[INFO] fetching crate serde_cef 0.1.0...
[INFO] checking serde_cef-0.1.0 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate serde_cef 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate serde_cef 0.1.0 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_cef 0.1.0
[INFO] finished tweaking crates.io crate serde_cef 0.1.0
[INFO] tweaked toml for crates.io crate serde_cef 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-value-flatten v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca9a99a6c5275e2f212899591e48cffb7d0a066f6d1ea65380824768ecfecb7f
[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" "ca9a99a6c5275e2f212899591e48cffb7d0a066f6d1ea65380824768ecfecb7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca9a99a6c5275e2f212899591e48cffb7d0a066f6d1ea65380824768ecfecb7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca9a99a6c5275e2f212899591e48cffb7d0a066f6d1ea65380824768ecfecb7f", kill_on_drop: false }`
[INFO] [stdout] ca9a99a6c5275e2f212899591e48cffb7d0a066f6d1ea65380824768ecfecb7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fa638e3bf8f9f5922cedd866427fb4dd33b8811c3f6ea176c32e3f5289741754
[INFO] running `Command { std: "docker" "start" "-a" "fa638e3bf8f9f5922cedd866427fb4dd33b8811c3f6ea176c32e3f5289741754", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking serde-value-flatten v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking serde_cef v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Cursor`, `Write`
[INFO] [stdout]  --> src/ser.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Cursor, Write};
[INFO] [stdout]   |               ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cursor`, `Write`
[INFO] [stdout]  --> src/ser.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{Cursor, Write};
[INFO] [stdout]   |               ^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rfc3339_to_unix`
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn rfc3339_to_unix(rfc3339: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `english_time_to_unix`
[INFO] [stdout]   --> src/utils.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn english_time_to_unix(et: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unix_strtime_to_unix`
[INFO] [stdout]   --> src/utils.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn unix_strtime_to_unix(et: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `native_to_unix`
[INFO] [stdout]   --> src/utils.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn native_to_unix(et: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_ts`
[INFO] [stdout]   --> src/utils.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn parse_ts(line: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PreciseTimestamp`
[INFO] [stdout]   --> src/utils.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct PreciseTimestamp {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `now`
[INFO] [stdout]   --> src/utils.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn now() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_datetime`
[INFO] [stdout]   --> src/utils.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn from_datetime(tsd: DateTime<FixedOffset>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_f64`
[INFO] [stdout]   --> src/utils.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn as_f64(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `now`
[INFO] [stdout]   --> src/utils.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn now() -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rfc3339_to_unix`
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn rfc3339_to_unix(rfc3339: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `english_time_to_unix`
[INFO] [stdout]   --> src/utils.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn english_time_to_unix(et: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unix_strtime_to_unix`
[INFO] [stdout]   --> src/utils.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn unix_strtime_to_unix(et: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `native_to_unix`
[INFO] [stdout]   --> src/utils.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn native_to_unix(et: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_ts`
[INFO] [stdout]   --> src/utils.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn parse_ts(line: &str) -> CefResult<f64> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PreciseTimestamp`
[INFO] [stdout]   --> src/utils.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct PreciseTimestamp {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `now`
[INFO] [stdout]   --> src/utils.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn now() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_datetime`
[INFO] [stdout]   --> src/utils.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn from_datetime(tsd: DateTime<FixedOffset>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_f64`
[INFO] [stdout]   --> src/utils.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn as_f64(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `now`
[INFO] [stdout]   --> src/utils.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn now() -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.07s
[INFO] running `Command { std: "docker" "inspect" "fa638e3bf8f9f5922cedd866427fb4dd33b8811c3f6ea176c32e3f5289741754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa638e3bf8f9f5922cedd866427fb4dd33b8811c3f6ea176c32e3f5289741754", kill_on_drop: false }`
[INFO] [stdout] fa638e3bf8f9f5922cedd866427fb4dd33b8811c3f6ea176c32e3f5289741754