[INFO] fetching crate iron_json 1.0.0...
[INFO] checking iron_json-1.0.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate iron_json 1.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate iron_json 1.0.0 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 crates.io crate iron_json 1.0.0
[INFO] finished tweaking crates.io crate iron_json 1.0.0
[INFO] tweaked toml for crates.io crate iron_json 1.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f531e7f736940ed6c738eafb2a3676edd6e7d703a7abce79b1ae5584a5f09080
[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" "f531e7f736940ed6c738eafb2a3676edd6e7d703a7abce79b1ae5584a5f09080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f531e7f736940ed6c738eafb2a3676edd6e7d703a7abce79b1ae5584a5f09080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f531e7f736940ed6c738eafb2a3676edd6e7d703a7abce79b1ae5584a5f09080", kill_on_drop: false }`
[INFO] [stdout] f531e7f736940ed6c738eafb2a3676edd6e7d703a7abce79b1ae5584a5f09080
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55df5af2ab4b273996fbeaba57d55464027cde466c554fc5313138f48a62a92f
[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" "55df5af2ab4b273996fbeaba57d55464027cde466c554fc5313138f48a62a92f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking persistent v0.3.0
[INFO] [stderr]     Checking bodyparser v0.5.0
[INFO] [stderr]     Checking iron_json v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.04s
[INFO] running `Command { std: "docker" "inspect" "55df5af2ab4b273996fbeaba57d55464027cde466c554fc5313138f48a62a92f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55df5af2ab4b273996fbeaba57d55464027cde466c554fc5313138f48a62a92f", kill_on_drop: false }`
[INFO] [stdout] 55df5af2ab4b273996fbeaba57d55464027cde466c554fc5313138f48a62a92f