[INFO] fetching crate backtrace 0.3.50...
[INFO] checking backtrace-0.3.50 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate backtrace 0.3.50 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate backtrace 0.3.50 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backtrace 0.3.50
[INFO] removed 0 missing examples
[INFO] removed 1 missing tests
[INFO] finished tweaking crates.io crate backtrace 0.3.50
[INFO] tweaked toml for crates.io crate backtrace 0.3.50 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate backtrace 0.3.50 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compiler_builtins v0.1.32
[INFO] [stderr]   Downloaded cpp_demangle v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d57676f0b5d01cdb7b32b38eb4402be30596d75df0157c2ffd1c49a4ebcb6a43
[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" "d57676f0b5d01cdb7b32b38eb4402be30596d75df0157c2ffd1c49a4ebcb6a43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d57676f0b5d01cdb7b32b38eb4402be30596d75df0157c2ffd1c49a4ebcb6a43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d57676f0b5d01cdb7b32b38eb4402be30596d75df0157c2ffd1c49a4ebcb6a43", kill_on_drop: false }`
[INFO] [stdout] d57676f0b5d01cdb7b32b38eb4402be30596d75df0157c2ffd1c49a4ebcb6a43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed9712d8b5ef579b9bca8cbf956e27fe1da639a9b2b17035f6ea0bd3d7eda4a4
[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" "ed9712d8b5ef579b9bca8cbf956e27fe1da639a9b2b17035f6ea0bd3d7eda4a4", 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] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking adler v0.2.2
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.72s
[INFO] running `Command { std: "docker" "inspect" "ed9712d8b5ef579b9bca8cbf956e27fe1da639a9b2b17035f6ea0bd3d7eda4a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9712d8b5ef579b9bca8cbf956e27fe1da639a9b2b17035f6ea0bd3d7eda4a4", kill_on_drop: false }`
[INFO] [stdout] ed9712d8b5ef579b9bca8cbf956e27fe1da639a9b2b17035f6ea0bd3d7eda4a4