[INFO] updating cached repository nskillen/synacor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nskillen/synacor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nskillen/synacor" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/nskillen/synacor"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/nskillen/synacor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nskillen/synacor" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/nskillen/synacor"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/nskillen/synacor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce9c2fea733cf3dd802091ffd0c6ddc9244e3efc
[INFO] sha for GitHub repo nskillen/synacor: ce9c2fea733cf3dd802091ffd0c6ddc9244e3efc
[INFO] validating manifest of nskillen/synacor on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nskillen/synacor on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nskillen/synacor
[INFO] finished frobbing nskillen/synacor
[INFO] frobbed toml for nskillen/synacor written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/nskillen/synacor/Cargo.toml
[INFO] started frobbing nskillen/synacor
[INFO] finished frobbing nskillen/synacor
[INFO] frobbed toml for nskillen/synacor written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/nskillen/synacor/Cargo.toml
[INFO] crate nskillen/synacor already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nskillen/synacor against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-0/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/nskillen/synacor:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5570fb1c2f50575f6bc04e0886efee88e8641153b8692d2d301392cdd71b4ab5
[INFO] running `"docker" "start" "-a" "5570fb1c2f50575f6bc04e0886efee88e8641153b8692d2d301392cdd71b4ab5"`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]     Checking synacor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `TokenType`
[INFO] [stderr]  --> src/assembler/disassembly_steps.rs:3:35
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::types::{Argument,Token,TokenType};
[INFO] [stderr]   |                                   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/assembly_steps.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | /     lazy_static! {
[INFO] [stderr] 10 | |         static ref comment_rx: Regex = Regex::new(r"^\s*;.*$").unwrap();
[INFO] [stderr] 11 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/assembly_steps.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     lazy_static! {
[INFO] [stderr] 25 | |         static ref instruction_rx: Regex = Regex::new(r"(?x)
[INFO] [stderr] 26 | |             ^\s*
[INFO] [stderr] 27 | |             (?:(?P<label>[\w_]+):\s)?\s*
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |         static ref label_only_rx: Regex = Regex::new(r"^\s*([a-z][\w_]+):\s*$").unwrap();
[INFO] [stderr] 41 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/assembly_steps.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     lazy_static! {
[INFO] [stderr] 25 | |         static ref instruction_rx: Regex = Regex::new(r"(?x)
[INFO] [stderr] 26 | |             ^\s*
[INFO] [stderr] 27 | |             (?:(?P<label>[\w_]+):\s)?\s*
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |         static ref label_only_rx: Regex = Regex::new(r"^\s*([a-z][\w_]+):\s*$").unwrap();
[INFO] [stderr] 41 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/assembly_steps.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     lazy_static! {
[INFO] [stderr] 25 | |         static ref instruction_rx: Regex = Regex::new(r"(?x)
[INFO] [stderr] 26 | |             ^\s*
[INFO] [stderr] 27 | |             (?:(?P<label>[\w_]+):\s)?\s*
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |         static ref label_only_rx: Regex = Regex::new(r"^\s*([a-z][\w_]+):\s*$").unwrap();
[INFO] [stderr] 41 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenType`
[INFO] [stderr]  --> src/assembler/disassembly_steps.rs:3:35
[INFO] [stderr]   |
[INFO] [stderr] 3 | use super::types::{Argument,Token,TokenType};
[INFO] [stderr]   |                                   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/assembly_steps.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | /     lazy_static! {
[INFO] [stderr] 10 | |         static ref comment_rx: Regex = Regex::new(r"^\s*;.*$").unwrap();
[INFO] [stderr] 11 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/assembly_steps.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     lazy_static! {
[INFO] [stderr] 25 | |         static ref instruction_rx: Regex = Regex::new(r"(?x)
[INFO] [stderr] 26 | |             ^\s*
[INFO] [stderr] 27 | |             (?:(?P<label>[\w_]+):\s)?\s*
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |         static ref label_only_rx: Regex = Regex::new(r"^\s*([a-z][\w_]+):\s*$").unwrap();
[INFO] [stderr] 41 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/assembly_steps.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     lazy_static! {
[INFO] [stderr] 25 | |         static ref instruction_rx: Regex = Regex::new(r"(?x)
[INFO] [stderr] 26 | |             ^\s*
[INFO] [stderr] 27 | |             (?:(?P<label>[\w_]+):\s)?\s*
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |         static ref label_only_rx: Regex = Regex::new(r"^\s*([a-z][\w_]+):\s*$").unwrap();
[INFO] [stderr] 41 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/assembly_steps.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     lazy_static! {
[INFO] [stderr] 25 | |         static ref instruction_rx: Regex = Regex::new(r"(?x)
[INFO] [stderr] 26 | |             ^\s*
[INFO] [stderr] 27 | |             (?:(?P<label>[\w_]+):\s)?\s*
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |         static ref label_only_rx: Regex = Regex::new(r"^\s*([a-z][\w_]+):\s*$").unwrap();
[INFO] [stderr] 41 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/assembler/types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         lazy_static! {
[INFO] [stderr] 29 | |             static ref numeric_rx: Regex  = Regex::new(r"^#(\d+)$").unwrap();
[INFO] [stderr] 30 | |             static ref register_rx: Regex = Regex::new(r"^r(\d)$").unwrap();
[INFO] [stderr] 31 | |             static ref rpointer_rx: Regex = Regex::new(r"^\[r(\d)\]$").unwrap();
[INFO] [stderr] 32 | |             static ref mpointer_rx: Regex = Regex::new(r"^\[(\d+)\]$").unwrap();
[INFO] [stderr] 33 | |             static ref label_rx: Regex = Regex::new(r"^([a-z][\w_]*):?$").unwrap();
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/assembler/disassembly_steps.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     panic!("Decoded to tokens:\n{:?}", tokens);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/assembler/disassembly_steps.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     panic!("Decoded to tokens:\n{:?}", tokens);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filename`
[INFO] [stderr]   --> src/main.rs:81:18
[INFO] [stderr]    |
[INFO] [stderr] 81 |             Some(filename) => {
[INFO] [stderr]    |                  ^^^^^^^^ help: consider prefixing with an underscore: `_filename`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filename`
[INFO] [stderr]   --> src/main.rs:81:18
[INFO] [stderr]    |
[INFO] [stderr] 81 |             Some(filename) => {
[INFO] [stderr]    |                  ^^^^^^^^ help: consider prefixing with an underscore: `_filename`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0515]: cannot return value referencing temporary value
[INFO] [stderr]   --> src/assembler/types.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |             label: Some(&format!("dd{}", num_dd_tokens)[..]),
[INFO] [stderr]    |                          ------------------------------ temporary value created here
[INFO] [stderr] ...
[INFO] [stderr] 82 |         t
[INFO] [stderr]    |         ^ returns a value referencing data owned by the current function
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0515]: cannot return value referencing temporary value
[INFO] [stderr]   --> src/assembler/types.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |             label: Some(&format!("dd{}", num_dd_tokens)[..]),
[INFO] [stderr]    |                          ------------------------------ temporary value created here
[INFO] [stderr] ...
[INFO] [stderr] 82 |         t
[INFO] [stderr]    |         ^ returns a value referencing data owned by the current function
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0133]: use of mutable static is unsafe and requires unsafe function or block
[INFO] [stderr]   --> src/assembler/types.rs:74:42
[INFO] [stderr]    |
[INFO] [stderr] 74 |             label: Some(&format!("dd{}", num_dd_tokens)[..]),
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^ use of mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stderr] 
[INFO] [stderr] error[E0133]: use of mutable static is unsafe and requires unsafe function or block
[INFO] [stderr]   --> src/assembler/types.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |         num_dd_tokens += 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ use of mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0133, E0515.
[INFO] [stderr] For more information about an error, try `rustc --explain E0133`.
[INFO] [stderr] error: Could not compile `synacor`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0133]: use of mutable static is unsafe and requires unsafe function or block
[INFO] [stderr]   --> src/assembler/types.rs:74:42
[INFO] [stderr]    |
[INFO] [stderr] 74 |             label: Some(&format!("dd{}", num_dd_tokens)[..]),
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^ use of mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stderr] 
[INFO] [stderr] error[E0133]: use of mutable static is unsafe and requires unsafe function or block
[INFO] [stderr]   --> src/assembler/types.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |         num_dd_tokens += 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ use of mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0133, E0515.
[INFO] [stderr] For more information about an error, try `rustc --explain E0133`.
[INFO] [stderr] error: Could not compile `synacor`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5570fb1c2f50575f6bc04e0886efee88e8641153b8692d2d301392cdd71b4ab5"`
[INFO] running `"docker" "rm" "-f" "5570fb1c2f50575f6bc04e0886efee88e8641153b8692d2d301392cdd71b4ab5"`
[INFO] [stdout] 5570fb1c2f50575f6bc04e0886efee88e8641153b8692d2d301392cdd71b4ab5