[INFO] fetching crate tracers-libelf-sys 0.1.0...
[INFO] testing tracers-libelf-sys-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tracers-libelf-sys 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tracers-libelf-sys 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracers-libelf-sys 0.1.0
[INFO] finished tweaking crates.io crate tracers-libelf-sys 0.1.0
[INFO] tweaked toml for crates.io crate tracers-libelf-sys 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 9b267d65f70cffe1e1bfcc4044cb184b9b9eb7a05e181f17f36f7347e3698350
[INFO] running `Command { std: "docker" "start" "-a" "9b267d65f70cffe1e1bfcc4044cb184b9b9eb7a05e181f17f36f7347e3698350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b267d65f70cffe1e1bfcc4044cb184b9b9eb7a05e181f17f36f7347e3698350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b267d65f70cffe1e1bfcc4044cb184b9b9eb7a05e181f17f36f7347e3698350", kill_on_drop: false }`
[INFO] [stdout] 9b267d65f70cffe1e1bfcc4044cb184b9b9eb7a05e181f17f36f7347e3698350
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", 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] e78cff043edc5c64b9a9efc5d0c1bc063c6252b0f177b8979c48882f89b79551
[INFO] running `Command { std: "docker" "start" "-a" "e78cff043edc5c64b9a9efc5d0c1bc063c6252b0f177b8979c48882f89b79551", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling tracers-libelf-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `Command { std: "docker" "inspect" "e78cff043edc5c64b9a9efc5d0c1bc063c6252b0f177b8979c48882f89b79551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78cff043edc5c64b9a9efc5d0c1bc063c6252b0f177b8979c48882f89b79551", kill_on_drop: false }`
[INFO] [stdout] e78cff043edc5c64b9a9efc5d0c1bc063c6252b0f177b8979c48882f89b79551
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 316f3e43356e2356b63195991c31d2b5d5035ad25abd75fd36ef3d3acae190f3
[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" "316f3e43356e2356b63195991c31d2b5d5035ad25abd75fd36ef3d3acae190f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracers-libelf-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "316f3e43356e2356b63195991c31d2b5d5035ad25abd75fd36ef3d3acae190f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "316f3e43356e2356b63195991c31d2b5d5035ad25abd75fd36ef3d3acae190f3", kill_on_drop: false }`
[INFO] [stdout] 316f3e43356e2356b63195991c31d2b5d5035ad25abd75fd36ef3d3acae190f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", 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] c939431d94060306d5dc47e04cf459ff870077a4aca4a5057b6335396e0b813b
[INFO] running `Command { std: "docker" "start" "-a" "c939431d94060306d5dc47e04cf459ff870077a4aca4a5057b6335396e0b813b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tracers_libelf_sys-3baf5d3d8477fb33)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracers-libelf-sys
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c939431d94060306d5dc47e04cf459ff870077a4aca4a5057b6335396e0b813b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c939431d94060306d5dc47e04cf459ff870077a4aca4a5057b6335396e0b813b", kill_on_drop: false }`
[INFO] [stdout] c939431d94060306d5dc47e04cf459ff870077a4aca4a5057b6335396e0b813b