[INFO] fetching crate beisen 0.1.11...
[INFO] checking beisen-0.1.11 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate beisen 0.1.11 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate beisen 0.1.11 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate beisen 0.1.11
[INFO] finished tweaking crates.io crate beisen 0.1.11
[INFO] tweaked toml for crates.io crate beisen 0.1.11 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate beisen 0.1.11 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.81
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.81
[INFO] [stderr]   Downloaded async-recursion v1.0.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.31
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] [stderr]   Downloaded openssl-sys v0.9.74
[INFO] [stderr]   Downloaded js-sys v0.3.58
[INFO] [stderr]   Downloaded hyper v0.14.19
[INFO] [stderr]   Downloaded syn v1.0.96
[INFO] [stderr]   Downloaded tokio v1.19.2
[INFO] [stderr]   Downloaded web-sys v0.3.58
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.81
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.81
[INFO] [stderr]   Downloaded tracing-core v0.1.27
[INFO] [stderr]   Downloaded once_cell v1.12.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9927222bc802ee40bddb68f2080db509fd1982394b3cfc2ce3372c3ce0fa80b9
[INFO] running `Command { std: "docker" "start" "-a" "9927222bc802ee40bddb68f2080db509fd1982394b3cfc2ce3372c3ce0fa80b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9927222bc802ee40bddb68f2080db509fd1982394b3cfc2ce3372c3ce0fa80b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9927222bc802ee40bddb68f2080db509fd1982394b3cfc2ce3372c3ce0fa80b9", kill_on_drop: false }`
[INFO] [stdout] 9927222bc802ee40bddb68f2080db509fd1982394b3cfc2ce3372c3ce0fa80b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3014e9bd5460a182feac51aa7a6de08fce7718f44eb2dc5d4ff005d7ee249b91
[INFO] running `Command { std: "docker" "start" "-a" "3014e9bd5460a182feac51aa7a6de08fce7718f44eb2dc5d4ff005d7ee249b91", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking tracing-core v0.1.27
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling async-trait v0.1.56
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling async-recursion v1.0.0
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.11
[INFO] [stderr]     Checking beisen v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/utils/datetime/date_format.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]   |             ^^^^ the item `serde` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/utils/datetime/date_format.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]   |             ^^^^ the item `serde` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.75s
[INFO] running `Command { std: "docker" "inspect" "3014e9bd5460a182feac51aa7a6de08fce7718f44eb2dc5d4ff005d7ee249b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3014e9bd5460a182feac51aa7a6de08fce7718f44eb2dc5d4ff005d7ee249b91", kill_on_drop: false }`
[INFO] [stdout] 3014e9bd5460a182feac51aa7a6de08fce7718f44eb2dc5d4ff005d7ee249b91
[INFO] checking beisen-0.1.11 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate beisen 0.1.11 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate beisen 0.1.11 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate beisen 0.1.11
[INFO] finished tweaking crates.io crate beisen 0.1.11
[INFO] tweaked toml for crates.io crate beisen 0.1.11 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate beisen 0.1.11 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" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ff257ccdc7183383265cfd15195d80734748ee8574566209ba40e30f145a0ba
[INFO] running `Command { std: "docker" "start" "-a" "2ff257ccdc7183383265cfd15195d80734748ee8574566209ba40e30f145a0ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ff257ccdc7183383265cfd15195d80734748ee8574566209ba40e30f145a0ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff257ccdc7183383265cfd15195d80734748ee8574566209ba40e30f145a0ba", kill_on_drop: false }`
[INFO] [stdout] 2ff257ccdc7183383265cfd15195d80734748ee8574566209ba40e30f145a0ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dfcaae92ebde9bfbb0f4878de4d04a49d58e530af262e8f02e2ae9883b7ed3e
[INFO] running `Command { std: "docker" "start" "-a" "2dfcaae92ebde9bfbb0f4878de4d04a49d58e530af262e8f02e2ae9883b7ed3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking tracing-core v0.1.27
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling async-trait v0.1.56
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling async-recursion v1.0.0
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.11
[INFO] [stderr]     Checking beisen v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/utils/datetime/date_format.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]   |             ^^^^ the item `serde` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/utils/datetime/date_format.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]   |             ^^^^ the item `serde` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.11s
[INFO] running `Command { std: "docker" "inspect" "2dfcaae92ebde9bfbb0f4878de4d04a49d58e530af262e8f02e2ae9883b7ed3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dfcaae92ebde9bfbb0f4878de4d04a49d58e530af262e8f02e2ae9883b7ed3e", kill_on_drop: false }`
[INFO] [stdout] 2dfcaae92ebde9bfbb0f4878de4d04a49d58e530af262e8f02e2ae9883b7ed3e
