[INFO] cloning repository https://github.com/aeryz/mit-6.824-labs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aeryz/mit-6.824-labs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faeryz%2Fmit-6.824-labs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faeryz%2Fmit-6.824-labs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b7ea3e7bf45caeada81ef175cda22e3d22d70b9
[INFO] testing aeryz/mit-6.824-labs against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faeryz%2Fmit-6.824-labs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aeryz/mit-6.824-labs on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aeryz/mit-6.824-labs
[INFO] finished tweaking git repo https://github.com/aeryz/mit-6.824-labs
[INFO] tweaked toml for git repo https://github.com/aeryz/mit-6.824-labs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/aeryz/mit-6.824-labs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 9f33ca985ec19d3c307f300ddbbfebcae7a568efd5a393c4de288a1a5174c236
[INFO] running `Command { std: "docker" "start" "-a" "9f33ca985ec19d3c307f300ddbbfebcae7a568efd5a393c4de288a1a5174c236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f33ca985ec19d3c307f300ddbbfebcae7a568efd5a393c4de288a1a5174c236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f33ca985ec19d3c307f300ddbbfebcae7a568efd5a393c4de288a1a5174c236", kill_on_drop: false }`
[INFO] [stdout] 9f33ca985ec19d3c307f300ddbbfebcae7a568efd5a393c4de288a1a5174c236
[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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4bc7a8ae2c3482e10028727b9ad000a3dff13a03eb558a0f74c5668cd51847f
[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" "f4bc7a8ae2c3482e10028727b9ad000a3dff13a03eb558a0f74c5668cd51847f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling mr-sequential v0.1.0 (/opt/rustwide/workdir/mr-sequential)
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling tokio v0.3.6
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]    Compiling srpc-macros v0.1.0 (https://github.com/aeryz/srpc?branch=main#311d29ca)
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling mr-common v0.1.0 (/opt/rustwide/workdir/mr-common)
[INFO] [stderr]    Compiling srpc v0.1.0 (https://github.com/aeryz/srpc?branch=main#311d29ca)
[INFO] [stderr]    Compiling mr-master v0.1.0 (/opt/rustwide/workdir/mr-master)
[INFO] [stderr]    Compiling mr-worker v0.1.0 (/opt/rustwide/workdir/mr-worker)
[INFO] [stdout] warning: unused imports: `IpAddr`, `Ipv4Addr`, `SocketAddr`, `client::Client`, `sync::Arc`, `transport::Transport`
[INFO] [stdout]  --> mr-worker/src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     srpc::{client::Client, transport::Transport},
[INFO] [stdout]   |            ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     std::{
[INFO] [stdout] 4 |         net::{IpAddr, Ipv4Addr, SocketAddr},
[INFO] [stdout]   |               ^^^^^^  ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 5 |         sync::Arc,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 41.91s
[INFO] running `Command { std: "docker" "inspect" "f4bc7a8ae2c3482e10028727b9ad000a3dff13a03eb558a0f74c5668cd51847f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4bc7a8ae2c3482e10028727b9ad000a3dff13a03eb558a0f74c5668cd51847f", kill_on_drop: false }`
[INFO] [stdout] f4bc7a8ae2c3482e10028727b9ad000a3dff13a03eb558a0f74c5668cd51847f
[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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13b5644b1f91ad17c06a106d193151a60f0806213b5439da877d4c9cf1ec93fa
[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" "13b5644b1f91ad17c06a106d193151a60f0806213b5439da877d4c9cf1ec93fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling mr-sequential v0.1.0 (/opt/rustwide/workdir/mr-sequential)
[INFO] [stderr]    Compiling mr-common v0.1.0 (/opt/rustwide/workdir/mr-common)
[INFO] [stderr]    Compiling mr-master v0.1.0 (/opt/rustwide/workdir/mr-master)
[INFO] [stderr]    Compiling mr-worker v0.1.0 (/opt/rustwide/workdir/mr-worker)
[INFO] [stdout] warning: unused imports: `IpAddr`, `Ipv4Addr`, `SocketAddr`, `client::Client`, `sync::Arc`, `transport::Transport`
[INFO] [stdout]  --> mr-worker/src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     srpc::{client::Client, transport::Transport},
[INFO] [stdout]   |            ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     std::{
[INFO] [stdout] 4 |         net::{IpAddr, Ipv4Addr, SocketAddr},
[INFO] [stdout]   |               ^^^^^^  ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 5 |         sync::Arc,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 2.66s
[INFO] running `Command { std: "docker" "inspect" "13b5644b1f91ad17c06a106d193151a60f0806213b5439da877d4c9cf1ec93fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13b5644b1f91ad17c06a106d193151a60f0806213b5439da877d4c9cf1ec93fa", kill_on_drop: false }`
[INFO] [stdout] 13b5644b1f91ad17c06a106d193151a60f0806213b5439da877d4c9cf1ec93fa
[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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7b2430dd5a4257fcf4baea8994916dd1aa956dc1197668e73c080d70bedab556
[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" "7b2430dd5a4257fcf4baea8994916dd1aa956dc1197668e73c080d70bedab556", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `IpAddr`, `Ipv4Addr`, `SocketAddr`, `client::Client`, `sync::Arc`, `transport::Transport`
[INFO] [stderr]  --> mr-worker/src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 |     srpc::{client::Client, transport::Transport},
[INFO] [stderr]   |            ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 3 |     std::{
[INFO] [stderr] 4 |         net::{IpAddr, Ipv4Addr, SocketAddr},
[INFO] [stderr]   |               ^^^^^^  ^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 5 |         sync::Arc,
[INFO] [stderr]   |         ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mr_common-c1fc1088452d1709)
[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 unittests (/opt/rustwide/target/debug/deps/mr_master-baf46e39fe202832)
[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 unittests (/opt/rustwide/target/debug/deps/mr_master-3ac5be9dbf4c9859)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mr_sequential-5efb1435095b3a11)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mr_worker-7a335cde19f4c2f7)
[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] [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] [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 unittests (/opt/rustwide/target/debug/deps/mr_worker-57000ce034319cb6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mr-master
[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] [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]    Doc-tests mr-common
[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]    Doc-tests mr-worker
[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] running `Command { std: "docker" "inspect" "7b2430dd5a4257fcf4baea8994916dd1aa956dc1197668e73c080d70bedab556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b2430dd5a4257fcf4baea8994916dd1aa956dc1197668e73c080d70bedab556", kill_on_drop: false }`
[INFO] [stdout] 7b2430dd5a4257fcf4baea8994916dd1aa956dc1197668e73c080d70bedab556