[INFO] fetching crate quiz 0.0.3...
[INFO] testing quiz-0.0.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate quiz 0.0.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate quiz 0.0.3 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quiz 0.0.3
[INFO] finished tweaking crates.io crate quiz 0.0.3
[INFO] tweaked toml for crates.io crate quiz 0.0.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate quiz 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1e19ef35710a0643399ad77e1c4d65f4e3ee9a1f101e040e63536beeca0b87b
[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" "c1e19ef35710a0643399ad77e1c4d65f4e3ee9a1f101e040e63536beeca0b87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1e19ef35710a0643399ad77e1c4d65f4e3ee9a1f101e040e63536beeca0b87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e19ef35710a0643399ad77e1c4d65f4e3ee9a1f101e040e63536beeca0b87b", kill_on_drop: false }`
[INFO] [stdout] c1e19ef35710a0643399ad77e1c4d65f4e3ee9a1f101e040e63536beeca0b87b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d608a122f8f15a8935127fbf7fe5afbffd965ea8dd3ff50b5243ec2da53832f3
[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" "d608a122f8f15a8935127fbf7fe5afbffd965ea8dd3ff50b5243ec2da53832f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling figures-rs v0.0.1
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling quiz v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.18s
[INFO] running `Command { std: "docker" "inspect" "d608a122f8f15a8935127fbf7fe5afbffd965ea8dd3ff50b5243ec2da53832f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d608a122f8f15a8935127fbf7fe5afbffd965ea8dd3ff50b5243ec2da53832f3", kill_on_drop: false }`
[INFO] [stdout] d608a122f8f15a8935127fbf7fe5afbffd965ea8dd3ff50b5243ec2da53832f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "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] 6dbde932713d05a7cc964b986c55ac6deba949dce9a5c594d13645c702f835c4
[INFO] running `Command { std: "docker" "start" "-a" "6dbde932713d05a7cc964b986c55ac6deba949dce9a5c594d13645c702f835c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling quiz v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "6dbde932713d05a7cc964b986c55ac6deba949dce9a5c594d13645c702f835c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dbde932713d05a7cc964b986c55ac6deba949dce9a5c594d13645c702f835c4", kill_on_drop: false }`
[INFO] [stdout] 6dbde932713d05a7cc964b986c55ac6deba949dce9a5c594d13645c702f835c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "test" "--frozen", 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] a5ee5f84fdfce5075c68b35d9afb2e24dacbaec37291a99651d2ac61767f7134
[INFO] running `Command { std: "docker" "start" "-a" "a5ee5f84fdfce5075c68b35d9afb2e24dacbaec37291a99651d2ac61767f7134", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/quiz-f143e22fe6433f41
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-748f104ad7acfdda
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests quiz
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a5ee5f84fdfce5075c68b35d9afb2e24dacbaec37291a99651d2ac61767f7134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ee5f84fdfce5075c68b35d9afb2e24dacbaec37291a99651d2ac61767f7134", kill_on_drop: false }`
[INFO] [stdout] a5ee5f84fdfce5075c68b35d9afb2e24dacbaec37291a99651d2ac61767f7134