[INFO] cloning repository https://github.com/Genjedi/ICP-rust-workshop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Genjedi/ICP-rust-workshop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGenjedi%2FICP-rust-workshop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGenjedi%2FICP-rust-workshop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66fde12f0cc6808bee7ca7b74c4600dc5cd7189f
[INFO] checking Genjedi/ICP-rust-workshop against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGenjedi%2FICP-rust-workshop" "/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/Genjedi/ICP-rust-workshop 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/Genjedi/ICP-rust-workshop
[INFO] finished tweaking git repo https://github.com/Genjedi/ICP-rust-workshop
[INFO] tweaked toml for git repo https://github.com/Genjedi/ICP-rust-workshop written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Genjedi/ICP-rust-workshop 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ic0 v0.21.1
[INFO] [stderr]   Downloaded ic-cdk-macros v0.8.4
[INFO] [stderr]   Downloaded ic-cdk v0.12.1
[INFO] [stderr]   Downloaded candid v0.10.3
[INFO] [stderr]   Downloaded png v0.17.12
[INFO] [stderr]   Downloaded colorgrad v0.6.2
[INFO] [stderr]   Downloaded candid_derive v0.6.5
[INFO] [stderr]   Downloaded ic_principal v0.1.1
[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] 458d7fa8ce0df91138be18dd86241a77b9ead8209a3a101149aef0ce3a57aebe
[INFO] running `Command { std: "docker" "start" "-a" "458d7fa8ce0df91138be18dd86241a77b9ead8209a3a101149aef0ce3a57aebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "458d7fa8ce0df91138be18dd86241a77b9ead8209a3a101149aef0ce3a57aebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "458d7fa8ce0df91138be18dd86241a77b9ead8209a3a101149aef0ce3a57aebe", kill_on_drop: false }`
[INFO] [stdout] 458d7fa8ce0df91138be18dd86241a77b9ead8209a3a101149aef0ce3a57aebe
[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] 2944d94662bd775d2f7561ef71c231836658eb9c202d8fcc0df56ea498b37f5f
[INFO] running `Command { std: "docker" "start" "-a" "2944d94662bd775d2f7561ef71c231836658eb9c202d8fcc0df56ea498b37f5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.49
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pretty v0.12.3
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]     Checking utf8-width v0.1.7
[INFO] [stderr]     Checking bytemuck v1.14.3
[INFO] [stderr]     Checking html-escape v0.2.13
[INFO] [stderr]     Checking qrcodegen v1.8.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking ic0 v0.21.1
[INFO] [stderr]     Checking png v0.17.12
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling stacker v0.1.15
[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 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]    Compiling binread_derive v2.1.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling binread v2.2.0
[INFO] [stderr]     Checking ic_principal v0.1.1
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]    Compiling serde_tokenstream v0.1.7
[INFO] [stderr]     Checking candid v0.10.3
[INFO] [stderr]    Compiling ic-cdk-macros v0.8.4
[INFO] [stderr]     Checking ic-cdk v0.12.1
[INFO] [stderr]     Checking qrcode_backend v1.1.0 (/opt/rustwide/workdir/src/qrcode_backend)
[INFO] [stdout] warning: the item `ic_cdk` is imported redundantly
[INFO] [stdout]  --> src/qrcode_backend/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ic_cdk;
[INFO] [stdout]   |     ^^^^^^ the item `ic_cdk` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ic_cdk` is imported redundantly
[INFO] [stdout]  --> src/qrcode_backend/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ic_cdk;
[INFO] [stdout]   |     ^^^^^^ the item `ic_cdk` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 27.97s
[INFO] running `Command { std: "docker" "inspect" "2944d94662bd775d2f7561ef71c231836658eb9c202d8fcc0df56ea498b37f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2944d94662bd775d2f7561ef71c231836658eb9c202d8fcc0df56ea498b37f5f", kill_on_drop: false }`
[INFO] [stdout] 2944d94662bd775d2f7561ef71c231836658eb9c202d8fcc0df56ea498b37f5f