[INFO] cloning repository https://github.com/wmealing/prelim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wmealing/prelim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmealing%2Fprelim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmealing%2Fprelim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b9394e4995f1356aec78c30b38756d1640d93f8
[INFO] checking wmealing/prelim against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwmealing%2Fprelim" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wmealing/prelim on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wmealing/prelim
[INFO] finished tweaking git repo https://github.com/wmealing/prelim
[INFO] tweaked toml for git repo https://github.com/wmealing/prelim written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/wmealing/prelim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_core v0.4.0
[INFO] [stderr]   Downloaded byteorder v1.3.1
[INFO] [stderr]   Downloaded syn v0.15.34
[INFO] [stderr]   Downloaded termion v1.5.2
[INFO] [stderr]   Downloaded encode_unicode v0.3.5
[INFO] [stderr]   Downloaded blake2-rfc v0.2.18
[INFO] [stderr]   Downloaded backtrace v0.3.26
[INFO] [stderr]   Downloaded csv-core v0.1.5
[INFO] [stderr]   Downloaded arrayvec v0.4.10
[INFO] [stderr]   Downloaded backtrace-sys v0.1.28
[INFO] [stderr]   Downloaded getopts v0.2.19
[INFO] [stderr]   Downloaded rustc-demangle v0.1.15
[INFO] [stderr]   Downloaded constant_time_eq v0.1.3
[INFO] [stderr]   Downloaded argon2rs v0.2.5
[INFO] [stderr]   Downloaded redox_users v0.3.0
[INFO] [stderr]   Downloaded rev_lines v0.2.1
[INFO] [stderr]   Downloaded autocfg v0.1.4
[INFO] [stderr]   Downloaded dirs v1.0.5
[INFO] [stderr]   Downloaded term v0.5.2
[INFO] [stderr]   Downloaded prettytable-rs v0.8.0
[INFO] [stderr]   Downloaded csv v1.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b51a8b41db49fdee86f9c70d0045955d9550725d17bf626f9a13b603905657a7
[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" "b51a8b41db49fdee86f9c70d0045955d9550725d17bf626f9a13b603905657a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b51a8b41db49fdee86f9c70d0045955d9550725d17bf626f9a13b603905657a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b51a8b41db49fdee86f9c70d0045955d9550725d17bf626f9a13b603905657a7", kill_on_drop: false }`
[INFO] [stdout] b51a8b41db49fdee86f9c70d0045955d9550725d17bf626f9a13b603905657a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63e1476d9c6ddf17cf9946956784b4f428887b786bf652ac284c8e5a0a43f518
[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" "63e1476d9c6ddf17cf9946956784b4f428887b786bf652ac284c8e5a0a43f518", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking encode_unicode v0.3.5
[INFO] [stderr]     Checking rev_lines v0.2.1
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking csv v1.0.7
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking prelim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:174:56
[INFO] [stdout]     |
[INFO] [stdout] 174 |             println!("couldn't open {}: {}", name, why.description());
[INFO] [stdout]     |                                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |         Err(e) => {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:174:56
[INFO] [stdout]     |
[INFO] [stdout] 174 |             println!("couldn't open {}: {}", name, why.description());
[INFO] [stdout]     |                                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |         Err(e) => {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.00s
[INFO] running `Command { std: "docker" "inspect" "63e1476d9c6ddf17cf9946956784b4f428887b786bf652ac284c8e5a0a43f518", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e1476d9c6ddf17cf9946956784b4f428887b786bf652ac284c8e5a0a43f518", kill_on_drop: false }`
[INFO] [stdout] 63e1476d9c6ddf17cf9946956784b4f428887b786bf652ac284c8e5a0a43f518