[INFO] cloning repository https://github.com/Baransu/rust-exercise-electronic-signature
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Baransu/rust-exercise-electronic-signature" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBaransu%2Frust-exercise-electronic-signature", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBaransu%2Frust-exercise-electronic-signature'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04c8255bbf78f9e014e7eb42c867de5e8ab7ff3e
[INFO] testing Baransu/rust-exercise-electronic-signature against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBaransu%2Frust-exercise-electronic-signature" "/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/Baransu/rust-exercise-electronic-signature on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Baransu/rust-exercise-electronic-signature
[INFO] finished tweaking git repo https://github.com/Baransu/rust-exercise-electronic-signature
[INFO] tweaked toml for git repo https://github.com/Baransu/rust-exercise-electronic-signature written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Baransu/rust-exercise-electronic-signature already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 75585ae63666e264ea0d036181ec9becfb3dd1a3286513134c2497000e7abda1
[INFO] running `Command { std: "docker" "start" "-a" "75585ae63666e264ea0d036181ec9becfb3dd1a3286513134c2497000e7abda1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75585ae63666e264ea0d036181ec9becfb3dd1a3286513134c2497000e7abda1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75585ae63666e264ea0d036181ec9becfb3dd1a3286513134c2497000e7abda1", kill_on_drop: false }`
[INFO] [stdout] 75585ae63666e264ea0d036181ec9becfb3dd1a3286513134c2497000e7abda1
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72cc5bd53567975e83786112209be40e29320cb76b60074656939c4862159fe5
[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" "72cc5bd53567975e83786112209be40e29320cb76b60074656939c4862159fe5", kill_on_drop: false }`
[INFO] [stderr]    Compiling podpis 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/main.rs:24:67
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(err) => panic!("Coudn't open {}: {}", display, Error::description(&err)),
[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/main.rs:91:67
[INFO] [stdout]    |
[INFO] [stdout] 91 |         Err(err) => panic!("Coudn't open {}: {}", display, Error::description(&err)),
[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/main.rs:140:70
[INFO] [stdout]     |
[INFO] [stdout] 140 |         Err(why) => panic!("couldn't create {}: {}", display, Error::description(&why)),
[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/main.rs:144:72
[INFO] [stdout]     |
[INFO] [stdout] 144 |         Err(why) => panic!("Couldn't write to {}: {}", display, Error::description(&why)),
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72cc5bd53567975e83786112209be40e29320cb76b60074656939c4862159fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72cc5bd53567975e83786112209be40e29320cb76b60074656939c4862159fe5", kill_on_drop: false }`
[INFO] [stdout] 72cc5bd53567975e83786112209be40e29320cb76b60074656939c4862159fe5
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7411aea968c6e5593425009796b832d91cf09e11e8a3648f7179bbfc7e88395f
[INFO] running `Command { std: "docker" "start" "-a" "7411aea968c6e5593425009796b832d91cf09e11e8a3648f7179bbfc7e88395f", kill_on_drop: false }`
[INFO] [stderr]    Compiling podpis 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/main.rs:24:67
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(err) => panic!("Coudn't open {}: {}", display, Error::description(&err)),
[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/main.rs:91:67
[INFO] [stdout]    |
[INFO] [stdout] 91 |         Err(err) => panic!("Coudn't open {}: {}", display, Error::description(&err)),
[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/main.rs:140:70
[INFO] [stdout]     |
[INFO] [stdout] 140 |         Err(why) => panic!("couldn't create {}: {}", display, Error::description(&why)),
[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/main.rs:144:72
[INFO] [stdout]     |
[INFO] [stdout] 144 |         Err(why) => panic!("Couldn't write to {}: {}", display, Error::description(&why)),
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7411aea968c6e5593425009796b832d91cf09e11e8a3648f7179bbfc7e88395f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7411aea968c6e5593425009796b832d91cf09e11e8a3648f7179bbfc7e88395f", kill_on_drop: false }`
[INFO] [stdout] 7411aea968c6e5593425009796b832d91cf09e11e8a3648f7179bbfc7e88395f
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 636dc0cd413c8635ea82a49689047c5afd039ce61f44909a5b828026bf5b290f
[INFO] running `Command { std: "docker" "start" "-a" "636dc0cd413c8635ea82a49689047c5afd039ce61f44909a5b828026bf5b290f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:24:67
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 24 |         Err(err) => panic!("Coudn't open {}: {}", display, Error::description(&err)),
[INFO] [stdout] 
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:91:67
[INFO] [stderr]    |
[INFO] [stderr] 91 |         Err(err) => panic!("Coudn't open {}: {}", display, Error::description(&err)),
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/main.rs:140:70
[INFO] [stderr]     |
[INFO] [stderr] 140 |         Err(why) => panic!("couldn't create {}: {}", display, Error::description(&why)),
[INFO] [stderr]     |                                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/main.rs:144:72
[INFO] [stderr]     |
[INFO] [stderr] 144 |         Err(why) => panic!("Couldn't write to {}: {}", display, Error::description(&why)),
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `podpis` (bin "podpis" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/podpis-a785e4b883880dc1)
[INFO] running `Command { std: "docker" "inspect" "636dc0cd413c8635ea82a49689047c5afd039ce61f44909a5b828026bf5b290f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636dc0cd413c8635ea82a49689047c5afd039ce61f44909a5b828026bf5b290f", kill_on_drop: false }`
[INFO] [stdout] 636dc0cd413c8635ea82a49689047c5afd039ce61f44909a5b828026bf5b290f