[INFO] cloning repository https://github.com/neuetral/regression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neuetral/regression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneuetral%2Fregression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneuetral%2Fregression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d614f8abbe5907ddacdd8a91222704d32cf8eb0
[INFO] checking neuetral/regression against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneuetral%2Fregression" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neuetral/regression on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/neuetral/regression
[INFO] finished tweaking git repo https://github.com/neuetral/regression
[INFO] tweaked toml for git repo https://github.com/neuetral/regression written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/neuetral/regression already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 271d97b373105748f3568ed3f93f8534c6974f8347feaeedbfe87b5b6ff5fe0a
[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" "271d97b373105748f3568ed3f93f8534c6974f8347feaeedbfe87b5b6ff5fe0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "271d97b373105748f3568ed3f93f8534c6974f8347feaeedbfe87b5b6ff5fe0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "271d97b373105748f3568ed3f93f8534c6974f8347feaeedbfe87b5b6ff5fe0a", kill_on_drop: false }`
[INFO] [stdout] 271d97b373105748f3568ed3f93f8534c6974f8347feaeedbfe87b5b6ff5fe0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ffa9e2dc8c881c810930c7f4dcbbce430983b4930a1b44e0e8fe98f4b06ca8b
[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" "1ffa9e2dc8c881c810930c7f4dcbbce430983b4930a1b44e0e8fe98f4b06ca8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.28
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking matrixmultiply v0.2.2
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac 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 quote v0.6.12
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-complex v0.2.1
[INFO] [stderr]     Checking alga v0.9.0
[INFO] [stderr]     Checking statrs v0.10.0
[INFO] [stderr]     Checking nalgebra v0.18.0
[INFO] [stderr]     Checking csv v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking regression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:292:46
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn csv_extractor() -> Result<Extraction, Box<Error>> {
[INFO] [stdout]     |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:315:44
[INFO] [stdout]     |
[INFO] [stdout] 315 | fn get_first_arg() -> Result<OsString, Box<Error>> {
[INFO] [stdout]     |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:323:29
[INFO] [stdout]     |
[INFO] [stdout] 323 | fn main() -> Result<(), Box<Error>> {
[INFO] [stdout]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:292:46
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn csv_extractor() -> Result<Extraction, Box<Error>> {
[INFO] [stdout]     |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:315:44
[INFO] [stdout]     |
[INFO] [stdout] 315 | fn get_first_arg() -> Result<OsString, Box<Error>> {
[INFO] [stdout]     |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:323:29
[INFO] [stdout]     |
[INFO] [stdout] 323 | fn main() -> Result<(), Box<Error>> {
[INFO] [stdout]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.55s
[INFO] running `Command { std: "docker" "inspect" "1ffa9e2dc8c881c810930c7f4dcbbce430983b4930a1b44e0e8fe98f4b06ca8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffa9e2dc8c881c810930c7f4dcbbce430983b4930a1b44e0e8fe98f4b06ca8b", kill_on_drop: false }`
[INFO] [stdout] 1ffa9e2dc8c881c810930c7f4dcbbce430983b4930a1b44e0e8fe98f4b06ca8b