[INFO] fetching crate serde_json 1.0.64...
[INFO] testing serde_json-1.0.64 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate serde_json 1.0.64 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde_json 1.0.64 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_json 1.0.64
[INFO] finished tweaking crates.io crate serde_json 1.0.64
[INFO] tweaked toml for crates.io crate serde_json 1.0.64 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 316d45694fe704dc1ba0a270c5466ba7c3ac6a8d7460ce8545d1b86a97af78fc
[INFO] running `Command { std: "docker" "start" "-a" "316d45694fe704dc1ba0a270c5466ba7c3ac6a8d7460ce8545d1b86a97af78fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "316d45694fe704dc1ba0a270c5466ba7c3ac6a8d7460ce8545d1b86a97af78fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "316d45694fe704dc1ba0a270c5466ba7c3ac6a8d7460ce8545d1b86a97af78fc", kill_on_drop: false }`
[INFO] [stdout] 316d45694fe704dc1ba0a270c5466ba7c3ac6a8d7460ce8545d1b86a97af78fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d550c1b3d635ae8ac0a5be3c1b5424b9b53f4080f71f319b319b467fee3dc882
[INFO] running `Command { std: "docker" "start" "-a" "d550c1b3d635ae8ac0a5be3c1b5424b9b53f4080f71f319b319b467fee3dc882", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.85s
[INFO] running `Command { std: "docker" "inspect" "d550c1b3d635ae8ac0a5be3c1b5424b9b53f4080f71f319b319b467fee3dc882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d550c1b3d635ae8ac0a5be3c1b5424b9b53f4080f71f319b319b467fee3dc882", kill_on_drop: false }`
[INFO] [stdout] d550c1b3d635ae8ac0a5be3c1b5424b9b53f4080f71f319b319b467fee3dc882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 444e5e1087bd6ae10c35e4682938a3c96ad944dc334b765d00b40a13a249a493
[INFO] running `Command { std: "docker" "start" "-a" "444e5e1087bd6ae10c35e4682938a3c96ad944dc334b765d00b40a13a249a493", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling trybuild v1.0.42
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling dissimilar v1.0.2
[INFO] [stderr]    Compiling automod v1.0.2
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling psm v0.1.13
[INFO] [stderr]    Compiling stacker v0.1.14
[INFO] [stderr]    Compiling serde_stacker v0.1.4
[INFO] [stderr]    Compiling serde_json v1.0.64 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.07s
[INFO] running `Command { std: "docker" "inspect" "444e5e1087bd6ae10c35e4682938a3c96ad944dc334b765d00b40a13a249a493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "444e5e1087bd6ae10c35e4682938a3c96ad944dc334b765d00b40a13a249a493", kill_on_drop: false }`
[INFO] [stdout] 444e5e1087bd6ae10c35e4682938a3c96ad944dc334b765d00b40a13a249a493
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 85244fd3db21cda282c0ae8eaf5a300a58aaec8e6ecc9399a139be1e3a3f1194
[INFO] running `Command { std: "docker" "start" "-a" "85244fd3db21cda282c0ae8eaf5a300a58aaec8e6ecc9399a139be1e3a3f1194", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_json-f2b5d3c61b6498be)
[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] [stderr]    Doc-tests serde_json
[INFO] [stdout] 
[INFO] [stdout] running 98 tests
[INFO] [stdout] test src/de.rs - de::from_reader (line 2421) ... ok
[INFO] [stdout] test src/error.rs - error::io::Error::from (line 135) ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name serde_json --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps -L native=/opt/rustwide/target/debug/build/psm-3b0e012b80b69040/out --extern automod=/opt/rustwide/target/debug/deps/libautomod-2e0bf5196ed05fca.so --extern itoa=/opt/rustwide/target/debug/deps/libitoa-653c401ca764c4cb.rlib --extern rustversion=/opt/rustwide/target/debug/deps/librustversion-83b6117889221751.so --extern ryu=/opt/rustwide/target/debug/deps/libryu-e6fb900e507a464e.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-af61c44e3bed9e8f.rlib --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-c3d208d333cdf062.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-444e26e924f3678d.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9942c929f00e5297.rlib --extern serde_stacker=/opt/rustwide/target/debug/deps/libserde_stacker-51b9634bb28c72c7.rlib --extern trybuild=/opt/rustwide/target/debug/deps/libtrybuild-ac28565a4d36f07a.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' --cfg limb_width_64 --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "85244fd3db21cda282c0ae8eaf5a300a58aaec8e6ecc9399a139be1e3a3f1194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85244fd3db21cda282c0ae8eaf5a300a58aaec8e6ecc9399a139be1e3a3f1194", kill_on_drop: false }`
[INFO] [stdout] 85244fd3db21cda282c0ae8eaf5a300a58aaec8e6ecc9399a139be1e3a3f1194