[INFO] fetching crate lambda_calculus 3.0.1...
[INFO] testing lambda_calculus-3.0.1 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate lambda_calculus 3.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate lambda_calculus 3.0.1 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lambda_calculus 3.0.1
[INFO] finished tweaking crates.io crate lambda_calculus 3.0.1
[INFO] tweaked toml for crates.io crate lambda_calculus 3.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", 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] c1e1ab01b4444dce148034e7d7065b9860b80d263bf73ebf495a7a4997f5c854
[INFO] running `Command { std: "docker" "start" "-a" "c1e1ab01b4444dce148034e7d7065b9860b80d263bf73ebf495a7a4997f5c854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1e1ab01b4444dce148034e7d7065b9860b80d263bf73ebf495a7a4997f5c854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e1ab01b4444dce148034e7d7065b9860b80d263bf73ebf495a7a4997f5c854", kill_on_drop: false }`
[INFO] [stdout] c1e1ab01b4444dce148034e7d7065b9860b80d263bf73ebf495a7a4997f5c854
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80fa87e20ed5021fb3cc5c43476720e75f7f9a446a7065b2d38746334925f503
[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" "80fa87e20ed5021fb3cc5c43476720e75f7f9a446a7065b2d38746334925f503", kill_on_drop: false }`
[INFO] [stderr]    Compiling lambda_calculus v3.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "80fa87e20ed5021fb3cc5c43476720e75f7f9a446a7065b2d38746334925f503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80fa87e20ed5021fb3cc5c43476720e75f7f9a446a7065b2d38746334925f503", kill_on_drop: false }`
[INFO] [stdout] 80fa87e20ed5021fb3cc5c43476720e75f7f9a446a7065b2d38746334925f503
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--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] fb51b3f7fb4e32e60e2bfa2f0c7b46cfb564653b76a5276394a14f7b5463ddaa
[INFO] running `Command { std: "docker" "start" "-a" "fb51b3f7fb4e32e60e2bfa2f0c7b46cfb564653b76a5276394a14f7b5463ddaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling lambda_calculus v3.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.09s
[INFO] running `Command { std: "docker" "inspect" "fb51b3f7fb4e32e60e2bfa2f0c7b46cfb564653b76a5276394a14f7b5463ddaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb51b3f7fb4e32e60e2bfa2f0c7b46cfb564653b76a5276394a14f7b5463ddaa", kill_on_drop: false }`
[INFO] [stdout] fb51b3f7fb4e32e60e2bfa2f0c7b46cfb564653b76a5276394a14f7b5463ddaa
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f5fb018680087a477bdc66fdacb3c76bb7c0b7549f13e43ab18426c65d0b2cf
[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" "9f5fb018680087a477bdc66fdacb3c76bb7c0b7549f13e43ab18426c65d0b2cf", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 13 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lambda_calculus-ebe4b8ce74252424)
[INFO] [stdout] test parser::tests::parse_quine ... ok
[INFO] [stdout] test parser::tests::tokenization_success ... ok
[INFO] [stdout] test term::tests::abs_macro ... ok
[INFO] [stdout] test term::tests::is_supercombinator ... ok
[INFO] [stdout] test term::tests::open_term_display ... ok
[INFO] [stderr]      Running tests/lists.rs (/opt/rustwide/target/debug/deps/lists-e228a12bc5627390)
[INFO] [stdout] test parser::tests::succ_ast ... ok
[INFO] [stdout] test parser::tests::alternative_lambda_parsing ... ok
[INFO] [stdout] test term::tests::app_macro ... ok
[INFO] [stdout] test parser::tests::tokenization_error ... ok
[INFO] [stdout] test term::tests::display_modes ... ok
[INFO] [stdout] test parser::tests::tokenization_success_classic ... ok
[INFO] [stdout] test parser::tests::parse_y ... ok
[INFO] [stdout] test parser::tests::parse_blc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/num.rs (/opt/rustwide/target/debug/deps/num-c1c02f37dca45dbe)
[INFO] [stdout] test list_head ... ok
[INFO] [stdout] test list_tail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test church_mul ... ok
[INFO] [stdout] test church_max ... ok
[INFO] [stdout] test church_pow ... ok
[INFO] [stdout] test church_min ... ok
[INFO] [stdout] test church_sub ... ok
[INFO] [stdout] test parigot_add ... ok
[INFO] [stdout] test num_succ ... ok
[INFO] [stdout] test parigot_sub ... ok
[INFO] [stdout] test church_fac ... ok
[INFO] [stdout] test parigot_mul ... ok
[INFO] [stdout] test scott_add ... ok
[INFO] [stdout] test church_div ... ok
[INFO] [stdout] test church_rem ... ok
[INFO] [stdout] test num_pred ... ok
[INFO] [stdout] test church_shl ... ok
[INFO] [stdout] test church_add ... ok
[INFO] [stdout] test stumpfu_add ... ok
[INFO] [stdout] test stumpfu_mul ... ok
[INFO] [stdout] test church_quot ... ok
[INFO] [stdout] test scott_mul ... ok
[INFO] [stdout] test scott_pow ... ok
[INFO] [stdout] test church_shr ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/option.rs (/opt/rustwide/target/debug/deps/option-e5e68a11e32c1fda)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test option_is_none ... ok
[INFO] [stdout] test option_some ... ok
[INFO] [stdout] test option_map_or ... ok
[INFO] [stdout] test option_unwrap_or ... ok
[INFO] [stdout] test option_none ... ok
[INFO] [stdout] test option_and_then ... ok
[INFO] [stdout] test option_is_some ... ok
[INFO] [stdout] test option_map ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/pair_list.rs (/opt/rustwide/target/debug/deps/pair_list-fea6a219785f8194)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test pair_list_head ... ok
[INFO] [stdout] test pair_list_tail ... ok
[INFO] [stdout] test pair_list_index ... ok
[INFO] [stdout] test pair_list_replicate ... ok
[INFO] [stderr]      Running tests/reduction.rs (/opt/rustwide/target/debug/deps/reduction-7325b43ec91a1635)
[INFO] [stdout] test pair_list_drop ... ok
[INFO] [stdout] test pair_list_list ... ok
[INFO] [stdout] test pair_list_append ... ok
[INFO] [stdout] test pair_list_reverse ... ok
[INFO] [stdout] test pair_list_drop_while ... ok
[INFO] [stdout] test pair_list_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test reduction_huge ... ignored
[INFO] [stdout] test reduction_cbn ... ok
[INFO] [stdout] test reduction_app ... ok
[INFO] [stdout] test reduction_cbv ... ok
[INFO] [stderr]      Running tests/signed.rs (/opt/rustwide/target/debug/deps/signed-a52d1fbba9de4bd1)
[INFO] [stdout] test reduction_nor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test signed_neg ... ok
[INFO] [stdout] test signed_modulus ... ok
[INFO] [stdout] test signed_simplify ... ok
[INFO] [stdout] test signed_mul ... ok
[INFO] [stdout] test signed_sub ... ok
[INFO] [stdout] test signed_add ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lambda_calculus
[INFO] [stdout] 
[INFO] [stdout] running 177 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name lambda_calculus --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern lambda_calculus=/opt/rustwide/target/debug/deps/liblambda_calculus-67be88c221f51b7d.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="encoding"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "9f5fb018680087a477bdc66fdacb3c76bb7c0b7549f13e43ab18426c65d0b2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f5fb018680087a477bdc66fdacb3c76bb7c0b7549f13e43ab18426c65d0b2cf", kill_on_drop: false }`
[INFO] [stdout] 9f5fb018680087a477bdc66fdacb3c76bb7c0b7549f13e43ab18426c65d0b2cf