[INFO] cloning repository https://github.com/ruuda/tako
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruuda/tako" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruuda%2Ftako", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruuda%2Ftako'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9a6c6917968b15e80ace060dbdb18250cf21a7e
[INFO] checking ruuda/tako against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruuda%2Ftako" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruuda/tako on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ruuda/tako
[INFO] finished tweaking git repo https://github.com/ruuda/tako
[INFO] tweaked toml for git repo https://github.com/ruuda/tako written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ruuda/tako already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbbc2a6de16e97eabcebedf829bf1ac3f7c13681c16714f97b9fc1228fb8d630
[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" "bbbc2a6de16e97eabcebedf829bf1ac3f7c13681c16714f97b9fc1228fb8d630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbbc2a6de16e97eabcebedf829bf1ac3f7c13681c16714f97b9fc1228fb8d630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbbc2a6de16e97eabcebedf829bf1ac3f7c13681c16714f97b9fc1228fb8d630", kill_on_drop: false }`
[INFO] [stdout] bbbc2a6de16e97eabcebedf829bf1ac3f7c13681c16714f97b9fc1228fb8d630
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51d96c1f43562d664d5d1f49f1c0926ea96e6c193a01fcf367ee001c2e5c565c
[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" "51d96c1f43562d664d5d1f49f1c0926ea96e6c193a01fcf367ee001c2e5c565c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling libsodium-sys v0.0.16
[INFO] [stderr]     Checking filebuffer v0.4.0
[INFO] [stderr]     Checking sodiumoxide v0.0.16
[INFO] [stderr]     Checking tako v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/curl.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 | type Handler<'a> = Box<'a + FnMut(&[u8])>;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&[u8])`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/curl.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 | type Handler<'a> = Box<'a + FnMut(&[u8])>;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&[u8])`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 4.88s
[INFO] running `Command { std: "docker" "inspect" "51d96c1f43562d664d5d1f49f1c0926ea96e6c193a01fcf367ee001c2e5c565c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51d96c1f43562d664d5d1f49f1c0926ea96e6c193a01fcf367ee001c2e5c565c", kill_on_drop: false }`
[INFO] [stdout] 51d96c1f43562d664d5d1f49f1c0926ea96e6c193a01fcf367ee001c2e5c565c