[INFO] cloning repository https://github.com/florentinl/qrcode-gen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/florentinl/qrcode-gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflorentinl%2Fqrcode-gen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflorentinl%2Fqrcode-gen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f44f4cf32f2f6d5c2fa22c6ffb28373cb981d06f
[INFO] checking florentinl/qrcode-gen against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflorentinl%2Fqrcode-gen" "/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/florentinl/qrcode-gen 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/florentinl/qrcode-gen
[INFO] finished tweaking git repo https://github.com/florentinl/qrcode-gen
[INFO] tweaked toml for git repo https://github.com/florentinl/qrcode-gen written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/florentinl/qrcode-gen 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-width v0.1.6
[INFO] [stderr]   Downloaded arboard v3.2.1
[INFO] [stderr]   Downloaded qrcodegen v1.8.0
[INFO] [stderr]   Downloaded qrcode-generator v4.1.9
[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] d3a3114503af5b91a0748d8dfa7d99b98d959e7491ec44a2dceb36d265f2c8b0
[INFO] running `Command { std: "docker" "start" "-a" "d3a3114503af5b91a0748d8dfa7d99b98d959e7491ec44a2dceb36d265f2c8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3a3114503af5b91a0748d8dfa7d99b98d959e7491ec44a2dceb36d265f2c8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3a3114503af5b91a0748d8dfa7d99b98d959e7491ec44a2dceb36d265f2c8b0", kill_on_drop: false }`
[INFO] [stdout] d3a3114503af5b91a0748d8dfa7d99b98d959e7491ec44a2dceb36d265f2c8b0
[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] f708fafe6b8b386777d3c20204101148e3e901538590603008fb54402bdc09f7
[INFO] running `Command { std: "docker" "start" "-a" "f708fafe6b8b386777d3c20204101148e3e901538590603008fb54402bdc09f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.1
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking qrcodegen v1.8.0
[INFO] [stderr]     Checking html-escape v0.2.13
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking bstr v1.7.0
[INFO] [stderr]     Checking opener v0.6.1
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking qrcode-generator v4.1.9
[INFO] [stderr]     Checking x11rb-protocol v0.10.0
[INFO] [stderr]     Checking x11rb v0.10.1
[INFO] [stderr]     Checking arboard v3.2.1
[INFO] [stderr]     Checking qr-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `opener` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use opener;
[INFO] [stdout]   |     ^^^^^^ the item `opener` 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 `opener` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use opener;
[INFO] [stdout]   |     ^^^^^^ the item `opener` 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 23.84s
[INFO] running `Command { std: "docker" "inspect" "f708fafe6b8b386777d3c20204101148e3e901538590603008fb54402bdc09f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f708fafe6b8b386777d3c20204101148e3e901538590603008fb54402bdc09f7", kill_on_drop: false }`
[INFO] [stdout] f708fafe6b8b386777d3c20204101148e3e901538590603008fb54402bdc09f7
[INFO] checking florentinl/qrcode-gen against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflorentinl%2Fqrcode-gen" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/florentinl/qrcode-gen on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/florentinl/qrcode-gen
[INFO] finished tweaking git repo https://github.com/florentinl/qrcode-gen
[INFO] tweaked toml for git repo https://github.com/florentinl/qrcode-gen written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/florentinl/qrcode-gen 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f26ab32cc062987ce752054d242d752813f5dd058aba2ccaf934694b2e5f5c0f
[INFO] running `Command { std: "docker" "start" "-a" "f26ab32cc062987ce752054d242d752813f5dd058aba2ccaf934694b2e5f5c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f26ab32cc062987ce752054d242d752813f5dd058aba2ccaf934694b2e5f5c0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f26ab32cc062987ce752054d242d752813f5dd058aba2ccaf934694b2e5f5c0f", kill_on_drop: false }`
[INFO] [stdout] f26ab32cc062987ce752054d242d752813f5dd058aba2ccaf934694b2e5f5c0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b53b747f7fd2c0cab695a77b3383b93bc4b515662085f76dd9bcc8dd3061cd59
[INFO] running `Command { std: "docker" "start" "-a" "b53b747f7fd2c0cab695a77b3383b93bc4b515662085f76dd9bcc8dd3061cd59", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.1
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking png v0.17.10
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking html-escape v0.2.13
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking qrcodegen v1.8.0
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]     Checking bstr v1.7.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking opener v0.6.1
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking qrcode-generator v4.1.9
[INFO] [stderr]     Checking x11rb-protocol v0.10.0
[INFO] [stderr]     Checking x11rb v0.10.1
[INFO] [stderr]     Checking arboard v3.2.1
[INFO] [stderr]     Checking qr-gen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `opener` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use opener;
[INFO] [stdout]   |     ^^^^^^ the item `opener` 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 `opener` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use opener;
[INFO] [stdout]   |     ^^^^^^ the item `opener` 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 26.63s
[INFO] running `Command { std: "docker" "inspect" "b53b747f7fd2c0cab695a77b3383b93bc4b515662085f76dd9bcc8dd3061cd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53b747f7fd2c0cab695a77b3383b93bc4b515662085f76dd9bcc8dd3061cd59", kill_on_drop: false }`
[INFO] [stdout] b53b747f7fd2c0cab695a77b3383b93bc4b515662085f76dd9bcc8dd3061cd59