[INFO] fetching crate fax_derive 0.1.0...
[INFO] checking fax_derive-0.1.0 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate fax_derive 0.1.0 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate fax_derive 0.1.0 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fax_derive 0.1.0
[INFO] finished tweaking crates.io crate fax_derive 0.1.0
[INFO] tweaked toml for crates.io crate fax_derive 0.1.0 written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99c9d43233a72d2b9cb6e370853cd159cbb8bc42252e41d29f1e5d0f17665d2d
[INFO] running `Command { std: "docker" "start" "-a" "99c9d43233a72d2b9cb6e370853cd159cbb8bc42252e41d29f1e5d0f17665d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99c9d43233a72d2b9cb6e370853cd159cbb8bc42252e41d29f1e5d0f17665d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99c9d43233a72d2b9cb6e370853cd159cbb8bc42252e41d29f1e5d0f17665d2d", kill_on_drop: false }`
[INFO] [stdout] 99c9d43233a72d2b9cb6e370853cd159cbb8bc42252e41d29f1e5d0f17665d2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29089978e1d5d2a0ef9584377c09a7580f8eed7dca87e6cb6a52b2f4c1863cf4
[INFO] running `Command { std: "docker" "start" "-a" "29089978e1d5d2a0ef9584377c09a7580f8eed7dca87e6cb6a52b2f4c1863cf4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking fax_derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `common_prefix_len`
[INFO] [stdout]    --> src/lib.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 |     fn common_prefix_len(self, other: Bits) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `align_left`
[INFO] [stdout]    --> src/lib.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn align_left(self) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/lib.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/lib.rs:343:8
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `common_prefix_len`
[INFO] [stdout]    --> src/lib.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 |     fn common_prefix_len(self, other: Bits) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `align_left`
[INFO] [stdout]    --> src/lib.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn align_left(self) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/lib.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/lib.rs:343:8
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.73s
[INFO] running `Command { std: "docker" "inspect" "29089978e1d5d2a0ef9584377c09a7580f8eed7dca87e6cb6a52b2f4c1863cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29089978e1d5d2a0ef9584377c09a7580f8eed7dca87e6cb6a52b2f4c1863cf4", kill_on_drop: false }`
[INFO] [stdout] 29089978e1d5d2a0ef9584377c09a7580f8eed7dca87e6cb6a52b2f4c1863cf4