[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 try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fut-utp%2Fassembler" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ut-utp/assembler on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "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-4/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" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded annotate-snippets v0.8.0
[INFO] [stderr]   Downloaded yansi-term v0.1.2
[INFO] [stderr]   Downloaded chrono v0.4.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0cba18e90c69f82c002c28de0b82f7f435b30d78650799564bf2d022775524f
[INFO] running `Command { std: "docker" "start" "-a" "d0cba18e90c69f82c002c28de0b82f7f435b30d78650799564bf2d022775524f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0cba18e90c69f82c002c28de0b82f7f435b30d78650799564bf2d022775524f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0cba18e90c69f82c002c28de0b82f7f435b30d78650799564bf2d022775524f", kill_on_drop: false }`
[INFO] [stdout] d0cba18e90c69f82c002c28de0b82f7f435b30d78650799564bf2d022775524f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e87e07c2dcafd293b99f4f60db3f0d432485bf45011b29d7dc3a6188fcf1bf0f
[INFO] running `Command { std: "docker" "start" "-a" "e87e07c2dcafd293b99f4f60db3f0d432485bf45011b29d7dc3a6188fcf1bf0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking yansi-term v0.1.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking annotate-snippets v0.8.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking chrono v0.4.12
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]    Compiling lc3-macros v0.1.0 (https://github.com/ut-utp/core?branch=master#4816ece0)
[INFO] [stderr]     Checking lc3-isa v0.1.0 (https://github.com/ut-utp/core?branch=master#4816ece0)
[INFO] [stderr]     Checking lc3-traits v0.1.0 (https://github.com/ut-utp/core?branch=master#4816ece0)
[INFO] [stderr]     Checking lc3-shims v0.1.0 (https://github.com/ut-utp/core?branch=master#4816ece0)
[INFO] [stderr]     Checking lc3-baseline-sim v0.1.0 (https://github.com/ut-utp/core?branch=master#4816ece0)
[INFO] [stderr]     Checking lc3-os v0.1.0 (https://github.com/ut-utp/core?branch=master#4816ece0)
[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-00a00336878d7416/4816ece/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=311d39067c13aac4 -C extra-filename=-311d39067c13aac4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-014fb1c6e3e5001a.rmeta --extern lc3_baseline_sim=/opt/rustwide/target/debug/deps/liblc3_baseline_sim-7f1add1e7a0dbc3e.rmeta --extern lc3_isa=/opt/rustwide/target/debug/deps/liblc3_isa-a4f34d07783d8fd3.rmeta --extern lc3_macros=/opt/rustwide/target/debug/deps/liblc3_macros-c711f662fdcd1d14.so --extern lc3_shims=/opt/rustwide/target/debug/deps/liblc3_shims-d4e137f660b3d9ca.rmeta --extern lc3_traits=/opt/rustwide/target/debug/deps/liblc3_traits-f1470826e2ffdecd.rmeta --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-b8fd312976fd468b.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "e87e07c2dcafd293b99f4f60db3f0d432485bf45011b29d7dc3a6188fcf1bf0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87e07c2dcafd293b99f4f60db3f0d432485bf45011b29d7dc3a6188fcf1bf0f", kill_on_drop: false }`
[INFO] [stdout] e87e07c2dcafd293b99f4f60db3f0d432485bf45011b29d7dc3a6188fcf1bf0f