[INFO] fetching crate idmap 0.2.19...
[INFO] checking idmap-0.2.19 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate idmap 0.2.19 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate idmap 0.2.19 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate idmap 0.2.19
[INFO] finished tweaking crates.io crate idmap 0.2.19
[INFO] tweaked toml for crates.io crate idmap 0.2.19 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixedbitset v0.3.2
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded idmap-derive v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7555f8845a08161f109dd2b4fc03835d7c3c02eaaa48cb58cb5e3f9fc4810412
[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" "7555f8845a08161f109dd2b4fc03835d7c3c02eaaa48cb58cb5e3f9fc4810412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7555f8845a08161f109dd2b4fc03835d7c3c02eaaa48cb58cb5e3f9fc4810412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7555f8845a08161f109dd2b4fc03835d7c3c02eaaa48cb58cb5e3f9fc4810412", kill_on_drop: false }`
[INFO] [stdout] 7555f8845a08161f109dd2b4fc03835d7c3c02eaaa48cb58cb5e3f9fc4810412
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcbf1de38f89a7591cefa5dc29b3ec2b716789654e7bbb7bebbbd5b0d6d3102d
[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" "dcbf1de38f89a7591cefa5dc29b3ec2b716789654e7bbb7bebbbd5b0d6d3102d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking idmap v0.2.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_test v1.0.125
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling idmap-derive v0.1.2
[INFO] [stdout] error[E0463]: can't find crate for `serde`
[INFO] [stdout]  --> tests/basic.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate serde;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `idmap`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `serde`
[INFO] [stdout]  --> tests/direct.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate serde;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `serde`
[INFO] [stdout]  --> tests/set.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate serde;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "dcbf1de38f89a7591cefa5dc29b3ec2b716789654e7bbb7bebbbd5b0d6d3102d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbf1de38f89a7591cefa5dc29b3ec2b716789654e7bbb7bebbbd5b0d6d3102d", kill_on_drop: false }`
[INFO] [stdout] dcbf1de38f89a7591cefa5dc29b3ec2b716789654e7bbb7bebbbd5b0d6d3102d