[INFO] fetching crate model 0.1.2...
[INFO] testing model-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate model 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate model 0.1.2 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 model 0.1.2
[INFO] finished tweaking crates.io crate model 0.1.2
[INFO] tweaked toml for crates.io crate model 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] d71fe2e8dfe64cdb46840f869937155e0c4815e7d397a2cc075c731be7717179
[INFO] running `Command { std: "docker" "start" "-a" "d71fe2e8dfe64cdb46840f869937155e0c4815e7d397a2cc075c731be7717179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d71fe2e8dfe64cdb46840f869937155e0c4815e7d397a2cc075c731be7717179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d71fe2e8dfe64cdb46840f869937155e0c4815e7d397a2cc075c731be7717179", kill_on_drop: false }`
[INFO] [stdout] d71fe2e8dfe64cdb46840f869937155e0c4815e7d397a2cc075c731be7717179
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] f8848fd82521cc3ed17b2706cc28b432d903186d9e8aaef7161c93733bf21983
[INFO] running `Command { std: "docker" "start" "-a" "f8848fd82521cc3ed17b2706cc28b432d903186d9e8aaef7161c93733bf21983", kill_on_drop: false }`
[INFO] [stderr]    Compiling permutohedron v0.2.4
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling proptest v0.8.7
[INFO] [stderr]    Compiling model v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.61s
[INFO] running `Command { std: "docker" "inspect" "f8848fd82521cc3ed17b2706cc28b432d903186d9e8aaef7161c93733bf21983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8848fd82521cc3ed17b2706cc28b432d903186d9e8aaef7161c93733bf21983", kill_on_drop: false }`
[INFO] [stdout] f8848fd82521cc3ed17b2706cc28b432d903186d9e8aaef7161c93733bf21983
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e39477404bc354d2ade5b936daa39543d60b2d089c9053031966ec330a0898c
[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" "7e39477404bc354d2ade5b936daa39543d60b2d089c9053031966ec330a0898c", kill_on_drop: false }`
[INFO] [stderr]    Compiling model v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `prop_oneof` in this scope
[INFO] [stdout]   --> tests/model.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     model! {
[INFO] [stdout] 8  | |         Model => let m = AtomicUsize::new(0),
[INFO] [stdout] 9  | |         Implementation => let mut i: usize = 0,
[INFO] [stdout] 10 | |         Add(usize)(v in 0usize..4) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |         }
[INFO] [stdout] 35 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            model::prop_oneof
[INFO] [stdout]            proptest::prop_oneof
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `prop_oneof` in this scope
[INFO] [stdout]   --> tests/model.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     linearizable! {
[INFO] [stdout] 45 | |         Implementation => let i = Shared::new(AtomicUsize::new(0)),
[INFO] [stdout] 46 | |         BuggyAdd(usize)(v in 0usize..4) -> usize {
[INFO] [stdout] 47 | |             let current = i.load(Ordering::SeqCst);
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         }
[INFO] [stdout] 65 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            model::prop_oneof
[INFO] [stdout]            proptest::prop_oneof
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `prop_oneof` in this scope
[INFO] [stdout]   --> tests/model.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | /     linearizable! {
[INFO] [stdout] 74 | |         Implementation => let i = Shared::new(AtomicUsize::new(0)),
[INFO] [stdout] 75 | |         Add(usize)(v in 0usize..4) -> usize {
[INFO] [stdout] 76 | |             i.fetch_add(v, Ordering::SeqCst)
[INFO] [stdout] ...  |
[INFO] [stdout] 83 | |         }
[INFO] [stdout] 84 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing one of these items:
[INFO] [stdout]            model::prop_oneof
[INFO] [stdout]            proptest::prop_oneof
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `model`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7e39477404bc354d2ade5b936daa39543d60b2d089c9053031966ec330a0898c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e39477404bc354d2ade5b936daa39543d60b2d089c9053031966ec330a0898c", kill_on_drop: false }`
[INFO] [stdout] 7e39477404bc354d2ade5b936daa39543d60b2d089c9053031966ec330a0898c