[INFO] cloning repository https://github.com/onContentStop/silver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/onContentStop/silver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FonContentStop%2Fsilver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FonContentStop%2Fsilver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e51c32189839b24c029eb52c87f9b4ed3b0c75a0
[INFO] testing onContentStop/silver against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FonContentStop%2Fsilver" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/onContentStop/silver on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/onContentStop/silver
[INFO] finished tweaking git repo https://github.com/onContentStop/silver
[INFO] tweaked toml for git repo https://github.com/onContentStop/silver written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/onContentStop/silver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] 4dc65897f62fdf5310886fd6ebe4114e507a618cb7980a55c4df309f732f85e5
[INFO] running `Command { std: "docker" "start" "-a" "4dc65897f62fdf5310886fd6ebe4114e507a618cb7980a55c4df309f732f85e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dc65897f62fdf5310886fd6ebe4114e507a618cb7980a55c4df309f732f85e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dc65897f62fdf5310886fd6ebe4114e507a618cb7980a55c4df309f732f85e5", kill_on_drop: false }`
[INFO] [stdout] 4dc65897f62fdf5310886fd6ebe4114e507a618cb7980a55c4df309f732f85e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c252c520d3cee381372067476c3d60c59ec5c3d4c34c281fccca7c33a389be1a
[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" "c252c520d3cee381372067476c3d60c59ec5c3d4c34c281fccca7c33a389be1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling smallvec v1.5.1
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.1
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling signal-hook-registry v1.2.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling crossterm v0.18.2
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling silver-language v0.1.0 (/opt/rustwide/workdir/silver-language)
[INFO] [stderr]    Compiling silver v0.1.0 (/opt/rustwide/workdir/silver)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.95s
[INFO] running `Command { std: "docker" "inspect" "c252c520d3cee381372067476c3d60c59ec5c3d4c34c281fccca7c33a389be1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c252c520d3cee381372067476c3d60c59ec5c3d4c34c281fccca7c33a389be1a", kill_on_drop: false }`
[INFO] [stdout] c252c520d3cee381372067476c3d60c59ec5c3d4c34c281fccca7c33a389be1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b41c9b9f3fdfa040216a2f82a9618a3bbe8e1fd8431675ae89fb08015e2944c
[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" "5b41c9b9f3fdfa040216a2f82a9618a3bbe8e1fd8431675ae89fb08015e2944c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling silver v0.1.0 (/opt/rustwide/workdir/silver)
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling credibility v0.1.3
[INFO] [stderr]    Compiling silver-language v0.1.0 (/opt/rustwide/workdir/silver-language)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.16s
[INFO] running `Command { std: "docker" "inspect" "5b41c9b9f3fdfa040216a2f82a9618a3bbe8e1fd8431675ae89fb08015e2944c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b41c9b9f3fdfa040216a2f82a9618a3bbe8e1fd8431675ae89fb08015e2944c", kill_on_drop: false }`
[INFO] [stdout] 5b41c9b9f3fdfa040216a2f82a9618a3bbe8e1fd8431675ae89fb08015e2944c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ca5cfc2640b2dc18f70c83eafae9eb2951a4730052c352b77f151f10b296520
[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" "5ca5cfc2640b2dc18f70c83eafae9eb2951a4730052c352b77f151f10b296520", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/silver-6519de75454f2071)
[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 (/opt/rustwide/target/debug/deps/silver_language-d86c52fe4c9f8e71)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test analysis::syntax::lexer::tests::lex_bad_token ... ok
[INFO] [stdout] test analysis::syntax::lexer::tests::lexer_tests_all_tokens ... ok
[INFO] [stdout] test analysis::syntax::lexer::tests::lexes_single_token ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::missing_binary_operand_left ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::missing_binary_operand_right ... ok
[INFO] [stdout] test analysis::evaluator::tests::evaluates_correctly ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::missing_unary_operand ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::missing_close_parenthesis ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::missing_open_parenthesis ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::parse_assignment_expression ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::parse_unary_operators ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::parse_binary_operators ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::parse_single_number ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::parse_name_expression ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::parse_boolean_literals ... ok
[INFO] [stdout] test analysis::syntax::syntax_facts::tests::get_text_round_trips ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::unary_and_binary_operators_respect_precedence ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::parse_parenthesized_expression ... ok
[INFO] [stdout] test analysis::syntax::lexer::tests::lex_bad_number_literal ... ok
[INFO] [stdout] test analysis::syntax::lexer::tests::lexes_token_pairs ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::empty_input ... ok
[INFO] [stdout] test analysis::syntax::parser::tests::binary_operators_respect_precedence ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests silver-language
[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" "5ca5cfc2640b2dc18f70c83eafae9eb2951a4730052c352b77f151f10b296520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ca5cfc2640b2dc18f70c83eafae9eb2951a4730052c352b77f151f10b296520", kill_on_drop: false }`
[INFO] [stdout] 5ca5cfc2640b2dc18f70c83eafae9eb2951a4730052c352b77f151f10b296520