[INFO] fetching crate random_nice_emoji 0.4.0...
[INFO] testing random_nice_emoji-0.4.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate random_nice_emoji 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate random_nice_emoji 0.4.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate random_nice_emoji 0.4.0
[INFO] finished tweaking crates.io crate random_nice_emoji 0.4.0
[INFO] tweaked toml for crates.io crate random_nice_emoji 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pick-one v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c1363819ee0d0ba07cbc0317e8617d0f2f650bc2619e4b78a39b210e9841207
[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" "5c1363819ee0d0ba07cbc0317e8617d0f2f650bc2619e4b78a39b210e9841207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c1363819ee0d0ba07cbc0317e8617d0f2f650bc2619e4b78a39b210e9841207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c1363819ee0d0ba07cbc0317e8617d0f2f650bc2619e4b78a39b210e9841207", kill_on_drop: false }`
[INFO] [stdout] 5c1363819ee0d0ba07cbc0317e8617d0f2f650bc2619e4b78a39b210e9841207
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", 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] a21cd6bcaa3c779e3b1b54cf6918dfe1d8cad789d66d7bd40f62459fb4f4f8da
[INFO] running `Command { std: "docker" "start" "-a" "a21cd6bcaa3c779e3b1b54cf6918dfe1d8cad789d66d7bd40f62459fb4f4f8da", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling pick-one v1.0.1
[INFO] [stderr]    Compiling random_nice_emoji v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "a21cd6bcaa3c779e3b1b54cf6918dfe1d8cad789d66d7bd40f62459fb4f4f8da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a21cd6bcaa3c779e3b1b54cf6918dfe1d8cad789d66d7bd40f62459fb4f4f8da", kill_on_drop: false }`
[INFO] [stdout] a21cd6bcaa3c779e3b1b54cf6918dfe1d8cad789d66d7bd40f62459fb4f4f8da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", 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] 1d1c4edc2dd4afcc93da5fa9462b1d9a68ea88f01a075a301724ea9f5110a4b5
[INFO] running `Command { std: "docker" "start" "-a" "1d1c4edc2dd4afcc93da5fa9462b1d9a68ea88f01a075a301724ea9f5110a4b5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling random_nice_emoji v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "1d1c4edc2dd4afcc93da5fa9462b1d9a68ea88f01a075a301724ea9f5110a4b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d1c4edc2dd4afcc93da5fa9462b1d9a68ea88f01a075a301724ea9f5110a4b5", kill_on_drop: false }`
[INFO] [stdout] 1d1c4edc2dd4afcc93da5fa9462b1d9a68ea88f01a075a301724ea9f5110a4b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 982d34336938b166c6493026cb69c56b02d428d0d458c4c0475b731d6853b5a8
[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" "982d34336938b166c6493026cb69c56b02d428d0d458c4c0475b731d6853b5a8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/random_nice_emoji-c5dedf286cc946fc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "982d34336938b166c6493026cb69c56b02d428d0d458c4c0475b731d6853b5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "982d34336938b166c6493026cb69c56b02d428d0d458c4c0475b731d6853b5a8", kill_on_drop: false }`
[INFO] [stdout] 982d34336938b166c6493026cb69c56b02d428d0d458c4c0475b731d6853b5a8