[INFO] cloning repository https://github.com/Vest/synacor-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Vest/synacor-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVest%2Fsynacor-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVest%2Fsynacor-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2b21aef896049dc13de8599c72781788c21fd36
[INFO] checking Vest/synacor-vm against try#0bdee9e879c87b7211d316e9152109cfd46c576b for pr-150097
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVest%2Fsynacor-vm" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Vest/synacor-vm
[INFO] finished tweaking git repo https://github.com/Vest/synacor-vm
[INFO] tweaked toml for git repo https://github.com/Vest/synacor-vm written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Vest/synacor-vm on toolchain 0bdee9e879c87b7211d316e9152109cfd46c576b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Vest/synacor-vm 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" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking Vest/synacor-vm against try#0bdee9e879c87b7211d316e9152109cfd46c576b for pr-150097
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVest%2Fsynacor-vm" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Vest/synacor-vm
[INFO] finished tweaking git repo https://github.com/Vest/synacor-vm
[INFO] tweaked toml for git repo https://github.com/Vest/synacor-vm written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Vest/synacor-vm on toolchain 0bdee9e879c87b7211d316e9152109cfd46c576b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Vest/synacor-vm 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" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "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 thread_local v1.1.2
[INFO] [stderr]   Downloaded env_logger v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e23b9c55562ba37501bdcb817a54a128d80791068415b281d95e20dde8f60763
[INFO] running `Command { std: "docker" "start" "-a" "e23b9c55562ba37501bdcb817a54a128d80791068415b281d95e20dde8f60763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e23b9c55562ba37501bdcb817a54a128d80791068415b281d95e20dde8f60763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23b9c55562ba37501bdcb817a54a128d80791068415b281d95e20dde8f60763", kill_on_drop: false }`
[INFO] [stdout] e23b9c55562ba37501bdcb817a54a128d80791068415b281d95e20dde8f60763
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5722d67f072bff57bd44726e9155c2f83b5d1d7576eab11028be6d0c52868b01
[INFO] running `Command { std: "docker" "start" "-a" "5722d67f072bff57bd44726e9155c2f83b5d1d7576eab11028be6d0c52868b01", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking synacor-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/vm.rs:16:20
[INFO] [stdout]    |
[INFO] [stdout] 16 |     CannotLoadFile(String),
[INFO] [stdout]    |     -------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VirtualMachineError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -     CannotLoadFile(String),
[INFO] [stdout] 16 +     CannotLoadFile(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/mem.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |     DataIsTooLarge(usize),
[INFO] [stdout]   |     -------------- ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 4 -     DataIsTooLarge(usize),
[INFO] [stdout] 4 +     DataIsTooLarge(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/mem.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |     OverflowAddress(u16),
[INFO] [stdout]   |     --------------- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     OverflowAddress(u16),
[INFO] [stdout] 5 +     OverflowAddress(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_value` is never used
[INFO] [stdout]   --> src/mem.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Memory {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn set_value(&mut self, address: u16, value: u16) -> Result<u16, MemoryError> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cpu.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 |     OverflowAddress(u16),
[INFO] [stdout]    |     --------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CPUError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     OverflowAddress(u16),
[INFO] [stdout] 10 +     OverflowAddress(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cpu.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     OverflowRegister(u8),
[INFO] [stdout]    |     ---------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CPUError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     OverflowRegister(u8),
[INFO] [stdout] 11 +     OverflowRegister(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `opcode` and `address` are never read
[INFO] [stdout]   --> src/cpu.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 |     UnknownOpCode { opcode: u16, address: u16 },
[INFO] [stdout]    |     -------------   ^^^^^^       ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CPUError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:430:13
[INFO] [stdout]     |
[INFO] [stdout] 430 |             self.set_value_in_address(raw_a, c as u16);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 430 |             let _ = self.set_value_in_address(raw_a, c as u16);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:432:13
[INFO] [stdout]     |
[INFO] [stdout] 432 |             self.set_value_in_address(raw_a, 0);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 432 |             let _ = self.set_value_in_address(raw_a, 0);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `opcode` and `address` are never read
[INFO] [stdout]   --> src/cpu.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 |     UnknownOpCode { opcode: u16, address: u16 },
[INFO] [stdout]    |     -------------   ^^^^^^       ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CPUError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:430:13
[INFO] [stdout]     |
[INFO] [stdout] 430 |             self.set_value_in_address(raw_a, c as u16);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 430 |             let _ = self.set_value_in_address(raw_a, c as u16);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:432:13
[INFO] [stdout]     |
[INFO] [stdout] 432 |             self.set_value_in_address(raw_a, 0);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 432 |             let _ = self.set_value_in_address(raw_a, 0);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "5722d67f072bff57bd44726e9155c2f83b5d1d7576eab11028be6d0c52868b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5722d67f072bff57bd44726e9155c2f83b5d1d7576eab11028be6d0c52868b01", kill_on_drop: false }`
[INFO] [stdout] 5722d67f072bff57bd44726e9155c2f83b5d1d7576eab11028be6d0c52868b01
