[INFO] fetching crate servlin 0.4.3...
[INFO] checking servlin-0.4.3 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate servlin 0.4.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate servlin 0.4.3 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate servlin 0.4.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate servlin 0.4.3
[INFO] tweaked toml for crates.io crate servlin 0.4.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate servlin 0.4.3 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded temp-dir v0.1.11
[INFO] [stderr]   Downloaded safe-regex v0.2.5
[INFO] [stderr]   Downloaded safe-regex-macro v0.2.5
[INFO] [stderr]   Downloaded safe-regex-compiler v0.2.5
[INFO] [stderr]   Downloaded safe-proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded async-task v4.5.0
[INFO] [stderr]   Downloaded fixed-buffer v0.5.0
[INFO] [stderr]   Downloaded event-listener v4.0.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.17
[INFO] [stderr]   Downloaded safe-quote v1.0.15
[INFO] [stderr]   Downloaded safina-threadpool v0.2.4
[INFO] [stderr]   Downloaded safina-executor v0.3.3
[INFO] [stderr]   Downloaded safina-timer v0.1.11
[INFO] [stderr]   Downloaded safina-sync v0.2.4
[INFO] [stderr]   Downloaded permit v0.2.1
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d34d28b64b1478b57fe98ca59b92fe201f01f2bd6924c637a330142e75f4582
[INFO] running `Command { std: "docker" "start" "-a" "9d34d28b64b1478b57fe98ca59b92fe201f01f2bd6924c637a330142e75f4582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d34d28b64b1478b57fe98ca59b92fe201f01f2bd6924c637a330142e75f4582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d34d28b64b1478b57fe98ca59b92fe201f01f2bd6924c637a330142e75f4582", kill_on_drop: false }`
[INFO] [stdout] 9d34d28b64b1478b57fe98ca59b92fe201f01f2bd6924c637a330142e75f4582
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da417e5e3c3891746d517f80882064edd5e723240d5a736de2a67fb28916ab40
[INFO] running `Command { std: "docker" "start" "-a" "da417e5e3c3891746d517f80882064edd5e723240d5a736de2a67fb28916ab40", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling crossbeam-utils v0.8.17
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.67
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking event-listener v4.0.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling safe-quote v1.0.15
[INFO] [stderr]     Checking futures-lite v2.1.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
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[INFO] [stderr]     Checking linux-raw-sys v0.3.8
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[INFO] [stderr]     Checking async-lock v3.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling safe-regex-compiler v0.2.5
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking safina-threadpool v0.2.4
[INFO] [stderr]     Checking safina-sync v0.2.4
[INFO] [stderr]     Checking safina-timer v0.1.11
[INFO] [stderr]     Checking safina-executor v0.3.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking fixed-buffer v0.5.0
[INFO] [stderr]     Checking permit v0.2.1
[INFO] [stderr]    Compiling safe-regex-macro v0.2.5
[INFO] [stderr]     Checking temp-dir v0.1.11
[INFO] [stderr]     Checking temp-file v0.1.7
[INFO] [stderr]     Checking safe-regex v0.2.5
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking async-net v1.8.0
[INFO] [stderr]     Checking servlin v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/log/log_file_writer.rs:137:26
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct LogFileWriter(Sender<LogEvent>);
[INFO] [stdout]     |            ------------- ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `LogFileWriter` has a derived impl for the trait `Clone`, 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/log/log_file_writer.rs:137:26
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub struct LogFileWriter(Sender<LogEvent>);
[INFO] [stdout]     |            ------------- ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `LogFileWriter` has a derived impl for the trait `Clone`, 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.38s
[INFO] running `Command { std: "docker" "inspect" "da417e5e3c3891746d517f80882064edd5e723240d5a736de2a67fb28916ab40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da417e5e3c3891746d517f80882064edd5e723240d5a736de2a67fb28916ab40", kill_on_drop: false }`
[INFO] [stdout] da417e5e3c3891746d517f80882064edd5e723240d5a736de2a67fb28916ab40