[INFO] fetching crate gc-sequence 0.2.0...
[INFO] testing gc-sequence-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate gc-sequence 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate gc-sequence 0.2.0 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 gc-sequence 0.2.0
[INFO] finished tweaking crates.io crate gc-sequence 0.2.0
[INFO] tweaked toml for crates.io crate gc-sequence 0.2.0 written to /workspace/builds/worker-3/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 gc-arena-derive v0.2.0
[INFO] [stderr]   Downloaded gc-arena v0.2.0
[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" "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] 4be7a146bab2701bb4a479a9b5ac042d0412bd401f9c87660e8c36a707547c90
[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" "4be7a146bab2701bb4a479a9b5ac042d0412bd401f9c87660e8c36a707547c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4be7a146bab2701bb4a479a9b5ac042d0412bd401f9c87660e8c36a707547c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4be7a146bab2701bb4a479a9b5ac042d0412bd401f9c87660e8c36a707547c90", kill_on_drop: false }`
[INFO] [stdout] 4be7a146bab2701bb4a479a9b5ac042d0412bd401f9c87660e8c36a707547c90
[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=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 047b4e226a2a1b1d7e2bd21d94bbb41580d0a43b0b1de13bede0d9a92c701f9d
[INFO] running `Command { std: "docker" "start" "-a" "047b4e226a2a1b1d7e2bd21d94bbb41580d0a43b0b1de13bede0d9a92c701f9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling gc-arena-derive v0.2.0
[INFO] [stderr]    Compiling gc-arena v0.2.0
[INFO] [stderr]    Compiling gc-sequence v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.51s
[INFO] running `Command { std: "docker" "inspect" "047b4e226a2a1b1d7e2bd21d94bbb41580d0a43b0b1de13bede0d9a92c701f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "047b4e226a2a1b1d7e2bd21d94bbb41580d0a43b0b1de13bede0d9a92c701f9d", kill_on_drop: false }`
[INFO] [stdout] 047b4e226a2a1b1d7e2bd21d94bbb41580d0a43b0b1de13bede0d9a92c701f9d
[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=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] bc3d5d53a29307f3bc87653d78b62d94db4fc3965f4d3fc26e6cc9f7972b9cab
[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" "bc3d5d53a29307f3bc87653d78b62d94db4fc3965f4d3fc26e6cc9f7972b9cab", kill_on_drop: false }`
[INFO] [stderr]    Compiling gc-sequence v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "bc3d5d53a29307f3bc87653d78b62d94db4fc3965f4d3fc26e6cc9f7972b9cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc3d5d53a29307f3bc87653d78b62d94db4fc3965f4d3fc26e6cc9f7972b9cab", kill_on_drop: false }`
[INFO] [stdout] bc3d5d53a29307f3bc87653d78b62d94db4fc3965f4d3fc26e6cc9f7972b9cab
[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=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] 9ce714827317760ed9f3929564119d840d9142b94bd5c5464b30abab624717de
[INFO] running `Command { std: "docker" "start" "-a" "9ce714827317760ed9f3929564119d840d9142b94bd5c5464b30abab624717de", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gc_sequence-893dc89fd92d918f
[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] [stderr]      Running /opt/rustwide/target/debug/deps/tests-9bd724f6d13786d1
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_sequencer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gc-sequence
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/sequencable_arena.rs - make_sequencable_arena (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9ce714827317760ed9f3929564119d840d9142b94bd5c5464b30abab624717de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ce714827317760ed9f3929564119d840d9142b94bd5c5464b30abab624717de", kill_on_drop: false }`
[INFO] [stdout] 9ce714827317760ed9f3929564119d840d9142b94bd5c5464b30abab624717de