[INFO] fetching crate armerge 1.5.1...
[INFO] checking armerge-1.5.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate armerge 1.5.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate armerge 1.5.1 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 armerge 1.5.1
[INFO] finished tweaking crates.io crate armerge 1.5.1
[INFO] tweaked toml for crates.io crate armerge 1.5.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate armerge 1.5.1 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.1
[INFO] [stderr]   Downloaded matchers v0.1.0
[INFO] [stderr]   Downloaded scroll_derive v0.10.5
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[INFO] [stderr]   Downloaded either v1.7.0
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[INFO] [stderr]   Downloaded scroll v0.10.2
[INFO] [stderr]   Downloaded ar v0.9.0
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded object v0.29.0
[INFO] [stderr]   Downloaded object v0.28.4
[INFO] [stderr]   Downloaded backtrace v0.3.65
[INFO] [stderr]   Downloaded goblin v0.4.1
[INFO] [stderr]   Downloaded gimli v0.26.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded anyhow v1.0.58
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.5
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.9
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.14
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4339b767890a8578f2e5ba6c2d9d036f728e7963ebaf17790f4c934138ea7668
[INFO] running `Command { std: "docker" "start" "-a" "4339b767890a8578f2e5ba6c2d9d036f728e7963ebaf17790f4c934138ea7668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4339b767890a8578f2e5ba6c2d9d036f728e7963ebaf17790f4c934138ea7668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4339b767890a8578f2e5ba6c2d9d036f728e7963ebaf17790f4c934138ea7668", kill_on_drop: false }`
[INFO] [stdout] 4339b767890a8578f2e5ba6c2d9d036f728e7963ebaf17790f4c934138ea7668
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01e29ca599f51579810a2fa5a44e62c9762541a1cc58c334cfd8abda3ae72fb0
[INFO] running `Command { std: "docker" "start" "-a" "01e29ca599f51579810a2fa5a44e62c9762541a1cc58c334cfd8abda3ae72fb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling rayon-core v1.9.3
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[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]     Checking rustc-demangle v0.1.21
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[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking crossbeam-deque v0.8.1
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[INFO] [stderr]    Compiling proc-macro-error v1.0.4
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[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking goblin v0.4.1
[INFO] [stderr]     Checking tracing v0.1.35
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[INFO] [stderr]     Checking tracing-subscriber v0.3.14
[INFO] [stderr]     Checking objpoke v0.3.0
[INFO] [stderr]     Checking armerge v1.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `IntoParallelIterator` is imported redundantly
[INFO] [stdout]  --> src/objects/filter_deps.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::iter::IntoParallelIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 | use rayon::prelude::*;
[INFO] [stdout]   |     ----------------- the item `IntoParallelIterator` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoParallelIterator` is imported redundantly
[INFO] [stdout]  --> src/objects/filter_deps.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rayon::iter::IntoParallelIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 | use rayon::prelude::*;
[INFO] [stdout]   |     ----------------- the item `IntoParallelIterator` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kept_syms_list` is never read
[INFO] [stdout]   --> src/objects/syms.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct ObjectSyms {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub kept_syms_list: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kept_syms_list` is never read
[INFO] [stdout]   --> src/objects/syms.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct ObjectSyms {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub kept_syms_list: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.36s
[INFO] running `Command { std: "docker" "inspect" "01e29ca599f51579810a2fa5a44e62c9762541a1cc58c334cfd8abda3ae72fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e29ca599f51579810a2fa5a44e62c9762541a1cc58c334cfd8abda3ae72fb0", kill_on_drop: false }`
[INFO] [stdout] 01e29ca599f51579810a2fa5a44e62c9762541a1cc58c334cfd8abda3ae72fb0