[INFO] cloning repository https://github.com/JamesMcClung/calcrs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamesMcClung/calcrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesMcClung%2Fcalcrs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesMcClung%2Fcalcrs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fcf7089104c3f2dbc30add60e1f720513804e2af [INFO] checking JamesMcClung/calcrs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesMcClung%2Fcalcrs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JamesMcClung/calcrs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JamesMcClung/calcrs [INFO] finished tweaking git repo https://github.com/JamesMcClung/calcrs [INFO] tweaked toml for git repo https://github.com/JamesMcClung/calcrs written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/JamesMcClung/calcrs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded termion v2.0.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4f596547ff2500a1b0b3c6d89fa8f9aa09c23d5bac54733ac5532c8608015bc4 [INFO] running `Command { std: "docker" "start" "-a" "4f596547ff2500a1b0b3c6d89fa8f9aa09c23d5bac54733ac5532c8608015bc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4f596547ff2500a1b0b3c6d89fa8f9aa09c23d5bac54733ac5532c8608015bc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f596547ff2500a1b0b3c6d89fa8f9aa09c23d5bac54733ac5532c8608015bc4", kill_on_drop: false }` [INFO] [stdout] 4f596547ff2500a1b0b3c6d89fa8f9aa09c23d5bac54733ac5532c8608015bc4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5ad2ab6dd65cd783f9ddcb04e227c2dc7403643150a7e88b32218ee61c0cce6a [INFO] running `Command { std: "docker" "start" "-a" "5ad2ab6dd65cd783f9ddcb04e227c2dc7403643150a7e88b32218ee61c0cce6a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.67 [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Compiling libc v0.2.148 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.37 [INFO] [stderr] Checking termion v2.0.1 [INFO] [stderr] Checking let_match v0.1.0 (/opt/rustwide/workdir/let_match) [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> let_match/src/lib.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use syn::{self, Expr, Pat, Token}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> let_match/src/lib.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use syn::{self, Expr, Pat, Token}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> let_match/src/lib.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use syn::{self, Expr, Pat, Token}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking calcrs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.38s [INFO] running `Command { std: "docker" "inspect" "5ad2ab6dd65cd783f9ddcb04e227c2dc7403643150a7e88b32218ee61c0cce6a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ad2ab6dd65cd783f9ddcb04e227c2dc7403643150a7e88b32218ee61c0cce6a", kill_on_drop: false }` [INFO] [stdout] 5ad2ab6dd65cd783f9ddcb04e227c2dc7403643150a7e88b32218ee61c0cce6a [INFO] checking JamesMcClung/calcrs against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesMcClung%2Fcalcrs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JamesMcClung/calcrs on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JamesMcClung/calcrs [INFO] finished tweaking git repo https://github.com/JamesMcClung/calcrs [INFO] tweaked toml for git repo https://github.com/JamesMcClung/calcrs written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/JamesMcClung/calcrs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fd03562f6507ee91ef72ee4206969ec07009e1fc0704b7371332d587cf4395e8 [INFO] running `Command { std: "docker" "start" "-a" "fd03562f6507ee91ef72ee4206969ec07009e1fc0704b7371332d587cf4395e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fd03562f6507ee91ef72ee4206969ec07009e1fc0704b7371332d587cf4395e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd03562f6507ee91ef72ee4206969ec07009e1fc0704b7371332d587cf4395e8", kill_on_drop: false }` [INFO] [stdout] fd03562f6507ee91ef72ee4206969ec07009e1fc0704b7371332d587cf4395e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6993c2677f281069a8fe686530d30c7855ef85283109870bf22776d162d9619c [INFO] running `Command { std: "docker" "start" "-a" "6993c2677f281069a8fe686530d30c7855ef85283109870bf22776d162d9619c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.67 [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Compiling libc v0.2.148 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking quote v1.0.33 [INFO] [stderr] Checking syn v2.0.37 [INFO] [stderr] Checking termion v2.0.1 [INFO] [stderr] Checking let_match v0.1.0 (/opt/rustwide/workdir/let_match) [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> let_match/src/lib.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use syn::{self, Expr, Pat, Token}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> let_match/src/lib.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use syn::{self, Expr, Pat, Token}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> let_match/src/lib.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use syn::{self, Expr, Pat, Token}; [INFO] [stdout] | ^^^^ the item `syn` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking calcrs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.10s [INFO] running `Command { std: "docker" "inspect" "6993c2677f281069a8fe686530d30c7855ef85283109870bf22776d162d9619c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6993c2677f281069a8fe686530d30c7855ef85283109870bf22776d162d9619c", kill_on_drop: false }` [INFO] [stdout] 6993c2677f281069a8fe686530d30c7855ef85283109870bf22776d162d9619c