[INFO] fetching crate lc3asm 0.1.2...
[INFO] checking lc3asm-0.1.2 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate lc3asm 0.1.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate lc3asm 0.1.2 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lc3asm 0.1.2
[INFO] finished tweaking crates.io crate lc3asm 0.1.2
[INFO] tweaked toml for crates.io crate lc3asm 0.1.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate lc3asm 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.34
[INFO] [stderr]   Downloaded cc v1.0.40
[INFO] [stderr]   Downloaded regex-syntax v0.6.11
[INFO] [stderr]   Downloaded pest v2.1.1
[INFO] [stderr]   Downloaded pest_generator v2.1.0
[INFO] [stderr]   Downloaded unescape v0.1.0
[INFO] [stderr]   Downloaded regex v1.2.1
[INFO] [stderr]   Downloaded sha-1 v0.8.1
[INFO] [stderr]   Downloaded pest_meta v2.1.1
[INFO] [stderr]   Downloaded bitstream-io v0.8.4
[INFO] [stderr]   Downloaded lc3dbg v1.2.2
[INFO] [stderr]   Downloaded lc3-rs v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+195ad4830e11a544391abe296b146450dea8411b" "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] d033816b18022e31f518a1111a49ab8239ea3dc30d83d63504ee7055bf9a4ec3
[INFO] running `Command { std: "docker" "start" "-a" "d033816b18022e31f518a1111a49ab8239ea3dc30d83d63504ee7055bf9a4ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d033816b18022e31f518a1111a49ab8239ea3dc30d83d63504ee7055bf9a4ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d033816b18022e31f518a1111a49ab8239ea3dc30d83d63504ee7055bf9a4ec3", kill_on_drop: false }`
[INFO] [stdout] d033816b18022e31f518a1111a49ab8239ea3dc30d83d63504ee7055bf9a4ec3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1970f1ba3f116444f4dd1553dd1aa4690f130848e4d4e4b894df635497898c9f
[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" "1970f1ba3f116444f4dd1553dd1aa4690f130848e4d4e4b894df635497898c9f", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking bitstream-io v0.8.4
[INFO] [stderr]     Checking lc3-rs v0.4.3
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking lc3asm v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking lc3dbg v1.2.2
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/symbol_table.rs:49:23
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let (symbols, size, entry) = crate::first_pass(&parsed)?;
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 21.14s
[INFO] running `Command { std: "docker" "inspect" "1970f1ba3f116444f4dd1553dd1aa4690f130848e4d4e4b894df635497898c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1970f1ba3f116444f4dd1553dd1aa4690f130848e4d4e4b894df635497898c9f", kill_on_drop: false }`
[INFO] [stdout] 1970f1ba3f116444f4dd1553dd1aa4690f130848e4d4e4b894df635497898c9f