[INFO] fetching crate ice-threads 0.1.0...
[INFO] testing ice-threads-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate ice-threads 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ice-threads 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ice-threads 0.1.0
[INFO] finished tweaking crates.io crate ice-threads 0.1.0
[INFO] tweaked toml for crates.io crate ice-threads 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cc7a0d4e92b6041f9f01c78088edc10c76834c0091cfc61b201153891552c28
[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" "2cc7a0d4e92b6041f9f01c78088edc10c76834c0091cfc61b201153891552c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cc7a0d4e92b6041f9f01c78088edc10c76834c0091cfc61b201153891552c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cc7a0d4e92b6041f9f01c78088edc10c76834c0091cfc61b201153891552c28", kill_on_drop: false }`
[INFO] [stdout] 2cc7a0d4e92b6041f9f01c78088edc10c76834c0091cfc61b201153891552c28
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fff58b3a25237edcb4377be59782981846b8aef7e035b9ddfacd2fe34619e69
[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" "4fff58b3a25237edcb4377be59782981846b8aef7e035b9ddfacd2fe34619e69", kill_on_drop: false }`
[INFO] [stderr]    Compiling ice-threads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/ice.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 - pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stdout] 5 + pub(crate) struct Ice(Box<dyn Meltable + Send + 'static>);
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "4fff58b3a25237edcb4377be59782981846b8aef7e035b9ddfacd2fe34619e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fff58b3a25237edcb4377be59782981846b8aef7e035b9ddfacd2fe34619e69", kill_on_drop: false }`
[INFO] [stdout] 4fff58b3a25237edcb4377be59782981846b8aef7e035b9ddfacd2fe34619e69
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f35011e8db8e8be7a1e260884a4b0cec73ca0ef97fd9205ca0e46b3d8dcddcc0
[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" "f35011e8db8e8be7a1e260884a4b0cec73ca0ef97fd9205ca0e46b3d8dcddcc0", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/ice.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 - pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stdout] 5 + pub(crate) struct Ice(Box<dyn Meltable + Send + 'static>);
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ice-threads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/ice.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 - pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stdout] 5 + pub(crate) struct Ice(Box<dyn Meltable + Send + 'static>);
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "f35011e8db8e8be7a1e260884a4b0cec73ca0ef97fd9205ca0e46b3d8dcddcc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f35011e8db8e8be7a1e260884a4b0cec73ca0ef97fd9205ca0e46b3d8dcddcc0", kill_on_drop: false }`
[INFO] [stdout] f35011e8db8e8be7a1e260884a4b0cec73ca0ef97fd9205ca0e46b3d8dcddcc0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0912f1f69d15c8dba6ea3790064f60dc085b56197ea1f5b68756ff3c0925098b
[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" "0912f1f69d15c8dba6ea3790064f60dc085b56197ea1f5b68756ff3c0925098b", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ice.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 5 - pub(crate) struct Ice(Box<Meltable + Send + 'static>);
[INFO] [stderr] 5 + pub(crate) struct Ice(Box<dyn Meltable + Send + 'static>);
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: `ice-threads` (lib) generated 1 warning
[INFO] [stderr] warning: `ice-threads` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ice_threads-03d1c0b6409dd95a)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests ice-threads
[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 3 tests
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/lib.rs - (line 66) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0912f1f69d15c8dba6ea3790064f60dc085b56197ea1f5b68756ff3c0925098b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0912f1f69d15c8dba6ea3790064f60dc085b56197ea1f5b68756ff3c0925098b", kill_on_drop: false }`
[INFO] [stdout] 0912f1f69d15c8dba6ea3790064f60dc085b56197ea1f5b68756ff3c0925098b