[INFO] fetching crate tokio-serde 0.8.0...
[INFO] checking tokio-serde-0.8.0 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate tokio-serde 0.8.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tokio-serde 0.8.0 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-serde 0.8.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tokio-serde 0.8.0
[INFO] tweaked toml for crates.io crate tokio-serde 0.8.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate tokio-serde 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.0.0
[INFO] [stderr]   Downloaded quote v1.0.8
[INFO] [stderr]   Downloaded signal-hook-registry v1.3.0
[INFO] [stderr]   Downloaded tokio-stream v0.1.0
[INFO] [stderr]   Downloaded tokio-util v0.6.0
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.8
[INFO] [stderr]   Downloaded instant v0.1.9
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.6
[INFO] [stderr]   Downloaded futures-sink v0.3.8
[INFO] [stderr]   Downloaded slab v0.4.2
[INFO] [stderr]   Downloaded futures-executor v0.3.8
[INFO] [stderr]   Downloaded futures-io v0.3.8
[INFO] [stderr]   Downloaded bincode v1.3.1
[INFO] [stderr]   Downloaded num-bigint v0.3.1
[INFO] [stderr]   Downloaded educe v0.4.13
[INFO] [stderr]   Downloaded tokio v1.0.0
[INFO] [stderr]   Downloaded libc v0.2.81
[INFO] [stderr]   Downloaded futures-util v0.3.8
[INFO] [stderr]   Downloaded futures v0.3.8
[INFO] [stderr]   Downloaded serde v1.0.118
[INFO] [stderr]   Downloaded serde_json v1.0.60
[INFO] [stderr]   Downloaded syn v1.0.55
[INFO] [stderr]   Downloaded num-integer v0.1.44
[INFO] [stderr]   Downloaded futures-channel v0.3.8
[INFO] [stderr]   Downloaded pin-project-internal v1.0.2
[INFO] [stderr]   Downloaded pin-project v1.0.2
[INFO] [stderr]   Downloaded num-traits v0.2.14
[INFO] [stderr]   Downloaded rmp-serde v0.15.0
[INFO] [stderr]   Downloaded bytes v1.0.0
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded miow v0.3.6
[INFO] [stderr]   Downloaded mio v0.7.6
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded smallvec v1.5.1
[INFO] [stderr]   Downloaded parking_lot_core v0.8.2
[INFO] [stderr]   Downloaded parking_lot v0.11.1
[INFO] [stderr]   Downloaded pin-project-lite v0.2.0
[INFO] [stderr]   Downloaded futures-macro v0.3.8
[INFO] [stderr]   Downloaded futures-task v0.3.8
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.19
[INFO] [stderr]   Downloaded impls v1.0.3
[INFO] [stderr]   Downloaded rmp v0.8.9
[INFO] [stderr]   Downloaded async-stream v0.3.0
[INFO] [stderr]   Downloaded futures-core v0.3.8
[INFO] [stderr]   Downloaded lock_api v0.4.2
[INFO] [stderr]   Downloaded async-stream-impl v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 364e82c6d05e2d59bb513dd4df5918f06550504423e7cb898ef819ccca506c3c
[INFO] running `Command { std: "docker" "start" "-a" "364e82c6d05e2d59bb513dd4df5918f06550504423e7cb898ef819ccca506c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "364e82c6d05e2d59bb513dd4df5918f06550504423e7cb898ef819ccca506c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "364e82c6d05e2d59bb513dd4df5918f06550504423e7cb898ef819ccca506c3c", kill_on_drop: false }`
[INFO] [stdout] 364e82c6d05e2d59bb513dd4df5918f06550504423e7cb898ef819ccca506c3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e461273e5e2b705fdbd194202eb549a3ed02df2751dcde1d569f36c2639e224
[INFO] running `Command { std: "docker" "start" "-a" "8e461273e5e2b705fdbd194202eb549a3ed02df2751dcde1d569f36c2639e224", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking bytes v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking impls v1.0.3
[INFO] [stderr]    Compiling tokio v1.0.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking tokio-serde v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-stream v0.1.0
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking tokio-util v0.6.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.62s
[INFO] running `Command { std: "docker" "inspect" "8e461273e5e2b705fdbd194202eb549a3ed02df2751dcde1d569f36c2639e224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e461273e5e2b705fdbd194202eb549a3ed02df2751dcde1d569f36c2639e224", kill_on_drop: false }`
[INFO] [stdout] 8e461273e5e2b705fdbd194202eb549a3ed02df2751dcde1d569f36c2639e224