stderr]     Checking dyn-clone v1.0.2
[INFO] [stderr]     Checking chunked_transfer v1.2.0
[INFO] [stderr]    Compiling croco_lang v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking qstring v0.7.2
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling llvm-sys v100.2.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking ureq v1.4.0
[INFO] [stderr]    Compiling gumdrop_derive v0.8.0
[INFO] [stderr]    Compiling inkwell_internals v0.2.0 (https://github.com/TheDan64/inkwell?branch=master#67981a09)
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.0
[INFO] [stderr]     Checking dyn-clonable v0.9.0
[INFO] [stderr]     Checking gumdrop v0.8.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "07ab19fbef2e4d6fe951e9dba0bacb0c2583254ce132da5b58b3f5457ad7b9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07ab19fbef2e4d6fe951e9dba0bacb0c2583254ce132da5b58b3f5457ad7b9ba", kill_on_drop: false }`
[INFO] [stdout] 07ab19fbef2e4d6fe951e9dba0bacb0c2583254ce132da5b58b3f5457ad7b9ba