[INFO] fetching crate paxos 0.0.5...
[INFO] testing paxos-0.0.5 against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take3
[INFO] extracting crate paxos 0.0.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate paxos 0.0.5 on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate paxos 0.0.5
[INFO] finished tweaking crates.io crate paxos 0.0.5
[INFO] tweaked toml for crates.io crate paxos 0.0.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sled v0.31.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91897a21333649ffee7f4ce4935513b5b868d2237c37f7e82724d8504f7b9c3e
[INFO] running `Command { std: "docker" "start" "-a" "91897a21333649ffee7f4ce4935513b5b868d2237c37f7e82724d8504f7b9c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91897a21333649ffee7f4ce4935513b5b868d2237c37f7e82724d8504f7b9c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91897a21333649ffee7f4ce4935513b5b868d2237c37f7e82724d8504f7b9c3e", kill_on_drop: false }`
[INFO] [stdout] 91897a21333649ffee7f4ce4935513b5b868d2237c37f7e82724d8504f7b9c3e
[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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] e28e778bf0a9ffdd49b758a189ddcedf694fa90aef7f217836638a91c9538784
[INFO] running `Command { std: "docker" "start" "-a" "e28e778bf0a9ffdd49b758a189ddcedf694fa90aef7f217836638a91c9538784", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling serde v1.0.149
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.149
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling sled v0.31.0
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling paxos v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `proposers`, `req_counter`, and `in_flight` are never read
[INFO] [stdout]  --> src/client.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Client {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 7 |     proposers: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     req_counter: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 9 |     in_flight: HashMap<u64, ()>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Client` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.74s
[INFO] running `Command { std: "docker" "inspect" "e28e778bf0a9ffdd49b758a189ddcedf694fa90aef7f217836638a91c9538784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28e778bf0a9ffdd49b758a189ddcedf694fa90aef7f217836638a91c9538784", kill_on_drop: false }`
[INFO] [stdout] e28e778bf0a9ffdd49b758a189ddcedf694fa90aef7f217836638a91c9538784
[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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] d75ca4cc99a01fbf10f37de09417daa70faacb9eb395aaef9958f93e9c835df4
[INFO] running `Command { std: "docker" "start" "-a" "d75ca4cc99a01fbf10f37de09417daa70faacb9eb395aaef9958f93e9c835df4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stdout] warning: fields `proposers`, `req_counter`, and `in_flight` are never read
[INFO] [stdout]  --> src/client.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Client {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 7 |     proposers: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     req_counter: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 9 |     in_flight: HashMap<u64, ()>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Client` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.7.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling paxos v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `proposers`, `req_counter`, and `in_flight` are never read
[INFO] [stdout]  --> src/client.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Client {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 7 |     proposers: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     req_counter: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 9 |     in_flight: HashMap<u64, ()>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Client` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.09s
[INFO] running `Command { std: "docker" "inspect" "d75ca4cc99a01fbf10f37de09417daa70faacb9eb395aaef9958f93e9c835df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d75ca4cc99a01fbf10f37de09417daa70faacb9eb395aaef9958f93e9c835df4", kill_on_drop: false }`
[INFO] [stdout] d75ca4cc99a01fbf10f37de09417daa70faacb9eb395aaef9958f93e9c835df4
[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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] fc3162705a2e5bbb6481a81102598c131b32a4363103349d84950bf01035434a
[INFO] running `Command { std: "docker" "start" "-a" "fc3162705a2e5bbb6481a81102598c131b32a4363103349d84950bf01035434a", kill_on_drop: false }`
[INFO] [stderr] warning: fields `proposers`, `req_counter`, and `in_flight` are never read
[INFO] [stderr]  --> src/client.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Client {
[INFO] [stderr]   |            ------ fields in this struct
[INFO] [stderr] 7 |     proposers: Vec<String>,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 8 |     req_counter: u64,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 9 |     in_flight: HashMap<u64, ()>,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Client` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `paxos` (lib) generated 1 warning
[INFO] [stderr] warning: `paxos` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/paxos-95e1a84f0c5caccd)
[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] [stderr]      Running tests/quickcheck.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/quickcheck-7e97eaae92c5597d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test linearizability_bug_01 ... ok
[INFO] [stdout] test test_quickcheck_paxos_linearizes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 13.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fc3162705a2e5bbb6481a81102598c131b32a4363103349d84950bf01035434a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc3162705a2e5bbb6481a81102598c131b32a4363103349d84950bf01035434a", kill_on_drop: false }`
[INFO] [stdout] fc3162705a2e5bbb6481a81102598c131b32a4363103349d84950bf01035434a