[INFO] cloning repository https://github.com/robn/twister
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robn/twister" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobn%2Ftwister", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobn%2Ftwister'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3323bcd554bd2dbf24d7d67a05ec92733068260
[INFO] testing robn/twister against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobn%2Ftwister" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robn/twister on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robn/twister
[INFO] finished tweaking git repo https://github.com/robn/twister
[INFO] tweaked toml for git repo https://github.com/robn/twister written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/robn/twister already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee484d564a954eba15bee95d5a88f21cee70357d1a4dfcb2c22e7a5eaf8d9ff9
[INFO] running `Command { std: "docker" "start" "-a" "ee484d564a954eba15bee95d5a88f21cee70357d1a4dfcb2c22e7a5eaf8d9ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee484d564a954eba15bee95d5a88f21cee70357d1a4dfcb2c22e7a5eaf8d9ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee484d564a954eba15bee95d5a88f21cee70357d1a4dfcb2c22e7a5eaf8d9ff9", kill_on_drop: false }`
[INFO] [stdout] ee484d564a954eba15bee95d5a88f21cee70357d1a4dfcb2c22e7a5eaf8d9ff9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b2a2336a7409e890609507259ad2970ab65ac79e39f085613c56be21577dcd4
[INFO] running `Command { std: "docker" "start" "-a" "1b2a2336a7409e890609507259ad2970ab65ac79e39f085613c56be21577dcd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bimap v0.6.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling hecs v0.3.2
[INFO] [stderr]    Compiling mio v0.7.9
[INFO] [stderr]    Compiling twister v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]    --> src/server.rs:123:35
[INFO] [stdout]     |
[INFO] [stdout] 123 |                   if let Some((_, entity)) = self.token_entity.remove_by_left(&token) {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]   --> src/channel.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     .for_each(|(entity, io)| {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/channel.rs:33:25
[INFO] [stdout]    |
[INFO] [stdout] 33 |     .for_each(|(entity, c)| {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.74s
[INFO] running `Command { std: "docker" "inspect" "1b2a2336a7409e890609507259ad2970ab65ac79e39f085613c56be21577dcd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2a2336a7409e890609507259ad2970ab65ac79e39f085613c56be21577dcd4", kill_on_drop: false }`
[INFO] [stdout] 1b2a2336a7409e890609507259ad2970ab65ac79e39f085613c56be21577dcd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 109d8a8ce404c59898a7b841a6eafd690e48800cb0af63ec399fd7871fef8421
[INFO] running `Command { std: "docker" "start" "-a" "109d8a8ce404c59898a7b841a6eafd690e48800cb0af63ec399fd7871fef8421", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling twister v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]    --> src/server.rs:123:35
[INFO] [stdout]     |
[INFO] [stdout] 123 |                   if let Some((_, entity)) = self.token_entity.remove_by_left(&token) {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]   --> src/channel.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |                     .for_each(|(entity, io)| {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/channel.rs:33:25
[INFO] [stdout]    |
[INFO] [stdout] 33 |     .for_each(|(entity, c)| {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.93s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "109d8a8ce404c59898a7b841a6eafd690e48800cb0af63ec399fd7871fef8421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109d8a8ce404c59898a7b841a6eafd690e48800cb0af63ec399fd7871fef8421", kill_on_drop: false }`
[INFO] [stdout] 109d8a8ce404c59898a7b841a6eafd690e48800cb0af63ec399fd7871fef8421
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4c176071db31ef4a1df1a2e0fa89928f1960190c209a7d2c9dca3bc2c7deb1b8
[INFO] running `Command { std: "docker" "start" "-a" "4c176071db31ef4a1df1a2e0fa89928f1960190c209a7d2c9dca3bc2c7deb1b8", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `entity`
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/server.rs:123:35
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 123 |                   if let Some((_, entity)) = self.token_entity.remove_by_left(&token) {
[INFO] [stdout] 
[INFO] [stderr]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entity`
[INFO] [stderr]   --> src/channel.rs:49:33
[INFO] [stderr]    |
[INFO] [stderr] 49 |                     .for_each(|(entity, io)| {
[INFO] [stderr]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/channel.rs:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 |     .for_each(|(entity, c)| {
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: `twister` (bin "twister" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/twister-81ca46385651c008)
[INFO] running `Command { std: "docker" "inspect" "4c176071db31ef4a1df1a2e0fa89928f1960190c209a7d2c9dca3bc2c7deb1b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c176071db31ef4a1df1a2e0fa89928f1960190c209a7d2c9dca3bc2c7deb1b8", kill_on_drop: false }`
[INFO] [stdout] 4c176071db31ef4a1df1a2e0fa89928f1960190c209a7d2c9dca3bc2c7deb1b8