[INFO] cloning repository https://github.com/StackDoubleFlow/SignSearch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StackDoubleFlow/SignSearch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStackDoubleFlow%2FSignSearch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStackDoubleFlow%2FSignSearch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26b02a384a00382ecf48b70c7e9dcae042f3f8be
[INFO] checking StackDoubleFlow/SignSearch against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStackDoubleFlow%2FSignSearch" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StackDoubleFlow/SignSearch 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/StackDoubleFlow/SignSearch
[INFO] finished tweaking git repo https://github.com/StackDoubleFlow/SignSearch
[INFO] tweaked toml for git repo https://github.com/StackDoubleFlow/SignSearch written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/StackDoubleFlow/SignSearch 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 git repository `https://github.com/PistonDevelopers/hematite_nbt`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_derive v3.0.0-beta.5
[INFO] [stderr]   Downloaded os_str_bytes v4.2.0
[INFO] [stderr]   Downloaded clap v3.0.0-beta.5
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af04287175b98305bcf4254f6be940e0e39e7884fd8efaaa4136d59465349608
[INFO] running `Command { std: "docker" "start" "-a" "af04287175b98305bcf4254f6be940e0e39e7884fd8efaaa4136d59465349608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af04287175b98305bcf4254f6be940e0e39e7884fd8efaaa4136d59465349608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af04287175b98305bcf4254f6be940e0e39e7884fd8efaaa4136d59465349608", kill_on_drop: false }`
[INFO] [stdout] af04287175b98305bcf4254f6be940e0e39e7884fd8efaaa4136d59465349608
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff36ef04e3e0285ac82d60342b8874a069006143d0662a873e0769e221caf53d
[INFO] running `Command { std: "docker" "start" "-a" "ff36ef04e3e0285ac82d60342b8874a069006143d0662a873e0769e221caf53d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking hematite-nbt v0.5.2 (https://github.com/PistonDevelopers/hematite_nbt#ce60b817)
[INFO] [stderr]     Checking sign_search v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.90s
[INFO] running `Command { std: "docker" "inspect" "ff36ef04e3e0285ac82d60342b8874a069006143d0662a873e0769e221caf53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff36ef04e3e0285ac82d60342b8874a069006143d0662a873e0769e221caf53d", kill_on_drop: false }`
[INFO] [stdout] ff36ef04e3e0285ac82d60342b8874a069006143d0662a873e0769e221caf53d
[INFO] checking StackDoubleFlow/SignSearch against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStackDoubleFlow%2FSignSearch" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StackDoubleFlow/SignSearch 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/StackDoubleFlow/SignSearch
[INFO] finished tweaking git repo https://github.com/StackDoubleFlow/SignSearch
[INFO] tweaked toml for git repo https://github.com/StackDoubleFlow/SignSearch written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/StackDoubleFlow/SignSearch 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3de6898bf7157e2a7174bb124cb22da39662826439f2568c540d3dd9ac2983e0
[INFO] running `Command { std: "docker" "start" "-a" "3de6898bf7157e2a7174bb124cb22da39662826439f2568c540d3dd9ac2983e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3de6898bf7157e2a7174bb124cb22da39662826439f2568c540d3dd9ac2983e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de6898bf7157e2a7174bb124cb22da39662826439f2568c540d3dd9ac2983e0", kill_on_drop: false }`
[INFO] [stdout] 3de6898bf7157e2a7174bb124cb22da39662826439f2568c540d3dd9ac2983e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d209560d1fb78fc56781abf582ec97fbc273f697990d4c652ce54d5dee2ac0da
[INFO] running `Command { std: "docker" "start" "-a" "d209560d1fb78fc56781abf582ec97fbc273f697990d4c652ce54d5dee2ac0da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking hematite-nbt v0.5.2 (https://github.com/PistonDevelopers/hematite_nbt#ce60b817)
[INFO] [stderr]     Checking sign_search v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.01s
[INFO] running `Command { std: "docker" "inspect" "d209560d1fb78fc56781abf582ec97fbc273f697990d4c652ce54d5dee2ac0da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d209560d1fb78fc56781abf582ec97fbc273f697990d4c652ce54d5dee2ac0da", kill_on_drop: false }`
[INFO] [stdout] d209560d1fb78fc56781abf582ec97fbc273f697990d4c652ce54d5dee2ac0da