[INFO] cloning repository https://github.com/gundogdutekin/rust__tutorial-
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gundogdutekin/rust__tutorial-" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgundogdutekin%2Frust__tutorial-", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgundogdutekin%2Frust__tutorial-'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6509aae6efecd19c78ba9269a5476fa0631d0770
[INFO] checking gundogdutekin/rust__tutorial- against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgundogdutekin%2Frust__tutorial-" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gundogdutekin/rust__tutorial- 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/gundogdutekin/rust__tutorial-
[INFO] finished tweaking git repo https://github.com/gundogdutekin/rust__tutorial-
[INFO] tweaked toml for git repo https://github.com/gundogdutekin/rust__tutorial- written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gundogdutekin/rust__tutorial- 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 qrcode-generator v4.1.9
[INFO] [stderr]   Downloaded qrcodegen v1.8.0
[INFO] [stderr]   Downloaded colorgrad v0.6.2
[INFO] [stderr]   Downloaded csscolorparser v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 68c7a70f14e87d2d32017bd0e23c86b76f924058c7db2164e91489dedc25de41
[INFO] running `Command { std: "docker" "start" "-a" "68c7a70f14e87d2d32017bd0e23c86b76f924058c7db2164e91489dedc25de41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68c7a70f14e87d2d32017bd0e23c86b76f924058c7db2164e91489dedc25de41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c7a70f14e87d2d32017bd0e23c86b76f924058c7db2164e91489dedc25de41", kill_on_drop: false }`
[INFO] [stdout] 68c7a70f14e87d2d32017bd0e23c86b76f924058c7db2164e91489dedc25de41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3404c98d7c71e6f8dc6a76955aacc40fe16f16bc21bf0d06c11dedea71ef8a64
[INFO] running `Command { std: "docker" "start" "-a" "3404c98d7c71e6f8dc6a76955aacc40fe16f16bc21bf0d06c11dedea71ef8a64", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.18
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[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling syn v2.0.49
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling typed-arena v2.0.2
[INFO] [stderr]     Checking futures-sink v0.3.30
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[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling rand v0.8.5
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[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking sha2 v0.10.8
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[INFO] [stderr]     Checking ic0 v0.21.1
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[INFO] [stderr]    Compiling generic-array v0.14.7
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[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking image v0.24.8
[INFO] [stderr]     Checking qrcode-generator v4.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling candid_derive v0.6.5
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking csscolorparser v0.6.2
[INFO] [stderr]     Checking colorgrad v0.6.2
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling binread_derive v2.1.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling binread v2.2.0
[INFO] [stderr]     Checking ic_principal v0.1.1
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[INFO] [stderr]    Compiling serde_tokenstream v0.1.7
[INFO] [stderr]     Checking candid v0.10.3
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[INFO] [stderr]     Checking ic-cdk v0.12.1
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[INFO] [stderr]     Checking qrcode_backend v0.1.0 (/opt/rustwide/workdir/src/qrcode_backend)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.33s
[INFO] running `Command { std: "docker" "inspect" "3404c98d7c71e6f8dc6a76955aacc40fe16f16bc21bf0d06c11dedea71ef8a64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3404c98d7c71e6f8dc6a76955aacc40fe16f16bc21bf0d06c11dedea71ef8a64", kill_on_drop: false }`
[INFO] [stdout] 3404c98d7c71e6f8dc6a76955aacc40fe16f16bc21bf0d06c11dedea71ef8a64