[INFO] updating cached repository https://github.com/UnlawfulMonad/regtest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 263c3a5cdf093113a911b84579d4c0eb3b609b49
[INFO] checking UnlawfulMonad/regtest against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnlawfulMonad%2Fregtest" "/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/UnlawfulMonad/regtest on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/UnlawfulMonad/regtest
[INFO] finished tweaking git repo https://github.com/UnlawfulMonad/regtest
[INFO] tweaked toml for git repo https://github.com/UnlawfulMonad/regtest written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/UnlawfulMonad/regtest already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e23d187aa4f0424ee9b50bb0a8f33465ef3e121f393817eb03204b256d6dea25
[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" "e23d187aa4f0424ee9b50bb0a8f33465ef3e121f393817eb03204b256d6dea25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e23d187aa4f0424ee9b50bb0a8f33465ef3e121f393817eb03204b256d6dea25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e23d187aa4f0424ee9b50bb0a8f33465ef3e121f393817eb03204b256d6dea25", kill_on_drop: false }`
[INFO] [stdout] e23d187aa4f0424ee9b50bb0a8f33465ef3e121f393817eb03204b256d6dea25
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 775e4a0df54a59695e373d5692d41df531d10325c509a06a3896cbff6c4fdd30
[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" "775e4a0df54a59695e373d5692d41df531d10325c509a06a3896cbff6c4fdd30", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking libc v0.2.35
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking app_dirs v1.1.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking clap v2.29.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking regtest v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | / bitflags! {
[INFO] [stdout] 49 | |     flags Config: u32 {
[INFO] [stdout] 50 | |         const VERBOSE_ERRORS = 0b00000001,
[INFO] [stdout] 51 | |         const CAPTURE_GROUPS = 0b00000010,
[INFO] [stdout] 52 | |         const COMPILE_TIME   = 0b00000100,
[INFO] [stdout] 53 | |     }
[INFO] [stdout] 54 | | }
[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 item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | / bitflags! {
[INFO] [stdout] 49 | |     flags Config: u32 {
[INFO] [stdout] 50 | |         const VERBOSE_ERRORS = 0b00000001,
[INFO] [stdout] 51 | |         const CAPTURE_GROUPS = 0b00000010,
[INFO] [stdout] 52 | |         const COMPILE_TIME   = 0b00000100,
[INFO] [stdout] 53 | |     }
[INFO] [stdout] 54 | | }
[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 item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | / bitflags! {
[INFO] [stdout] 49 | |     flags Config: u32 {
[INFO] [stdout] 50 | |         const VERBOSE_ERRORS = 0b00000001,
[INFO] [stdout] 51 | |         const CAPTURE_GROUPS = 0b00000010,
[INFO] [stdout] 52 | |         const COMPILE_TIME   = 0b00000100,
[INFO] [stdout] 53 | |     }
[INFO] [stdout] 54 | | }
[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 item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | / bitflags! {
[INFO] [stdout] 49 | |     flags Config: u32 {
[INFO] [stdout] 50 | |         const VERBOSE_ERRORS = 0b00000001,
[INFO] [stdout] 51 | |         const CAPTURE_GROUPS = 0b00000010,
[INFO] [stdout] 52 | |         const COMPILE_TIME   = 0b00000100,
[INFO] [stdout] 53 | |     }
[INFO] [stdout] 54 | | }
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.36s
[INFO] running `Command { std: "docker" "inspect" "775e4a0df54a59695e373d5692d41df531d10325c509a06a3896cbff6c4fdd30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "775e4a0df54a59695e373d5692d41df531d10325c509a06a3896cbff6c4fdd30", kill_on_drop: false }`
[INFO] [stdout] 775e4a0df54a59695e373d5692d41df531d10325c509a06a3896cbff6c4fdd30