[INFO] cloning repository https://github.com/jameshiew/crust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jameshiew/crust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjameshiew%2Fcrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjameshiew%2Fcrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f14616799c78c518489ed4ba5c6b65db64ed3ac
[INFO] checking jameshiew/crust against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjameshiew%2Fcrust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jameshiew/crust on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jameshiew/crust
[INFO] finished tweaking git repo https://github.com/jameshiew/crust
[INFO] tweaked toml for git repo https://github.com/jameshiew/crust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jameshiew/crust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a114a3d3b426f9cb565457275dcbccafaf04750a8c3c6f23e0963967878893ad
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a114a3d3b426f9cb565457275dcbccafaf04750a8c3c6f23e0963967878893ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a114a3d3b426f9cb565457275dcbccafaf04750a8c3c6f23e0963967878893ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a114a3d3b426f9cb565457275dcbccafaf04750a8c3c6f23e0963967878893ad", kill_on_drop: false }`
[INFO] [stdout] a114a3d3b426f9cb565457275dcbccafaf04750a8c3c6f23e0963967878893ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ab73185d96b0d084c939bf5cdd39a590460cdc3b8a1fc40daac9860566013d0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4ab73185d96b0d084c939bf5cdd39a590460cdc3b8a1fc40daac9860566013d0", kill_on_drop: false }`
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.4
[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 crust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lexer.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         lazy_static! {
[INFO] [stdout] 42 | |             static ref INT_KEYWORD: Regex = Regex::new(r"^int$").unwrap();
[INFO] [stdout] 43 | |             static ref RETURN_KEYWORD: Regex = Regex::new(r"^return$").unwrap();
[INFO] [stdout] 44 | |             static ref IDENTIFIER: Regex = Regex::new(r"^[a-zA-Z]\w*$").unwrap();
[INFO] [stdout] 45 | |             static ref INTEGER_LITERAL: Regex = Regex::new(r"^[0-9]+$").unwrap();
[INFO] [stdout] 46 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lexer.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         lazy_static! {
[INFO] [stdout] 42 | |             static ref INT_KEYWORD: Regex = Regex::new(r"^int$").unwrap();
[INFO] [stdout] 43 | |             static ref RETURN_KEYWORD: Regex = Regex::new(r"^return$").unwrap();
[INFO] [stdout] 44 | |             static ref IDENTIFIER: Regex = Regex::new(r"^[a-zA-Z]\w*$").unwrap();
[INFO] [stdout] 45 | |             static ref INTEGER_LITERAL: Regex = Regex::new(r"^[0-9]+$").unwrap();
[INFO] [stdout] 46 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lexer.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         lazy_static! {
[INFO] [stdout] 42 | |             static ref INT_KEYWORD: Regex = Regex::new(r"^int$").unwrap();
[INFO] [stdout] 43 | |             static ref RETURN_KEYWORD: Regex = Regex::new(r"^return$").unwrap();
[INFO] [stdout] 44 | |             static ref IDENTIFIER: Regex = Regex::new(r"^[a-zA-Z]\w*$").unwrap();
[INFO] [stdout] 45 | |             static ref INTEGER_LITERAL: Regex = Regex::new(r"^[0-9]+$").unwrap();
[INFO] [stdout] 46 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lexer.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         lazy_static! {
[INFO] [stdout] 42 | |             static ref INT_KEYWORD: Regex = Regex::new(r"^int$").unwrap();
[INFO] [stdout] 43 | |             static ref RETURN_KEYWORD: Regex = Regex::new(r"^return$").unwrap();
[INFO] [stdout] 44 | |             static ref IDENTIFIER: Regex = Regex::new(r"^[a-zA-Z]\w*$").unwrap();
[INFO] [stdout] 45 | |             static ref INTEGER_LITERAL: Regex = Regex::new(r"^[0-9]+$").unwrap();
[INFO] [stdout] 46 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lexer.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         lazy_static! {
[INFO] [stdout] 42 | |             static ref INT_KEYWORD: Regex = Regex::new(r"^int$").unwrap();
[INFO] [stdout] 43 | |             static ref RETURN_KEYWORD: Regex = Regex::new(r"^return$").unwrap();
[INFO] [stdout] 44 | |             static ref IDENTIFIER: Regex = Regex::new(r"^[a-zA-Z]\w*$").unwrap();
[INFO] [stdout] 45 | |             static ref INTEGER_LITERAL: Regex = Regex::new(r"^[0-9]+$").unwrap();
[INFO] [stdout] 46 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lexer.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         lazy_static! {
[INFO] [stdout] 42 | |             static ref INT_KEYWORD: Regex = Regex::new(r"^int$").unwrap();
[INFO] [stdout] 43 | |             static ref RETURN_KEYWORD: Regex = Regex::new(r"^return$").unwrap();
[INFO] [stdout] 44 | |             static ref IDENTIFIER: Regex = Regex::new(r"^[a-zA-Z]\w*$").unwrap();
[INFO] [stdout] 45 | |             static ref INTEGER_LITERAL: Regex = Regex::new(r"^[0-9]+$").unwrap();
[INFO] [stdout] 46 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lexer.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         lazy_static! {
[INFO] [stdout] 42 | |             static ref INT_KEYWORD: Regex = Regex::new(r"^int$").unwrap();
[INFO] [stdout] 43 | |             static ref RETURN_KEYWORD: Regex = Regex::new(r"^return$").unwrap();
[INFO] [stdout] 44 | |             static ref IDENTIFIER: Regex = Regex::new(r"^[a-zA-Z]\w*$").unwrap();
[INFO] [stdout] 45 | |             static ref INTEGER_LITERAL: Regex = Regex::new(r"^[0-9]+$").unwrap();
[INFO] [stdout] 46 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lexer.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         lazy_static! {
[INFO] [stdout] 42 | |             static ref INT_KEYWORD: Regex = Regex::new(r"^int$").unwrap();
[INFO] [stdout] 43 | |             static ref RETURN_KEYWORD: Regex = Regex::new(r"^return$").unwrap();
[INFO] [stdout] 44 | |             static ref IDENTIFIER: Regex = Regex::new(r"^[a-zA-Z]\w*$").unwrap();
[INFO] [stdout] 45 | |             static ref INTEGER_LITERAL: Regex = Regex::new(r"^[0-9]+$").unwrap();
[INFO] [stdout] 46 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.14s
[INFO] running `Command { std: "docker" "inspect" "4ab73185d96b0d084c939bf5cdd39a590460cdc3b8a1fc40daac9860566013d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ab73185d96b0d084c939bf5cdd39a590460cdc3b8a1fc40daac9860566013d0", kill_on_drop: false }`
[INFO] [stdout] 4ab73185d96b0d084c939bf5cdd39a590460cdc3b8a1fc40daac9860566013d0