[INFO] cloning repository https://github.com/mb64/prolog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mb64/prolog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmb64%2Fprolog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmb64%2Fprolog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ea6fda3ef18b5ce9707e0c2327ef41894c7edf3
[INFO] checking mb64/prolog against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmb64%2Fprolog" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mb64/prolog on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mb64/prolog
[INFO] finished tweaking git repo https://github.com/mb64/prolog
[INFO] tweaked toml for git repo https://github.com/mb64/prolog written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mb64/prolog 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 34c9c3ecdb50f4751779a8f84a1a6d455005433873a7feedf3c3fa69f77651fa
[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" "34c9c3ecdb50f4751779a8f84a1a6d455005433873a7feedf3c3fa69f77651fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34c9c3ecdb50f4751779a8f84a1a6d455005433873a7feedf3c3fa69f77651fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c9c3ecdb50f4751779a8f84a1a6d455005433873a7feedf3c3fa69f77651fa", kill_on_drop: false }`
[INFO] [stdout] 34c9c3ecdb50f4751779a8f84a1a6d455005433873a7feedf3c3fa69f77651fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c7409acf64eef83ce3b64b0d0e4cdb8b1e6516e2386a034166aa8256d4c15b56
[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" "c7409acf64eef83ce3b64b0d0e4cdb8b1e6516e2386a034166aa8256d4c15b56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lalrpop-util v0.19.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking typed-arena v2.0.1 (https://github.com/mb64/rust-typed-arena#43586bc0)
[INFO] [stderr]     Checking unicode-segmentation v1.7.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking lasso v0.3.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.1
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking cpu-time v1.0.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]     Checking dirs-next v1.0.2
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]     Checking const-random v0.1.11
[INFO] [stderr]     Checking ahash v0.4.6
[INFO] [stderr]     Checking scoped_map v0.2.0 (https://github.com/mb64/scoped_map.git?branch=main#79b67877)
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking rustyline v6.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.19.1
[INFO] [stderr]    Compiling prolog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `load_file`
[INFO] [stdout]   --> src/main.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn load_file(filename: &str, ctx: &mut Context) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_file`
[INFO] [stdout]   --> src/main.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn load_file(filename: &str, ctx: &mut Context) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 06s
[INFO] running `Command { std: "docker" "inspect" "c7409acf64eef83ce3b64b0d0e4cdb8b1e6516e2386a034166aa8256d4c15b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7409acf64eef83ce3b64b0d0e4cdb8b1e6516e2386a034166aa8256d4c15b56", kill_on_drop: false }`
[INFO] [stdout] c7409acf64eef83ce3b64b0d0e4cdb8b1e6516e2386a034166aa8256d4c15b56