[INFO] fetching crate libtcc 0.2.0...
[INFO] checking libtcc-0.2.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate libtcc 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libtcc 0.2.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libtcc 0.2.0
[INFO] finished tweaking crates.io crate libtcc 0.2.0
[INFO] tweaked toml for crates.io crate libtcc 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate libtcc 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26e903d807cf41e22021558141c46f8c569b3162a786e31dc8cddf46a8110e18
[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" "26e903d807cf41e22021558141c46f8c569b3162a786e31dc8cddf46a8110e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26e903d807cf41e22021558141c46f8c569b3162a786e31dc8cddf46a8110e18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26e903d807cf41e22021558141c46f8c569b3162a786e31dc8cddf46a8110e18", kill_on_drop: false }`
[INFO] [stdout] 26e903d807cf41e22021558141c46f8c569b3162a786e31dc8cddf46a8110e18
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8713d1f4556a48d84977d1ddfdcceb9f30b259aac40fcef4b53335d70aba1d1e
[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" "8713d1f4556a48d84977d1ddfdcceb9f30b259aac40fcef4b53335d70aba1d1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling libtcc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `libtcc v0.2.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libtcc-5a4ca4b88feeaed8/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   OPT_LEVEL = Some("0")
[INFO] [stderr]   TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CC = None
[INFO] [stderr]   CC = None
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   DEBUG = Some("true")
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some("fxsr,sse,sse2")
[INFO] [stderr]   running "cc" "src/libtcc_test.c" "-o" "/opt/rustwide/target/debug/build/libtcc-60fca0c3f8bfa2ba/out/tcc-tmp/a.out" "-Isrc/tcc-0.9.27" "-ltcc" "-ldl" "-lrt" "-lm" "-lpthread"
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   /usr/bin/ld: cannot find -ltcc
[INFO] [stderr]   collect2: error: ld returned 1 exit status
[INFO] [stderr]   ERROR: Can not find libtcc.a in your host:
[INFO] [stderr]   	Tcc should be installed in host when your build target is same as host, 
[INFO] [stderr]   	because libtcc need some small but necessary runtime libaray such as libtcc1.a
[INFO] [stderr]   	and some header files, which should be found in [prefix]/lib/tcc
[INFO] running `Command { std: "docker" "inspect" "8713d1f4556a48d84977d1ddfdcceb9f30b259aac40fcef4b53335d70aba1d1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8713d1f4556a48d84977d1ddfdcceb9f30b259aac40fcef4b53335d70aba1d1e", kill_on_drop: false }`
[INFO] [stdout] 8713d1f4556a48d84977d1ddfdcceb9f30b259aac40fcef4b53335d70aba1d1e