[INFO] cloning repository https://github.com/genya0407/alta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/genya0407/alta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgenya0407%2Falta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgenya0407%2Falta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db35df29f9325601f21232f1f5b90a468c6145cd
[INFO] checking genya0407/alta against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgenya0407%2Falta" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/genya0407/alta on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/genya0407/alta
[INFO] finished tweaking git repo https://github.com/genya0407/alta
[INFO] tweaked toml for git repo https://github.com/genya0407/alta written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/genya0407/alta already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c923499aaf71181f3763c73adae5d72ae7868fc016e0e2658276ba014c788406
[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" "c923499aaf71181f3763c73adae5d72ae7868fc016e0e2658276ba014c788406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c923499aaf71181f3763c73adae5d72ae7868fc016e0e2658276ba014c788406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c923499aaf71181f3763c73adae5d72ae7868fc016e0e2658276ba014c788406", kill_on_drop: false }`
[INFO] [stdout] c923499aaf71181f3763c73adae5d72ae7868fc016e0e2658276ba014c788406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fb0d8cec9a3537b3856fef13b60452d6c8764e9c368410e4c74ea0842218426
[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" "9fb0d8cec9a3537b3856fef13b60452d6c8764e9c368410e4c74ea0842218426", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.4
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking alta v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/plot.rs:13:62
[INFO] [stdout]    |
[INFO] [stdout] 13 |         Err(why) => panic!("couldn't spawn gnuplot: {}", why.description()),
[INFO] [stdout]    |                                                              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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/plot.rs:19:32
[INFO] [stdout]    |
[INFO] [stdout] 19 | ...                   why.description()),
[INFO] [stdout]    |                           ^^^^^^^^^^^
[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/plot.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 | ...                   why.description()),
[INFO] [stdout]    |                           ^^^^^^^^^^^
[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::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/plot.rs:13:62
[INFO] [stdout]    |
[INFO] [stdout] 13 |         Err(why) => panic!("couldn't spawn gnuplot: {}", why.description()),
[INFO] [stdout]    |                                                              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` 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/plot.rs:19:32
[INFO] [stdout]    |
[INFO] [stdout] 19 | ...                   why.description()),
[INFO] [stdout]    |                           ^^^^^^^^^^^
[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/plot.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 | ...                   why.description()),
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.60s
[INFO] running `Command { std: "docker" "inspect" "9fb0d8cec9a3537b3856fef13b60452d6c8764e9c368410e4c74ea0842218426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fb0d8cec9a3537b3856fef13b60452d6c8764e9c368410e4c74ea0842218426", kill_on_drop: false }`
[INFO] [stdout] 9fb0d8cec9a3537b3856fef13b60452d6c8764e9c368410e4c74ea0842218426