[INFO] fetching crate rast 0.1.0-alpha.0...
[INFO] testing rast-0.1.0-alpha.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate rast 0.1.0-alpha.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rast 0.1.0-alpha.0 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rast 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate rast 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate rast 0.1.0-alpha.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0cc338143447f188e58d9c4c76bbea0da79827834f198619ab5d5136f055f5d
[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" "c0cc338143447f188e58d9c4c76bbea0da79827834f198619ab5d5136f055f5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0cc338143447f188e58d9c4c76bbea0da79827834f198619ab5d5136f055f5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0cc338143447f188e58d9c4c76bbea0da79827834f198619ab5d5136f055f5d", kill_on_drop: false }`
[INFO] [stdout] c0cc338143447f188e58d9c4c76bbea0da79827834f198619ab5d5136f055f5d
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] fd2eea25abdacad082585a083554ffec36ec5aa39f8e8c098aa8766070c88ebe
[INFO] running `Command { std: "docker" "start" "-a" "fd2eea25abdacad082585a083554ffec36ec5aa39f8e8c098aa8766070c88ebe", kill_on_drop: false }`
[INFO] [stderr]    Compiling rast v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "fd2eea25abdacad082585a083554ffec36ec5aa39f8e8c098aa8766070c88ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd2eea25abdacad082585a083554ffec36ec5aa39f8e8c098aa8766070c88ebe", kill_on_drop: false }`
[INFO] [stdout] fd2eea25abdacad082585a083554ffec36ec5aa39f8e8c098aa8766070c88ebe
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0083d600ee62b5fcebd2846d31baa7ca4d2256718c0e3dcb3560b13246456764
[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" "0083d600ee62b5fcebd2846d31baa7ca4d2256718c0e3dcb3560b13246456764", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling extreme v666.666.666666
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling rast v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/testutil/noopfuture.rs:45:54
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Poll::Pending => panic!("unexpectedly not ready: {:?}"),
[INFO] [stdout]    |                                                      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Poll::Pending => panic!("unexpectedly not ready: {:?}", ...),
[INFO] [stdout]    |                                                           ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Poll::Pending => panic!("{}", "unexpectedly not ready: {:?}"),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 34.97s
[INFO] running `Command { std: "docker" "inspect" "0083d600ee62b5fcebd2846d31baa7ca4d2256718c0e3dcb3560b13246456764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0083d600ee62b5fcebd2846d31baa7ca4d2256718c0e3dcb3560b13246456764", kill_on_drop: false }`
[INFO] [stdout] 0083d600ee62b5fcebd2846d31baa7ca4d2256718c0e3dcb3560b13246456764
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 72c137eaf5cd3021511f0131dcb4451f5cad8cb540914a419ca36c7d88bddf21
[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" "72c137eaf5cd3021511f0131dcb4451f5cad8cb540914a419ca36c7d88bddf21", kill_on_drop: false }`
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stderr]   --> src/testutil/noopfuture.rs:45:54
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Poll::Pending => panic!("unexpectedly not ready: {:?}"),
[INFO] [stderr]    |                                                      ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(panic_fmt)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Poll::Pending => panic!("unexpectedly not ready: {:?}", ...),
[INFO] [stderr]    |                                                           ^^^^^
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Poll::Pending => panic!("{}", "unexpectedly not ready: {:?}"),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rast-1f777f270afe5b94
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test raft::tests::read_future ... ok
[INFO] [stdout] test raft::tests::regression_follower_write ... ok
[INFO] [stdout] test nemesis::nemesis::tests::validate_ops ... ok
[INFO] [stdout] test raft::tests::tick ... ok
[INFO] [stdout] test raft::tests::leader_timeout ... ok
[INFO] [stdout] test raft::tests::overwrite_entries ... ok
[INFO] [stdout] test compressed_log::tests::extend ... ok
[INFO] [stdout] test raft::tests::election_multi ... ok
[INFO] [stdout] test raft::tests::regression_request_starts_election ... ok
[INFO] [stdout] test raft::tests::election_one ... ok
[INFO] [stdout] test raft::tests::write_future ... ok
[INFO] [stdout] test compressed_log::tests::compressed_log ... ok
[INFO] [stdout] test compressed_log::tests::empty ... ok
[INFO] [stdout] test nemesis::nemesis::tests::nemesis_multi ... ok
[INFO] [stdout] test nemesis::nemesis::tests::nemesis_single ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rast
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72c137eaf5cd3021511f0131dcb4451f5cad8cb540914a419ca36c7d88bddf21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72c137eaf5cd3021511f0131dcb4451f5cad8cb540914a419ca36c7d88bddf21", kill_on_drop: false }`
[INFO] [stdout] 72c137eaf5cd3021511f0131dcb4451f5cad8cb540914a419ca36c7d88bddf21