[INFO] fetching crate iron_json 1.0.0...
[INFO] checking iron_json-1.0.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate iron_json 1.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate iron_json 1.0.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages
[INFO] [stderr]       Adding base64 v0.9.3 (latest: v0.22.0)
[INFO] [stderr]       Adding bodyparser v0.5.0 (latest: v0.8.0)
[INFO] [stderr]       Adding conduit-mime-types v0.7.3 (latest: v0.8.0)
[INFO] [stderr]       Adding dtoa v0.2.2 (latest: v1.0.9)
[INFO] [stderr]       Adding hyper v0.10.16 (latest: v1.2.0)
[INFO] [stderr]       Adding idna v0.1.5 (latest: v0.5.0)
[INFO] [stderr]       Adding iron v0.5.1 (latest: v0.6.1)
[INFO] [stderr]       Adding itoa v0.1.1 (latest: v1.0.11)
[INFO] [stderr]       Adding json v0.11.15 (latest: v0.12.4)
[INFO] [stderr]       Adding language-tags v0.2.2 (latest: v0.3.2)
[INFO] [stderr]       Adding lazy_static v0.2.11 (latest: v1.4.0)
[INFO] [stderr]       Adding log v0.3.9 (latest: v0.4.21)
[INFO] [stderr]       Adding mime v0.2.6 (latest: v0.3.17)
[INFO] [stderr]       Adding num-traits v0.1.43 (latest: v0.2.18)
[INFO] [stderr]       Adding percent-encoding v1.0.1 (latest: v2.3.1)
[INFO] [stderr]       Adding persistent v0.3.0 (latest: v0.4.0)
[INFO] [stderr]       Adding serde v0.8.23 (latest: v1.0.197)
[INFO] [stderr]       Adding serde_json v0.8.6 (latest: v1.0.115)
[INFO] [stderr]       Adding time v0.1.45 (latest: v0.3.34)
[INFO] [stderr]       Adding unicase v1.4.2 (latest: v2.7.0)
[INFO] [stderr]       Adding url v1.7.2 (latest: v2.5.0)
[INFO] [stderr]       Adding version_check v0.1.5 (latest: v0.9.4)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded persistent v0.3.0
[INFO] [stderr]   Downloaded iron v0.5.1
[INFO] [stderr]   Downloaded bodyparser v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f81d5ceeee06a3e0c230e125b158f28228c39d8ca4ad61b929500efee1bc905f
[INFO] running `Command { std: "docker" "start" "-a" "f81d5ceeee06a3e0c230e125b158f28228c39d8ca4ad61b929500efee1bc905f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f81d5ceeee06a3e0c230e125b158f28228c39d8ca4ad61b929500efee1bc905f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f81d5ceeee06a3e0c230e125b158f28228c39d8ca4ad61b929500efee1bc905f", kill_on_drop: false }`
[INFO] [stdout] f81d5ceeee06a3e0c230e125b158f28228c39d8ca4ad61b929500efee1bc905f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aedf9212cb011944d035a14008341a22b7e9b2fbee7f9acda9c8c2581058180
[INFO] running `Command { std: "docker" "start" "-a" "8aedf9212cb011944d035a14008341a22b7e9b2fbee7f9acda9c8c2581058180", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking hyper v0.10.16
[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` profile [unoptimized + debuginfo] target(s) in 2.61s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "8aedf9212cb011944d035a14008341a22b7e9b2fbee7f9acda9c8c2581058180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aedf9212cb011944d035a14008341a22b7e9b2fbee7f9acda9c8c2581058180", kill_on_drop: false }`
[INFO] [stdout] 8aedf9212cb011944d035a14008341a22b7e9b2fbee7f9acda9c8c2581058180