[INFO] cloning repository https://github.com/kespindler/playlog-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kespindler/playlog-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkespindler%2Fplaylog-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkespindler%2Fplaylog-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1a5755b472baa14f9632f268544eb13f6714ed1
[INFO] checking kespindler/playlog-rs against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkespindler%2Fplaylog-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kespindler/playlog-rs on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kespindler/playlog-rs
[INFO] finished tweaking git repo https://github.com/kespindler/playlog-rs
[INFO] tweaked toml for git repo https://github.com/kespindler/playlog-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/kespindler/playlog-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v0.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6ad30ece7eacf1d760e24ce1d5ade74f4ff0deb4fdba3d81d847ac028e1c961
[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" "d6ad30ece7eacf1d760e24ce1d5ade74f4ff0deb4fdba3d81d847ac028e1c961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6ad30ece7eacf1d760e24ce1d5ade74f4ff0deb4fdba3d81d847ac028e1c961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6ad30ece7eacf1d760e24ce1d5ade74f4ff0deb4fdba3d81d847ac028e1c961", kill_on_drop: false }`
[INFO] [stdout] d6ad30ece7eacf1d760e24ce1d5ade74f4ff0deb4fdba3d81d847ac028e1c961
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26ed01c768e5b435d1067980c2f8e8f9e083a65dcf10acee302e3e2ee6a53c4e
[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" "26ed01c768e5b435d1067980c2f8e8f9e083a65dcf10acee302e3e2ee6a53c4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.8
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]     Checking serde_json v1.0.24
[INFO] [stderr]     Checking chrono v0.4.4
[INFO] [stderr]     Checking playlog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/json_handler.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     /// Copied from slog-rs/bunyan
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 |     let mut buf = vec!(0u8; 256);
[INFO] [stdout]    |     ----------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     /// This is a stand-in for now,
[INFO] [stdout] 21 | |     /// but this should be controlled similar to env_logger,
[INFO] [stdout] 22 | |     /// or maybe support other methods for logging control.
[INFO] [stdout]    | |___________________________________________________________^
[INFO] [stdout] 23 |       // TODO implement
[INFO] [stdout] 24 |       Level::Info
[INFO] [stdout]    |       ----------- rustdoc does not generate documentation for expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// This is a stand-in for now, but
[INFO] [stdout] 37 | |     /// eventually we'd have methods to register handlers
[INFO] [stdout] 38 | |     /// for any particular name.
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 39 |       // TODO implement
[INFO] [stdout] 40 | /     let v = vec!{
[INFO] [stdout] 41 | |         DEFAULT_HANDLER,
[INFO] [stdout] 42 | |     };
[INFO] [stdout]    | |______- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/lib.rs:64:1
[INFO] [stdout]    |
[INFO] [stdout] 64 | / macro_rules! log {
[INFO] [stdout] 65 | |     ( $name:expr, $level:expr, $message:expr, $args:expr ) => {
[INFO] [stdout] 66 | |         {
[INFO] [stdout] 67 | |             if __get_log_level($name) >= $level {
[INFO] [stdout] ...  |
[INFO] [stdout] 79 | |     };
[INFO] [stdout] 80 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/map.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/json_handler.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     /// Copied from slog-rs/bunyan
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 18 |     let mut buf = vec!(0u8; 256);
[INFO] [stdout]    |     ----------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     /// This is a stand-in for now,
[INFO] [stdout] 21 | |     /// but this should be controlled similar to env_logger,
[INFO] [stdout] 22 | |     /// or maybe support other methods for logging control.
[INFO] [stdout]    | |___________________________________________________________^
[INFO] [stdout] 23 |       // TODO implement
[INFO] [stdout] 24 |       Level::Info
[INFO] [stdout]    |       ----------- rustdoc does not generate documentation for expressions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// This is a stand-in for now, but
[INFO] [stdout] 37 | |     /// eventually we'd have methods to register handlers
[INFO] [stdout] 38 | |     /// for any particular name.
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 39 |       // TODO implement
[INFO] [stdout] 40 | /     let v = vec!{
[INFO] [stdout] 41 | |         DEFAULT_HANDLER,
[INFO] [stdout] 42 | |     };
[INFO] [stdout]    | |______- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/lib.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn __get_log_level(name: &str) -> Level {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/lib.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn __get_log_handlers(name: &str) -> Vec<impl Handler> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_HANDLER`
[INFO] [stdout]   --> src/lib.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / const DEFAULT_HANDLER: JsonHandler = JsonHandler{
[INFO] [stdout] 29 | |     /// Stand-in for now. We do want a sane default, but
[INFO] [stdout] 30 | |     /// Json is probably not that sane default.
[INFO] [stdout] 31 | |     pretty_print: true
[INFO] [stdout] 32 | | };
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/lib.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn __get_log_level(name: &str) -> Level {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/lib.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn __get_log_handlers(name: &str) -> Vec<impl Handler> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/map.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     #[macro_use]
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     #[macro_use]
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/json_handler.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         stdout().write(s.as_bytes());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/json_handler.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         stdout().write(s.as_bytes());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.67s
[INFO] running `Command { std: "docker" "inspect" "26ed01c768e5b435d1067980c2f8e8f9e083a65dcf10acee302e3e2ee6a53c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26ed01c768e5b435d1067980c2f8e8f9e083a65dcf10acee302e3e2ee6a53c4e", kill_on_drop: false }`
[INFO] [stdout] 26ed01c768e5b435d1067980c2f8e8f9e083a65dcf10acee302e3e2ee6a53c4e