[INFO] cloning repository https://github.com/jakegallow/tokio-traffic-jam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakegallow/tokio-traffic-jam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakegallow%2Ftokio-traffic-jam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakegallow%2Ftokio-traffic-jam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d8a6fd04cbe50b3de059f25e4f77008a6592ae7
[INFO] testing jakegallow/tokio-traffic-jam against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakegallow%2Ftokio-traffic-jam" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jakegallow/tokio-traffic-jam
[INFO] finished tweaking git repo https://github.com/jakegallow/tokio-traffic-jam
[INFO] tweaked toml for git repo https://github.com/jakegallow/tokio-traffic-jam written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jakegallow/tokio-traffic-jam on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jakegallow/tokio-traffic-jam already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973
[INFO] running `Command { std: "docker" "start" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.1
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling syn v2.0.14
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling anstyle-parse v0.1.1
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling is-terminal v0.4.7
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling concolor-query v0.3.3
[INFO] [stderr]    Compiling concolor-override v1.0.0
[INFO] [stderr]    Compiling anstyle v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.95
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling anstream v0.2.6
[INFO] [stderr]    Compiling axum v0.6.15
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling clap_lex v0.4.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling clap_builder v4.2.1
[INFO] [stderr]    Compiling serde_path_to_error v0.1.11
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling matchit v0.7.0
[INFO] [stderr]    Compiling clap_derive v4.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling pin-project v1.0.12
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling hyper v0.14.25
[INFO] [stderr]    Compiling clap v4.2.1
[INFO] [stderr]    Compiling tokio-traffic-jam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `num` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let mut num = 0;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_num` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `num` is never read
[INFO] [stdout]    --> src/main.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         num += 1;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-traffic-jam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `num` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let mut num = 0;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_num` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `num` is never read
[INFO] [stdout]    --> src/main.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         num += 1;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: variable `num` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut num = 0;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_num` instead
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `num` is never read
[INFO] [stderr]    --> src/main.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |         num += 1;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-traffic-jam` (bin "tokio-traffic-jam" test) generated 2 warnings
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/tokio_traffic_jam-a625b0fec9e27cfe)
[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" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973", kill_on_drop: false }`
[INFO] [stdout] f549a1503e1d021d7abf9917e96eac28d90a69606c72131f8435e3227f51c973