[INFO] fetching crate dynamic-pool 0.2.2...
[INFO] testing dynamic-pool-0.2.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate dynamic-pool 0.2.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dynamic-pool 0.2.2 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dynamic-pool 0.2.2
[INFO] finished tweaking crates.io crate dynamic-pool 0.2.2
[INFO] tweaked toml for crates.io crate dynamic-pool 0.2.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate dynamic-pool 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ba663885d8fb2ac1212501d4aceccb2e6c97af2af459b2cdc2c630ce0b3c8fd
[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" "4ba663885d8fb2ac1212501d4aceccb2e6c97af2af459b2cdc2c630ce0b3c8fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ba663885d8fb2ac1212501d4aceccb2e6c97af2af459b2cdc2c630ce0b3c8fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ba663885d8fb2ac1212501d4aceccb2e6c97af2af459b2cdc2c630ce0b3c8fd", kill_on_drop: false }`
[INFO] [stdout] 4ba663885d8fb2ac1212501d4aceccb2e6c97af2af459b2cdc2c630ce0b3c8fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c25b89896eeeec13ee3653571fae52cdfeb0bb2444ad0dc02620b1b45bac500b
[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" "c25b89896eeeec13ee3653571fae52cdfeb0bb2444ad0dc02620b1b45bac500b", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling dynamic-pool v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "c25b89896eeeec13ee3653571fae52cdfeb0bb2444ad0dc02620b1b45bac500b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c25b89896eeeec13ee3653571fae52cdfeb0bb2444ad0dc02620b1b45bac500b", kill_on_drop: false }`
[INFO] [stdout] c25b89896eeeec13ee3653571fae52cdfeb0bb2444ad0dc02620b1b45bac500b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc04c60eef15c12fabeadf3d5bf1523b3e7eed1d5bcc8a12bced9c2b015e17c
[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" "dbc04c60eef15c12fabeadf3d5bf1523b3e7eed1d5bcc8a12bced9c2b015e17c", kill_on_drop: false }`
[INFO] [stderr]    Compiling dynamic-pool v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "dbc04c60eef15c12fabeadf3d5bf1523b3e7eed1d5bcc8a12bced9c2b015e17c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc04c60eef15c12fabeadf3d5bf1523b3e7eed1d5bcc8a12bced9c2b015e17c", kill_on_drop: false }`
[INFO] [stdout] dbc04c60eef15c12fabeadf3d5bf1523b3e7eed1d5bcc8a12bced9c2b015e17c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] c7009366dfe31f987f5316f9256054c6c738e79265a277e4ce5964c406b7475a
[INFO] running `Command { std: "docker" "start" "-a" "c7009366dfe31f987f5316f9256054c6c738e79265a277e4ce5964c406b7475a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dynamic_pool-6ee267155c482a15
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests dynamic-pool
[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] running `Command { std: "docker" "inspect" "c7009366dfe31f987f5316f9256054c6c738e79265a277e4ce5964c406b7475a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7009366dfe31f987f5316f9256054c6c738e79265a277e4ce5964c406b7475a", kill_on_drop: false }`
[INFO] [stdout] c7009366dfe31f987f5316f9256054c6c738e79265a277e4ce5964c406b7475a