[INFO] cloning repository https://github.com/aHeraud/bfc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aHeraud/bfc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaHeraud%2Fbfc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaHeraud%2Fbfc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7f835313581bb6f8dd1838d91b00a6010d1afc7
[INFO] checking aHeraud/bfc against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaHeraud%2Fbfc" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aHeraud/bfc on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aHeraud/bfc
[INFO] finished tweaking git repo https://github.com/aHeraud/bfc
[INFO] tweaked toml for git repo https://github.com/aHeraud/bfc written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/aHeraud/bfc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generic-array v0.12.0
[INFO] [stderr]   Downloaded scroll v0.10.1
[INFO] [stderr]   Downloaded synstructure v0.10.1
[INFO] [stderr]   Downloaded scroll_derive v0.10.1
[INFO] [stderr]   Downloaded goblin v0.1.1
[INFO] [stderr]   Downloaded thiserror v1.0.5
[INFO] [stderr]   Downloaded bit-vec v0.5.0
[INFO] [stderr]   Downloaded bit-set v0.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.14
[INFO] [stderr]   Downloaded digest v0.8.0
[INFO] [stderr]   Downloaded fixedbitset v0.1.9
[INFO] [stderr]   Downloaded ascii-canvas v2.0.0
[INFO] [stderr]   Downloaded cranelift v0.50.0
[INFO] [stderr]   Downloaded plain v0.2.3
[INFO] [stderr]   Downloaded faerie v0.12.0
[INFO] [stderr]   Downloaded serde v1.0.85
[INFO] [stderr]   Downloaded string-interner v0.7.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.28
[INFO] [stderr]   Downloaded thiserror-impl v1.0.5
[INFO] [stderr]   Downloaded ena v0.13.0
[INFO] [stderr]   Downloaded smallvec v1.0.0
[INFO] [stderr]   Downloaded block-buffer v0.7.2
[INFO] [stderr]   Downloaded cc v1.0.28
[INFO] [stderr]   Downloaded diff v0.1.11
[INFO] [stderr]   Downloaded petgraph v0.4.13
[INFO] [stderr]   Downloaded block-padding v0.1.3
[INFO] [stderr]   Downloaded rand_jitter v0.1.2
[INFO] [stderr]   Downloaded sha2 v0.8.0
[INFO] [stderr]   Downloaded autocfg v0.1.2
[INFO] [stderr]   Downloaded rand_os v0.1.2
[INFO] [stderr]   Downloaded proc-macro-error v0.2.6
[INFO] [stderr]   Downloaded structopt v0.3.4
[INFO] [stderr]   Downloaded ordermap v0.3.5
[INFO] [stderr]   Downloaded opaque-debug v0.2.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.26
[INFO] [stderr]   Downloaded lalrpop v0.17.2
[INFO] [stderr]   Downloaded structopt-derive v0.3.4
[INFO] [stderr]   Downloaded rustc-demangle v0.1.13
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.0
[INFO] [stderr]   Downloaded target-lexicon v0.9.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.50.0
[INFO] [stderr]   Downloaded serde_derive v1.0.85
[INFO] [stderr]   Downloaded cranelift-module v0.50.0
[INFO] [stderr]   Downloaded cranelift-faerie v0.50.0
[INFO] [stderr]   Downloaded lalrpop-util v0.17.2
[INFO] [stderr]   Downloaded cranelift-frontend v0.50.0
[INFO] [stderr]   Downloaded cranelift-entity v0.50.0
[INFO] [stderr]   Downloaded cranelift-bforest v0.50.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.50.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.50.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c4e84497b6d565a8fad404398f45166411337921ea9920949538b169a496057
[INFO] running `Command { std: "docker" "start" "-a" "7c4e84497b6d565a8fad404398f45166411337921ea9920949538b169a496057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c4e84497b6d565a8fad404398f45166411337921ea9920949538b169a496057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c4e84497b6d565a8fad404398f45166411337921ea9920949538b169a496057", kill_on_drop: false }`
[INFO] [stdout] 7c4e84497b6d565a8fad404398f45166411337921ea9920949538b169a496057
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e36e6d01df96e04849e21f32c4beac60bb057fccfda3f3e822665e33be8192b
[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" "4e36e6d01df96e04849e21f32c4beac60bb057fccfda3f3e822665e33be8192b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling serde v1.0.85
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling cranelift-entity v0.50.0
[INFO] [stderr]    Compiling target-lexicon v0.9.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.50.0
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking smallvec v1.0.0
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling opaque-debug v0.2.2
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling rand_jitter v0.1.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling block-padding v0.1.3
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]     Checking cranelift-bforest v0.50.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.50.0
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling ena v0.13.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling block-buffer v0.7.2
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking string-interner v0.7.1
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.5
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking thiserror v1.0.5
[INFO] [stderr]     Checking goblin v0.1.1
[INFO] [stderr]     Checking structopt v0.3.4
[INFO] [stderr]    Compiling cranelift-codegen v0.50.0
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]     Checking faerie v0.12.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]     Checking cranelift-frontend v0.50.0
[INFO] [stderr]     Checking cranelift-module v0.50.0
[INFO] [stderr]     Checking cranelift-faerie v0.50.0
[INFO] [stderr]     Checking cranelift v0.50.0
[INFO] [stderr]    Compiling bfc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bfc-ab38602e0d553f0a/out/grammar.rs:838:5
[INFO] [stdout]     |
[INFO] [stdout] 838 |     (__0)
[INFO] [stdout]     |     ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bfc-ab38602e0d553f0a/out/grammar.rs:838:5
[INFO] [stdout]     |
[INFO] [stdout] 838 |     (__0)
[INFO] [stdout]     |     ^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `getchar`
[INFO] [stdout]    --> src/codegen.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     getchar: FuncRef
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `getchar`
[INFO] [stdout]    --> src/codegen.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     getchar: FuncRef
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 44s
[INFO] running `Command { std: "docker" "inspect" "4e36e6d01df96e04849e21f32c4beac60bb057fccfda3f3e822665e33be8192b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e36e6d01df96e04849e21f32c4beac60bb057fccfda3f3e822665e33be8192b", kill_on_drop: false }`
[INFO] [stdout] 4e36e6d01df96e04849e21f32c4beac60bb057fccfda3f3e822665e33be8192b