[INFO] fetching crate graviton 0.6.0...
[INFO] testing graviton-0.6.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate graviton 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate graviton 0.6.0 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 graviton 0.6.0
[INFO] finished tweaking crates.io crate graviton 0.6.0
[INFO] tweaked toml for crates.io crate graviton 0.6.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate graviton 0.6.0 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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cdb9e2374663a41f99bb5d338d05aa345635a0e96e43a8e4e55cd87593569603
[INFO] running `Command { std: "docker" "start" "-a" "cdb9e2374663a41f99bb5d338d05aa345635a0e96e43a8e4e55cd87593569603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdb9e2374663a41f99bb5d338d05aa345635a0e96e43a8e4e55cd87593569603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb9e2374663a41f99bb5d338d05aa345635a0e96e43a8e4e55cd87593569603", kill_on_drop: false }`
[INFO] [stdout] cdb9e2374663a41f99bb5d338d05aa345635a0e96e43a8e4e55cd87593569603
[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] [stdout] 10cb99ff5a67fef479b465d09a4a7c43e1db0fdba3061ac3a81681538b7aef4c
[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" "10cb99ff5a67fef479b465d09a4a7c43e1db0fdba3061ac3a81681538b7aef4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling cranelift-entity v0.56.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.56.0
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling downcast-rs v1.1.1
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling rmp v0.8.9
[INFO] [stderr]    Compiling cranelift-bforest v0.56.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.56.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling inventory-impl v0.1.5
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling typetag-impl v0.1.4
[INFO] [stderr]    Compiling scroll v0.10.1
[INFO] [stderr]    Compiling inventory v0.1.5
[INFO] [stderr]    Compiling goblin v0.1.3
[INFO] [stderr]    Compiling cranelift-codegen v0.56.0
[INFO] [stderr]    Compiling thiserror v1.0.9
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling graviton_core v0.6.0
[INFO] [stderr]    Compiling string-interner v0.7.1
[INFO] [stderr]    Compiling erased-serde v0.3.10
[INFO] [stderr]    Compiling rmp-serde v0.14.0
[INFO] [stderr]    Compiling faerie v0.14.0
[INFO] [stderr]    Compiling graviton_ast v0.6.0
[INFO] [stderr]    Compiling typetag v0.1.4
[INFO] [stderr]    Compiling graviton_frontend v0.6.0
[INFO] [stderr]    Compiling cranelift-frontend v0.56.0
[INFO] [stderr]    Compiling cranelift-module v0.56.0
[INFO] [stderr]    Compiling cranelift-native v0.56.0
[INFO] [stderr]    Compiling cranelift-faerie v0.56.0
[INFO] [stderr]    Compiling cranelift v0.56.0
[INFO] [stderr]    Compiling graviton_backend v0.6.0
[INFO] [stderr]    Compiling graviton v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "10cb99ff5a67fef479b465d09a4a7c43e1db0fdba3061ac3a81681538b7aef4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10cb99ff5a67fef479b465d09a4a7c43e1db0fdba3061ac3a81681538b7aef4c", kill_on_drop: false }`
[INFO] [stdout] 10cb99ff5a67fef479b465d09a4a7c43e1db0fdba3061ac3a81681538b7aef4c
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] db48492830a754a1873bb126df791a97b54cc8e9cec538eec40252bbc3f3b5c3
[INFO] running `Command { std: "docker" "start" "-a" "db48492830a754a1873bb126df791a97b54cc8e9cec538eec40252bbc3f3b5c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling graviton v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "db48492830a754a1873bb126df791a97b54cc8e9cec538eec40252bbc3f3b5c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db48492830a754a1873bb126df791a97b54cc8e9cec538eec40252bbc3f3b5c3", kill_on_drop: false }`
[INFO] [stdout] db48492830a754a1873bb126df791a97b54cc8e9cec538eec40252bbc3f3b5c3
[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] 0c136987d08a6057ce60a3223cd8f744d06f93b4387a0377718d2b8ee172497f
[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" "0c136987d08a6057ce60a3223cd8f744d06f93b4387a0377718d2b8ee172497f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graviton-75c5b0ff57b94aa1
[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/graviton-053f6302f6a97267
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests graviton
[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" "0c136987d08a6057ce60a3223cd8f744d06f93b4387a0377718d2b8ee172497f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c136987d08a6057ce60a3223cd8f744d06f93b4387a0377718d2b8ee172497f", kill_on_drop: false }`
[INFO] [stdout] 0c136987d08a6057ce60a3223cd8f744d06f93b4387a0377718d2b8ee172497f