[INFO] cloning repository https://github.com/CITGuru/brainfuckrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CITGuru/brainfuckrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCITGuru%2Fbrainfuckrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCITGuru%2Fbrainfuckrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db813b945b0073641ca022d8e8a716e013c866e4
[INFO] building CITGuru/brainfuckrs against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCITGuru%2Fbrainfuckrs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CITGuru/brainfuckrs on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CITGuru/brainfuckrs
[INFO] finished tweaking git repo https://github.com/CITGuru/brainfuckrs
[INFO] tweaked toml for git repo https://github.com/CITGuru/brainfuckrs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/CITGuru/brainfuckrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ace5163534c8c5a7b665d97d74dc84cfa6558fd55b11bae6a8adb3e2191d5ebc
[INFO] running `Command { std: "docker" "start" "-a" "ace5163534c8c5a7b665d97d74dc84cfa6558fd55b11bae6a8adb3e2191d5ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ace5163534c8c5a7b665d97d74dc84cfa6558fd55b11bae6a8adb3e2191d5ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ace5163534c8c5a7b665d97d74dc84cfa6558fd55b11bae6a8adb3e2191d5ebc", kill_on_drop: false }`
[INFO] [stdout] ace5163534c8c5a7b665d97d74dc84cfa6558fd55b11bae6a8adb3e2191d5ebc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9da36040bad5ef3ddc829ab68e152528604b0d4b75e6f09940a0841e31fcc814
[INFO] running `Command { std: "docker" "start" "-a" "9da36040bad5ef3ddc829ab68e152528604b0d4b75e6f09940a0841e31fcc814", kill_on_drop: false }`
[INFO] [stderr]    Compiling brainfuckrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `jmp_pc` is never read
[INFO] [stdout]   --> src/compiler.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut jmp_pc: u16 = 0;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/compiler.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     execute_bf(&program);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let _ = execute_bf(&program);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "9da36040bad5ef3ddc829ab68e152528604b0d4b75e6f09940a0841e31fcc814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da36040bad5ef3ddc829ab68e152528604b0d4b75e6f09940a0841e31fcc814", kill_on_drop: false }`
[INFO] [stdout] 9da36040bad5ef3ddc829ab68e152528604b0d4b75e6f09940a0841e31fcc814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0b84a876d79dc86433b9f08247c1e2806c89153dd76e84347903806593699e1
[INFO] running `Command { std: "docker" "start" "-a" "d0b84a876d79dc86433b9f08247c1e2806c89153dd76e84347903806593699e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling brainfuckrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `jmp_pc` is never read
[INFO] [stdout]   --> src/compiler.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut jmp_pc: u16 = 0;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/compiler.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     execute_bf(&program);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let _ = execute_bf(&program);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d0b84a876d79dc86433b9f08247c1e2806c89153dd76e84347903806593699e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b84a876d79dc86433b9f08247c1e2806c89153dd76e84347903806593699e1", kill_on_drop: false }`
[INFO] [stdout] d0b84a876d79dc86433b9f08247c1e2806c89153dd76e84347903806593699e1
