[INFO] cloning repository https://github.com/kimsnj/fanto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kimsnj/fanto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimsnj%2Ffanto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimsnj%2Ffanto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdd3821997443926fe16de879be7c1b70803819d
[INFO] checking kimsnj/fanto against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimsnj%2Ffanto" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kimsnj/fanto 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/kimsnj/fanto
[INFO] finished tweaking git repo https://github.com/kimsnj/fanto
[INFO] tweaked toml for git repo https://github.com/kimsnj/fanto written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kimsnj/fanto 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] b894a93a3c8a9dee74ef788d7adf0902eb36269079f91dd2ea053cab2b226480
[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" "b894a93a3c8a9dee74ef788d7adf0902eb36269079f91dd2ea053cab2b226480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b894a93a3c8a9dee74ef788d7adf0902eb36269079f91dd2ea053cab2b226480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b894a93a3c8a9dee74ef788d7adf0902eb36269079f91dd2ea053cab2b226480", kill_on_drop: false }`
[INFO] [stdout] b894a93a3c8a9dee74ef788d7adf0902eb36269079f91dd2ea053cab2b226480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 7637c8c2cfb3301191d12bb7271565cd1b3eacdcc6f42a6177508b38d0637475
[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" "7637c8c2cfb3301191d12bb7271565cd1b3eacdcc6f42a6177508b38d0637475", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nix v0.8.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking fanto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]    --> src/main.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 8   | use std::io::Write;
[INFO] [stdout]     |     -------------- the item `Write` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 208 |         use std::io::Write;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]    --> src/main.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 8   | use std::io::Write;
[INFO] [stdout]     |     -------------- the item `Write` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 208 |         use std::io::Write;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     error_chain!{
[INFO] [stdout] 16 | |         foreign_links {
[INFO] [stdout] 17 | |             Nix(::nix::Error);
[INFO] [stdout] 18 | |         }
[INFO] [stdout] 19 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     error_chain!{
[INFO] [stdout] 16 | |         foreign_links {
[INFO] [stdout] 17 | |             Nix(::nix::Error);
[INFO] [stdout] 18 | |         }
[INFO] [stdout] 19 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     error_chain!{
[INFO] [stdout] 16 | |         foreign_links {
[INFO] [stdout] 17 | |             Nix(::nix::Error);
[INFO] [stdout] 18 | |         }
[INFO] [stdout] 19 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     error_chain!{
[INFO] [stdout] 16 | |         foreign_links {
[INFO] [stdout] 17 | |             Nix(::nix::Error);
[INFO] [stdout] 18 | |         }
[INFO] [stdout] 19 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.25s
[INFO] running `Command { std: "docker" "inspect" "7637c8c2cfb3301191d12bb7271565cd1b3eacdcc6f42a6177508b38d0637475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7637c8c2cfb3301191d12bb7271565cd1b3eacdcc6f42a6177508b38d0637475", kill_on_drop: false }`
[INFO] [stdout] 7637c8c2cfb3301191d12bb7271565cd1b3eacdcc6f42a6177508b38d0637475