[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 try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgenya0407%2Falta" "/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/genya0407/alta on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getopts v0.2.18
[INFO] [stderr]   Downloaded cc v1.0.24
[INFO] [stderr]   Downloaded nix v0.11.0
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d66d44fef9fff8c878d1febf62610853262bc446aa60c2c846ac824ecb82ecdb
[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" "d66d44fef9fff8c878d1febf62610853262bc446aa60c2c846ac824ecb82ecdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d66d44fef9fff8c878d1febf62610853262bc446aa60c2c846ac824ecb82ecdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d66d44fef9fff8c878d1febf62610853262bc446aa60c2c846ac824ecb82ecdb", kill_on_drop: false }`
[INFO] [stdout] d66d44fef9fff8c878d1febf62610853262bc446aa60c2c846ac824ecb82ecdb
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dff1f889aaed7aebbce62c60e38a6679212ee9be9f59b1c5387ab7464b3576e
[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" "9dff1f889aaed7aebbce62c60e38a6679212ee9be9f59b1c5387ab7464b3576e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling regex v1.0.4
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking regex-syntax v0.6.2
[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: 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.73s
[INFO] running `Command { std: "docker" "inspect" "9dff1f889aaed7aebbce62c60e38a6679212ee9be9f59b1c5387ab7464b3576e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dff1f889aaed7aebbce62c60e38a6679212ee9be9f59b1c5387ab7464b3576e", kill_on_drop: false }`
[INFO] [stdout] 9dff1f889aaed7aebbce62c60e38a6679212ee9be9f59b1c5387ab7464b3576e