[INFO] fetching crate creep 0.3.0...
[INFO] testing creep-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate creep 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate creep 0.3.0 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 creep 0.3.0
[INFO] finished tweaking crates.io crate creep 0.3.0
[INFO] tweaked toml for crates.io crate creep 0.3.0 written to /workspace/builds/worker-6/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dyn-clone v1.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 5b6eb4ffba89004a15db17cfc5aeb2e11a31a4ff33e9551fa1091704f2d09d58
[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" "5b6eb4ffba89004a15db17cfc5aeb2e11a31a4ff33e9551fa1091704f2d09d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b6eb4ffba89004a15db17cfc5aeb2e11a31a4ff33e9551fa1091704f2d09d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6eb4ffba89004a15db17cfc5aeb2e11a31a4ff33e9551fa1091704f2d09d58", kill_on_drop: false }`
[INFO] [stdout] 5b6eb4ffba89004a15db17cfc5aeb2e11a31a4ff33e9551fa1091704f2d09d58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d72a4a42a58a294ea4ed706d639f048e3499b7bd269d4d8151f89f6a129afc0f
[INFO] running `Command { std: "docker" "start" "-a" "d72a4a42a58a294ea4ed706d639f048e3499b7bd269d4d8151f89f6a129afc0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling dyn-clone v1.0.4
[INFO] [stderr]    Compiling creep v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "d72a4a42a58a294ea4ed706d639f048e3499b7bd269d4d8151f89f6a129afc0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72a4a42a58a294ea4ed706d639f048e3499b7bd269d4d8151f89f6a129afc0f", kill_on_drop: false }`
[INFO] [stdout] d72a4a42a58a294ea4ed706d639f048e3499b7bd269d4d8151f89f6a129afc0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c4fc601232640c3568b0e1e65604977d5c890a51f3b3b61db8a122ee2875e25f
[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" "c4fc601232640c3568b0e1e65604977d5c890a51f3b3b61db8a122ee2875e25f", kill_on_drop: false }`
[INFO] [stderr]    Compiling creep v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "c4fc601232640c3568b0e1e65604977d5c890a51f3b3b61db8a122ee2875e25f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4fc601232640c3568b0e1e65604977d5c890a51f3b3b61db8a122ee2875e25f", kill_on_drop: false }`
[INFO] [stdout] c4fc601232640c3568b0e1e65604977d5c890a51f3b3b61db8a122ee2875e25f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 679ae5c6ab332c520248b287bef013f06fa1fbd93c4e58b130892ef66ca88dd9
[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" "679ae5c6ab332c520248b287bef013f06fa1fbd93c4e58b130892ef66ca88dd9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/creep-3ccd80618558fdfb
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests creep
[INFO] [stdout] test tests::should_insert_and_get_back_value_reference ... ok
[INFO] [stdout] test tests::should_get_none_on_wrong_type ... ok
[INFO] [stdout] test tests::should_able_to_insert_new_type ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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" "679ae5c6ab332c520248b287bef013f06fa1fbd93c4e58b130892ef66ca88dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "679ae5c6ab332c520248b287bef013f06fa1fbd93c4e58b130892ef66ca88dd9", kill_on_drop: false }`
[INFO] [stdout] 679ae5c6ab332c520248b287bef013f06fa1fbd93c4e58b130892ef66ca88dd9