[INFO] cloning repository https://github.com/andygrn/flock
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andygrn/flock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandygrn%2Fflock", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandygrn%2Fflock'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88b50285043c1d832908068be18cf00c0a14d8cd
[INFO] checking andygrn/flock against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandygrn%2Fflock" "/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/andygrn/flock 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/andygrn/flock
[INFO] finished tweaking git repo https://github.com/andygrn/flock
[INFO] tweaked toml for git repo https://github.com/andygrn/flock written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/andygrn/flock 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 tuple_utils v0.2.0
[INFO] [stderr]   Downloaded shred v0.5.0
[INFO] [stderr]   Downloaded odds v0.2.26
[INFO] [stderr]   Downloaded shred-derive v0.3.0
[INFO] [stderr]   Downloaded arrayvec v0.3.24
[INFO] [stderr]   Downloaded specs v0.10.0
[INFO] [stderr]   Downloaded atom v0.3.4
[INFO] [stderr]   Downloaded noise v0.4.1
[INFO] [stderr]   Downloaded pulse v0.5.3
[INFO] [stderr]   Downloaded hibitset v0.3.2
[INFO] [stderr]   Downloaded mopa v0.2.2
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0798eeb85736792b05f6c8743f93ea63d6615bbebb4328c17035ba01d2a196bc
[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" "0798eeb85736792b05f6c8743f93ea63d6615bbebb4328c17035ba01d2a196bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0798eeb85736792b05f6c8743f93ea63d6615bbebb4328c17035ba01d2a196bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0798eeb85736792b05f6c8743f93ea63d6615bbebb4328c17035ba01d2a196bc", kill_on_drop: false }`
[INFO] [stdout] 0798eeb85736792b05f6c8743f93ea63d6615bbebb4328c17035ba01d2a196bc
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09a26635d0eb2ccd76e2b590b5f398f2d622a12914d387d118d798f07116bff1
[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" "09a26635d0eb2ccd76e2b590b5f398f2d622a12914d387d118d798f07116bff1", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]     Checking atom v0.3.4
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking crossbeam v0.3.0
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking arrayvec v0.3.24
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]     Checking noise v0.4.1
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]    Compiling shred-derive v0.3.0
[INFO] [stderr]     Checking hibitset v0.3.2
[INFO] [stderr]     Checking shred v0.5.0
[INFO] [stderr]    Compiling derivative v1.0.0
[INFO] [stderr]     Checking specs v0.10.0
[INFO] [stderr]     Checking flock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/terminal_renderer.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub char_gen: (fn(f32, f32) -> char),
[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 type
[INFO] [stdout]   --> src/terminal_renderer.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 31 |         char_gen: (fn(f32, f32) -> char),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/terminal_renderer.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub char_gen: (fn(f32, f32) -> char),
[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 type
[INFO] [stdout]   --> src/terminal_renderer.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 31 |         char_gen: (fn(f32, f32) -> char),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[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 30.21s
[INFO] running `Command { std: "docker" "inspect" "09a26635d0eb2ccd76e2b590b5f398f2d622a12914d387d118d798f07116bff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09a26635d0eb2ccd76e2b590b5f398f2d622a12914d387d118d798f07116bff1", kill_on_drop: false }`
[INFO] [stdout] 09a26635d0eb2ccd76e2b590b5f398f2d622a12914d387d118d798f07116bff1