[INFO] cloning repository nskillen/synacor [INFO] running `"git" "clone" "--bare" "git://github.com/nskillen/synacor.git" "work/cache/sources/gh/nskillen/synacor"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/nskillen/synacor'... [INFO] running `"git" "clone" "work/cache/sources/gh/nskillen/synacor" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/nskillen/synacor"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/nskillen/synacor'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/nskillen/synacor" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/nskillen/synacor"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/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#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of nskillen/synacor on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-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-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/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-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/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" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking nskillen/synacor against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-6/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/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" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 7d9c403a312b75ae45bb7f523e677ac635cc0c1b8e60c139e61d404f1a08592a [INFO] running `"docker" "start" "-a" "7d9c403a312b75ae45bb7f523e677ac635cc0c1b8e60c139e61d404f1a08592a"` [INFO] [stderr] Checking getopts v0.2.15 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.15/src/lib.rs:1033:33 [INFO] [stderr] | [INFO] [stderr] 978 | let mut machine = |cont: &mut bool, (i, c): (usize, char)| { [INFO] [stderr] | ---------------------------------------- borrow of `state` occurs here [INFO] [stderr] ... [INFO] [stderr] 982 | state = match (state, whitespace, limit) { [INFO] [stderr] | ----- borrow occurs due to use of `state` in closure [INFO] [stderr] ... [INFO] [stderr] 1033 | while cont && match state { B | C => true, A => false } { [INFO] [stderr] | ^ use of borrowed `state` [INFO] [stderr] 1034 | machine(&mut cont, (fake_i, ' ')); [INFO] [stderr] | ------- borrow later used here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [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: 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: 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: 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] 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] 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[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" "7d9c403a312b75ae45bb7f523e677ac635cc0c1b8e60c139e61d404f1a08592a"` [INFO] running `"docker" "rm" "-f" "7d9c403a312b75ae45bb7f523e677ac635cc0c1b8e60c139e61d404f1a08592a"` [INFO] [stdout] 7d9c403a312b75ae45bb7f523e677ac635cc0c1b8e60c139e61d404f1a08592a