[INFO] cloning repository https://github.com/MakeNowJust-Sandbox/20210714-p4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MakeNowJust-Sandbox/20210714-p4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMakeNowJust-Sandbox%2F20210714-p4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMakeNowJust-Sandbox%2F20210714-p4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8e2aabec109b16bd9a7f0eca9ee768a24614d7c
[INFO] checking MakeNowJust-Sandbox/20210714-p4/f8e2aabec109b16bd9a7f0eca9ee768a24614d7c against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMakeNowJust-Sandbox%2F20210714-p4" "/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/MakeNowJust-Sandbox/20210714-p4 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/MakeNowJust-Sandbox/20210714-p4
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/MakeNowJust-Sandbox/20210714-p4
[INFO] tweaked toml for git repo https://github.com/MakeNowJust-Sandbox/20210714-p4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MakeNowJust-Sandbox/20210714-p4 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.74
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.74
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded str-buf v1.0.5
[INFO] [stderr]   Downloaded error-code v2.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.2
[INFO] [stderr]   Downloaded redox_syscall v0.2.9
[INFO] [stderr]   Downloaded once_cell v1.8.0
[INFO] [stderr]   Downloaded memchr v2.4.0
[INFO] [stderr]   Downloaded cc v1.0.69
[INFO] [stderr]   Downloaded structopt v0.3.22
[INFO] [stderr]   Downloaded rustyline v8.2.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.74
[INFO] [stderr]   Downloaded bumpalo v3.7.0
[INFO] [stderr]   Downloaded nibble_vec v0.1.0
[INFO] [stderr]   Downloaded smallvec v1.6.1
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.74
[INFO] [stderr]   Downloaded nix v0.20.0
[INFO] [stderr]   Downloaded radix_trie v0.2.1
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded syn v1.0.73
[INFO] [stderr]   Downloaded clipboard-win v4.2.1
[INFO] [stderr]   Downloaded dirs-next v2.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.27
[INFO] [stderr]   Downloaded redox_users v0.4.0
[INFO] [stderr]   Downloaded fd-lock v2.0.0
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded ansi_term v0.11.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.15
[INFO] [stderr]   Downloaded bitflags v1.2.1
[INFO] [stderr]   Downloaded libc v0.2.98
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf997e0a2482a4db0e9f3fb72da9473ffbb8bb6ee9e40a04fcc61edae840e651
[INFO] running `Command { std: "docker" "start" "-a" "bf997e0a2482a4db0e9f3fb72da9473ffbb8bb6ee9e40a04fcc61edae840e651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf997e0a2482a4db0e9f3fb72da9473ffbb8bb6ee9e40a04fcc61edae840e651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf997e0a2482a4db0e9f3fb72da9473ffbb8bb6ee9e40a04fcc61edae840e651", kill_on_drop: false }`
[INFO] [stdout] bf997e0a2482a4db0e9f3fb72da9473ffbb8bb6ee9e40a04fcc61edae840e651
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 051af62cbbe21d53cf42bf3a75500730253ff4cc9814e90ef40784051b6c19f5
[INFO] running `Command { std: "docker" "start" "-a" "051af62cbbe21d53cf42bf3a75500730253ff4cc9814e90ef40784051b6c19f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking p4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking fd-lock v2.0.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rustyline v8.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.54s
[INFO] running `Command { std: "docker" "inspect" "051af62cbbe21d53cf42bf3a75500730253ff4cc9814e90ef40784051b6c19f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "051af62cbbe21d53cf42bf3a75500730253ff4cc9814e90ef40784051b6c19f5", kill_on_drop: false }`
[INFO] [stdout] 051af62cbbe21d53cf42bf3a75500730253ff4cc9814e90ef40784051b6c19f5