[INFO] fetching crate btrfsutil 0.2.0... [INFO] checking btrfsutil-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate btrfsutil 0.2.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate btrfsutil 0.2.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate btrfsutil 0.2.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate btrfsutil 0.2.0 [INFO] tweaked toml for crates.io crate btrfsutil 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate crates.io crate btrfsutil 0.2.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libmount v0.1.15 [INFO] [stderr] Downloaded btrfsutil-sys v1.3.0 [INFO] [stderr] Downloaded loopdev v0.4.0 [INFO] [stderr] Downloaded tempfile v3.7.0 [INFO] [stderr] Downloaded serde v1.0.178 [INFO] [stderr] Downloaded prettyplease v0.2.12 [INFO] [stderr] Downloaded bindgen v0.66.1 [INFO] [stderr] Downloaded syn v2.0.27 [INFO] [stderr] Downloaded serde_derive v1.0.178 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6e9a10fda029179d1ee08cd9dfe58de9963afdf017b2e51c1d8ecadba443636c [INFO] running `Command { std: "docker" "start" "-a" "6e9a10fda029179d1ee08cd9dfe58de9963afdf017b2e51c1d8ecadba443636c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6e9a10fda029179d1ee08cd9dfe58de9963afdf017b2e51c1d8ecadba443636c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e9a10fda029179d1ee08cd9dfe58de9963afdf017b2e51c1d8ecadba443636c", kill_on_drop: false }` [INFO] [stdout] 6e9a10fda029179d1ee08cd9dfe58de9963afdf017b2e51c1d8ecadba443636c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 92ffd092230e21cd5802e9b91777641f401ddcac6a2fedfb118f7d6dc48a770d [INFO] running `Command { std: "docker" "start" "-a" "92ffd092230e21cd5802e9b91777641f401ddcac6a2fedfb118f7d6dc48a770d", kill_on_drop: false }` [INFO] [stderr] Compiling regex-syntax v0.7.4 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling shlex v1.1.0 [INFO] [stderr] Compiling prettyplease v0.2.12 [INFO] [stderr] Compiling serde v1.0.178 [INFO] [stderr] Compiling clang-sys v1.6.1 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling libloading v0.7.4 [INFO] [stderr] Compiling either v1.9.0 [INFO] [stderr] Compiling serde_derive v1.0.178 [INFO] [stderr] Compiling bindgen v0.66.1 [INFO] [stderr] Compiling bindgen v0.59.2 [INFO] [stderr] Compiling bitflags v2.3.3 [INFO] [stderr] Compiling log v0.4.19 [INFO] [stderr] Compiling syn v2.0.27 [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling rustix v0.38.4 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking linux-raw-sys v0.4.3 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking fastrand v2.0.0 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling which v4.4.0 [INFO] [stderr] Checking time v0.1.45 [INFO] [stderr] Checking errno v0.2.8 [INFO] [stderr] Checking chrono v0.4.26 [INFO] [stderr] Compiling regex-automata v0.3.4 [INFO] [stderr] Compiling cexpr v0.6.0 [INFO] [stderr] Checking tempfile v3.7.0 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling regex v1.9.1 [INFO] [stderr] Checking libmount v0.1.15 [INFO] [stderr] Compiling thiserror-impl v1.0.44 [INFO] [stderr] Checking thiserror v1.0.44 [INFO] [stderr] Compiling loopdev v0.4.0 [INFO] [stderr] Compiling btrfsutil-sys v1.3.0 [INFO] [stderr] Checking btrfsutil v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/error/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/subvolume/iterator.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/subvolume/iterator.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/subvolume/subvol.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/subvolume/subvol_info.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/error/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/subvolume/iterator.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/subvolume/iterator.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/subvolume/subvol.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Path` is imported redundantly [INFO] [stdout] --> src/subvolume/subvol.rs:407:9 [INFO] [stdout] | [INFO] [stdout] 404 | use super::*; [INFO] [stdout] | -------- the item `Path` is already imported here [INFO] [stdout] ... [INFO] [stdout] 407 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/subvolume/subvol_info.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tempfile` is imported redundantly [INFO] [stdout] --> src/testing/loopbacked.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 13 | use tempfile::{self, TempDir}; [INFO] [stdout] | ^^^^ the item `tempfile` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.92s [INFO] running `Command { std: "docker" "inspect" "92ffd092230e21cd5802e9b91777641f401ddcac6a2fedfb118f7d6dc48a770d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92ffd092230e21cd5802e9b91777641f401ddcac6a2fedfb118f7d6dc48a770d", kill_on_drop: false }` [INFO] [stdout] 92ffd092230e21cd5802e9b91777641f401ddcac6a2fedfb118f7d6dc48a770d [INFO] checking btrfsutil-0.2.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate btrfsutil 0.2.0 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate btrfsutil 0.2.0 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate btrfsutil 0.2.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate btrfsutil 0.2.0 [INFO] tweaked toml for crates.io crate btrfsutil 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate btrfsutil 0.2.0 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b5511702a2e0e06e2044f2e1f306ae5207ceba217594360ea94edebec23a28d9 [INFO] running `Command { std: "docker" "start" "-a" "b5511702a2e0e06e2044f2e1f306ae5207ceba217594360ea94edebec23a28d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b5511702a2e0e06e2044f2e1f306ae5207ceba217594360ea94edebec23a28d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5511702a2e0e06e2044f2e1f306ae5207ceba217594360ea94edebec23a28d9", kill_on_drop: false }` [INFO] [stdout] b5511702a2e0e06e2044f2e1f306ae5207ceba217594360ea94edebec23a28d9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 16b32966c62491bff957a4f4de149f6058d627e2d5d71f4a11b966f4be9fae46 [INFO] running `Command { std: "docker" "start" "-a" "16b32966c62491bff957a4f4de149f6058d627e2d5d71f4a11b966f4be9fae46", kill_on_drop: false }` [INFO] [stderr] Compiling regex-syntax v0.7.4 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Compiling shlex v1.1.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling prettyplease v0.2.12 [INFO] [stderr] Compiling serde v1.0.178 [INFO] [stderr] Compiling either v1.9.0 [INFO] [stderr] Compiling clang-sys v1.6.1 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling libloading v0.7.4 [INFO] [stderr] Compiling serde_derive v1.0.178 [INFO] [stderr] Compiling bindgen v0.66.1 [INFO] [stderr] Compiling log v0.4.19 [INFO] [stderr] Compiling syn v2.0.27 [INFO] [stderr] Compiling bitflags v2.3.3 [INFO] [stderr] Compiling bindgen v0.59.2 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.178/src/lib_precompiled.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | panic!(); [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `serde_derive` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "16b32966c62491bff957a4f4de149f6058d627e2d5d71f4a11b966f4be9fae46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16b32966c62491bff957a4f4de149f6058d627e2d5d71f4a11b966f4be9fae46", kill_on_drop: false }` [INFO] [stdout] 16b32966c62491bff957a4f4de149f6058d627e2d5d71f4a11b966f4be9fae46