[INFO] fetching crate rstack-self 0.3.0...
[INFO] checking rstack-self-0.3.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate rstack-self 0.3.0 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate rstack-self 0.3.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rstack-self 0.3.0
[INFO] finished tweaking crates.io crate rstack-self 0.3.0
[INFO] tweaked toml for crates.io crate rstack-self 0.3.0 written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate crates.io crate rstack-self 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9140d62cf61924d8c12fbc74ea3cc298a1225598be9d780d2ac7461cd9e3a5c3
[INFO] running `Command { std: "docker" "start" "-a" "9140d62cf61924d8c12fbc74ea3cc298a1225598be9d780d2ac7461cd9e3a5c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9140d62cf61924d8c12fbc74ea3cc298a1225598be9d780d2ac7461cd9e3a5c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9140d62cf61924d8c12fbc74ea3cc298a1225598be9d780d2ac7461cd9e3a5c3", kill_on_drop: false }`
[INFO] [stdout] 9140d62cf61924d8c12fbc74ea3cc298a1225598be9d780d2ac7461cd9e3a5c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55ceb6d7552b20434734859aaa5e1cfafc0a1092dddfdd4cdff3f5f71897ddc9
[INFO] running `Command { std: "docker" "start" "-a" "55ceb6d7552b20434734859aaa5e1cfafc0a1092dddfdd4cdff3f5f71897ddc9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling unwind v0.3.0
[INFO] [stderr]     Checking foreign-types-shared v0.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling unwind-sys v0.1.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]    Compiling foreign-types-macros v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking foreign-types v0.5.0
[INFO] [stderr]     Checking rstack v0.3.0
[INFO] [stderr]     Checking rstack-self v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.92s
[INFO] running `Command { std: "docker" "inspect" "55ceb6d7552b20434734859aaa5e1cfafc0a1092dddfdd4cdff3f5f71897ddc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55ceb6d7552b20434734859aaa5e1cfafc0a1092dddfdd4cdff3f5f71897ddc9", kill_on_drop: false }`
[INFO] [stdout] 55ceb6d7552b20434734859aaa5e1cfafc0a1092dddfdd4cdff3f5f71897ddc9