[INFO] fetching crate list 0.1.3...
[INFO] testing list-0.1.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate list 0.1.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate list 0.1.3 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 list 0.1.3
[INFO] finished tweaking crates.io crate list 0.1.3
[INFO] tweaked toml for crates.io crate list 0.1.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2fadc8aaae2a6f03dd6d6a3c2a2215ccb60c9120ea320e34a671e781d8e4d68
[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" "a2fadc8aaae2a6f03dd6d6a3c2a2215ccb60c9120ea320e34a671e781d8e4d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2fadc8aaae2a6f03dd6d6a3c2a2215ccb60c9120ea320e34a671e781d8e4d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2fadc8aaae2a6f03dd6d6a3c2a2215ccb60c9120ea320e34a671e781d8e4d68", kill_on_drop: false }`
[INFO] [stdout] a2fadc8aaae2a6f03dd6d6a3c2a2215ccb60c9120ea320e34a671e781d8e4d68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23ee00c7dd77f473c06c1c87f556caed07d89edfc65c209c2966ae1078080155
[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" "23ee00c7dd77f473c06c1c87f556caed07d89edfc65c209c2966ae1078080155", kill_on_drop: false }`
[INFO] [stderr]    Compiling list v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "23ee00c7dd77f473c06c1c87f556caed07d89edfc65c209c2966ae1078080155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23ee00c7dd77f473c06c1c87f556caed07d89edfc65c209c2966ae1078080155", kill_on_drop: false }`
[INFO] [stdout] 23ee00c7dd77f473c06c1c87f556caed07d89edfc65c209c2966ae1078080155
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 149554d9edff3111c1d734193a6ea116c0583ca80e612e6c0f83e9058f7a2e25
[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" "149554d9edff3111c1d734193a6ea116c0583ca80e612e6c0f83e9058f7a2e25", kill_on_drop: false }`
[INFO] [stderr]    Compiling list v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "149554d9edff3111c1d734193a6ea116c0583ca80e612e6c0f83e9058f7a2e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149554d9edff3111c1d734193a6ea116c0583ca80e612e6c0f83e9058f7a2e25", kill_on_drop: false }`
[INFO] [stdout] 149554d9edff3111c1d734193a6ea116c0583ca80e612e6c0f83e9058f7a2e25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bff920ff1f57db3b0ba99622a675b23d42a0de9d5df6ba1358955f951ad7f197
[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" "bff920ff1f57db3b0ba99622a675b23d42a0de9d5df6ba1358955f951ad7f197", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/list-191886952fc36e34
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::basics ... ok
[INFO] [stdout] test test::into_iter ... ok
[INFO] [stdout] test test::iter ... ok
[INFO] [stdout] test test::iter_mut ... ok
[INFO] [stdout] test test::peek ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests list
[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" "bff920ff1f57db3b0ba99622a675b23d42a0de9d5df6ba1358955f951ad7f197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bff920ff1f57db3b0ba99622a675b23d42a0de9d5df6ba1358955f951ad7f197", kill_on_drop: false }`
[INFO] [stdout] bff920ff1f57db3b0ba99622a675b23d42a0de9d5df6ba1358955f951ad7f197