[INFO] cloning repository https://github.com/ctsrc/Base256
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ctsrc/Base256" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctsrc%2FBase256", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctsrc%2FBase256'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 768a764a4767deca9138ca5e89b94e8250814e62
[INFO] checking ctsrc/Base256 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctsrc%2FBase256" "/workspace/builds/worker-42/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-42/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ctsrc/Base256 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ctsrc/Base256
[INFO] finished tweaking git repo https://github.com/ctsrc/Base256
[INFO] tweaked toml for git repo https://github.com/ctsrc/Base256 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate git repo https://github.com/ctsrc/Base256 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b35609b4b1907803294eb75fbb0ce34a9f31e58c607a6c07f735b40e84b893e
[INFO] running `Command { std: "docker" "start" "-a" "1b35609b4b1907803294eb75fbb0ce34a9f31e58c607a6c07f735b40e84b893e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b35609b4b1907803294eb75fbb0ce34a9f31e58c607a6c07f735b40e84b893e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b35609b4b1907803294eb75fbb0ce34a9f31e58c607a6c07f735b40e84b893e", kill_on_drop: false }`
[INFO] [stdout] 1b35609b4b1907803294eb75fbb0ce34a9f31e58c607a6c07f735b40e84b893e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c7bdeb452832a4bb3fce6d0f6960c3b2bdcb96a0d8b49fac6b29ae97a6d68a3
[INFO] running `Command { std: "docker" "start" "-a" "1c7bdeb452832a4bb3fce6d0f6960c3b2bdcb96a0d8b49fac6b29ae97a6d68a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling base256 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking clap v2.29.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 35s
[INFO] running `Command { std: "docker" "inspect" "1c7bdeb452832a4bb3fce6d0f6960c3b2bdcb96a0d8b49fac6b29ae97a6d68a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7bdeb452832a4bb3fce6d0f6960c3b2bdcb96a0d8b49fac6b29ae97a6d68a3", kill_on_drop: false }`
[INFO] [stdout] 1c7bdeb452832a4bb3fce6d0f6960c3b2bdcb96a0d8b49fac6b29ae97a6d68a3