[INFO] fetching crate pprof-backtrace 0.3.63...
[INFO] checking pprof-backtrace-0.3.63 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate pprof-backtrace 0.3.63 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate pprof-backtrace 0.3.63 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pprof-backtrace 0.3.63
[INFO] removed 0 missing examples
[INFO] removed 1 missing tests
[INFO] finished tweaking crates.io crate pprof-backtrace 0.3.63
[INFO] tweaked toml for crates.io crate pprof-backtrace 0.3.63 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate pprof-backtrace 0.3.63 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.148
[INFO] [stderr]   Downloaded serde v1.0.148
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 609fc8552eee8e0c3f7465079ca6265c4f848b11f7083136bdfde0b7d7441474
[INFO] running `Command { std: "docker" "start" "-a" "609fc8552eee8e0c3f7465079ca6265c4f848b11f7083136bdfde0b7d7441474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "609fc8552eee8e0c3f7465079ca6265c4f848b11f7083136bdfde0b7d7441474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "609fc8552eee8e0c3f7465079ca6265c4f848b11f7083136bdfde0b7d7441474", kill_on_drop: false }`
[INFO] [stdout] 609fc8552eee8e0c3f7465079ca6265c4f848b11f7083136bdfde0b7d7441474
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2029ee0a4a3b755af9e319acdac3c8cf3e21a7956dd25e6c642834f941e97089
[INFO] running `Command { std: "docker" "start" "-a" "2029ee0a4a3b755af9e319acdac3c8cf3e21a7956dd25e6c642834f941e97089", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling pprof-backtrace v0.3.63 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]    --> src/symbolize/gimli.rs:407:14
[INFO] [stdout]     |
[INFO] [stdout] 407 |     Symtab { addr: *mut c_void, name: &'a [u8] },
[INFO] [stdout]     |     ------   ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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 `addr` is never read
[INFO] [stdout]    --> src/symbolize/gimli.rs:407:14
[INFO] [stdout]     |
[INFO] [stdout] 407 |     Symtab { addr: *mut c_void, name: &'a [u8] },
[INFO] [stdout]     |     ------   ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[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 5.64s
[INFO] running `Command { std: "docker" "inspect" "2029ee0a4a3b755af9e319acdac3c8cf3e21a7956dd25e6c642834f941e97089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2029ee0a4a3b755af9e319acdac3c8cf3e21a7956dd25e6c642834f941e97089", kill_on_drop: false }`
[INFO] [stdout] 2029ee0a4a3b755af9e319acdac3c8cf3e21a7956dd25e6c642834f941e97089