[INFO] fetching crate mine_sweeper 0.2.2...
[INFO] checking mine_sweeper-0.2.2 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate mine_sweeper 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mine_sweeper 0.2.2 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mine_sweeper 0.2.2
[INFO] finished tweaking crates.io crate mine_sweeper 0.2.2
[INFO] tweaked toml for crates.io crate mine_sweeper 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enumset_derive v0.3.2
[INFO] [stderr]   Downloaded enumset v0.3.19
[INFO] [stderr]   Downloaded cursive v0.11.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f935eb7e14e320458b3f98f821d9c2e632f9be312dd6f91bf2c17a8241897337
[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" "f935eb7e14e320458b3f98f821d9c2e632f9be312dd6f91bf2c17a8241897337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f935eb7e14e320458b3f98f821d9c2e632f9be312dd6f91bf2c17a8241897337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f935eb7e14e320458b3f98f821d9c2e632f9be312dd6f91bf2c17a8241897337", kill_on_drop: false }`
[INFO] [stdout] f935eb7e14e320458b3f98f821d9c2e632f9be312dd6f91bf2c17a8241897337
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c14b8ad8772cfd0bd3bb365197104ee4ea12e061005e2be21c9082c7999e0d8
[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" "3c14b8ad8772cfd0bd3bb365197104ee4ea12e061005e2be21c9082c7999e0d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking array-macro v1.0.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking hashbrown v0.2.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking enum-map-internals v0.1.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling enumset_derive v0.3.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]     Checking enum-map v0.5.0
[INFO] [stderr]     Checking enumset v0.3.19
[INFO] [stderr]     Checking cursive v0.11.2
[INFO] [stderr]     Checking mine_sweeper v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.68s
[INFO] running `Command { std: "docker" "inspect" "3c14b8ad8772cfd0bd3bb365197104ee4ea12e061005e2be21c9082c7999e0d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c14b8ad8772cfd0bd3bb365197104ee4ea12e061005e2be21c9082c7999e0d8", kill_on_drop: false }`
[INFO] [stdout] 3c14b8ad8772cfd0bd3bb365197104ee4ea12e061005e2be21c9082c7999e0d8