[INFO] cloning repository https://github.com/dhammafarer/cli_book-echor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dhammafarer/cli_book-echor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhammafarer%2Fcli_book-echor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhammafarer%2Fcli_book-echor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7054073b467df251b3cc48db6b41d01ff576a59f
[INFO] checking dhammafarer/cli_book-echor against master#b44e14f762fd4062faeba97f8f2bc470298ec1ac for pr-135331
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhammafarer%2Fcli_book-echor" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dhammafarer/cli_book-echor on toolchain b44e14f762fd4062faeba97f8f2bc470298ec1ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dhammafarer/cli_book-echor
[INFO] finished tweaking git repo https://github.com/dhammafarer/cli_book-echor
[INFO] tweaked toml for git repo https://github.com/dhammafarer/cli_book-echor written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dhammafarer/cli_book-echor 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" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e35da4e3a172eaa604fec313e4c9a85bab9fa5012204ee1bfb46106e311ac6a2
[INFO] running `Command { std: "docker" "start" "-a" "e35da4e3a172eaa604fec313e4c9a85bab9fa5012204ee1bfb46106e311ac6a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e35da4e3a172eaa604fec313e4c9a85bab9fa5012204ee1bfb46106e311ac6a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e35da4e3a172eaa604fec313e4c9a85bab9fa5012204ee1bfb46106e311ac6a2", kill_on_drop: false }`
[INFO] [stdout] e35da4e3a172eaa604fec313e4c9a85bab9fa5012204ee1bfb46106e311ac6a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c56febd37b3f6fc972ca9d109403cfe664d15bd015471d8a0f8b779b381f265
[INFO] running `Command { std: "docker" "start" "-a" "9c56febd37b3f6fc972ca9d109403cfe664d15bd015471d8a0f8b779b381f265", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking echor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "9c56febd37b3f6fc972ca9d109403cfe664d15bd015471d8a0f8b779b381f265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c56febd37b3f6fc972ca9d109403cfe664d15bd015471d8a0f8b779b381f265", kill_on_drop: false }`
[INFO] [stdout] 9c56febd37b3f6fc972ca9d109403cfe664d15bd015471d8a0f8b779b381f265