[INFO] fetching crate is-same-derive 0.1.1...
[INFO] checking is-same-derive-0.1.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate is-same-derive 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate is-same-derive 0.1.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate is-same-derive 0.1.1
[INFO] finished tweaking crates.io crate is-same-derive 0.1.1
[INFO] tweaked toml for crates.io crate is-same-derive 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c4d78c0e278f1b3c762dbae2e4ebb693ec2d56859efca916b9b8d069b681af1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8c4d78c0e278f1b3c762dbae2e4ebb693ec2d56859efca916b9b8d069b681af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c4d78c0e278f1b3c762dbae2e4ebb693ec2d56859efca916b9b8d069b681af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c4d78c0e278f1b3c762dbae2e4ebb693ec2d56859efca916b9b8d069b681af1", kill_on_drop: false }`
[INFO] [stdout] 8c4d78c0e278f1b3c762dbae2e4ebb693ec2d56859efca916b9b8d069b681af1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 444a42d937ee3e2ac804cc66fdc48f94ea388be5740b1f1dd2f32a9d27d338aa
[INFO] running `Command { std: "docker" "start" "-a" "444a42d937ee3e2ac804cc66fdc48f94ea388be5740b1f1dd2f32a9d27d338aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]     Checking is-same-derive v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `is_same`
[INFO] [stdout]  --> tests/test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use is_same::IsSame;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `is_same`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `is_same` in crate root
[INFO] [stdout]  --> tests/test.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(IsSame)]
[INFO] [stdout]   |          ^^^^^^ could not find `is_same` in crate root
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `is_same` in crate root
[INFO] [stdout]   --> tests/test.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(IsSame)]
[INFO] [stdout]    |          ^^^^^^ could not find `is_same` in crate root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `is_same` in crate root
[INFO] [stdout]   --> tests/test.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[derive(IsSame)]
[INFO] [stdout]    |          ^^^^^^ could not find `is_same` in crate root
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `is-same-derive`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "444a42d937ee3e2ac804cc66fdc48f94ea388be5740b1f1dd2f32a9d27d338aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "444a42d937ee3e2ac804cc66fdc48f94ea388be5740b1f1dd2f32a9d27d338aa", kill_on_drop: false }`
[INFO] [stdout] 444a42d937ee3e2ac804cc66fdc48f94ea388be5740b1f1dd2f32a9d27d338aa