[INFO] cloning repository https://github.com/ut-utp/assembler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ut-utp/assembler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fut-utp%2Fassembler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fut-utp%2Fassembler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0efc5f93c70b4705a3879b1a194f05da16f2e4f
[INFO] checking ut-utp/assembler against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fut-utp%2Fassembler" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ut-utp/assembler on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ut-utp/assembler
[INFO] finished tweaking git repo https://github.com/ut-utp/assembler
[INFO] tweaked toml for git repo https://github.com/ut-utp/assembler written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ut-utp/assembler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-10/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/ut-utp/core`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a8a54b554b01e3d1116c551b0e85db7f806f0de1455fee37b948f62d2710f75
[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" "3a8a54b554b01e3d1116c551b0e85db7f806f0de1455fee37b948f62d2710f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a8a54b554b01e3d1116c551b0e85db7f806f0de1455fee37b948f62d2710f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a8a54b554b01e3d1116c551b0e85db7f806f0de1455fee37b948f62d2710f75", kill_on_drop: false }`
[INFO] [stdout] 3a8a54b554b01e3d1116c551b0e85db7f806f0de1455fee37b948f62d2710f75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d179bf62b82c419bb6e91bfbaf505b7d600ff63061d4091d8dca05a2b15b05d0
[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" "d179bf62b82c419bb6e91bfbaf505b7d600ff63061d4091d8dca05a2b15b05d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking annotate-snippets v0.8.0
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling lc3-macros v0.1.0 (https://github.com/ut-utp/core?branch=master#1e9a83d3)
[INFO] [stderr]     Checking lc3-isa v0.1.0 (https://github.com/ut-utp/core?branch=master#1e9a83d3)
[INFO] [stderr]     Checking lc3-traits v0.1.0 (https://github.com/ut-utp/core?branch=master#1e9a83d3)
[INFO] [stderr]     Checking lc3-baseline-sim v0.1.0 (https://github.com/ut-utp/core?branch=master#1e9a83d3)
[INFO] [stderr]     Checking lc3-shims v0.1.0 (https://github.com/ut-utp/core?branch=master#1e9a83d3)
[INFO] [stderr]     Checking lc3-os v0.1.0 (https://github.com/ut-utp/core?branch=master#1e9a83d3)
[INFO] [stderr] error: could not compile `lc3-os`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name lc3_os --edition=2018 /opt/rustwide/cargo-home/git/checkouts/core-00a00336878d7416/1e9a83d/os/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=8a771c43eb6c9f49 -C extra-filename=-8a771c43eb6c9f49 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-df97b860f7a76404.rmeta --extern lc3_baseline_sim=/opt/rustwide/target/debug/deps/liblc3_baseline_sim-2a916befdff48d66.rmeta --extern lc3_isa=/opt/rustwide/target/debug/deps/liblc3_isa-493e870009f5d1ae.rmeta --extern lc3_macros=/opt/rustwide/target/debug/deps/liblc3_macros-7e3e533ea0f27f8f.so --extern lc3_shims=/opt/rustwide/target/debug/deps/liblc3_shims-c0c81e5672f6cf73.rmeta --extern lc3_traits=/opt/rustwide/target/debug/deps/liblc3_traits-0139bade5a989373.rmeta --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-007ab24b5dcce8b7.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "d179bf62b82c419bb6e91bfbaf505b7d600ff63061d4091d8dca05a2b15b05d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d179bf62b82c419bb6e91bfbaf505b7d600ff63061d4091d8dca05a2b15b05d0", kill_on_drop: false }`
[INFO] [stdout] d179bf62b82c419bb6e91bfbaf505b7d600ff63061d4091d8dca05a2b15b05d0