[INFO] cloning repository https://github.com/Arnaud-D/tesselz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Arnaud-D/tesselz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArnaud-D%2Ftesselz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArnaud-D%2Ftesselz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa6112e309b82484df0d7370681ffad31c778c10
[INFO] checking Arnaud-D/tesselz against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArnaud-D%2Ftesselz" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Arnaud-D/tesselz on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Arnaud-D/tesselz
[INFO] finished tweaking git repo https://github.com/Arnaud-D/tesselz
[INFO] tweaked toml for git repo https://github.com/Arnaud-D/tesselz written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Arnaud-D/tesselz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ascii-canvas v2.0.0
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded diff v0.1.12
[INFO] [stderr]   Downloaded lalrpop v0.19.1
[INFO] [stderr]   Downloaded lalrpop-util v0.19.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40817550c6061deb73803f2c7cc20db5c9f5a788bd0eb39fb4d6d1cf6c532a4f
[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" "40817550c6061deb73803f2c7cc20db5c9f5a788bd0eb39fb4d6d1cf6c532a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40817550c6061deb73803f2c7cc20db5c9f5a788bd0eb39fb4d6d1cf6c532a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40817550c6061deb73803f2c7cc20db5c9f5a788bd0eb39fb4d6d1cf6c532a4f", kill_on_drop: false }`
[INFO] [stdout] 40817550c6061deb73803f2c7cc20db5c9f5a788bd0eb39fb4d6d1cf6c532a4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81de85b90b893383267b8016a1bfad74bb2eb0eaa27528f94553703a9d443b8b
[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" "81de85b90b893383267b8016a1bfad74bb2eb0eaa27528f94553703a9d443b8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling lalrpop-util v0.19.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling lalrpop v0.19.1
[INFO] [stderr]    Compiling tesselz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `get_test_program`
[INFO] [stdout]   --> src/exec.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn get_test_program() -> Program {
[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: `get_test_program`
[INFO] [stdout]   --> src/exec.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn get_test_program() -> Program {
[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 1m 33s
[INFO] running `Command { std: "docker" "inspect" "81de85b90b893383267b8016a1bfad74bb2eb0eaa27528f94553703a9d443b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81de85b90b893383267b8016a1bfad74bb2eb0eaa27528f94553703a9d443b8b", kill_on_drop: false }`
[INFO] [stdout] 81de85b90b893383267b8016a1bfad74bb2eb0eaa27528f94553703a9d443b8b