[INFO] fetching crate umberbar 0.7.6...
[INFO] checking umberbar-0.7.6 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate umberbar 0.7.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate umberbar 0.7.6 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate umberbar 0.7.6
[INFO] finished tweaking crates.io crate umberbar 0.7.6
[INFO] tweaked toml for crates.io crate umberbar 0.7.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate umberbar 0.7.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7984189eeb62b713474a29ddc1e4e877cccdf4bb0e03b6b5ac3de48cec8bb56a
[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" "7984189eeb62b713474a29ddc1e4e877cccdf4bb0e03b6b5ac3de48cec8bb56a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7984189eeb62b713474a29ddc1e4e877cccdf4bb0e03b6b5ac3de48cec8bb56a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7984189eeb62b713474a29ddc1e4e877cccdf4bb0e03b6b5ac3de48cec8bb56a", kill_on_drop: false }`
[INFO] [stdout] 7984189eeb62b713474a29ddc1e4e877cccdf4bb0e03b6b5ac3de48cec8bb56a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd6cd00ac0347641795269bc9bb755cbb1408c6bb32ce9744d82bf51b686923c
[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" "dd6cd00ac0347641795269bc9bb755cbb1408c6bb32ce9744d82bf51b686923c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]    Compiling nom v6.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking systemstat v0.1.7
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking umberbar v0.7.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.05s
[INFO] running `Command { std: "docker" "inspect" "dd6cd00ac0347641795269bc9bb755cbb1408c6bb32ce9744d82bf51b686923c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd6cd00ac0347641795269bc9bb755cbb1408c6bb32ce9744d82bf51b686923c", kill_on_drop: false }`
[INFO] [stdout] dd6cd00ac0347641795269bc9bb755cbb1408c6bb32ce9744d82bf51b686923c