[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 master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimsnj%2Ffanto" "/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/kimsnj/fanto on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-4/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" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a888993b1e5f63e0207c8305f17f23828f2e873d758195f3367e73943fe49df2
[INFO] running `Command { std: "docker" "start" "-a" "a888993b1e5f63e0207c8305f17f23828f2e873d758195f3367e73943fe49df2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a888993b1e5f63e0207c8305f17f23828f2e873d758195f3367e73943fe49df2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a888993b1e5f63e0207c8305f17f23828f2e873d758195f3367e73943fe49df2", kill_on_drop: false }`
[INFO] [stdout] a888993b1e5f63e0207c8305f17f23828f2e873d758195f3367e73943fe49df2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38fb071a9536b69113e717522e2994388d7a2b1db4df26ef1458008b9ea6d89e
[INFO] running `Command { std: "docker" "start" "-a" "38fb071a9536b69113e717522e2994388d7a2b1db4df26ef1458008b9ea6d89e", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking nix v0.8.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[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: 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 the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[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::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 the macro `error_chain_processed` (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 the macro `error_chain_processed` (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: 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 the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.70s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "38fb071a9536b69113e717522e2994388d7a2b1db4df26ef1458008b9ea6d89e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38fb071a9536b69113e717522e2994388d7a2b1db4df26ef1458008b9ea6d89e", kill_on_drop: false }`
[INFO] [stdout] 38fb071a9536b69113e717522e2994388d7a2b1db4df26ef1458008b9ea6d89e