[INFO] fetching crate servo_arc 0.1.1...
[INFO] testing servo_arc-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate servo_arc 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate servo_arc 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate servo_arc 0.1.1
[INFO] finished tweaking crates.io crate servo_arc 0.1.1
[INFO] tweaked toml for crates.io crate servo_arc 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 317e779ecc1555e2f45b28e9bb3c38d5d231d0cfcf4754560615c39aff4b4f1f
[INFO] running `Command { std: "docker" "start" "-a" "317e779ecc1555e2f45b28e9bb3c38d5d231d0cfcf4754560615c39aff4b4f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "317e779ecc1555e2f45b28e9bb3c38d5d231d0cfcf4754560615c39aff4b4f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "317e779ecc1555e2f45b28e9bb3c38d5d231d0cfcf4754560615c39aff4b4f1f", kill_on_drop: false }`
[INFO] [stdout] 317e779ecc1555e2f45b28e9bb3c38d5d231d0cfcf4754560615c39aff4b4f1f
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24e1ed8edcf0c93200f99dfe2c708e4863c1c451b30ed71ed27c42be4c28adbf
[INFO] running `Command { std: "docker" "start" "-a" "24e1ed8edcf0c93200f99dfe2c708e4863c1c451b30ed71ed27c42be4c28adbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling servo_arc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:60:47
[INFO] [stdout]     |
[INFO] [stdout] 60  |         let invalid: $container = ::std::mem::uninitialized();
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 203 |         let ptr = (ptr as *const u8).offset(-offset_of!(ArcInner<T>, data));
[INFO] [stdout]     |                                              ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "24e1ed8edcf0c93200f99dfe2c708e4863c1c451b30ed71ed27c42be4c28adbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24e1ed8edcf0c93200f99dfe2c708e4863c1c451b30ed71ed27c42be4c28adbf", kill_on_drop: false }`
[INFO] [stdout] 24e1ed8edcf0c93200f99dfe2c708e4863c1c451b30ed71ed27c42be4c28adbf
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8cff4b76573b8b651fb07cf61b2d4bff836fb87673a41cac00b163632eedd69
[INFO] running `Command { std: "docker" "start" "-a" "d8cff4b76573b8b651fb07cf61b2d4bff836fb87673a41cac00b163632eedd69", kill_on_drop: false }`
[INFO] [stderr]    Compiling servo_arc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:60:47
[INFO] [stdout]     |
[INFO] [stdout] 60  |         let invalid: $container = ::std::mem::uninitialized();
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 203 |         let ptr = (ptr as *const u8).offset(-offset_of!(ArcInner<T>, data));
[INFO] [stdout]     |                                              ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> lib.rs:60:47
[INFO] [stdout]     |
[INFO] [stdout] 60  |         let invalid: $container = ::std::mem::uninitialized();
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 203 |         let ptr = (ptr as *const u8).offset(-offset_of!(ArcInner<T>, data));
[INFO] [stdout]     |                                              ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "d8cff4b76573b8b651fb07cf61b2d4bff836fb87673a41cac00b163632eedd69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8cff4b76573b8b651fb07cf61b2d4bff836fb87673a41cac00b163632eedd69", kill_on_drop: false }`
[INFO] [stdout] d8cff4b76573b8b651fb07cf61b2d4bff836fb87673a41cac00b163632eedd69
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 795303fe8110c6fd6899b6426c66d46de7d67f6831c533d10fb33dfb8e9dc157
[INFO] running `Command { std: "docker" "start" "-a" "795303fe8110c6fd6899b6426c66d46de7d67f6831c533d10fb33dfb8e9dc157", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stderr]    --> lib.rs:60:47
[INFO] [stderr]     |
[INFO] [stderr] 60  |         let invalid: $container = ::std::mem::uninitialized();
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 203 |         let ptr = (ptr as *const u8).offset(-offset_of!(ArcInner<T>, data));
[INFO] [stderr]     |                                              ----------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `servo_arc` (lib) generated 1 warning
[INFO] [stderr] warning: `servo_arc` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/servo_arc-a49f9d54adc1a058)
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests servo_arc
[INFO] [stdout] test tests::slices_and_thin ... 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] [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" "795303fe8110c6fd6899b6426c66d46de7d67f6831c533d10fb33dfb8e9dc157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "795303fe8110c6fd6899b6426c66d46de7d67f6831c533d10fb33dfb8e9dc157", kill_on_drop: false }`
[INFO] [stdout] 795303fe8110c6fd6899b6426c66d46de7d67f6831c533d10fb33dfb8e9dc157