[INFO] cloning repository https://github.com/SwapnilKumbhar/myn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SwapnilKumbhar/myn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwapnilKumbhar%2Fmyn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwapnilKumbhar%2Fmyn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] effc767a69219a850e65f801a8f1c37ebe572182
[INFO] checking SwapnilKumbhar/myn against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwapnilKumbhar%2Fmyn" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SwapnilKumbhar/myn on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SwapnilKumbhar/myn
[INFO] finished tweaking git repo https://github.com/SwapnilKumbhar/myn
[INFO] tweaked toml for git repo https://github.com/SwapnilKumbhar/myn written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SwapnilKumbhar/myn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pam-client v0.5.0
[INFO] [stderr]   Downloaded pam-sys v1.0.0-alpha4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f6ebdc999dbe764520a05537179d5374f3a12b7c4dccb9497d4cf13d4e76522
[INFO] running `Command { std: "docker" "start" "-a" "6f6ebdc999dbe764520a05537179d5374f3a12b7c4dccb9497d4cf13d4e76522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f6ebdc999dbe764520a05537179d5374f3a12b7c4dccb9497d4cf13d4e76522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f6ebdc999dbe764520a05537179d5374f3a12b7c4dccb9497d4cf13d4e76522", kill_on_drop: false }`
[INFO] [stdout] 6f6ebdc999dbe764520a05537179d5374f3a12b7c4dccb9497d4cf13d4e76522
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a26fb77b528c42828ca35bf2020320e6cb222d5d93c30b66061d960c21f70dd
[INFO] running `Command { std: "docker" "start" "-a" "9a26fb77b528c42828ca35bf2020320e6cb222d5d93c30b66061d960c21f70dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling clang-sys v1.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.75
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking ordered-float v2.10.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling enum-repr v0.2.6
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking serde_yaml v0.8.23
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]     Checking rpassword v6.0.1
[INFO] [stderr]     Checking log4rs v1.0.0
[INFO] [stderr]    Compiling pam-sys v1.0.0-alpha4
[INFO] [stderr]     Checking pam-client v0.5.0
[INFO] [stderr]     Checking myn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `log4rs` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log4rs;
[INFO] [stdout]   |     ^^^^^^ the item `log4rs` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log4rs` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log4rs;
[INFO] [stdout]   |     ^^^^^^ the item `log4rs` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotImplemented` is never constructed
[INFO] [stdout]  --> src/strategies/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum AuthenticationError {
[INFO] [stdout]   |          ------------------- variant in this enum
[INFO] [stdout] 5 |     NotImplemented,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotImplemented` is never constructed
[INFO] [stdout]  --> src/strategies/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum AuthenticationError {
[INFO] [stdout]   |          ------------------- variant in this enum
[INFO] [stdout] 5 |     NotImplemented,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_name` and `get_description` are never used
[INFO] [stdout]   --> src/strategies/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Strategy<A> {
[INFO] [stdout]    |           -------- methods in this trait
[INFO] [stdout] 11 |     fn authenticate(&self, auth_data: A) -> Result<(), AuthenticationError>;
[INFO] [stdout] 12 |     fn get_name(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 13 |     fn get_description(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_name` and `get_description` are never used
[INFO] [stdout]   --> src/strategies/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Strategy<A> {
[INFO] [stdout]    |           -------- methods in this trait
[INFO] [stdout] 11 |     fn authenticate(&self, auth_data: A) -> Result<(), AuthenticationError>;
[INFO] [stdout] 12 |     fn get_name(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 13 |     fn get_description(&self) -> String;
[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` profile [unoptimized + debuginfo] target(s) in 12.56s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9a26fb77b528c42828ca35bf2020320e6cb222d5d93c30b66061d960c21f70dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a26fb77b528c42828ca35bf2020320e6cb222d5d93c30b66061d960c21f70dd", kill_on_drop: false }`
[INFO] [stdout] 9a26fb77b528c42828ca35bf2020320e6cb222d5d93c30b66061d960c21f70dd