[INFO] cloning repository https://github.com/provotum/generator-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/provotum/generator-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprovotum%2Fgenerator-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprovotum%2Fgenerator-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cba1801833e03da62078dbc609c7aa541a5d7fb5
[INFO] checking provotum/generator-rs against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprovotum%2Fgenerator-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/provotum/generator-rs on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/provotum/generator-rs
[INFO] finished tweaking git repo https://github.com/provotum/generator-rs
[INFO] tweaked toml for git repo https://github.com/provotum/generator-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/provotum/generator-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b9b9a6528f96fbab98e6615c79045050cbcfc34592036923de23d6ac49d4fcb
[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" "5b9b9a6528f96fbab98e6615c79045050cbcfc34592036923de23d6ac49d4fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b9b9a6528f96fbab98e6615c79045050cbcfc34592036923de23d6ac49d4fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9b9a6528f96fbab98e6615c79045050cbcfc34592036923de23d6ac49d4fcb", kill_on_drop: false }`
[INFO] [stdout] 5b9b9a6528f96fbab98e6615c79045050cbcfc34592036923de23d6ac49d4fcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e88141811a56151584700d2dffaacff9db0f0fb488fe5de5a834240a77708aed
[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" "e88141811a56151584700d2dffaacff9db0f0fb488fe5de5a834240a77708aed", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking serde_json v1.0.31
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.6
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking pretty_env_logger v0.2.4
[INFO] [stderr]     Checking crypto-rs v0.1.2 (https://github.com/provotum/crypto-rs.git#3f284c3e)
[INFO] [stderr]     Checking generator_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.27s
[INFO] running `Command { std: "docker" "inspect" "e88141811a56151584700d2dffaacff9db0f0fb488fe5de5a834240a77708aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88141811a56151584700d2dffaacff9db0f0fb488fe5de5a834240a77708aed", kill_on_drop: false }`
[INFO] [stdout] e88141811a56151584700d2dffaacff9db0f0fb488fe5de5a834240a77708aed