[INFO] crate kass 0.1.0 is already in cache
[INFO] checking kass-0.1.0 against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] extracting crate kass 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate kass 0.1.0 on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kass 0.1.0
[INFO] finished tweaking crates.io crate kass 0.1.0
[INFO] tweaked toml for crates.io crate kass 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate kass 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9693dc7847266a1540b37cab5b861992a8bf52f8ae98aceb67c32cf964e9fc3c
[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" "9693dc7847266a1540b37cab5b861992a8bf52f8ae98aceb67c32cf964e9fc3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9693dc7847266a1540b37cab5b861992a8bf52f8ae98aceb67c32cf964e9fc3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9693dc7847266a1540b37cab5b861992a8bf52f8ae98aceb67c32cf964e9fc3c", kill_on_drop: false }`
[INFO] [stdout] 9693dc7847266a1540b37cab5b861992a8bf52f8ae98aceb67c32cf964e9fc3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06b74c0759b9c6168a137efcc4d6d51dc085eefc678744331c2add342d76827b
[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" "06b74c0759b9c6168a137efcc4d6d51dc085eefc678744331c2add342d76827b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.9
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking smallvec v1.0.0
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking lz4-compress v0.1.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.2
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.3
[INFO] [stderr]     Checking r2d2 v0.8.7
[INFO] [stderr]     Checking cdrs v2.2.4
[INFO] [stderr]     Checking bigdecimal v0.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking colored_json v2.1.0
[INFO] [stderr]     Checking kass v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "06b74c0759b9c6168a137efcc4d6d51dc085eefc678744331c2add342d76827b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b74c0759b9c6168a137efcc4d6d51dc085eefc678744331c2add342d76827b", kill_on_drop: false }`
[INFO] [stdout] 06b74c0759b9c6168a137efcc4d6d51dc085eefc678744331c2add342d76827b