[INFO] cloning repository https://github.com/zjhken/jh-s3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zjhken/jh-s3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzjhken%2Fjh-s3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzjhken%2Fjh-s3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f2454e7588ad8d4374b51139e838381e9e1c5a3
[INFO] checking zjhken/jh-s3 against try#d534db0721b23cf977073bf4cd306dbf501e6b4d for pr-138499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzjhken%2Fjh-s3" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zjhken/jh-s3 on toolchain d534db0721b23cf977073bf4cd306dbf501e6b4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d534db0721b23cf977073bf4cd306dbf501e6b4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zjhken/jh-s3
[INFO] finished tweaking git repo https://github.com/zjhken/jh-s3
[INFO] tweaked toml for git repo https://github.com/zjhken/jh-s3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zjhken/jh-s3 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" "+d534db0721b23cf977073bf4cd306dbf501e6b4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+d534db0721b23cf977073bf4cd306dbf501e6b4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90a697b097ce257842c4e12427003aed0659ee57aefd90b75d111b0bd0d20d0d
[INFO] running `Command { std: "docker" "start" "-a" "90a697b097ce257842c4e12427003aed0659ee57aefd90b75d111b0bd0d20d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90a697b097ce257842c4e12427003aed0659ee57aefd90b75d111b0bd0d20d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90a697b097ce257842c4e12427003aed0659ee57aefd90b75d111b0bd0d20d0d", kill_on_drop: false }`
[INFO] [stdout] 90a697b097ce257842c4e12427003aed0659ee57aefd90b75d111b0bd0d20d0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+d534db0721b23cf977073bf4cd306dbf501e6b4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8331766194bbca7d93c63e5b16dc82365c8496f49a0354c58f1298390ff46ea5
[INFO] running `Command { std: "docker" "start" "-a" "8331766194bbca7d93c63e5b16dc82365c8496f49a0354c58f1298390ff46ea5", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `chrono::DateTime`
[INFO] [stdout]  --> src/aws_sig_v4.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::DateTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing::info`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use tracing::info;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::DateTime`
[INFO] [stdout]  --> src/aws_sig_v4.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::DateTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing::info`
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use tracing::info;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ListObjectParams`
[INFO] [stdout]    --> src/lib.rs:128:16
[INFO] [stdout]     |
[INFO] [stdout] 128 |         object_api::{ListObjectParams, ListObjectParamsBuilder},
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/object_api.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub async fn put_object<P>(&self, path: P) -> Result<()>
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/object_api.rs:37:36
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub async fn put_object<P>(&self, path: P) -> Result<()>
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in an async block that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/object_api.rs:154:42
[INFO] [stdout]     |
[INFO] [stdout] 153 |         task::block_on(async {
[INFO] [stdout]     |                        ----- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 154 |             let file = File::open(file_path).await?;
[INFO] [stdout]     |                                                   ^ cannot use the `?` operator in an async block that returns `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in an async block that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/object_api.rs:155:41
[INFO] [stdout]     |
[INFO] [stdout] 153 |         task::block_on(async {
[INFO] [stdout]     |                        ----- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 154 |             let file = File::open(file_path).await?;
[INFO] [stdout] 155 |             let file_size = file.metadata().await?.len();
[INFO] [stdout]     |                                                  ^ cannot use the `?` operator in an async block that returns `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/lib.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |             Some(path) => {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `code`, `message`, `resource`, and `request_id` are never read
[INFO] [stdout]    --> src/lib.rs:119:2
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct S3Error {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 119 |     code: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 120 |     message: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 121 |     resource: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 122 |     request_id: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `S3Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `type` and `md_map` are never read
[INFO] [stdout]   --> src/object_api.rs:93:2
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct QueryMds {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 93 |     r#type: QueryMetadataType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 94 |     md_map: MdMap,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QueryMds` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `entry` is never read
[INFO] [stdout]    --> src/object_api.rs:105:2
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct MdMap {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 105 |     entry: Vec<Entry>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MdMap` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `value` are never read
[INFO] [stdout]    --> src/object_api.rs:110:2
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct Entry {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 110 |     key: String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 111 |     value: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Entry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/lib.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |             Some(path) => {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jh-s3` (lib test) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8331766194bbca7d93c63e5b16dc82365c8496f49a0354c58f1298390ff46ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8331766194bbca7d93c63e5b16dc82365c8496f49a0354c58f1298390ff46ea5", kill_on_drop: false }`
[INFO] [stdout] 8331766194bbca7d93c63e5b16dc82365c8496f49a0354c58f1298390ff46ea5