[INFO] fetching crate logging_content 0.1.1...
[INFO] checking logging_content-0.1.1 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-150727
[INFO] extracting crate logging_content 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate logging_content 0.1.1
[INFO] finished tweaking crates.io crate logging_content 0.1.1
[INFO] tweaked toml for crates.io crate logging_content 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate logging_content 0.1.1 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate logging_content 0.1.1 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7949ccfc9340b8fb62b4762ec3132784cac906a52d57acc6f0c20736eabf2fba
[INFO] running `Command { std: "docker" "start" "-a" "7949ccfc9340b8fb62b4762ec3132784cac906a52d57acc6f0c20736eabf2fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7949ccfc9340b8fb62b4762ec3132784cac906a52d57acc6f0c20736eabf2fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7949ccfc9340b8fb62b4762ec3132784cac906a52d57acc6f0c20736eabf2fba", kill_on_drop: false }`
[INFO] [stdout] 7949ccfc9340b8fb62b4762ec3132784cac906a52d57acc6f0c20736eabf2fba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a6ff3a1846cf762f94a33085af687b6f071e1ae77993190e9530ed367d4250e
[INFO] running `Command { std: "docker" "start" "-a" "1a6ff3a1846cf762f94a33085af687b6f071e1ae77993190e9530ed367d4250e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
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[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
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[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking logging_content v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stdout] warning: methods `log_error_msg`, `log_debug_msg`, and `log_trace_msg` are never used
[INFO] [stdout]   --> src/lib.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |         pub trait LogContent: Sized {
[INFO] [stdout]    |                   ---------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 18 |             fn log_error_msg(self, msg: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |             fn log_debug_msg(self, msg: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |             fn log_trace_msg(self, msg: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/option.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     crate::trait_LogContent!();
[INFO] [stdout]    |     -------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::trait_LogContent` which comes from the expansion of the macro `crate::trait_LogContent` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `log_warn_msg`, `log_debug_msg`, and `log_trace_msg` are never used
[INFO] [stdout]   --> src/lib.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |         pub trait LogContent: Sized {
[INFO] [stdout]    |                   ---------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 22 |             fn log_warn_msg(self, msg: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |             fn log_debug_msg(self, msg: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |             fn log_trace_msg(self, msg: &str) -> Self {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/result.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     crate::trait_LogContent!();
[INFO] [stdout]    |     -------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `$crate::trait_LogContent` which comes from the expansion of the macro `crate::trait_LogContent` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `log_error_msg`, `log_warn_msg`, and `log_trace_msg` are never used
[INFO] [stdout]    --> src/lib.rs:18:16
[INFO] [stdout]     |
[INFO] [stdout]  15 |         pub trait LogContent: Sized {
[INFO] [stdout]     |                   ---------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout]  18 |             fn log_error_msg(self, msg: &str) -> Self {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  22 |             fn log_warn_msg(self, msg: &str) -> Self {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  34 |             fn log_trace_msg(self, msg: &str) -> Self {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |         trait_LogContent!();
[INFO] [stdout]     |         ------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::trait_LogContent` which comes from the expansion of the macro `trait_LogContent` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.85s
[INFO] running `Command { std: "docker" "inspect" "1a6ff3a1846cf762f94a33085af687b6f071e1ae77993190e9530ed367d4250e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a6ff3a1846cf762f94a33085af687b6f071e1ae77993190e9530ed367d4250e", kill_on_drop: false }`
[INFO] [stdout] 1a6ff3a1846cf762f94a33085af687b6f071e1ae77993190e9530ed367d4250e