[INFO] cloning repository https://github.com/ehlxr/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ehlxr/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehlxr%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehlxr%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39bb6127de2d92a72e3da7ba9691b91570f0400c
[INFO] testing ehlxr/rust_study against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehlxr%2Frust_study" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ehlxr/rust_study on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ehlxr/rust_study
[INFO] finished tweaking git repo https://github.com/ehlxr/rust_study
[INFO] tweaked toml for git repo https://github.com/ehlxr/rust_study written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ehlxr/rust_study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b50eadd76cd6f09931f7c6fc45c2c797de49264d7d829d425bf2447485ae0544
[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" "b50eadd76cd6f09931f7c6fc45c2c797de49264d7d829d425bf2447485ae0544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b50eadd76cd6f09931f7c6fc45c2c797de49264d7d829d425bf2447485ae0544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b50eadd76cd6f09931f7c6fc45c2c797de49264d7d829d425bf2447485ae0544", kill_on_drop: false }`
[INFO] [stdout] b50eadd76cd6f09931f7c6fc45c2c797de49264d7d829d425bf2447485ae0544
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d5b7882cbe3f512aa533c0285aa86b209bd638b29e8cf66c9c92869e634b3e1
[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" "9d5b7882cbe3f512aa533c0285aa86b209bd638b29e8cf66c9c92869e634b3e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/main.rs:7:47
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{collections::HashMap, fmt::Display, fs, fs::File, io, io::ErrorKind, thread};
[INFO] [stdout]   |                                               ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:640:10
[INFO] [stdout]     |
[INFO] [stdout] 640 |         1...5 => println!("one through five"),
[INFO] [stdout]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:646:12
[INFO] [stdout]     |
[INFO] [stdout] 646 |         'a'...'j' => println!("early ASCII letter"),
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:647:12
[INFO] [stdout]     |
[INFO] [stdout] 647 |         'k'...'z' => println!("late ASCII letter"),
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:779:35
[INFO] [stdout]     |
[INFO] [stdout] 779 |         Ms::Hello { id: id_var @ 3...7 } => println!("Found an id in range: {}", id_var),
[INFO] [stdout]     |                                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:781:27
[INFO] [stdout]     |
[INFO] [stdout] 781 |         Ms::Hello { id: 10...12 } => println!("Found an id in another range"),
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:338:19
[INFO] [stdout]     |
[INFO] [stdout] 338 |         .map(|(a, b)| a)
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `diameter`
[INFO] [stdout]    --> src/main.rs:878:9
[INFO] [stdout]     |
[INFO] [stdout] 878 |         diameter: &'a i32,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `StrWrap`
[INFO] [stdout]    --> src/main.rs:888:12
[INFO] [stdout]     |
[INFO] [stdout] 888 |     struct StrWrap<'a>(&'a str);
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fsw`
[INFO] [stdout]    --> src/main.rs:891:8
[INFO] [stdout]     |
[INFO] [stdout] 891 |     fn fsw(string: &str) -> StrWrap<'_> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]    --> src/main.rs:916:9
[INFO] [stdout]     |
[INFO] [stdout] 916 |         Stop,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.55s
[INFO] running `Command { std: "docker" "inspect" "9d5b7882cbe3f512aa533c0285aa86b209bd638b29e8cf66c9c92869e634b3e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5b7882cbe3f512aa533c0285aa86b209bd638b29e8cf66c9c92869e634b3e1", kill_on_drop: false }`
[INFO] [stdout] 9d5b7882cbe3f512aa533c0285aa86b209bd638b29e8cf66c9c92869e634b3e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d95443864d963ec868cbd0c37206292fb40e36db07206649467cef3ca50f4297
[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" "d95443864d963ec868cbd0c37206292fb40e36db07206649467cef3ca50f4297", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/main.rs:7:47
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{collections::HashMap, fmt::Display, fs, fs::File, io, io::ErrorKind, thread};
[INFO] [stdout]   |                                               ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:640:10
[INFO] [stdout]     |
[INFO] [stdout] 640 |         1...5 => println!("one through five"),
[INFO] [stdout]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:646:12
[INFO] [stdout]     |
[INFO] [stdout] 646 |         'a'...'j' => println!("early ASCII letter"),
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:647:12
[INFO] [stdout]     |
[INFO] [stdout] 647 |         'k'...'z' => println!("late ASCII letter"),
[INFO] [stdout]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:779:35
[INFO] [stdout]     |
[INFO] [stdout] 779 |         Ms::Hello { id: id_var @ 3...7 } => println!("Found an id in range: {}", id_var),
[INFO] [stdout]     |                                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/main.rs:781:27
[INFO] [stdout]     |
[INFO] [stdout] 781 |         Ms::Hello { id: 10...12 } => println!("Found an id in another range"),
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:338:19
[INFO] [stdout]     |
[INFO] [stdout] 338 |         .map(|(a, b)| a)
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v1`
[INFO] [stdout]     --> src/main.rs:1697:13
[INFO] [stdout]      |
[INFO] [stdout] 1697 |         let v1 = c.value(2);
[INFO] [stdout]      |             ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]     --> src/main.rs:1712:13
[INFO] [stdout]      |
[INFO] [stdout] 1712 |         let v = c.value("tetsss");
[INFO] [stdout]      |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `Command { std: "docker" "inspect" "d95443864d963ec868cbd0c37206292fb40e36db07206649467cef3ca50f4297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95443864d963ec868cbd0c37206292fb40e36db07206649467cef3ca50f4297", kill_on_drop: false }`
[INFO] [stdout] d95443864d963ec868cbd0c37206292fb40e36db07206649467cef3ca50f4297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9023b41104a97f447737219b3371d7ef92ee0a5db11b4b5756bc2fb64de1851e
[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" "9023b41104a97f447737219b3371d7ef92ee0a5db11b4b5756bc2fb64de1851e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fs`
[INFO] [stderr]  --> src/main.rs:7:47
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{collections::HashMap, fmt::Display, fs, fs::File, io, io::ErrorKind, thread};
[INFO] [stderr]   |                                               ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:640:10
[INFO] [stderr]     |
[INFO] [stderr] 640 |         1...5 => println!("one through five"),
[INFO] [stderr]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:646:12
[INFO] [stderr]     |
[INFO] [stderr] 646 |         'a'...'j' => println!("early ASCII letter"),
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:647:12
[INFO] [stderr]     |
[INFO] [stderr] 647 |         'k'...'z' => println!("late ASCII letter"),
[INFO] [stderr]     |            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:779:35
[INFO] [stderr]     |
[INFO] [stderr] 779 |         Ms::Hello { id: id_var @ 3...7 } => println!("Found an id in range: {}", id_var),
[INFO] [stderr]     |                                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:781:27
[INFO] [stderr]     |
[INFO] [stderr] 781 |         Ms::Hello { id: 10...12 } => println!("Found an id in another range"),
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:338:19
[INFO] [stderr]     |
[INFO] [stderr] 338 |         .map(|(a, b)| a)
[INFO] [stderr]     |                   ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stderr]     --> src/main.rs:1697:13
[INFO] [stderr]      |
[INFO] [stderr] 1697 |         let v1 = c.value(2);
[INFO] [stderr]      |             ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]     --> src/main.rs:1712:13
[INFO] [stderr]      |
[INFO] [stderr] 1712 |         let v = c.value("tetsss");
[INFO] [stderr]      |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_study-e56fbc480f6a5ee2
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::call_with_different_type ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::iterator_demonstration ... ok
[INFO] [stdout] test tests::it_sends_an_over_75_percent_warning_message ... ok
[INFO] [stdout] test tests::call_with_different_values ... ok
[INFO] [stdout] test tests::iterator_sum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9023b41104a97f447737219b3371d7ef92ee0a5db11b4b5756bc2fb64de1851e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9023b41104a97f447737219b3371d7ef92ee0a5db11b4b5756bc2fb64de1851e", kill_on_drop: false }`
[INFO] [stdout] 9023b41104a97f447737219b3371d7ef92ee0a5db11b4b5756bc2fb64de1851e
