[INFO] cloning repository https://github.com/BrenoSantanaBruno/Rust-Exercises-The-Start
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BrenoSantanaBruno/Rust-Exercises-The-Start" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrenoSantanaBruno%2FRust-Exercises-The-Start", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrenoSantanaBruno%2FRust-Exercises-The-Start'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d4e449a298daae4831285f6e01f5c6a33bdd000
[INFO] checking BrenoSantanaBruno/Rust-Exercises-The-Start against try#3a4cb0edb4040379c037e06efeb5409e44be7b77 for pr-146377
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrenoSantanaBruno%2FRust-Exercises-The-Start" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/BrenoSantanaBruno/Rust-Exercises-The-Start
[INFO] finished tweaking git repo https://github.com/BrenoSantanaBruno/Rust-Exercises-The-Start
[INFO] tweaked toml for git repo https://github.com/BrenoSantanaBruno/Rust-Exercises-The-Start written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BrenoSantanaBruno/Rust-Exercises-The-Start on toolchain 3a4cb0edb4040379c037e06efeb5409e44be7b77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BrenoSantanaBruno/Rust-Exercises-The-Start 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" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3994a1bc47fecaf72be7431b1d7708d54e04b1f6f1086314d6d5944305019a8
[INFO] running `Command { std: "docker" "start" "-a" "d3994a1bc47fecaf72be7431b1d7708d54e04b1f6f1086314d6d5944305019a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3994a1bc47fecaf72be7431b1d7708d54e04b1f6f1086314d6d5944305019a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3994a1bc47fecaf72be7431b1d7708d54e04b1f6f1086314d6d5944305019a8", kill_on_drop: false }`
[INFO] [stdout] d3994a1bc47fecaf72be7431b1d7708d54e04b1f6f1086314d6d5944305019a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 725322cf6e6c38a307679253be4caafbd24f949c512b0bdd94a01522b348a75f
[INFO] running `Command { std: "docker" "start" "-a" "725322cf6e6c38a307679253be4caafbd24f949c512b0bdd94a01522b348a75f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.38
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "725322cf6e6c38a307679253be4caafbd24f949c512b0bdd94a01522b348a75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "725322cf6e6c38a307679253be4caafbd24f949c512b0bdd94a01522b348a75f", kill_on_drop: false }`
[INFO] [stdout] 725322cf6e6c38a307679253be4caafbd24f949c512b0bdd94a01522b348a75f
