[INFO] fetching crate backtrace 0.3.55...
[INFO] checking backtrace-0.3.55 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] extracting crate backtrace 0.3.55 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate backtrace 0.3.55 on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backtrace 0.3.55
[INFO] removed 0 missing examples
[INFO] removed 1 missing tests
[INFO] finished tweaking crates.io crate backtrace 0.3.55
[INFO] tweaked toml for crates.io crate backtrace 0.3.55 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate backtrace 0.3.55 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpp_demangle v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b734d6054442e79e06b3ae20098f0b97ad2777ef02356db4b99192697deb9fe
[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" "6b734d6054442e79e06b3ae20098f0b97ad2777ef02356db4b99192697deb9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b734d6054442e79e06b3ae20098f0b97ad2777ef02356db4b99192697deb9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b734d6054442e79e06b3ae20098f0b97ad2777ef02356db4b99192697deb9fe", kill_on_drop: false }`
[INFO] [stdout] 6b734d6054442e79e06b3ae20098f0b97ad2777ef02356db4b99192697deb9fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26e442ec8406b8acf3ba7b90114a7361b189fb7d9707f0f88e6c74fd22877bda
[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" "26e442ec8406b8acf3ba7b90114a7361b189fb7d9707f0f88e6c74fd22877bda", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking libloading v0.6.5
[INFO] [stderr]     Checking backtrace v0.3.55 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "26e442ec8406b8acf3ba7b90114a7361b189fb7d9707f0f88e6c74fd22877bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26e442ec8406b8acf3ba7b90114a7361b189fb7d9707f0f88e6c74fd22877bda", kill_on_drop: false }`
[INFO] [stdout] 26e442ec8406b8acf3ba7b90114a7361b189fb7d9707f0f88e6c74fd22877bda