[INFO] fetching crate lightbeam 0.22.0...
[INFO] checking lightbeam-0.22.0 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate lightbeam 0.22.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate lightbeam 0.22.0 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lightbeam 0.22.0
[INFO] finished tweaking crates.io crate lightbeam 0.22.0
[INFO] tweaked toml for crates.io crate lightbeam 0.22.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate lightbeam 0.22.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v1.6.0
[INFO] [stderr]   Downloaded cranelift-entity v0.69.0
[INFO] [stderr]   Downloaded cranelift-bforest v0.69.0
[INFO] [stderr]   Downloaded anyhow v1.0.37
[INFO] [stderr]   Downloaded capstone v0.7.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.69.0
[INFO] [stderr]   Downloaded leb128 v0.2.4
[INFO] [stderr]   Downloaded iter-enum v0.2.7
[INFO] [stderr]   Downloaded wasmparser v0.71.0
[INFO] [stderr]   Downloaded wast v30.0.0
[INFO] [stderr]   Downloaded wat v1.0.31
[INFO] [stderr]   Downloaded regalloc v0.0.31
[INFO] [stderr]   Downloaded cranelift-codegen v0.69.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.69.0
[INFO] [stderr]   Downloaded capstone-sys v0.11.0
[INFO] [stderr]   Downloaded target-lexicon v0.11.1
[INFO] [stderr]   Downloaded dynasm v1.0.0
[INFO] [stderr]   Downloaded derive_utils v0.11.2
[INFO] [stderr]   Downloaded dynasmrt v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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] 0251b26f23f9e20a0fa1b5eb8d7e69c66f4c141613499d220410d1975058c06d
[INFO] running `Command { std: "docker" "start" "-a" "0251b26f23f9e20a0fa1b5eb8d7e69c66f4c141613499d220410d1975058c06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0251b26f23f9e20a0fa1b5eb8d7e69c66f4c141613499d220410d1975058c06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0251b26f23f9e20a0fa1b5eb8d7e69c66f4c141613499d220410d1975058c06d", kill_on_drop: false }`
[INFO] [stdout] 0251b26f23f9e20a0fa1b5eb8d7e69c66f4c141613499d220410d1975058c06d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 558cc1c2de9e173582ef1cf2a011728bfe0773879222a2a25ae160cd524e2df7
[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" "558cc1c2de9e173582ef1cf2a011728bfe0773879222a2a25ae160cd524e2df7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cranelift-entity v0.69.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.69.0
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]     Checking smallvec v1.6.0
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]     Checking wasmparser v0.71.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking wast v30.0.0
[INFO] [stderr]     Checking cranelift-bforest v0.69.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.69.0
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling capstone-sys v0.11.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking wat v1.0.31
[INFO] [stderr]    Compiling derive_utils v0.11.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling dynasm v1.0.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling iter-enum v0.2.7
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]    Compiling cranelift-codegen v0.69.0
[INFO] [stderr]     Checking dynasmrt v1.0.0
[INFO] [stderr]     Checking capstone v0.7.0
[INFO] [stderr]     Checking lightbeam v0.22.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `source_loc`
[INFO] [stdout]    --> src/backend.rs:788:5
[INFO] [stdout]     |
[INFO] [stdout] 788 |     source_loc: SourceLoc,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source_loc`
[INFO] [stdout]    --> src/backend.rs:788:5
[INFO] [stdout]     |
[INFO] [stdout] 788 |     source_loc: SourceLoc,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "558cc1c2de9e173582ef1cf2a011728bfe0773879222a2a25ae160cd524e2df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "558cc1c2de9e173582ef1cf2a011728bfe0773879222a2a25ae160cd524e2df7", kill_on_drop: false }`
[INFO] [stdout] 558cc1c2de9e173582ef1cf2a011728bfe0773879222a2a25ae160cd524e2df7