[INFO] fetching crate custom_error 1.7.1...
[INFO] checking custom_error-1.7.1 against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] extracting crate custom_error 1.7.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate custom_error 1.7.1 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate custom_error 1.7.1
[INFO] finished tweaking crates.io crate custom_error 1.7.1
[INFO] tweaked toml for crates.io crate custom_error 1.7.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "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" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4208803111a92a00359659a9ef3207d3b4a01219dfeca4cf3daeb3ea8b5be93
[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" "f4208803111a92a00359659a9ef3207d3b4a01219dfeca4cf3daeb3ea8b5be93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4208803111a92a00359659a9ef3207d3b4a01219dfeca4cf3daeb3ea8b5be93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4208803111a92a00359659a9ef3207d3b4a01219dfeca4cf3daeb3ea8b5be93", kill_on_drop: false }`
[INFO] [stdout] f4208803111a92a00359659a9ef3207d3b4a01219dfeca4cf3daeb3ea8b5be93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "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] a405f6d746034f5622728f96d39c8067e96265539a8dc42b225dda2bcf45b042
[INFO] running `Command { std: "docker" "start" "-a" "a405f6d746034f5622728f96d39c8067e96265539a8dc42b225dda2bcf45b042", kill_on_drop: false }`
[INFO] [stderr]     Checking custom_error v1.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         );* )*;
[INFO] [stdout]     |                               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 456 |         custom_error!(MyError Bad="bad");
[INFO] [stdout]     |         --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         );* )*;
[INFO] [stdout]     |                               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 469 |         custom_error!(MyError NotPerfect=":/", Bad="bad", Awfull="arghhh");
[INFO] [stdout]     |         ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                           );* )*;
[INFO] [stdout]     |                                 ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 475 | /         custom_error!(MyError
[INFO] [stdout] 476 | |             Bad                            = "bad",
[INFO] [stdout] 477 | |             Catastrophic{broken_things:u8} = "{broken_things} things are broken"
[INFO] [stdout] 478 | |         );
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                           );* )*;
[INFO] [stdout]     |                                 ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 488 | /         custom_error! {MyError
[INFO] [stdout] 489 | |             /// A bad error
[INFO] [stdout] 490 | |             Bad="bad",
[INFO] [stdout] 491 | |             /// Terrible error
[INFO] [stdout] 492 | |             Terrible="terrible"
[INFO] [stdout] 493 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                           );* )*;
[INFO] [stdout]     |                                 ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 514 | /         custom_error! {
[INFO] [stdout] 515 | |             #[derive(PartialEq, PartialOrd)]
[INFO] [stdout] 516 | |             #[derive(Clone)]
[INFO] [stdout] 517 | |             MyError A = "A", B{b:u8} = "B({b})", C = "C"
[INFO] [stdout] 518 | |         };
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                           );* )*;
[INFO] [stdout]     |                                 ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 534 | /         custom_error! {
[INFO] [stdout] 535 | |            ///Doc comment
[INFO] [stdout] 536 | |            #[derive(PartialEq, PartialOrd)]
[INFO] [stdout] 537 | |            pub MyError A = "A"
[INFO] [stdout] 538 | |         };
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:304:18
[INFO] [stdout]     |
[INFO] [stdout] 304 |                 );*
[INFO] [stdout]     |                  ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         );* )*;
[INFO] [stdout]     |                               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 671 |         custom_error!(MyError Zero="", One{x:u8}="", Two{x:u8, source:io::Error}="{x}");
[INFO] [stdout]     |         -------------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         );* )*;
[INFO] [stdout]     |                               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 707 |             custom_error! {pub MyError Case1="case1"}
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         );* )*;
[INFO] [stdout]     |                               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 730 |         custom_error! {MyError<X,Y> E1{x:X,y:Y}="x={x} y={y}", E2="e2"}
[INFO] [stdout]     |         --------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         );* )*;
[INFO] [stdout]     |                               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 743 |         custom_error! {MyError Bad="bad"}
[INFO] [stdout]     |         --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         );* )*;
[INFO] [stdout]     |                               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 755 |         custom_error! {MyError1 A="a",}
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                         );* )*;
[INFO] [stdout]     |                               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 756 |         custom_error! {MyError2 A="a", B="b",}
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |                           );* )*;
[INFO] [stdout]     |                                 ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 765 | /         custom_error! {MyError
[INFO] [stdout] 766 | |             Complex{a:u8, b:u8} = @{
[INFO] [stdout] 767 | |                 if a+b == 0 {
[INFO] [stdout] 768 | |                     "zero".to_string()
[INFO] [stdout] ...   |
[INFO] [stdout] 773 | |             Simple = "simple"
[INFO] [stdout] 774 | |         }
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "a405f6d746034f5622728f96d39c8067e96265539a8dc42b225dda2bcf45b042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a405f6d746034f5622728f96d39c8067e96265539a8dc42b225dda2bcf45b042", kill_on_drop: false }`
[INFO] [stdout] a405f6d746034f5622728f96d39c8067e96265539a8dc42b225dda2bcf45b042
