[INFO] fetching crate benbot 0.1.0...
[INFO] testing benbot-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate benbot 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate benbot 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate benbot 0.1.0
[INFO] finished tweaking crates.io crate benbot 0.1.0
[INFO] tweaked toml for crates.io crate benbot 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate benbot 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 4d0894953efbc666bbf5c56d57c26f9c7e5fd210825e42aeafc5286e07518f25
[INFO] running `Command { std: "docker" "start" "-a" "4d0894953efbc666bbf5c56d57c26f9c7e5fd210825e42aeafc5286e07518f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d0894953efbc666bbf5c56d57c26f9c7e5fd210825e42aeafc5286e07518f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0894953efbc666bbf5c56d57c26f9c7e5fd210825e42aeafc5286e07518f25", kill_on_drop: false }`
[INFO] [stdout] 4d0894953efbc666bbf5c56d57c26f9c7e5fd210825e42aeafc5286e07518f25
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] b9fa19911a4b8189a502a42a08175ae8fffd1052dab8bc2942f075d68d32b3ea
[INFO] running `Command { std: "docker" "start" "-a" "b9fa19911a4b8189a502a42a08175ae8fffd1052dab8bc2942f075d68d32b3ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling tracing v0.1.17
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.6
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling hyper v0.13.7
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.7
[INFO] [stderr]    Compiling benbot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pak`
[INFO] [stdout]   --> src/lib.rs:51:47
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub async fn get_dynamic_pak_files(&self, pak: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_pak`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Language`
[INFO] [stdout]  --> src/bin/test.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use benbot::{Benbot, Language};
[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 1m 41s
[INFO] running `Command { std: "docker" "inspect" "b9fa19911a4b8189a502a42a08175ae8fffd1052dab8bc2942f075d68d32b3ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9fa19911a4b8189a502a42a08175ae8fffd1052dab8bc2942f075d68d32b3ea", kill_on_drop: false }`
[INFO] [stdout] b9fa19911a4b8189a502a42a08175ae8fffd1052dab8bc2942f075d68d32b3ea
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a66c11002ff20ea4dfc7e93b1c9e51a7eb52bfe936232b8664a41624f18fe0cb
[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" "a66c11002ff20ea4dfc7e93b1c9e51a7eb52bfe936232b8664a41624f18fe0cb", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `pak`
[INFO] [stdout]   --> src/lib.rs:51:47
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub async fn get_dynamic_pak_files(&self, pak: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_pak`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling benbot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Language`
[INFO] [stdout]  --> src/bin/test.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use benbot::{Benbot, Language};
[INFO] [stdout]   |                      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pak`
[INFO] [stdout]   --> src/lib.rs:51:47
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub async fn get_dynamic_pak_files(&self, pak: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_pak`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "a66c11002ff20ea4dfc7e93b1c9e51a7eb52bfe936232b8664a41624f18fe0cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a66c11002ff20ea4dfc7e93b1c9e51a7eb52bfe936232b8664a41624f18fe0cb", kill_on_drop: false }`
[INFO] [stdout] a66c11002ff20ea4dfc7e93b1c9e51a7eb52bfe936232b8664a41624f18fe0cb
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bd8520ecdcb853b405862c24efc334d94cf0ca867af84c5a0f8be65687921c6d
[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" "bd8520ecdcb853b405862c24efc334d94cf0ca867af84c5a0f8be65687921c6d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `pak`
[INFO] [stderr]   --> src/lib.rs:51:47
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub async fn get_dynamic_pak_files(&self, pak: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stderr]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_pak`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pak`
[INFO] [stderr]   --> src/lib.rs:51:47
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub async fn get_dynamic_pak_files(&self, pak: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stderr]    |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_pak`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Language`
[INFO] [stderr]  --> src/bin/test.rs:1:22
[INFO] [stderr]   |
[INFO] [stderr] 1 | use benbot::{Benbot, Language};
[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 0.21s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/benbot-7c4e3180ec74a80d
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-6e54c5c1e5156416
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests benbot
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bd8520ecdcb853b405862c24efc334d94cf0ca867af84c5a0f8be65687921c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8520ecdcb853b405862c24efc334d94cf0ca867af84c5a0f8be65687921c6d", kill_on_drop: false }`
[INFO] [stdout] bd8520ecdcb853b405862c24efc334d94cf0ca867af84c5a0f8be65687921c6d