[INFO] fetching crate winston 0.2.0...
[INFO] checking winston-0.2.0 against master#068609ce766e55d2e7371cd2a86143a6d7e8e2e4 for pr-138952
[INFO] extracting crate winston 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate winston 0.2.0 on toolchain 068609ce766e55d2e7371cd2a86143a6d7e8e2e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate winston 0.2.0
[INFO] finished tweaking crates.io crate winston 0.2.0
[INFO] tweaked toml for crates.io crate winston 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 96 packages to latest compatible versions
[INFO] [stderr]       Adding logform v0.3.1 (available: v0.4.0)
[INFO] [stderr]       Adding winston_transport v0.3.1 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parse_datetime v0.6.0
[INFO] [stderr]   Downloaded dateparser v0.2.1
[INFO] [stderr]   Downloaded winston_transport v0.3.1
[INFO] [stderr]   Downloaded logform v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9482b95905439466f8eb74329ca0c65d6eb6219661df61980a2ae7c100474e83
[INFO] running `Command { std: "docker" "start" "-a" "9482b95905439466f8eb74329ca0c65d6eb6219661df61980a2ae7c100474e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9482b95905439466f8eb74329ca0c65d6eb6219661df61980a2ae7c100474e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9482b95905439466f8eb74329ca0c65d6eb6219661df61980a2ae7c100474e83", kill_on_drop: false }`
[INFO] [stdout] 9482b95905439466f8eb74329ca0c65d6eb6219661df61980a2ae7c100474e83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e59c242e782cba622749056c7b60bb7f9710e8bb983f62a2d587b24524fe3b48
[INFO] running `Command { std: "docker" "start" "-a" "e59c242e782cba622749056c7b60bb7f9710e8bb983f62a2d587b24524fe3b48", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking iana-time-zone v0.1.62
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking half v2.5.0
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking clap_builder v4.5.34
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[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking crossbeam-channel v0.5.14
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking once_cell v1.21.1
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking clap v4.5.34
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking parse_datetime v0.6.0
[INFO] [stderr]     Checking dateparser v0.2.1
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking logform v0.3.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking winston_transport v0.3.1
[INFO] [stderr]     Checking winston v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/logger.rs:290:20
[INFO] [stdout]     |
[INFO] [stdout] 290 |         if let Err(e) = self.sender.try_send(LogMessage::Entry(entry.clone())) {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Configure` is never constructed
[INFO] [stdout]   --> src/logger.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum LogMessage {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 17 |     Entry(LogInfo),
[INFO] [stdout] 18 |     Configure(LoggerOptions),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LogMessage` 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: associated function `new` is never used
[INFO] [stdout]   --> tests/common/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl DelayedTransport {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(delay: Duration) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_filename` is never used
[INFO] [stdout]   --> tests/common/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn generate_random_filename() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_filename` is never used
[INFO] [stdout]   --> tests/common/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn generate_random_filename() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> tests/common/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl DelayedTransport {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(delay: Duration) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_filename` is never used
[INFO] [stdout]   --> tests/common/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn generate_random_filename() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_file_if_exists` is never used
[INFO] [stdout]   --> tests/common/mod.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn delete_file_if_exists(file_path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> tests/common/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl DelayedTransport {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(delay: Duration) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_filename` is never used
[INFO] [stdout]   --> tests/common/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn generate_random_filename() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_file_if_exists` is never used
[INFO] [stdout]   --> tests/common/mod.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn delete_file_if_exists(file_path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/logger.rs:290:20
[INFO] [stdout]     |
[INFO] [stdout] 290 |         if let Err(e) = self.sender.try_send(LogMessage::Entry(entry.clone())) {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Configure` is never constructed
[INFO] [stdout]   --> src/logger.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum LogMessage {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 17 |     Entry(LogInfo),
[INFO] [stdout] 18 |     Configure(LoggerOptions),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LogMessage` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.33s
[INFO] running `Command { std: "docker" "inspect" "e59c242e782cba622749056c7b60bb7f9710e8bb983f62a2d587b24524fe3b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e59c242e782cba622749056c7b60bb7f9710e8bb983f62a2d587b24524fe3b48", kill_on_drop: false }`
[INFO] [stdout] e59c242e782cba622749056c7b60bb7f9710e8bb983f62a2d587b24524fe3b48