[INFO] cloning repository https://github.com/malbarbo/mstcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/malbarbo/mstcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalbarbo%2Fmstcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalbarbo%2Fmstcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b48336773edbf87006d19a226845ad21156b86fe
[INFO] testing malbarbo/mstcc against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalbarbo%2Fmstcc" "/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/malbarbo/mstcc 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/malbarbo/mstcc
[INFO] finished tweaking git repo https://github.com/malbarbo/mstcc
[INFO] tweaked toml for git repo https://github.com/malbarbo/mstcc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/malbarbo/mstcc 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] [stdout] 6c5bbd64435950223f6b2aa3fc9378182c4df6ff2cd0a83ee0fbafafffd187e6
[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" "6c5bbd64435950223f6b2aa3fc9378182c4df6ff2cd0a83ee0fbafafffd187e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c5bbd64435950223f6b2aa3fc9378182c4df6ff2cd0a83ee0fbafafffd187e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c5bbd64435950223f6b2aa3fc9378182c4df6ff2cd0a83ee0fbafafffd187e6", kill_on_drop: false }`
[INFO] [stdout] 6c5bbd64435950223f6b2aa3fc9378182c4df6ff2cd0a83ee0fbafafffd187e6
[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] db5dc84597ed5a9b5412d1faeed60f0dab52213ccd1883eb5f1b1a47c4ca61bf
[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" "db5dc84597ed5a9b5412d1faeed60f0dab52213ccd1883eb5f1b1a47c4ca61bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling fera-fun v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling fera-unionfind v0.1.0
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling env_logger v0.5.9
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling fera-optional v0.1.1
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling fera-ext v0.1.0
[INFO] [stderr]    Compiling fera-graph v0.1.1
[INFO] [stderr]    Compiling fera v0.1.0
[INFO] [stderr]    Compiling mstcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/input.rs:13:68
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn read_sammer_urrutia(file: &str) -> Result<MstCcProblem, Box<Error>> {
[INFO] [stdout]    |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.17s
[INFO] running `Command { std: "docker" "inspect" "db5dc84597ed5a9b5412d1faeed60f0dab52213ccd1883eb5f1b1a47c4ca61bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db5dc84597ed5a9b5412d1faeed60f0dab52213ccd1883eb5f1b1a47c4ca61bf", kill_on_drop: false }`
[INFO] [stdout] db5dc84597ed5a9b5412d1faeed60f0dab52213ccd1883eb5f1b1a47c4ca61bf
[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] 6ab754ceb13924445ec45be3c9a111a72b3663f500fcb16c40e0f89c5dd1bc81
[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" "6ab754ceb13924445ec45be3c9a111a72b3663f500fcb16c40e0f89c5dd1bc81", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/input.rs:13:68
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn read_sammer_urrutia(file: &str) -> Result<MstCcProblem, Box<Error>> {
[INFO] [stdout]    |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mstcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/input.rs:13:68
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn read_sammer_urrutia(file: &str) -> Result<MstCcProblem, Box<Error>> {
[INFO] [stdout]    |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `Command { std: "docker" "inspect" "6ab754ceb13924445ec45be3c9a111a72b3663f500fcb16c40e0f89c5dd1bc81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ab754ceb13924445ec45be3c9a111a72b3663f500fcb16c40e0f89c5dd1bc81", kill_on_drop: false }`
[INFO] [stdout] 6ab754ceb13924445ec45be3c9a111a72b3663f500fcb16c40e0f89c5dd1bc81
[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] 0d5deee531e8102656b758d3fc9c38005ab191e19ea5c9e4df47176f30d081ea
[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" "0d5deee531e8102656b758d3fc9c38005ab191e19ea5c9e4df47176f30d081ea", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/input.rs:13:68
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn read_sammer_urrutia(file: &str) -> Result<MstCcProblem, Box<Error>> {
[INFO] [stderr]    |                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `mstcc` (lib) generated 1 warning
[INFO] [stderr] warning: `mstcc` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mstcc-77506dd8f1b820e9)
[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] [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/mstcc-4b096fe124db4525)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/conflicts.rs (/opt/rustwide/target/debug/deps/conflicts-d6ce99efe1aec047)
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/connectivity1.rs (/opt/rustwide/target/debug/deps/connectivity1-80f9b79b0bb867e8)
[INFO] [stdout] test remove_edge ... ok
[INFO] [stdout] test add_edge ... 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 1 test
[INFO] [stderr]      Running tests/connectivity2.rs (/opt/rustwide/target/debug/deps/connectivity2-c8232c7403b86282)
[INFO] [stdout] test test1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test0 ... ok
[INFO] [stdout] test test1 ... ok
[INFO] [stdout] test test2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mstcc
[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" "0d5deee531e8102656b758d3fc9c38005ab191e19ea5c9e4df47176f30d081ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5deee531e8102656b758d3fc9c38005ab191e19ea5c9e4df47176f30d081ea", kill_on_drop: false }`
[INFO] [stdout] 0d5deee531e8102656b758d3fc9c38005ab191e19ea5c9e4df47176f30d081ea