[INFO] fetching crate medea-jason 0.2.0...
[INFO] checking medea-jason-0.2.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate medea-jason 0.2.0 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate medea-jason 0.2.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-88/source/.cargo/config
[INFO] started tweaking crates.io crate medea-jason 0.2.0
[INFO] finished tweaking crates.io crate medea-jason 0.2.0
[INFO] tweaked toml for crates.io crate medea-jason 0.2.0 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-logger v0.2.0
[INFO] [stderr]   Downloaded wee_alloc v0.4.5
[INFO] [stderr]   Downloaded memory_units v0.4.0
[INFO] [stderr]   Downloaded tracerr v0.1.2
[INFO] [stderr]   Downloaded medea-macro v0.2.1
[INFO] [stderr]   Downloaded medea-reactive v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a8032413587792ccfd0bd487d9cbae801b79d336fcc856ea487cb0a21cc204e
[INFO] running `Command { std: "docker" "start" "-a" "6a8032413587792ccfd0bd487d9cbae801b79d336fcc856ea487cb0a21cc204e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a8032413587792ccfd0bd487d9cbae801b79d336fcc856ea487cb0a21cc204e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8032413587792ccfd0bd487d9cbae801b79d336fcc856ea487cb0a21cc204e", kill_on_drop: false }`
[INFO] [stdout] 6a8032413587792ccfd0bd487d9cbae801b79d336fcc856ea487cb0a21cc204e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40a121cc01b324d56e84b9099e36d529352b21031386f526a18dbc6d667dd67d
[INFO] running `Command { std: "docker" "start" "-a" "40a121cc01b324d56e84b9099e36d529352b21031386f526a18dbc6d667dd67d", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.76
[INFO] [stderr]    Compiling serde v1.0.128
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.76
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.26
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.76
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.76
[INFO] [stderr]    Compiling serde_derive v1.0.128
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling medea-macro v0.2.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.76
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling serde_with_macros v1.4.2
[INFO] [stderr]     Checking tracerr v0.1.2
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking medea-reactive v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking serde_with v1.9.4
[INFO] [stderr]     Checking js-sys v0.3.53
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking medea-client-api-proto v0.3.0
[INFO] [stderr]     Checking web-sys v0.3.53
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.26
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.26
[INFO] [stderr]     Checking wasm-logger v0.2.0
[INFO] [stderr]     Checking medea-jason v0.2.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/web.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.92s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking medea-jason v0.2.0 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.02s
[INFO] running `Command { std: "docker" "inspect" "40a121cc01b324d56e84b9099e36d529352b21031386f526a18dbc6d667dd67d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a121cc01b324d56e84b9099e36d529352b21031386f526a18dbc6d667dd67d", kill_on_drop: false }`
[INFO] [stdout] 40a121cc01b324d56e84b9099e36d529352b21031386f526a18dbc6d667dd67d