[INFO] cloning repository https://github.com/St4NNi/jam-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/St4NNi/jam-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSt4NNi%2Fjam-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSt4NNi%2Fjam-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b5b72b9ec4dc4fbf02415bccf1cec0a352164a6
[INFO] checking St4NNi/jam-rs/2b5b72b9ec4dc4fbf02415bccf1cec0a352164a6 against master#e9182f195b8505c87c4bd055b9f6e114ccda0981 for pr-144098
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSt4NNi%2Fjam-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/St4NNi/jam-rs
[INFO] finished tweaking git repo https://github.com/St4NNi/jam-rs
[INFO] tweaked toml for git repo https://github.com/St4NNi/jam-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/St4NNi/jam-rs on toolchain e9182f195b8505c87c4bd055b9f6e114ccda0981
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/St4NNi/jam-rs 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" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f790fbe06b2c07e42315849068e4f4b68d49fb2febb68fd9e67ef3768a3b3dc
[INFO] running `Command { std: "docker" "start" "-a" "6f790fbe06b2c07e42315849068e4f4b68d49fb2febb68fd9e67ef3768a3b3dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f790fbe06b2c07e42315849068e4f4b68d49fb2febb68fd9e67ef3768a3b3dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f790fbe06b2c07e42315849068e4f4b68d49fb2febb68fd9e67ef3768a3b3dc", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d141fc6934eebfa21968b335b0c0bff5d100cfbecfaad12928aade5bd1ee54b
[INFO] running `Command { std: "docker" "start" "-a" "7d141fc6934eebfa21968b335b0c0bff5d100cfbecfaad12928aade5bd1ee54b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
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[INFO] [stderr]     Checking jam-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NoHashHasher` is never constructed
[INFO] [stdout]  --> src/hasher.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct NoHashHasher(u64);
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VarIntEncoder` is never constructed
[INFO] [stdout]  --> src/varintencoding.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VarIntEncoder;
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoHashHasher` is never constructed
[INFO] [stdout]  --> src/hasher.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct NoHashHasher(u64);
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VarIntEncoder` is never constructed
[INFO] [stdout]  --> src/varintencoding.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct VarIntEncoder;
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.38s
[INFO] running `Command { std: "docker" "inspect" "7d141fc6934eebfa21968b335b0c0bff5d100cfbecfaad12928aade5bd1ee54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d141fc6934eebfa21968b335b0c0bff5d100cfbecfaad12928aade5bd1ee54b", kill_on_drop: false }`
[INFO] [stdout] 7d141fc6934eebfa21968b335b0c0bff5d100cfbecfaad12928aade5bd1ee54b