[INFO] cloning repository https://github.com/swkfn/qrcoder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swkfn/qrcoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswkfn%2Fqrcoder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswkfn%2Fqrcoder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b27265ba423039a6c474ae002d7788d1c7b0f3a9
[INFO] checking swkfn/qrcoder against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswkfn%2Fqrcoder" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/swkfn/qrcoder on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/swkfn/qrcoder
[INFO] finished tweaking git repo https://github.com/swkfn/qrcoder
[INFO] tweaked toml for git repo https://github.com/swkfn/qrcoder written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/swkfn/qrcoder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v0.4.19
[INFO] [stderr]   Downloaded checked_int_cast v1.0.0
[INFO] [stderr]   Downloaded image v0.17.0
[INFO] [stderr]   Downloaded qrcode v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c015a41bdc281790878a3aafdec1ff0627d3dda9c6219bf9df3aef621323c1b0
[INFO] running `Command { std: "docker" "start" "-a" "c015a41bdc281790878a3aafdec1ff0627d3dda9c6219bf9df3aef621323c1b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c015a41bdc281790878a3aafdec1ff0627d3dda9c6219bf9df3aef621323c1b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c015a41bdc281790878a3aafdec1ff0627d3dda9c6219bf9df3aef621323c1b0", kill_on_drop: false }`
[INFO] [stdout] c015a41bdc281790878a3aafdec1ff0627d3dda9c6219bf9df3aef621323c1b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ad95b6255252702a7eb98708a2226782d3994abaabbff8174e4cdc87f303702
[INFO] running `Command { std: "docker" "start" "-a" "8ad95b6255252702a7eb98708a2226782d3994abaabbff8174e4cdc87f303702", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking qrcode v0.5.0
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking qr_coder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.77s
[INFO] running `Command { std: "docker" "inspect" "8ad95b6255252702a7eb98708a2226782d3994abaabbff8174e4cdc87f303702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ad95b6255252702a7eb98708a2226782d3994abaabbff8174e4cdc87f303702", kill_on_drop: false }`
[INFO] [stdout] 8ad95b6255252702a7eb98708a2226782d3994abaabbff8174e4cdc87f303702