[INFO] fetching crate gwd-backend-firefox 0.1.5... [INFO] checking gwd-backend-firefox-0.1.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate gwd-backend-firefox 0.1.5 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate gwd-backend-firefox 0.1.5 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate gwd-backend-firefox 0.1.5 [INFO] finished tweaking crates.io crate gwd-backend-firefox 0.1.5 [INFO] tweaked toml for crates.io crate gwd-backend-firefox 0.1.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 190 packages [INFO] [stderr] Adding base64 v0.13.1 (latest: v0.22.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bytes v0.5.6 (latest: v1.6.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding dirs v2.0.2 (latest: v5.0.1) [INFO] [stderr] Adding dirs-sys v0.3.7 (latest: v0.4.1) [INFO] [stderr] Adding error-chain v0.10.0 (latest: v0.12.4) [INFO] [stderr] Adding foreign-types v0.3.2 (latest: v0.5.0) [INFO] [stderr] Adding foreign-types-shared v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.12) [INFO] [stderr] Adding h2 v0.2.7 (latest: v0.4.4) [INFO] [stderr] Adding hashbrown v0.12.3 (latest: v0.14.3) [INFO] [stderr] Adding heck v0.3.3 (latest: v0.5.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding http v0.2.12 (latest: v1.1.0) [INFO] [stderr] Adding http-body v0.3.1 (latest: v1.0.0) [INFO] [stderr] Adding httpdate v0.3.2 (latest: v1.0.3) [INFO] [stderr] Adding hyper v0.13.10 (latest: v1.2.0) [INFO] [stderr] Adding hyper-tls v0.4.3 (latest: v0.6.0) [INFO] [stderr] Adding indexmap v1.9.3 (latest: v2.2.6) [INFO] [stderr] Adding itoa v0.4.8 (latest: v1.0.11) [INFO] [stderr] Adding libloading v0.6.7 (latest: v0.8.3) [INFO] [stderr] Adding linux-raw-sys v0.4.13 (latest: v0.6.4) [INFO] [stderr] Adding mio v0.6.23 (latest: v0.8.11) [INFO] [stderr] Adding miow v0.2.2 (latest: v0.6.0) [INFO] [stderr] Adding pin-project-lite v0.1.12 (latest: v0.2.14) [INFO] [stderr] Adding rand v0.7.3 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (latest: v0.3.2) [INFO] [stderr] Adding redox_syscall v0.4.1 (latest: v0.5.1) [INFO] [stderr] Adding reqwest v0.10.10 (latest: v0.12.3) [INFO] [stderr] Adding rustc_version v0.2.3 (latest: v0.4.0) [INFO] [stderr] Adding semver v0.9.0 (latest: v1.0.22) [INFO] [stderr] Adding semver-parser v0.7.0 (latest: v0.10.2) [INFO] [stderr] Adding simplelog v0.7.6 (latest: v0.12.2) [INFO] [stderr] Adding socket2 v0.3.19 (latest: v0.5.6) [INFO] [stderr] Adding strsim v0.8.0 (latest: v0.11.1) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding term v0.6.1 (latest: v0.7.0) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding tokio v0.2.25 (latest: v1.37.0) [INFO] [stderr] Adding tokio-util v0.3.1 (latest: v0.7.10) [INFO] [stderr] Adding toml v0.2.1 (latest: v0.8.12) [INFO] [stderr] Adding toml v0.5.11 (latest: v0.8.12) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding winapi v0.2.8 (latest: v0.3.9) [INFO] [stderr] Adding windows-core v0.52.0 (latest: v0.55.0) [INFO] [stderr] Adding winreg v0.7.0 (latest: v0.52.0) [INFO] [stderr] Adding zmq v0.9.2 (latest: v0.10.0) [INFO] [stderr] Adding zmq-sys v0.11.0 (latest: v0.12.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lz4 v1.24.0 [INFO] [stderr] Downloaded lz4-sys v1.9.4 [INFO] [stderr] Downloaded custom_error v1.9.2 [INFO] [stderr] Downloaded getter-derive-rs v1.0.2 [INFO] [stderr] Downloaded libloading v0.6.7 [INFO] [stderr] Downloaded libredox v0.1.3 [INFO] [stderr] Downloaded redox_users v0.4.5 [INFO] [stderr] Downloaded dirs-sys v0.3.7 [INFO] [stderr] Downloaded dirs v2.0.2 [INFO] [stderr] Downloaded term v0.6.1 [INFO] [stderr] Downloaded simplelog v0.7.6 [INFO] [stderr] Downloaded threadpool v1.8.1 [INFO] [stderr] Downloaded error-chain v0.10.0 [INFO] [stderr] Downloaded toml v0.2.1 [INFO] [stderr] Downloaded metadeps v1.1.2 [INFO] [stderr] Downloaded zmq-sys v0.11.0 [INFO] [stderr] Downloaded zmq v0.9.2 [INFO] [stderr] Downloaded godwit-daemon v0.1.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d720f723af7eb1735945b5984471bb5213782a853d2c460f96b806fe16b8ec6f [INFO] running `Command { std: "docker" "start" "-a" "d720f723af7eb1735945b5984471bb5213782a853d2c460f96b806fe16b8ec6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d720f723af7eb1735945b5984471bb5213782a853d2c460f96b806fe16b8ec6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d720f723af7eb1735945b5984471bb5213782a853d2c460f96b806fe16b8ec6f", kill_on_drop: false }` [INFO] [stdout] d720f723af7eb1735945b5984471bb5213782a853d2c460f96b806fe16b8ec6f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6f15279ee23b6832df7f491d13a358919c8088e4e195809c34f861968a249f48 [INFO] running `Command { std: "docker" "start" "-a" "6f15279ee23b6832df7f491d13a358919c8088e4e195809c34f861968a249f48", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling log v0.4.21 [INFO] [stderr] Compiling once_cell v1.19.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling futures-core v0.3.30 [INFO] [stderr] Compiling bytes v0.5.6 [INFO] [stderr] Compiling pin-project-lite v0.1.12 [INFO] [stderr] Compiling itoa v1.0.11 [INFO] [stderr] Compiling pin-project-lite v0.2.14 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling openssl-sys v0.9.102 [INFO] [stderr] Compiling unicase v2.7.0 [INFO] [stderr] Compiling foreign-types-shared v0.1.1 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling openssl v0.10.64 [INFO] [stderr] Compiling tinyvec_macros v0.1.1 [INFO] [stderr] Compiling foreign-types v0.3.2 [INFO] [stderr] Compiling futures-io v0.3.30 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling futures-sink v0.3.30 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling futures-task v0.3.30 [INFO] [stderr] Compiling httparse v1.8.0 [INFO] [stderr] Compiling tinyvec v1.6.0 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling tracing-core v0.1.32 [INFO] [stderr] Compiling http v0.2.12 [INFO] [stderr] Compiling error-chain v0.10.0 [INFO] [stderr] Compiling percent-encoding v2.3.1 [INFO] [stderr] Compiling futures-util v0.3.30 [INFO] [stderr] Compiling linux-raw-sys v0.4.13 [INFO] [stderr] Compiling openssl-probe v0.1.5 [INFO] [stderr] Compiling toml v0.2.1 [INFO] [stderr] Compiling try-lock v0.2.5 [INFO] [stderr] Compiling want v0.3.1 [INFO] [stderr] Compiling form_urlencoded v1.2.1 [INFO] [stderr] Compiling metadeps v1.1.2 [INFO] [stderr] Compiling futures-channel v0.3.30 [INFO] [stderr] Compiling tracing v0.1.40 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling rustix v0.38.32 [INFO] [stderr] Compiling httpdate v0.3.2 [INFO] [stderr] Compiling unicode-bidi v0.3.15 [INFO] [stderr] Compiling mime_guess v2.0.4 [INFO] [stderr] Compiling tower-service v0.3.2 [INFO] [stderr] Compiling crc32fast v1.4.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling zmq-sys v0.11.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling mime v0.3.17 [INFO] [stderr] Compiling ryu v1.0.17 [INFO] [stderr] Compiling http-body v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling miniz_oxide v0.7.2 [INFO] [stderr] Compiling encoding_rs v0.8.33 [INFO] [stderr] Compiling base64 v0.13.1 [INFO] [stderr] Compiling ipnet v2.9.0 [INFO] [stderr] Compiling unicode-normalization v0.1.23 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling lz4-sys v1.9.4 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling socket2 v0.3.19 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling idna v0.5.0 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling filetime v0.2.23 [INFO] [stderr] Compiling flate2 v1.0.28 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling zmq v0.9.2 [INFO] [stderr] Checking dirs-sys v0.3.7 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Checking term v0.6.1 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling tokio v0.2.25 [INFO] [stderr] Checking simplelog v0.7.6 [INFO] [stderr] Compiling url v2.5.0 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking libloading v0.6.7 [INFO] [stderr] Compiling xattr v1.3.1 [INFO] [stderr] Compiling tempfile v3.10.1 [INFO] [stderr] Checking custom_error v1.9.2 [INFO] [stderr] Compiling tar v0.4.40 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Compiling getter-derive-rs v1.0.2 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Compiling tokio-util v0.3.1 [INFO] [stderr] Compiling pin-project v1.1.5 [INFO] [stderr] Compiling tracing-futures v0.2.5 [INFO] [stderr] Compiling h2 v0.2.7 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling tokio-tls v0.3.1 [INFO] [stderr] Compiling hyper v0.13.10 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling hyper-tls v0.4.3 [INFO] [stderr] Compiling reqwest v0.10.10 [INFO] [stderr] Checking lz4 v1.24.0 [INFO] [stderr] Compiling godwit-daemon v0.1.10 [INFO] [stderr] Checking gwd-backend-firefox v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/errors.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `dirs` is imported redundantly [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use dirs; [INFO] [stdout] | ^^^^ the item `dirs` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/lib.rs:11:18 [INFO] [stdout] | [INFO] [stdout] 11 | use serde_json::{self, Value}; [INFO] [stdout] | ^^^^ the item `serde_json` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Seek` is imported redundantly [INFO] [stdout] --> src/lib.rs:13:27 [INFO] [stdout] | [INFO] [stdout] 13 | use std::io::{prelude::*, Seek, SeekFrom}; [INFO] [stdout] | ---------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | the item `Seek` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/errors.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `dirs` is imported redundantly [INFO] [stdout] --> src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use dirs; [INFO] [stdout] | ^^^^ the item `dirs` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/lib.rs:11:18 [INFO] [stdout] | [INFO] [stdout] 11 | use serde_json::{self, Value}; [INFO] [stdout] | ^^^^ the item `serde_json` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Seek` is imported redundantly [INFO] [stdout] --> src/lib.rs:13:27 [INFO] [stdout] | [INFO] [stdout] 13 | use std::io::{prelude::*, Seek, SeekFrom}; [INFO] [stdout] | ---------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | the item `Seek` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `dyn Registrar`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:66:35 [INFO] [stdout] | [INFO] [stdout] 66 | extern "C" fn register(registrar: &mut dyn Registrar) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = note: trait objects have no C equivalent [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `dyn Registrar`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:66:35 [INFO] [stdout] | [INFO] [stdout] 66 | extern "C" fn register(registrar: &mut dyn Registrar) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = note: trait objects have no C equivalent [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.38s [INFO] running `Command { std: "docker" "inspect" "6f15279ee23b6832df7f491d13a358919c8088e4e195809c34f861968a249f48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f15279ee23b6832df7f491d13a358919c8088e4e195809c34f861968a249f48", kill_on_drop: false }` [INFO] [stdout] 6f15279ee23b6832df7f491d13a358919c8088e4e195809c34f861968a249f48