[INFO] fetching crate promptress 0.2.2...
[INFO] checking promptress-0.2.2 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate promptress 0.2.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate promptress 0.2.2 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate promptress 0.2.2
[INFO] finished tweaking crates.io crate promptress 0.2.2
[INFO] tweaked toml for crates.io crate promptress 0.2.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate promptress 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml v0.5.6
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded termion v1.5.5
[INFO] [stderr]   Downloaded url v2.1.1
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded getrandom v0.1.14
[INFO] [stderr]   Downloaded idna v0.2.0
[INFO] [stderr]   Downloaded jobserver v0.1.21
[INFO] [stderr]   Downloaded wasi v0.9.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded arrayref v0.3.6
[INFO] [stderr]   Downloaded arrayvec v0.5.1
[INFO] [stderr]   Downloaded base64 v0.11.0
[INFO] [stderr]   Downloaded dirs-sys v0.3.5
[INFO] [stderr]   Downloaded matches v0.1.8
[INFO] [stderr]   Downloaded percent-encoding v2.1.0
[INFO] [stderr]   Downloaded rust-argon2 v0.7.0
[INFO] [stderr]   Downloaded blake2b_simd v0.5.10
[INFO] [stderr]   Downloaded constant_time_eq v0.1.5
[INFO] [stderr]   Downloaded redox_users v0.3.4
[INFO] [stderr]   Downloaded dirs v3.0.1
[INFO] [stderr]   Downloaded cc v1.0.59
[INFO] [stderr]   Downloaded vcpkg v0.2.10
[INFO] [stderr]   Downloaded pkg-config v0.3.18
[INFO] [stderr]   Downloaded unicode-bidi v0.3.4
[INFO] [stderr]   Downloaded tinyvec v0.3.4
[INFO] [stderr]   Downloaded if_chain v1.0.0
[INFO] [stderr]   Downloaded serde_json v1.0.57
[INFO] [stderr]   Downloaded users v0.10.0
[INFO] [stderr]   Downloaded serde v1.0.115
[INFO] [stderr]   Downloaded log v0.4.11
[INFO] [stderr]   Downloaded unicode-normalization v0.1.13
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded smallvec v1.4.2
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded syn v1.0.38
[INFO] [stderr]   Downloaded redox_termios v0.1.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.19
[INFO] [stderr]   Downloaded serde_derive v1.0.115
[INFO] [stderr]   Downloaded git2 v0.13.9
[INFO] [stderr]   Downloaded libz-sys v1.1.0
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] [stderr]   Downloaded libgit2-sys v0.12.11+1.0.1
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52e393fdab0bdac9d26b4bcfdedf3e55bf519fa060a18f2c70a0d56ba50019d1
[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" "52e393fdab0bdac9d26b4bcfdedf3e55bf519fa060a18f2c70a0d56ba50019d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52e393fdab0bdac9d26b4bcfdedf3e55bf519fa060a18f2c70a0d56ba50019d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52e393fdab0bdac9d26b4bcfdedf3e55bf519fa060a18f2c70a0d56ba50019d1", kill_on_drop: false }`
[INFO] [stdout] 52e393fdab0bdac9d26b4bcfdedf3e55bf519fa060a18f2c70a0d56ba50019d1
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--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] d2b11aa1cdf2b4086bb95b93082e51e7af1ea41fa80ed7336f6397d53b79566f
[INFO] running `Command { std: "docker" "start" "-a" "d2b11aa1cdf2b4086bb95b93082e51e7af1ea41fa80ed7336f6397d53b79566f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking if_chain v1.0.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling libz-sys v1.1.0
[INFO] [stderr]    Compiling libgit2-sys v0.12.11+1.0.1
[INFO] [stderr]     Checking git2 v0.13.9
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking promptress v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.58s
[INFO] running `Command { std: "docker" "inspect" "d2b11aa1cdf2b4086bb95b93082e51e7af1ea41fa80ed7336f6397d53b79566f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2b11aa1cdf2b4086bb95b93082e51e7af1ea41fa80ed7336f6397d53b79566f", kill_on_drop: false }`
[INFO] [stdout] d2b11aa1cdf2b4086bb95b93082e51e7af1ea41fa80ed7336f6397d53b79566f