[INFO] fetching crate swasm 0.31.3...
[INFO] checking swasm-0.31.3 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate swasm 0.31.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate swasm 0.31.3 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate swasm 0.31.3
[INFO] finished tweaking crates.io crate swasm 0.31.3
[INFO] tweaked toml for crates.io crate swasm 0.31.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acc54da41b5d3c121137cb2307dfe11e72e0f15f2b99cb85c2d85c875dc5e738
[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" "acc54da41b5d3c121137cb2307dfe11e72e0f15f2b99cb85c2d85c875dc5e738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acc54da41b5d3c121137cb2307dfe11e72e0f15f2b99cb85c2d85c875dc5e738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acc54da41b5d3c121137cb2307dfe11e72e0f15f2b99cb85c2d85c875dc5e738", kill_on_drop: false }`
[INFO] [stdout] acc54da41b5d3c121137cb2307dfe11e72e0f15f2b99cb85c2d85c875dc5e738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d37f93aec7c2b9fc75dddcf9d36f29294420fb0cda760416d1013a2284f5e13
[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" "8d37f93aec7c2b9fc75dddcf9d36f29294420fb0cda760416d1013a2284f5e13", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking swasm v0.31.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `BlockType` is imported redundantly
[INFO] [stdout]     --> src/elements/ops.rs:1128:7
[INFO] [stdout]      |
[INFO] [stdout] 7    |     Uint8, VarUint32, CountedList, BlockType,
[INFO] [stdout]      |                                    --------- the item `BlockType` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 1128 |         use super::BlockType;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BlockType` is imported redundantly
[INFO] [stdout]     --> src/elements/ops.rs:1128:7
[INFO] [stdout]      |
[INFO] [stdout] 7    |     Uint8, VarUint32, CountedList, BlockType,
[INFO] [stdout]      |                                    --------- the item `BlockType` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 1128 |         use super::BlockType;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.61s
[INFO] running `Command { std: "docker" "inspect" "8d37f93aec7c2b9fc75dddcf9d36f29294420fb0cda760416d1013a2284f5e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d37f93aec7c2b9fc75dddcf9d36f29294420fb0cda760416d1013a2284f5e13", kill_on_drop: false }`
[INFO] [stdout] 8d37f93aec7c2b9fc75dddcf9d36f29294420fb0cda760416d1013a2284f5e13