[INFO] cloning repository https://github.com/vijaykm2/TheRustProgrammingLanguageBook
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vijaykm2/TheRustProgrammingLanguageBook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaykm2%2FTheRustProgrammingLanguageBook", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaykm2%2FTheRustProgrammingLanguageBook'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12d7c828497e7a2e1abfe923db877ef8c821c5e5
[INFO] testing vijaykm2/TheRustProgrammingLanguageBook against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaykm2%2FTheRustProgrammingLanguageBook" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vijaykm2/TheRustProgrammingLanguageBook on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vijaykm2/TheRustProgrammingLanguageBook
[INFO] finished tweaking git repo https://github.com/vijaykm2/TheRustProgrammingLanguageBook
[INFO] tweaked toml for git repo https://github.com/vijaykm2/TheRustProgrammingLanguageBook written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/vijaykm2/TheRustProgrammingLanguageBook already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80ef8e60a913aecf00a142de8941be64ba37f7c9dc80b3584e0fd207f2ae4297
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "80ef8e60a913aecf00a142de8941be64ba37f7c9dc80b3584e0fd207f2ae4297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80ef8e60a913aecf00a142de8941be64ba37f7c9dc80b3584e0fd207f2ae4297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80ef8e60a913aecf00a142de8941be64ba37f7c9dc80b3584e0fd207f2ae4297", kill_on_drop: false }`
[INFO] [stdout] 80ef8e60a913aecf00a142de8941be64ba37f7c9dc80b3584e0fd207f2ae4297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd8bc8218d6f43a7d34307df23693bcd973035c148e0f25d54a1656f2806b33d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dd8bc8218d6f43a7d34307df23693bcd973035c148e0f25d54a1656f2806b33d", kill_on_drop: false }`
[INFO] [stderr]    Compiling TheRustProgrammingLanguageBook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `TheRustProgrammingLanguageBook` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `the_rust_programming_language_book`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dd8bc8218d6f43a7d34307df23693bcd973035c148e0f25d54a1656f2806b33d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8bc8218d6f43a7d34307df23693bcd973035c148e0f25d54a1656f2806b33d", kill_on_drop: false }`
[INFO] [stdout] dd8bc8218d6f43a7d34307df23693bcd973035c148e0f25d54a1656f2806b33d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 87e071b2c995cd0cf78f696c91673d9081188f14664d4ac74de2ef2ef37fd4f9
[INFO] running `Command { std: "docker" "start" "-a" "87e071b2c995cd0cf78f696c91673d9081188f14664d4ac74de2ef2ef37fd4f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling TheRustProgrammingLanguageBook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `TheRustProgrammingLanguageBook` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `the_rust_programming_language_book`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "87e071b2c995cd0cf78f696c91673d9081188f14664d4ac74de2ef2ef37fd4f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e071b2c995cd0cf78f696c91673d9081188f14664d4ac74de2ef2ef37fd4f9", kill_on_drop: false }`
[INFO] [stdout] 87e071b2c995cd0cf78f696c91673d9081188f14664d4ac74de2ef2ef37fd4f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b7bceff07b43e46bb6bdfba5a4e44213b8ea732c1d5bf9f6dafefafbd25bf8ee
[INFO] running `Command { std: "docker" "start" "-a" "b7bceff07b43e46bb6bdfba5a4e44213b8ea732c1d5bf9f6dafefafbd25bf8ee", kill_on_drop: false }`
[INFO] [stderr] warning: crate `TheRustProgrammingLanguageBook` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `the_rust_programming_language_book`
[INFO] [stderr] 
[INFO] [stderr] warning: `TheRustProgrammingLanguageBook` (bin "TheRustProgrammingLanguageBook" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/TheRustProgrammingLanguageBook-21c9460dd9e4d0c7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b7bceff07b43e46bb6bdfba5a4e44213b8ea732c1d5bf9f6dafefafbd25bf8ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7bceff07b43e46bb6bdfba5a4e44213b8ea732c1d5bf9f6dafefafbd25bf8ee", kill_on_drop: false }`
[INFO] [stdout] b7bceff07b43e46bb6bdfba5a4e44213b8ea732c1d5bf9f6dafefafbd25bf8ee