[INFO] cloning repository https://github.com/thebracket/legion-serialize-bug-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thebracket/legion-serialize-bug-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebracket%2Flegion-serialize-bug-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebracket%2Flegion-serialize-bug-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f07451f51aa64ec4ed4c65cdc943f272f039eda
[INFO] checking thebracket/legion-serialize-bug-demo against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthebracket%2Flegion-serialize-bug-demo" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thebracket/legion-serialize-bug-demo on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thebracket/legion-serialize-bug-demo
[INFO] finished tweaking git repo https://github.com/thebracket/legion-serialize-bug-demo
[INFO] tweaked toml for git repo https://github.com/thebracket/legion-serialize-bug-demo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/thebracket/legion-serialize-bug-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded type-uuid-derive v0.1.2
[INFO] [stderr]   Downloaded type-uuid v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f298842e1e1f7ca9bc11068a4b570ad7b52f4d338e09bb23696b4492fa68306
[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" "6f298842e1e1f7ca9bc11068a4b570ad7b52f4d338e09bb23696b4492fa68306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f298842e1e1f7ca9bc11068a4b570ad7b52f4d338e09bb23696b4492fa68306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f298842e1e1f7ca9bc11068a4b570ad7b52f4d338e09bb23696b4492fa68306", kill_on_drop: false }`
[INFO] [stdout] 6f298842e1e1f7ca9bc11068a4b570ad7b52f4d338e09bb23696b4492fa68306
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03fc5f141b94d58849095b50d4aef0e7fdb57016e9bc0fe27e2f94378162e0da
[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" "03fc5f141b94d58849095b50d4aef0e7fdb57016e9bc0fe27e2f94378162e0da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking cfg-if v0.1.10
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[INFO] [stderr]     Checking lazy_static v1.4.0
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[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking lock_api v0.3.4
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[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking bit-set v0.5.2
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[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling type-uuid-derive v0.1.2
[INFO] [stderr]     Checking type-uuid v0.1.2
[INFO] [stderr]     Checking tracing v0.1.16
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking legion-core v0.2.4 (https://github.com/TomGillen/legion#80a3d15c)
[INFO] [stderr]     Checking ron v0.6.0
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking legion-systems v0.2.4 (https://github.com/TomGillen/legion#80a3d15c)
[INFO] [stderr]     Checking legion v0.2.4 (https://github.com/TomGillen/legion#80a3d15c)
[INFO] [stderr]     Checking legionbug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:327:30
[INFO] [stdout]     |
[INFO] [stdout] 327 |             let mut erased = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `<dyn erased_serde::Deserializer>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:343:30
[INFO] [stdout]     |
[INFO] [stdout] 343 |             let mut erased = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `<dyn erased_serde::Deserializer>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:327:30
[INFO] [stdout]     |
[INFO] [stdout] 327 |             let mut erased = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `<dyn erased_serde::Deserializer>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:343:30
[INFO] [stdout]     |
[INFO] [stdout] 343 |             let mut erased = erased_serde::Deserializer::erase(deserializer);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `<dyn erased_serde::Deserializer>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "03fc5f141b94d58849095b50d4aef0e7fdb57016e9bc0fe27e2f94378162e0da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03fc5f141b94d58849095b50d4aef0e7fdb57016e9bc0fe27e2f94378162e0da", kill_on_drop: false }`
[INFO] [stdout] 03fc5f141b94d58849095b50d4aef0e7fdb57016e9bc0fe27e2f94378162e0da