[INFO] cloning repository https://github.com/Ben-PH/hello_specs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ben-PH/hello_specs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBen-PH%2Fhello_specs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBen-PH%2Fhello_specs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 791610fa47cb8875e262721212f07233b1d020e0
[INFO] checking Ben-PH/hello_specs against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBen-PH%2Fhello_specs" "/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/Ben-PH/hello_specs on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ben-PH/hello_specs
[INFO] finished tweaking git repo https://github.com/Ben-PH/hello_specs
[INFO] tweaked toml for git repo https://github.com/Ben-PH/hello_specs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Ben-PH/hello_specs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] c6ec8ccfc92af0a13ff0a7bbe42e81380a295c5b33b3fb1b6a36d7429dc4e416
[INFO] running `Command { std: "docker" "start" "-a" "c6ec8ccfc92af0a13ff0a7bbe42e81380a295c5b33b3fb1b6a36d7429dc4e416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6ec8ccfc92af0a13ff0a7bbe42e81380a295c5b33b3fb1b6a36d7429dc4e416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6ec8ccfc92af0a13ff0a7bbe42e81380a295c5b33b3fb1b6a36d7429dc4e416", kill_on_drop: false }`
[INFO] [stdout] c6ec8ccfc92af0a13ff0a7bbe42e81380a295c5b33b3fb1b6a36d7429dc4e416
[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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a59cc9d6b41d157b795e4dd9395613645fc7848acb7f2834ad05cbae809831d
[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" "0a59cc9d6b41d157b795e4dd9395613645fc7848acb7f2834ad05cbae809831d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling rayon-core v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tynm v0.1.4
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking shred v0.10.2
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]     Checking specs v0.16.1
[INFO] [stderr]     Checking try_specs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RunNow`
[INFO] [stdout]  --> src/main.rs:1:102
[INFO] [stdout]   |
[INFO] [stdout] 1 | use specs::{Join, Read, DispatcherBuilder, WriteStorage, ReadStorage, Component, VecStorage, System, RunNow};
[INFO] [stdout]   |                                                                                                      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Join` is imported redundantly
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 1  | use specs::{Join, Read, DispatcherBuilder, WriteStorage, ReadStorage, Component, VecStorage, System, RunNow};
[INFO] [stdout]    |             ---- the item `Join` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 29 |         use specs::Join;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RunNow`
[INFO] [stdout]  --> src/main.rs:1:102
[INFO] [stdout]   |
[INFO] [stdout] 1 | use specs::{Join, Read, DispatcherBuilder, WriteStorage, ReadStorage, Component, VecStorage, System, RunNow};
[INFO] [stdout]   |                                                                                                      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Join` is imported redundantly
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 1  | use specs::{Join, Read, DispatcherBuilder, WriteStorage, ReadStorage, Component, VecStorage, System, RunNow};
[INFO] [stdout]    |             ---- the item `Join` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 29 |         use specs::Join;
[INFO] [stdout]    |             ^^^^^^^^^^^
[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 30.96s
[INFO] running `Command { std: "docker" "inspect" "0a59cc9d6b41d157b795e4dd9395613645fc7848acb7f2834ad05cbae809831d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a59cc9d6b41d157b795e4dd9395613645fc7848acb7f2834ad05cbae809831d", kill_on_drop: false }`
[INFO] [stdout] 0a59cc9d6b41d157b795e4dd9395613645fc7848acb7f2834ad05cbae809831d