[INFO] fetching crate jason 0.2.0...
[INFO] testing jason-0.2.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate jason 0.2.0 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate jason 0.2.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jason 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate jason 0.2.0
[INFO] tweaked toml for crates.io crate jason 0.2.0 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate crates.io crate jason 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df998fb8035d7b4ae22febddd2592e8e5c49c316634a7ad595b4394ff398689b
[INFO] running `Command { std: "docker" "start" "-a" "df998fb8035d7b4ae22febddd2592e8e5c49c316634a7ad595b4394ff398689b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df998fb8035d7b4ae22febddd2592e8e5c49c316634a7ad595b4394ff398689b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df998fb8035d7b4ae22febddd2592e8e5c49c316634a7ad595b4394ff398689b", kill_on_drop: false }`
[INFO] [stdout] df998fb8035d7b4ae22febddd2592e8e5c49c316634a7ad595b4394ff398689b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0988e87a597e226398620f1aa91b64f3afdfb61325ef6ade3c6ac525bc41bb6d
[INFO] running `Command { std: "docker" "start" "-a" "0988e87a597e226398620f1aa91b64f3afdfb61325ef6ade3c6ac525bc41bb6d", 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 memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling jason v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.19s
[INFO] running `Command { std: "docker" "inspect" "0988e87a597e226398620f1aa91b64f3afdfb61325ef6ade3c6ac525bc41bb6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0988e87a597e226398620f1aa91b64f3afdfb61325ef6ade3c6ac525bc41bb6d", kill_on_drop: false }`
[INFO] [stdout] 0988e87a597e226398620f1aa91b64f3afdfb61325ef6ade3c6ac525bc41bb6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3169ccffd347b1a3081ea5dbe742540f97373a1349c017949e6621450fd7fa5
[INFO] running `Command { std: "docker" "start" "-a" "a3169ccffd347b1a3081ea5dbe742540f97373a1349c017949e6621450fd7fa5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling bytes v1.0.0
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling tower-service v0.3.0
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling http v0.2.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling http-body v0.4.0
[INFO] [stderr]    Compiling hyper v0.14.2
[INFO] [stderr]    Compiling jason v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.33s
[INFO] running `Command { std: "docker" "inspect" "a3169ccffd347b1a3081ea5dbe742540f97373a1349c017949e6621450fd7fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3169ccffd347b1a3081ea5dbe742540f97373a1349c017949e6621450fd7fa5", kill_on_drop: false }`
[INFO] [stdout] a3169ccffd347b1a3081ea5dbe742540f97373a1349c017949e6621450fd7fa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f351cea756b3a9f5995c8e94fcc2befd38c2eb6ec7363ae498aa21f4e32a0ba4
[INFO] running `Command { std: "docker" "start" "-a" "f351cea756b3a9f5995c8e94fcc2befd38c2eb6ec7363ae498aa21f4e32a0ba4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jason-378a16cbe84f4c8f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::deserialize_result_res ... ok
[INFO] [stdout] test tests::serialize_requests ... ok
[INFO] [stdout] test tests::deserialize_error_res ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests jason
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f351cea756b3a9f5995c8e94fcc2befd38c2eb6ec7363ae498aa21f4e32a0ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f351cea756b3a9f5995c8e94fcc2befd38c2eb6ec7363ae498aa21f4e32a0ba4", kill_on_drop: false }`
[INFO] [stdout] f351cea756b3a9f5995c8e94fcc2befd38c2eb6ec7363ae498aa21f4e32a0ba4