[INFO] updating cached repository https://github.com/tage64/mental-calc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b3717683f040ff9161974d24ab6b8410e9daa22
[INFO] testing tage64/mental-calc against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftage64%2Fmental-calc" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tage64/mental-calc on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tage64/mental-calc
[INFO] finished tweaking git repo https://github.com/tage64/mental-calc
[INFO] tweaked toml for git repo https://github.com/tage64/mental-calc written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/tage64/mental-calc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c92ca5c84a559d5591186efe255e98fed3161686d21211b9602e87b7bcaa17b2
[INFO] running `"docker" "start" "-a" "c92ca5c84a559d5591186efe255e98fed3161686d21211b9602e87b7bcaa17b2"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling boxfnonce v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling terminal_size v0.1.11
[INFO] [stderr]    Compiling termios v0.3.2
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling console v0.10.1
[INFO] [stderr]    Compiling dialoguer v0.3.0
[INFO] [stderr]    Compiling mental_calc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |     task_producers: Vec<Box<TaskProducer<Number = T>>>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:137:40
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn new(task_producers: Vec<Box<TaskProducer<Number = T>>>) -> Self {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:33:37
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut task_producers: Vec<Box<TaskProducer<Number = Number>>> = Vec::with_capacity(1);
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = Number>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:63:47
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn add_task_producer() -> IoResult<Option<Box<TaskProducer<Number = Number>>>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = Number>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.60s
[INFO] running `"docker" "inspect" "c92ca5c84a559d5591186efe255e98fed3161686d21211b9602e87b7bcaa17b2"`
[INFO] running `"docker" "rm" "-f" "c92ca5c84a559d5591186efe255e98fed3161686d21211b9602e87b7bcaa17b2"`
[INFO] [stdout] c92ca5c84a559d5591186efe255e98fed3161686d21211b9602e87b7bcaa17b2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stdout] dc607bffb0f2e0391faa00e1c0cff0b848ce891d25cb7f59dac087efd096376c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "dc607bffb0f2e0391faa00e1c0cff0b848ce891d25cb7f59dac087efd096376c"`
[INFO] [stderr]    Compiling mental_calc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |     task_producers: Vec<Box<TaskProducer<Number = T>>>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:137:40
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn new(task_producers: Vec<Box<TaskProducer<Number = T>>>) -> Self {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:33:37
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut task_producers: Vec<Box<TaskProducer<Number = Number>>> = Vec::with_capacity(1);
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = Number>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:63:47
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn add_task_producer() -> IoResult<Option<Box<TaskProducer<Number = Number>>>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = Number>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |     task_producers: Vec<Box<TaskProducer<Number = T>>>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:137:40
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn new(task_producers: Vec<Box<TaskProducer<Number = T>>>) -> Self {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "dc607bffb0f2e0391faa00e1c0cff0b848ce891d25cb7f59dac087efd096376c"`
[INFO] running `"docker" "rm" "-f" "dc607bffb0f2e0391faa00e1c0cff0b848ce891d25cb7f59dac087efd096376c"`
[INFO] [stdout] dc607bffb0f2e0391faa00e1c0cff0b848ce891d25cb7f59dac087efd096376c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a12d94e3f6f11377803d993d569fbef5a4ddad5332383ca20c1e225318d208c0
[INFO] running `"docker" "start" "-a" "a12d94e3f6f11377803d993d569fbef5a4ddad5332383ca20c1e225318d208c0"`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |     task_producers: Vec<Box<TaskProducer<Number = T>>>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:137:40
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn new(task_producers: Vec<Box<TaskProducer<Number = T>>>) -> Self {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |     task_producers: Vec<Box<TaskProducer<Number = T>>>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:137:40
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn new(task_producers: Vec<Box<TaskProducer<Number = T>>>) -> Self {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:33:37
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut task_producers: Vec<Box<TaskProducer<Number = Number>>> = Vec::with_capacity(1);
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = Number>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:63:47
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn add_task_producer() -> IoResult<Option<Box<TaskProducer<Number = Number>>>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TaskProducer<Number = Number>`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mental_calc-557849d765dc701c
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mcalc-b77fb5ee841dc2e5
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mental_calc
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a12d94e3f6f11377803d993d569fbef5a4ddad5332383ca20c1e225318d208c0"`
[INFO] running `"docker" "rm" "-f" "a12d94e3f6f11377803d993d569fbef5a4ddad5332383ca20c1e225318d208c0"`
[INFO] [stdout] a12d94e3f6f11377803d993d569fbef5a4ddad5332383ca20c1e225318d208c0