[INFO] cloning repository https://github.com/elipmoc/RustLambda
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/elipmoc/RustLambda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felipmoc%2FRustLambda", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felipmoc%2FRustLambda'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94b33732a57ae0b6a40da336927e46c3bfaa67e5
[INFO] testing elipmoc/RustLambda against master#ff2c56344c764af598ad33027e9c7a48881808ef for pr-118825
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felipmoc%2FRustLambda" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/elipmoc/RustLambda on toolchain ff2c56344c764af598ad33027e9c7a48881808ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/elipmoc/RustLambda
[INFO] finished tweaking git repo https://github.com/elipmoc/RustLambda
[INFO] tweaked toml for git repo https://github.com/elipmoc/RustLambda written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/elipmoc/RustLambda 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" "+ff2c56344c764af598ad33027e9c7a48881808ef" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded combine v3.3.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 716ce6082a7418696e6f24922c4ed886ddd6aa583f92b77ba8f42bb21b39097e
[INFO] running `Command { std: "docker" "start" "-a" "716ce6082a7418696e6f24922c4ed886ddd6aa583f92b77ba8f42bb21b39097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "716ce6082a7418696e6f24922c4ed886ddd6aa583f92b77ba8f42bb21b39097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "716ce6082a7418696e6f24922c4ed886ddd6aa583f92b77ba8f42bb21b39097e", kill_on_drop: false }`
[INFO] [stdout] 716ce6082a7418696e6f24922c4ed886ddd6aa583f92b77ba8f42bb21b39097e
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8963c8f7a34ddced9b1831a68e0cbb3e5992fc1c68c1d930e171d28dbafd365
[INFO] running `Command { std: "docker" "start" "-a" "a8963c8f7a34ddced9b1831a68e0cbb3e5992fc1c68c1d930e171d28dbafd365", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling libc v0.2.41
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling combine v3.3.0
[INFO] [stderr]    Compiling rustλ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> lambda/lambda_trait.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn convert(&From) -> Self;
[INFO] [stdout]    |                ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &From`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "a8963c8f7a34ddced9b1831a68e0cbb3e5992fc1c68c1d930e171d28dbafd365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8963c8f7a34ddced9b1831a68e0cbb3e5992fc1c68c1d930e171d28dbafd365", kill_on_drop: false }`
[INFO] [stdout] a8963c8f7a34ddced9b1831a68e0cbb3e5992fc1c68c1d930e171d28dbafd365
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3fc48c401a68902e4251a0b5414c236376b895d0f8ba4703175fa47fd89b433
[INFO] running `Command { std: "docker" "start" "-a" "c3fc48c401a68902e4251a0b5414c236376b895d0f8ba4703175fa47fd89b433", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustλ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> lambda/lambda_trait.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn convert(&From) -> Self;
[INFO] [stdout]    |                ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &From`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> lambda/lambda_trait.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn convert(&From) -> Self;
[INFO] [stdout]    |                ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &From`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "c3fc48c401a68902e4251a0b5414c236376b895d0f8ba4703175fa47fd89b433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3fc48c401a68902e4251a0b5414c236376b895d0f8ba4703175fa47fd89b433", kill_on_drop: false }`
[INFO] [stdout] c3fc48c401a68902e4251a0b5414c236376b895d0f8ba4703175fa47fd89b433
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce1c89d95a1e89d9a879d6674074592c1de94b9c492a144269433e5155ae0b4c
[INFO] running `Command { std: "docker" "start" "-a" "ce1c89d95a1e89d9a879d6674074592c1de94b9c492a144269433e5155ae0b4c", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> lambda/lambda_trait.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn convert(&From) -> Self;
[INFO] [stderr]    |                ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &From`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rustλ` (lib) generated 1 warning (run `cargo fix --lib -p rustλ` to apply 1 suggestion)
[INFO] [stderr] warning: `rustλ` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests lambda/lib.rs (/opt/rustwide/target/debug/deps/lambda-4174f76be90aa229)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustλ-a8b934d4665907de)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-67be882d4d4eacba)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test beta_convert_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lambda
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce1c89d95a1e89d9a879d6674074592c1de94b9c492a144269433e5155ae0b4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce1c89d95a1e89d9a879d6674074592c1de94b9c492a144269433e5155ae0b4c", kill_on_drop: false }`
[INFO] [stdout] ce1c89d95a1e89d9a879d6674074592c1de94b9c492a144269433e5155ae0b4c
[INFO] testing elipmoc/RustLambda against try#5e4273472e1b2f223618a9b3def795f6224f241d for pr-118825
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felipmoc%2FRustLambda" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/elipmoc/RustLambda on toolchain 5e4273472e1b2f223618a9b3def795f6224f241d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/elipmoc/RustLambda
[INFO] finished tweaking git repo https://github.com/elipmoc/RustLambda
[INFO] tweaked toml for git repo https://github.com/elipmoc/RustLambda written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/elipmoc/RustLambda 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" "+5e4273472e1b2f223618a9b3def795f6224f241d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73c719cbbafefd9c59832a9a885dfc0562b59a8ea8cdc66db0784e75081c57cc
[INFO] running `Command { std: "docker" "start" "-a" "73c719cbbafefd9c59832a9a885dfc0562b59a8ea8cdc66db0784e75081c57cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73c719cbbafefd9c59832a9a885dfc0562b59a8ea8cdc66db0784e75081c57cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c719cbbafefd9c59832a9a885dfc0562b59a8ea8cdc66db0784e75081c57cc", kill_on_drop: false }`
[INFO] [stdout] 73c719cbbafefd9c59832a9a885dfc0562b59a8ea8cdc66db0784e75081c57cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 192ea6983f2b1f86da6f2efe46bd5b918dfd48477e2b24202b1319711ac88c1a
[INFO] running `Command { std: "docker" "start" "-a" "192ea6983f2b1f86da6f2efe46bd5b918dfd48477e2b24202b1319711ac88c1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling libc v0.2.41
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling combine v3.3.0
[INFO] [stderr]    Compiling rustλ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> lambda/lambda_trait.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn convert(&From) -> Self;
[INFO] [stdout]    |                ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &From`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "192ea6983f2b1f86da6f2efe46bd5b918dfd48477e2b24202b1319711ac88c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "192ea6983f2b1f86da6f2efe46bd5b918dfd48477e2b24202b1319711ac88c1a", kill_on_drop: false }`
[INFO] [stdout] 192ea6983f2b1f86da6f2efe46bd5b918dfd48477e2b24202b1319711ac88c1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/containers/7f1c2a632ce68e213ea31e66a19a821d9c7e87be6df90db65ee0373ff25a4d6c/.tmp-config.v2.json243903420: no space left on device