[INFO] fetching crate rust_twostack 0.15.0...
[INFO] testing rust_twostack-0.15.0 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate rust_twostack 0.15.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate rust_twostack 0.15.0
[INFO] finished tweaking crates.io crate rust_twostack 0.15.0
[INFO] tweaked toml for crates.io crate rust_twostack 0.15.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_twostack 0.15.0 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 135 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 109fece6a0490bde6f0c76711536d89f48b83dd12a03092d416b51b69dfc1e80
[INFO] running `Command { std: "docker" "start" "-a" "109fece6a0490bde6f0c76711536d89f48b83dd12a03092d416b51b69dfc1e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "109fece6a0490bde6f0c76711536d89f48b83dd12a03092d416b51b69dfc1e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109fece6a0490bde6f0c76711536d89f48b83dd12a03092d416b51b69dfc1e80", kill_on_drop: false }`
[INFO] [stdout] 109fece6a0490bde6f0c76711536d89f48b83dd12a03092d416b51b69dfc1e80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c27a500b08b360b4b00187cf1b0112ca4458bb1a329a2ae1e9683943f7b5b05e
[INFO] running `Command { std: "docker" "start" "-a" "c27a500b08b360b4b00187cf1b0112ca4458bb1a329a2ae1e9683943f7b5b05e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling dtoa v1.0.11
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[INFO] [stderr]    Compiling bincode2 v2.0.1
[INFO] [stderr]    Compiling neurons v2.6.2
[INFO] [stderr]    Compiling rust_dynamic v0.49.0
[INFO] [stderr]    Compiling rust_twostack v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/ts_value.rs:20:48
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   return Err(err);
[INFO] [stdout]    |                              --- ^^^ expected `Box<dyn Error>`, found `Error`
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Box<dyn std::error::Error>`
[INFO] [stdout]               found struct `easy_error::Error`
[INFO] [stdout]    = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html
[INFO] [stdout] help: the type constructed contains `easy_error::Error` due to the type of the argument passed
[INFO] [stdout]   --> src/ts_value.rs:20:44
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...                   return Err(err);
[INFO] [stdout]    |                              ^^^^---^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  this argument influences the type of `Err`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/result.rs:566:4
[INFO] [stdout] help: store this in the heap by calling `Box::new`
[INFO] [stdout]    |
[INFO] [stdout] 20 |                                     return Err(Box::new(err));
[INFO] [stdout]    |                                                +++++++++   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/ts_value.rs:43:40
[INFO] [stdout]    |
[INFO] [stdout] 43 | ...                   return Err(err);
[INFO] [stdout]    |                              --- ^^^ expected `Box<dyn Error>`, found `Error`
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Box<dyn std::error::Error>`
[INFO] [stdout]               found struct `easy_error::Error`
[INFO] [stdout]    = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html
[INFO] [stdout] help: the type constructed contains `easy_error::Error` due to the type of the argument passed
[INFO] [stdout]   --> src/ts_value.rs:43:36
[INFO] [stdout]    |
[INFO] [stdout] 43 | ...                   return Err(err);
[INFO] [stdout]    |                              ^^^^---^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  this argument influences the type of `Err`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> /rustc/1f7f8ea0721a3b1eb73e6c6d25cccb371434b320/library/core/src/result.rs:566:4
[INFO] [stdout] help: store this in the heap by calling `Box::new`
[INFO] [stdout]    |
[INFO] [stdout] 43 |                             return Err(Box::new(err));
[INFO] [stdout]    |                                        +++++++++   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_twostack` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c27a500b08b360b4b00187cf1b0112ca4458bb1a329a2ae1e9683943f7b5b05e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c27a500b08b360b4b00187cf1b0112ca4458bb1a329a2ae1e9683943f7b5b05e", kill_on_drop: false }`
[INFO] [stdout] c27a500b08b360b4b00187cf1b0112ca4458bb1a329a2ae1e9683943f7b5b05e
