[INFO] cloning repository https://github.com/jrvidal/marfil
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrvidal/marfil" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fmarfil", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fmarfil'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03e746c649d4aaef4ddfdfabc9778b4525f79e40
[INFO] checking jrvidal/marfil against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrvidal%2Fmarfil" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jrvidal/marfil 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/jrvidal/marfil
[INFO] finished tweaking git repo https://github.com/jrvidal/marfil
[INFO] tweaked toml for git repo https://github.com/jrvidal/marfil written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jrvidal/marfil 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 lalrpop-util v0.19.0
[INFO] [stderr]   Downloaded lalrpop v0.19.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 085e5a9bf4d8cd09e860e0e921b54a9c0e7b912478ea25c605618ba109f398f4
[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" "085e5a9bf4d8cd09e860e0e921b54a9c0e7b912478ea25c605618ba109f398f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "085e5a9bf4d8cd09e860e0e921b54a9c0e7b912478ea25c605618ba109f398f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "085e5a9bf4d8cd09e860e0e921b54a9c0e7b912478ea25c605618ba109f398f4", kill_on_drop: false }`
[INFO] [stdout] 085e5a9bf4d8cd09e860e0e921b54a9c0e7b912478ea25c605618ba109f398f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 33b47280d82fc40982b90708009b82c81001b2562877d0a519ebe7e729dce419
[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" "33b47280d82fc40982b90708009b82c81001b2562877d0a519ebe7e729dce419", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling lalrpop-util v0.19.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling lalrpop v0.19.0
[INFO] [stderr]    Compiling marfil v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/ast.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/ast.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "33b47280d82fc40982b90708009b82c81001b2562877d0a519ebe7e729dce419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33b47280d82fc40982b90708009b82c81001b2562877d0a519ebe7e729dce419", kill_on_drop: false }`
[INFO] [stdout] 33b47280d82fc40982b90708009b82c81001b2562877d0a519ebe7e729dce419