[INFO] crate trait_exerci 0.3.0 is already in cache
[INFO] checking trait_exerci-0.3.0 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate trait_exerci 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate trait_exerci 0.3.0 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trait_exerci 0.3.0
[INFO] finished tweaking crates.io crate trait_exerci 0.3.0
[INFO] tweaked toml for crates.io crate trait_exerci 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate trait_exerci 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "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] a2e36460ebfd961bb2d00747a5968b54882755d7e84378741c528f4ae0dff0e2
[INFO] running `Command { std: "docker" "start" "-a" "a2e36460ebfd961bb2d00747a5968b54882755d7e84378741c528f4ae0dff0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2e36460ebfd961bb2d00747a5968b54882755d7e84378741c528f4ae0dff0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e36460ebfd961bb2d00747a5968b54882755d7e84378741c528f4ae0dff0e2", kill_on_drop: false }`
[INFO] [stdout] a2e36460ebfd961bb2d00747a5968b54882755d7e84378741c528f4ae0dff0e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3397addfc6d2fad2171424bd5f10f41a3abd000c3dbda05b149f4dfd4fc65caf
[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" "3397addfc6d2fad2171424bd5f10f41a3abd000c3dbda05b149f4dfd4fc65caf", kill_on_drop: false }`
[INFO] [stderr]     Checking trait_exerci v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "3397addfc6d2fad2171424bd5f10f41a3abd000c3dbda05b149f4dfd4fc65caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3397addfc6d2fad2171424bd5f10f41a3abd000c3dbda05b149f4dfd4fc65caf", kill_on_drop: false }`
[INFO] [stdout] 3397addfc6d2fad2171424bd5f10f41a3abd000c3dbda05b149f4dfd4fc65caf