[INFO] cloning repository https://github.com/Lang-Labs/raft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lang-Labs/raft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLang-Labs%2Fraft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLang-Labs%2Fraft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4af57991161e75729ced205572515f42b43d2200
[INFO] checking Lang-Labs/raft against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLang-Labs%2Fraft" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lang-Labs/raft on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lang-Labs/raft
[INFO] finished tweaking git repo https://github.com/Lang-Labs/raft
[INFO] tweaked toml for git repo https://github.com/Lang-Labs/raft written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Lang-Labs/raft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.61
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.61
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.61
[INFO] [stderr]   Downloaded js-sys v0.3.38
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.61
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.61
[INFO] [stderr]   Downloaded web-sys v0.3.38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b37e03fbc57bb3831fa3ae47b7813cb4ac9de91d64b906618377f059b28e9d2a
[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" "b37e03fbc57bb3831fa3ae47b7813cb4ac9de91d64b906618377f059b28e9d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b37e03fbc57bb3831fa3ae47b7813cb4ac9de91d64b906618377f059b28e9d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b37e03fbc57bb3831fa3ae47b7813cb4ac9de91d64b906618377f059b28e9d2a", kill_on_drop: false }`
[INFO] [stdout] b37e03fbc57bb3831fa3ae47b7813cb4ac9de91d64b906618377f059b28e9d2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9387f56b5ee15cc35f9a8dce17c148dee3554c6aeaeb5e4dc8a79f177814d042
[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" "9387f56b5ee15cc35f9a8dce17c148dee3554c6aeaeb5e4dc8a79f177814d042", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]     Checking linearizability v0.1.0 (/opt/rustwide/workdir/linearizability)
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking criterion-plot v0.4.2
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking tinytemplate v1.0.4
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling async-trait v0.1.30
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking criterion v0.3.2
[INFO] [stderr]    Compiling labcodec v0.1.0 (/opt/rustwide/workdir/labcodec)
[INFO] [stderr]    Compiling raft v0.1.0 (/opt/rustwide/workdir/raft)
[INFO] [stderr]    Compiling percolator v0.1.0 (/opt/rustwide/workdir/percolator)
[INFO] [stderr]     Checking labrpc v0.1.0 (/opt/rustwide/workdir/labrpc)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> raft/src/raft/tests.rs:925:6
[INFO] [stdout]     |
[INFO] [stdout] 925 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> raft/src/raft/mod.rs:265:68
[INFO] [stdout]     |
[INFO] [stdout] 265 |                         mpsc::TryRecvError::Disconnected => panic!(e),
[INFO] [stdout]     |                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 265 |                         mpsc::TryRecvError::Disconnected => panic!("{}", e),
[INFO] [stdout]     |                                                                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 265 |                         mpsc::TryRecvError::Disconnected => std::panic::panic_any(e),
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> raft/src/raft/mod.rs:265:68
[INFO] [stdout]     |
[INFO] [stdout] 265 |                         mpsc::TryRecvError::Disconnected => panic!(e),
[INFO] [stdout]     |                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 265 |                         mpsc::TryRecvError::Disconnected => panic!("{}", e),
[INFO] [stdout]     |                                                                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 265 |                         mpsc::TryRecvError::Disconnected => std::panic::panic_any(e),
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "9387f56b5ee15cc35f9a8dce17c148dee3554c6aeaeb5e4dc8a79f177814d042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9387f56b5ee15cc35f9a8dce17c148dee3554c6aeaeb5e4dc8a79f177814d042", kill_on_drop: false }`
[INFO] [stdout] 9387f56b5ee15cc35f9a8dce17c148dee3554c6aeaeb5e4dc8a79f177814d042