[INFO] cloning repository https://github.com/andpago/tanks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andpago/tanks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandpago%2Ftanks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandpago%2Ftanks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7518c5fe8da4934ed5db1e2189313c9155d14d0
[INFO] building andpago/tanks against try#14accda7ba2c586835d15379a621955d9f047371 for pr-103610
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandpago%2Ftanks" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andpago/tanks on toolchain 14accda7ba2c586835d15379a621955d9f047371
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andpago/tanks
[INFO] finished tweaking git repo https://github.com/andpago/tanks
[INFO] tweaked toml for git repo https://github.com/andpago/tanks written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/andpago/tanks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11fb9d29d645da542fb29536737d00ea7c76cfed2fb10a61660cee56d2fce462
[INFO] running `Command { std: "docker" "start" "-a" "11fb9d29d645da542fb29536737d00ea7c76cfed2fb10a61660cee56d2fce462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11fb9d29d645da542fb29536737d00ea7c76cfed2fb10a61660cee56d2fce462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11fb9d29d645da542fb29536737d00ea7c76cfed2fb10a61660cee56d2fce462", kill_on_drop: false }`
[INFO] [stdout] 11fb9d29d645da542fb29536737d00ea7c76cfed2fb10a61660cee56d2fce462
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTDOCFLAGS=--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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d7d62b2229fd32d2a5a2ae46856ca5bd87fb0174a9fd629fa71f9aad8686266
[INFO] running `Command { std: "docker" "start" "-a" "4d7d62b2229fd32d2a5a2ae46856ca5bd87fb0174a9fd629fa71f9aad8686266", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m v0.6.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling vcell v0.1.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.3
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling as-slice v0.1.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]    Compiling aligned v0.3.1
[INFO] [stderr]    Compiling tanks-vm v0.1.0 (/opt/rustwide/workdir/src/vm)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/vm/src/lib.rs:255:25
[INFO] [stdout]     |
[INFO] [stdout] 255 |                     Err(e) => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[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]    Compiling vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "4d7d62b2229fd32d2a5a2ae46856ca5bd87fb0174a9fd629fa71f9aad8686266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7d62b2229fd32d2a5a2ae46856ca5bd87fb0174a9fd629fa71f9aad8686266", kill_on_drop: false }`
[INFO] [stdout] 4d7d62b2229fd32d2a5a2ae46856ca5bd87fb0174a9fd629fa71f9aad8686266
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTDOCFLAGS=--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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8597bead6e7419ada6a443b4928a47e3fc00038f0132f8d4548ed35721b60059
[INFO] running `Command { std: "docker" "start" "-a" "8597bead6e7419ada6a443b4928a47e3fc00038f0132f8d4548ed35721b60059", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "8597bead6e7419ada6a443b4928a47e3fc00038f0132f8d4548ed35721b60059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8597bead6e7419ada6a443b4928a47e3fc00038f0132f8d4548ed35721b60059", kill_on_drop: false }`
[INFO] [stdout] 8597bead6e7419ada6a443b4928a47e3fc00038f0132f8d4548ed35721b60059