[INFO] fetching crate auto_unwrap 1.1.0...
[INFO] checking auto_unwrap-1.1.0 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate auto_unwrap 1.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate auto_unwrap 1.1.0 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate auto_unwrap 1.1.0
[INFO] finished tweaking crates.io crate auto_unwrap 1.1.0
[INFO] tweaked toml for crates.io crate auto_unwrap 1.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 5 packages
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99da1e14da09de8bb570023da3b08c4809196b739bf5ad4ddc51318fb6d022c7
[INFO] running `Command { std: "docker" "start" "-a" "99da1e14da09de8bb570023da3b08c4809196b739bf5ad4ddc51318fb6d022c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99da1e14da09de8bb570023da3b08c4809196b739bf5ad4ddc51318fb6d022c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99da1e14da09de8bb570023da3b08c4809196b739bf5ad4ddc51318fb6d022c7", kill_on_drop: false }`
[INFO] [stdout] 99da1e14da09de8bb570023da3b08c4809196b739bf5ad4ddc51318fb6d022c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72ba8c455a72d37eeb9d953ca8c6cbd7fb3020dfe38d46d368a4ab59e9f8b916
[INFO] running `Command { std: "docker" "start" "-a" "72ba8c455a72d37eeb9d953ca8c6cbd7fb3020dfe38d46d368a4ab59e9f8b916", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking quote v1.0.36
[INFO] [stderr]     Checking auto_unwrap v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::default::default`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::default::default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^ no `default` in `default`
[INFO] [stdout]    |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::default::Default;
[INFO] [stdout]    |                   ~~~~~~~
[INFO] [stdout] help: consider importing this module instead
[INFO] [stdout]    |
[INFO] [stdout] 55 | use core::default;
[INFO] [stdout]    |     ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `default_free_fn`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(default_free_fn)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::default::default`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::default::default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^ no `default` in `default`
[INFO] [stdout]    |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::default::Default;
[INFO] [stdout]    |                   ~~~~~~~
[INFO] [stdout] help: consider importing this module instead
[INFO] [stdout]    |
[INFO] [stdout] 55 | use core::default;
[INFO] [stdout]    |     ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `default_free_fn`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(default_free_fn)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `auto_unwrap` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `auto_unwrap` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "72ba8c455a72d37eeb9d953ca8c6cbd7fb3020dfe38d46d368a4ab59e9f8b916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72ba8c455a72d37eeb9d953ca8c6cbd7fb3020dfe38d46d368a4ab59e9f8b916", kill_on_drop: false }`
[INFO] [stdout] 72ba8c455a72d37eeb9d953ca8c6cbd7fb3020dfe38d46d368a4ab59e9f8b916
[INFO] checking auto_unwrap-1.1.0 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate auto_unwrap 1.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate auto_unwrap 1.1.0 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate auto_unwrap 1.1.0
[INFO] finished tweaking crates.io crate auto_unwrap 1.1.0
[INFO] tweaked toml for crates.io crate auto_unwrap 1.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 5 packages
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24b0c0cc7a91a5d64a445c30786069fb4497a9f92f327ac03b8585a57897dab9
[INFO] running `Command { std: "docker" "start" "-a" "24b0c0cc7a91a5d64a445c30786069fb4497a9f92f327ac03b8585a57897dab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24b0c0cc7a91a5d64a445c30786069fb4497a9f92f327ac03b8585a57897dab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24b0c0cc7a91a5d64a445c30786069fb4497a9f92f327ac03b8585a57897dab9", kill_on_drop: false }`
[INFO] [stdout] 24b0c0cc7a91a5d64a445c30786069fb4497a9f92f327ac03b8585a57897dab9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0741e4fd13e647f437bccaae6a9b4bd8699dc03ac592d03beb1ea14ba5d54a37
[INFO] running `Command { std: "docker" "start" "-a" "0741e4fd13e647f437bccaae6a9b4bd8699dc03ac592d03beb1ea14ba5d54a37", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking quote v1.0.36
[INFO] [stderr]     Checking auto_unwrap v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::default::default`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::default::default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^ no `default` in `default`
[INFO] [stdout]    |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::default::Default;
[INFO] [stdout]    |                   ~~~~~~~
[INFO] [stdout] help: consider importing this module instead
[INFO] [stdout]    |
[INFO] [stdout] 55 | use core::default;
[INFO] [stdout]    |     ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `default_free_fn`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(default_free_fn)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::default::default`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::default::default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^ no `default` in `default`
[INFO] [stdout]    |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::default::Default;
[INFO] [stdout]    |                   ~~~~~~~
[INFO] [stdout] help: consider importing this module instead
[INFO] [stdout]    |
[INFO] [stdout] 55 | use core::default;
[INFO] [stdout]    |     ~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `default_free_fn`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(default_free_fn)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `auto_unwrap` (lib test) due to 3 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0432, E0635.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `auto_unwrap` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "0741e4fd13e647f437bccaae6a9b4bd8699dc03ac592d03beb1ea14ba5d54a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0741e4fd13e647f437bccaae6a9b4bd8699dc03ac592d03beb1ea14ba5d54a37", kill_on_drop: false }`
[INFO] [stdout] 0741e4fd13e647f437bccaae6a9b4bd8699dc03ac592d03beb1ea14ba5d54a37
