[INFO] cloning repository https://github.com/tux3/armerge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tux3/armerge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftux3%2Farmerge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftux3%2Farmerge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28c9975a6df4ecc3d73f25cbe492f49aa431f5f6
[INFO] checking tux3/armerge against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftux3%2Farmerge" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tux3/armerge on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tux3/armerge
[INFO] finished tweaking git repo https://github.com/tux3/armerge
[INFO] tweaked toml for git repo https://github.com/tux3/armerge written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tux3/armerge 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded objpoke v0.3.0
[INFO] [stderr]   Downloaded ar v0.9.0
[INFO] [stderr]   Downloaded goblin v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53730106d0274601164a2c68999361e105686f40147930cbd4cd143441879432
[INFO] running `Command { std: "docker" "start" "-a" "53730106d0274601164a2c68999361e105686f40147930cbd4cd143441879432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53730106d0274601164a2c68999361e105686f40147930cbd4cd143441879432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53730106d0274601164a2c68999361e105686f40147930cbd4cd143441879432", kill_on_drop: false }`
[INFO] [stdout] 53730106d0274601164a2c68999361e105686f40147930cbd4cd143441879432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e727b06fe35e576bb5b77223303d27089dafe9e54708da57cbf71106c9f10143
[INFO] running `Command { std: "docker" "start" "-a" "e727b06fe35e576bb5b77223303d27089dafe9e54708da57cbf71106c9f10143", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.87
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ar v0.9.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking goblin v0.4.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking thiserror v1.0.57
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking objpoke v0.3.0
[INFO] [stderr]     Checking armerge v2.0.0 (/opt/rustwide/workdir)
[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: 1 warning 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.01s
[INFO] running `Command { std: "docker" "inspect" "e727b06fe35e576bb5b77223303d27089dafe9e54708da57cbf71106c9f10143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e727b06fe35e576bb5b77223303d27089dafe9e54708da57cbf71106c9f10143", kill_on_drop: false }`
[INFO] [stdout] e727b06fe35e576bb5b77223303d27089dafe9e54708da57cbf71106c9f10143
[INFO] checking tux3/armerge against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftux3%2Farmerge" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tux3/armerge on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tux3/armerge
[INFO] finished tweaking git repo https://github.com/tux3/armerge
[INFO] tweaked toml for git repo https://github.com/tux3/armerge written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tux3/armerge 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbafaf8652b51d8888e5ec7d136b18f7e0b1f9bfab914c53d08097b77ce7fca4
[INFO] running `Command { std: "docker" "start" "-a" "cbafaf8652b51d8888e5ec7d136b18f7e0b1f9bfab914c53d08097b77ce7fca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbafaf8652b51d8888e5ec7d136b18f7e0b1f9bfab914c53d08097b77ce7fca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbafaf8652b51d8888e5ec7d136b18f7e0b1f9bfab914c53d08097b77ce7fca4", kill_on_drop: false }`
[INFO] [stdout] cbafaf8652b51d8888e5ec7d136b18f7e0b1f9bfab914c53d08097b77ce7fca4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1613acc098efc72d9b295134f7af1aa0861fe0036cb026755e053613470345a0
[INFO] running `Command { std: "docker" "start" "-a" "1613acc098efc72d9b295134f7af1aa0861fe0036cb026755e053613470345a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling cc v1.0.87
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ar v0.9.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking goblin v0.4.1
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking thiserror v1.0.57
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking objpoke v0.3.0
[INFO] [stderr]     Checking armerge v2.0.0 (/opt/rustwide/workdir)
[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: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.01s
[INFO] running `Command { std: "docker" "inspect" "1613acc098efc72d9b295134f7af1aa0861fe0036cb026755e053613470345a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1613acc098efc72d9b295134f7af1aa0861fe0036cb026755e053613470345a0", kill_on_drop: false }`
[INFO] [stdout] 1613acc098efc72d9b295134f7af1aa0861fe0036cb026755e053613470345a0